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    <loc>https://volsurfacedesk.com/desk-notes/svi-sabr-volatility-surface-arbitrage-free-calibration-guide</loc>
    <lastmod>2026-11-14T19:48:08.226Z</lastmod>
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      <image:title>SVI and SABR Volatility Surface Calibration: 2026 Institutional No-Arbitrage Guide — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (SVI &amp; SABR Volatility Surface Calibration &amp; No-Arbitrage Conditions): Arbitrage-free SVI, SSVI, and Hagan SABR volatility surface engineering for index options and swaptions.</image:caption>
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      <image:title>End-to-end arbitrage-free SVI and SABR volatility surface calibration workflow from raw option quotes to PDE grid</image:title>
      <image:caption>SVI and SABR Volatility Surface Calibration: 2026 Institutional No-Arbitrage Guide — End-to-end arbitrage-free SVI and SABR volatility surface calibration workflow from raw option quotes to PDE grid (VolSurface Desk)</image:caption>
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      <image:title>Parametric volatility surface model calibration error and wing stability metrics across SVI SSVI SABR and Heston</image:title>
      <image:caption>SVI and SABR Volatility Surface Calibration: 2026 Institutional No-Arbitrage Guide — Parametric volatility surface model calibration error and wing stability metrics across SVI SSVI SABR and Heston (VolSurface Desk)</image:caption>
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  <url>
    <loc>https://volsurfacedesk.com/desk-notes/0dte-dealer-gamma-vanna-charm-rehedging-flows-guide</loc>
    <lastmod>2026-11-14T19:46:43.742Z</lastmod>
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      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/0dte-dealer-gamma-vanna-charm-rehedging-flows-guide-hero-2026.png</image:loc>
      <image:title>0DTE Index Options, Net Dealer Gamma (GEX), Vanna &amp; Charm Rehedging Flows Guide — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (0DTE Index Options, Dealer Gamma Pinning, Vanna &amp; Charm Rehedging): Complete institutional guide to 0DTE gamma pinning, Vanna/Charm second-order flows, and clearing risk.</image:caption>
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      <image:title>Institutional dealer hedging feedback loop from customer option flow to net Greeks and CME ES futures execution</image:title>
      <image:caption>0DTE Index Options, Net Dealer Gamma (GEX), Vanna &amp; Charm Rehedging Flows Guide — Institutional dealer hedging feedback loop from customer option flow to net Greeks and CME ES futures execution (VolSurface Desk)</image:caption>
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      <image:title>Relative contribution of Gamma Vanna Charm and Zomma to intraday dealer ES futures volume across four market regimes</image:title>
      <image:caption>0DTE Index Options, Net Dealer Gamma (GEX), Vanna &amp; Charm Rehedging Flows Guide — Relative contribution of Gamma Vanna Charm and Zomma to intraday dealer ES futures volume across four market regimes (VolSurface Desk)</image:caption>
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  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vix-term-structure-variance-swaps-vvix-tail-hedging-guide</loc>
    <lastmod>2026-11-14T20:33:34.746Z</lastmod>
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      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vix-term-structure-variance-swaps-vvix-tail-hedging-guide-hero-2026.png</image:loc>
      <image:title>VIX Term Structure, OTC Variance Swaps, VVIX Vol-of-Vol &amp; Tail Hedging Guide — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (VIX Term Structure, Variance Swaps, Vol-of-Vol VVIX &amp; Tail Hedging): Complete institutional desk guide to VIX futures, OTC variance swaps, VVIX convexity, and tail overlays.</image:caption>
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      <image:title>Hierarchy of volatility derivatives from SPX OTM 1/K2 strip to Spot VIX VX futures VVIX and OTC variance swaps</image:title>
      <image:caption>VIX Term Structure, OTC Variance Swaps, VVIX Vol-of-Vol &amp; Tail Hedging Guide — Hierarchy of volatility derivatives from SPX OTM 1/K2 strip to Spot VIX VX futures VVIX and OTC variance swaps (VolSurface Desk)</image:caption>
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      <image:title>Payout multiple during a 15 to 45 volatility spike across VIX futures linear vol swaps uncapped variance swaps and OTM VIX calls</image:title>
      <image:caption>VIX Term Structure, OTC Variance Swaps, VVIX Vol-of-Vol &amp; Tail Hedging Guide — Payout multiple during a 15 to 45 volatility spike across VIX futures linear vol swaps uncapped variance swaps and OTM VIX calls (VolSurface Desk)</image:caption>
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  <url>
    <loc>https://volsurfacedesk.com/desk-notes/fx-risk-reversal-butterfly-smile-surface-event-vol-guide</loc>
    <lastmod>2026-11-14T20:52:01.733Z</lastmod>
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      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/fx-risk-reversal-butterfly-smile-surface-event-vol-guide-hero-2026.png</image:loc>
      <image:title>FX Volatility Surfaces: 25-Delta Risk Reversals, 10d Butterflies &amp; Event Vol Guide — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (FX 25-Delta Risk Reversals, 10-Delta Butterflies &amp; Event Vol Weights): Complete interbank &amp; CME manual on FX delta conventions, RR/BF smile construction, and barrier Vanna.</image:caption>
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      <image:title>End-to-end FX volatility surface construction pipeline from interbank broker RR/BF quotes to strike surface and barrier PDE pricing</image:title>
      <image:caption>FX Volatility Surfaces: 25-Delta Risk Reversals, 10d Butterflies &amp; Event Vol Guide — End-to-end FX volatility surface construction pipeline from interbank broker RR/BF quotes to strike surface and barrier PDE pricing (VolSurface Desk)</image:caption>
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      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Representative%20FX%20Smile%20Geometry%20Across%20G10%20%26%20EM%20Currency%20Pairs&amp;subtitle=Comparing%20%7C25d%20Risk%20Reversal%7C%20skew%20and%2010d%20Butterfly%20wing%20convexity%20across%20four%20FX%20regimes&amp;steps=EUR%2FUSD%20%28Liquid%20Benchmark%29%3A%3AMild%20RR%20%28-0.4v%20to%20-1.1v%29%20%26%20tight%2010d%20BF%20%28%2B0.85v%29%3B%20balanced%20two-way%20central-bank%20flow%7CUSD%2FJPY%20%28Carry%20%2B%20PRDC%29%3A%3ADeep%20negative%20RR%20%28-1.4v%20to%20-3.2v%20for%20JPY%20calls%29%20%2B%20steep%2010d%20BF%20%28%2B1.65v%29%20on%20BoJ%20jump%20risk%7CGBP%2FUSD%20%28Cable%20Fiscal%29%3A%3APersistent%20GBP%20put%20skew%20%28-0.9v%20to%20-2.1v%29%20%2B%20elevated%2010d%20BF%20%28%2B1.25v%29%20around%20UK%20fiscal%20prints%7CUSD%2FMXN%20%28EM%20Carry%29%3A%3AMassive%20positive%20USD%20call%20RR%20%28%2B2.8v%20to%20%2B5.4v!%29%20%2B%20fat%2010d%20BF%20%28%2B2.90v%29%20pricing%20peso%20unwinds!&amp;metrics=EUR%2FUSD%2010d%20FLY%3A%3A~%2B0.85%20Vol%3A%3ADeepest%20Global%20Smile%7CUSD%2FJPY%2025d%20RR%3A%3A-1.5%20to%20-3.2v%3A%3AJPY%20Safe-Haven%20Bid%7CUSD%2FMXN%2025d%20RR%3A%3A%2B2.8%20to%20%2B5.4v%3A%3AEM%20Carry%20Crash%20Wing%7CREGULATORY%20SCOPE%3A%3ACFTC%20%2F%20FCA%20%2F%20JFSA%3A%3AGlobal%20Swap%20%26%20FX%20Rules</image:loc>
      <image:title>Typical 1-month 25-delta Risk Reversal and 10-delta Butterfly magnitudes across EUR/USD USD/JPY GBP/USD and USD/MXN</image:title>
      <image:caption>FX Volatility Surfaces: 25-Delta Risk Reversals, 10d Butterflies &amp; Event Vol Guide — Typical 1-month 25-delta Risk Reversal and 10-delta Butterfly magnitudes across EUR/USD USD/JPY GBP/USD and USD/MXN (VolSurface Desk)</image:caption>
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  <url>
    <loc>https://volsurfacedesk.com/desk-notes/implied-correlation-index-dispersion-earnings-vol-desk-guide</loc>
    <lastmod>2026-11-14T19:52:09.739Z</lastmod>
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      <image:title>Implied Correlation, Index Dispersion Baskets &amp; Earnings Vol Crush: Desk Manual — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (Implied Correlation, Index Dispersion Baskets &amp; Earnings Vol Crush): Institutional S&amp;P 500 &amp; NDX implied correlation math, basket leg sizing, earnings jumps, and tail risk.</image:caption>
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      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Institutional%20S%26P%20500%20Dispersion%20Desk%20Workflow%20%26%20Risk%20Architecture&amp;subtitle=End-to-end%20execution%20from%20implied%20correlation%20screening%20to%20daily%20delta-rehedging%20and%20crash%20protection&amp;steps=1.%20COR1M%20%2F%20Earnings%20Screen%3A%3ADecompose%20Cboe%20COR1M%2FCOR3M%20into%20diffusive%20macro%20%CF%81%20vs%20upcoming%20quarterly%20%CF%83_earn%C2%B2%20jumps%7C2.%20Proxy%20Basket%20%26%20Sizing%3A%3ASelect%2025%E2%80%9335%20PCA%2Fcap-optimized%20single%20stocks%3B%20choose%20Vega-%20vs%20Theta%2FVariance-neutral%20weights%7C3.%20OPRA%20%26%20OTC%20Execution%3A%3AWork%20single-stock%20volatility%20spreads%20via%20auto-quoters%20before%20legged%20SPX%20straddle%2Fvar-swap%20hedge%7C4.%20Margin%20%26%20Crash%20Defense%3A%3ACross-margin%20in%20FINRA%204210%20TIMS%20and%20attach%20VIX%20call-spread%20or%20put-corridor%20tail%20overlays&amp;metrics=EQUICORR%20FORMULA%3A%3AExact%20w_i%C2%B2%20Term%3A%3AMandatory%20for%20Mega-Caps%7CLONG%20DISPERSION%20P%26L%3A%3A%E2%88%9D%20%28%CF%81_imp%20%E2%88%92%20%CF%81_real%29%3A%3AShort%20Correlation%20Carry%7COPRA%20SLIPPAGE%20DRAG%3A%3A1.2%E2%80%932.8%20Corr%20Pts%3A%3ABid-Ask%20%2B%20Delta%20Rehedge%7CMARGIN%20REDUCTION%3A%3A65%25%E2%80%9382%25%20vs%20Reg-T%3A%3AFINRA%204210%20TIMS%20Offset</image:loc>
      <image:title>Institutional equity dispersion workflow from Cboe COR1M screening and proxy basket optimization to delta-hedged execution and tail overlays</image:title>
      <image:caption>Implied Correlation, Index Dispersion Baskets &amp; Earnings Vol Crush: Desk Manual — Institutional equity dispersion workflow from Cboe COR1M screening and proxy basket optimization to delta-hedged execution and tail overlays (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=S%26P%20500%20Implied%20vs%20Realized%20Pairwise%20Correlation%20Across%20Market%20Regimes&amp;subtitle=Tracking%20how%20the%20dispersion%20risk%20premium%20behaves%20from%20calm%20AI%20sector%20rotation%20to%20macro%20panic&amp;steps=Calm%20Sector%20Rotation%3A%3AImplied%20COR3M%2024%25%20vs%20Realized%2013%25%20%28%2B11%20pt%20harvest%29%3B%20AI%20winners%20diverge%20from%20defensives%7CPeak%20Earnings%20Window%3A%3AImplied%20COR1M%20drops%20to%2016%25%20as%20single-stock%20%CF%83_earn%20surges%3B%20realized%20%CF%81%20prints%209%25%E2%80%9312%25%7CFOMC%20%2F%20CPI%20Macro%20Week%3A%3AImplied%20COR1M%20rebounds%20to%2038%25%20while%20macro%20beta%20lifts%20realized%20correlation%20to%2044%25%20%28-6%20pt%20drag%29%7CDeleveraging%20Liquidation%3A%3ARealized%20%CF%81%20spikes%20to%2084%25%20overnight%20while%20COR1M%20jumps%20to%2072%25%3B%20unhedged%20Vega%20dispersion%20bleeds!&amp;metrics=BEST%20HARVEST%20REGIME%3A%3AEarnings%20%2B%20Rotation%3A%3A%2B8%20to%20%2B13%20Corr%20Points%7CWORST%20REGIME%3A%3AMacro%20Liquidation%3A%3A%CF%81%20Jumps%200.20%20%E2%86%92%200.84!%7CCLEARING%20%26%20MARGIN%3A%3AOCC%20%2F%20SEC%20%2F%20FINRA%3A%3ASTANS%20%2B%20Rule%204210%20TIMS%7CEXECUTION%20VENUES%3A%3ACboe%20%2B%2018%20OPRA%3A%3AComplex%20Order%20Books</image:loc>
      <image:title>Comparison of implied versus realized S&amp;P 500 pairwise correlation across four distinct macro and earnings regimes</image:title>
      <image:caption>Implied Correlation, Index Dispersion Baskets &amp; Earnings Vol Crush: Desk Manual — Comparison of implied versus realized S&amp;P 500 pairwise correlation across four distinct macro and earnings regimes (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/gatheral-raw-svi-five-parameter-total-variance-fitting</loc>
    <lastmod>2026-11-14T19:50:56.583Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/gatheral-raw-svi-five-parameter-total-variance-fitting-hero-2026.png</image:loc>
      <image:title>Gatheral Raw SVI Five-Parameter Total Variance Fitting on SPX Listed Options — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (SVI &amp; SABR Volatility Surface Calibration &amp; No-Arbitrage Conditions): Quasi-explicit ADC decomposition and 5-parameter hyperbolic total variance calibration on SPX options.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Quasi-Explicit%20Raw%20SVI%20Calibration%20Architecture%20%28ADC%20Method%29&amp;subtitle=Decoupling%20linear%20inner%20parameters%20%28a%2C%20d%2C%20c%29%20from%20nonlinear%20vertex%20coordinates%20%28m%2C%20sigma%29&amp;steps=1.%20Log-Moneyness%20Grid%3A%3ACompute%20k_i%20%3D%20ln%28K_i%20%2F%20F_T%29%20and%20market%20total%20variance%20w_mkt%20%3D%20IV%5E2%20*%20T%7C2.%20Change%20Variables%3A%3AMap%20y_i%20%3D%20%28k_i%20-%20m%29%20%2F%20sigma%20for%20candidate%20outer%20grid%20pair%20%28m%2C%20sigma%29%7C3.%20Convex%20QP%20Solve%3A%3ASolve%20linear%20least%20squares%20for%20%28a%2C%20d%3Db*rho*sigma%2C%20c%3Db*sigma%29%20under%20no-arb%20bounds%7C4.%20Nelder-Mead%20Polish%3A%3AOptimize%20outer%202D%20objective%20J%28m%2C%20sigma%29%20to%20sub-0.12%20vol%20convergence%20in%204%20ms&amp;metrics=INNER%20QP%20DIM%3A%3A3%20Linear%20Vars%3A%3AUnique%20Global%20Minimum%7COUTER%20SEARCH%3A%3A2D%20%28m%2C%20sigma%29%3A%3AEliminates%205D%20Local%20Traps%7CTYPICAL%20SPX%20RHO%3A%3A-0.71%3A%3A30-Day%20Index%20Skew%20Tilt%7CSOLVE%20SPEED%3A%3A3.8%20ms%3A%3A195-Strike%20OPRA%20Slice</image:loc>
      <image:title>Zeliade quasi-explicit two-stage raw SVI optimization pipeline for SPX option total variance slices</image:title>
      <image:caption>Gatheral Raw SVI Five-Parameter Total Variance Fitting on SPX Listed Options — Zeliade quasi-explicit two-stage raw SVI optimization pipeline for SPX option total variance slices (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Empirical%20SPX%20Raw%20SVI%20Parameter%20Term%20Scaling%20%28Q4%202026%29&amp;subtitle=Observed%20total-variance%20hyperbola%20coordinates%20across%20four%20liquid%20Cboe%20SPX%20expirations&amp;steps=7-DTE%20Weekly%3A%3ATight%20apex%20sigma%3D0.031%20and%20steep%20negative%20rho%3D-0.76%20capture%20crash%20gamma%20demand%7C30-DTE%20Monthly%3A%3ABenchmark%20VIX%20horizon%20with%20b%3D0.044%2C%20m%3D%2B0.018%2C%20and%200.11%20vol%20point%20fit%20RMSE%7C90-DTE%20Quarterly%3A%3ABroader%20vertex%20sigma%3D0.112%20as%20institutional%20collar%20rolls%20anchor%2095%25-105%25%20strikes%7C365-DTE%20LEAPS%3A%3AFlatter%20hyperbolic%20angle%20b%3D0.089%20over%20T%3D1.0%20yr%20with%20persistent%20-0.68%20long%20skew&amp;metrics=7D%20APEX%20SIGMA%3A%3A0.031%3A%3ASharp%20Near-Expiry%20Curvature%7C30D%20WING%20SLOPE%20b%3A%3A0.044%3A%3ALee%20Ratio%200.076%20of%202.0%20Max%7C90D%20VERTEX%20m%3A%3A%2B0.029%3A%3A2.9%25%20OTM%20Call%20Minimum%7C365D%20FIT%20RMSE%3A%3A0.16%20vol%3A%3AAcross%2060%25-140%25%20Moneyness</image:loc>
      <image:title>Calibrated Gatheral raw SVI parameters across 7D 30D 90D and 365D SPX listed option expirations</image:title>
      <image:caption>Gatheral Raw SVI Five-Parameter Total Variance Fitting on SPX Listed Options — Calibrated Gatheral raw SVI parameters across 7D 30D 90D and 365D SPX listed option expirations (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/cboe-profits-why-the-stock-jumped-10-this-month</loc>
    <lastmod>2026-11-14T19:34:02.978Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/wall-street-panics-cboe-profits-why-the-stock-jumped-10-this-month-yahoo-136f3ff6.jpg</image:loc>
      <image:title>A graph showing a sharp increase in stock prices, with a 10% jump this month, amidst panic on Wall Street.</image:title>
      <image:caption>The stock jumped 10% this month, despite panic on Wall Street, with Cboe profits contributing to the surge.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/magp-etf-price-chart-cboe-magp-tradingview</loc>
    <lastmod>2026-11-14T16:48:40.752Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/magp-etf-price-and-chart-cboe-magp-tradingview-817c32c7.jpg</image:loc>
      <image:title>A line graph showing the price fluctuations of the MAGP ETF over time, with a focus on its performance on the Cboe exchange.</image:title>
      <image:caption>The MAGP ETF has experienced significant price fluctuations on the Cboe exchange, with investors closely monitoring its performance.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/natural-svi-jump-wings-jw-trader-parameter-mapping</loc>
    <lastmod>2026-11-14T20:53:31.837Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/natural-svi-jump-wings-jw-trader-parameter-mapping-hero-2026.png</image:loc>
      <image:title>Natural SVI and SVI-Jump-Wings Parameter Mapping for Equity Options Desks — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (SVI &amp; SABR Volatility Surface Calibration &amp; No-Arbitrage Conditions): Trader-native ATM variance, skew, and jump-wing slope coordinates mapped bijectively to raw SVI.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Bijective%20Coordinate%20Mapping%3A%20Raw%20SVI%20%3C-%3E%20Natural%20SVI%20%3C-%3E%20SVI-JW&amp;subtitle=Exact%20algebraic%20transformations%20enabling%20human-interpretable%20skew%20and%20wing%20marking&amp;steps=Raw%20SVI%20Fit%3A%3AOptimizer%20calibrates%20%28a%2C%20b%2C%20rho%2C%20m%2C%20sigma%29%20on%20European%20total%20variance%20w%28k%29%7CATM%20Anchor%20w_t%3A%3AEvaluate%20w_t%20%3D%20w%280%29%20%3D%20v_t%20*%20T%20to%20normalize%20variance-time%20scaling%7CSVI-JW%20Projection%3A%3AExtract%20ATM%20vol%20sqrt%28v_t%29%2C%20ATM%20skew%20psi_t%2C%20left%20slope%20p_t%2C%20right%20slope%20c_t%2C%20min%20var%20v_tilde%7CTrader%20Bump%20%26%20Invert%3A%3ADesk%20bumps%20c_t%20or%20psi_t%3B%20closed-form%20inverse%20recovers%20exact%20raw%20SVI%20without%20refitting&amp;metrics=ATM%20VAR%20v_t%3A%3Aw%280%29%20%2F%20T%3A%3AAnnualized%20ATM%20Variance%7CATM%20SKEW%20psi_t%3A%3Adw%2Fdk%280%29%2Fsqrt%28w_t%29%3A%3ANormalized%20Skew%20Slope%7CPUT%20WING%20p_t%3A%3Ab%281-rho%29%2Fsqrt%28w_t%29%3A%3ADownside%20Kurtosis%20Slope%7CCALL%20WING%20c_t%3A%3Ab%281%2Brho%29%2Fsqrt%28w_t%29%3A%3AUpside%20Call%20Wing%20Slope</image:loc>
      <image:title>Bijective transformation diagram between Raw SVI Natural SVI and SVI-Jump-Wings trader coordinates</image:title>
      <image:caption>Natural SVI and SVI-Jump-Wings Parameter Mapping for Equity Options Desks — Bijective transformation diagram between Raw SVI Natural SVI and SVI-Jump-Wings trader coordinates (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Cross-Sectional%20SVI-JW%20Smile%20Signatures%20Across%20Equity%20Regimes&amp;subtitle=Normalized%2030-day%20SVI-JW%20coordinates%20illustrating%20index%20crash%20skew%20vs%20single-stock%20call%20wings&amp;steps=SPX%20Index%3A%3AExtreme%20put%20wing%20p_t%3D1.48%20vs%20flat%20call%20wing%20c_t%3D0.22%20driven%20by%20institutional%20hedging%7CNDX%20Tech%20Index%3A%3AHigher%20ATM%20vol%20%2824.5%25%29%20with%20elevated%20call%20wing%20c_t%3D0.36%20from%20AI%20upside%20call%20buying%7CMega-Cap%20Single%20Stock%3A%3AModerate%20skew%20psi_t%3D-0.26%20with%20balanced%20call%20wing%20c_t%3D0.55%20into%20quarterly%20earnings%7CBiotech%20Event%20Name%3A%3ASymmetric%20U-smile%20%28psi_t%3D-0.04%2C%20p_t%3D1.15%2C%20c_t%3D1.12%29%20ahead%20of%20binary%20FDA%20readout&amp;metrics=SPX%20PUT%2FCALL%20RATIO%3A%3A6.7x%20%28p_t%2Fc_t%29%3A%3ASteep%20Left%20Crash%20Skew%7CMEGA-CAP%20SKEW%20psi%3A%3A-0.26%3A%3ABalanced%20Two-Sided%20Flow%7CBIOTECH%20SYMMETRY%3A%3Ap_t%20~%20c_t%20~%201.1%3A%3ABimodal%20Event%20Kurtosis%7CJW%20BUMP%20LATENCY%3A%3A0.04%20ms%3A%3AClosed-Form%20Inverse%20Map</image:loc>
      <image:title>SVI-Jump-Wings parameter comparison across SPX Index Nasdaq-100 Mega-Cap Tech and Biotech Equity Options</image:title>
      <image:caption>Natural SVI and SVI-Jump-Wings Parameter Mapping for Equity Options Desks — SVI-Jump-Wings parameter comparison across SPX Index Nasdaq-100 Mega-Cap Tech and Biotech Equity Options (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vix-spike-complacencys-bill-coming-due</loc>
    <lastmod>2026-11-14T16:39:11.209Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vix-spike-complacency-s-bill-coming-due-what-happens-now-real-investment-69bc1fbb.jpg</image:loc>
      <image:title>A graph showing a sharp increase in the VIX index, indicating heightened market volatility.</image:title>
      <image:caption>The VIX index has spiked, signaling increased market volatility. What happens next, and how should investors prepare?</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/bobby-jain-millennium-partnership-hedge-fund-future</loc>
    <lastmod>2026-11-14T16:28:50.368Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/bobby-jain-discusses-millennium-partnership-and-hedge-fund-future-nishan-bb0ef9cf.jpg</image:loc>
      <image:title>A person in a business setting discussing a partnership with a hedge fund, with a focus on the future of the industry.</image:title>
      <image:caption>Industry leaders Bobby Jain and Nishant Kumar weigh in on the future of hedge funds and the impact of partnerships like Millennium&apos;s.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/andy-burnham-stop-thames-water-us-hedge-fund-takeover</loc>
    <lastmod>2026-11-14T16:19:38.849Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/andy-burnham-stop-the-us-hedge-fund-takeover-of-thames-water-we-own-it-89d9917c.jpg</image:loc>
      <image:title>Editorial financial chart and market structure illustration representing Andy Burnham, stop the US hedge fund takeover of Thames Water - We Own It (Andy Burnham, Thames Water, We Own It)</image:title>
      <image:caption>VolSurface Desk editorial visual: Andy Burnham, stop the US hedge fund takeover of Thames Water - We Own It (Andy Burnham, Thames Water, We Own It).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/ssvi-surface-stochastic-volatility-power-law-kernel</loc>
    <lastmod>2026-11-14T20:57:22.488Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/ssvi-surface-stochastic-volatility-power-law-kernel-hero-2026.png</image:loc>
      <image:title>Surface SVI Power-Law Kernel Calibration Across Multi-Expiry Index Options — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (SVI &amp; SABR Volatility Surface Calibration &amp; No-Arbitrage Conditions): Global multi-tenor volatility surface coupling via ATM total variance theta_t and modified power-law kernels.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Global%20Power-Law%20SSVI%20Surface%20Calibration%20Pipeline&amp;subtitle=Coupling%2022%20index%20option%20expirations%20through%20monotonic%20ATM%20variance%20theta_t%20and%20kernel%20phi%28theta%29&amp;steps=1.%20Monotone%20Theta_t%3A%3AExtract%20ATM%20total%20variance%20theta_t%20across%20expiries%20via%20monotone%20PCHIP%20spline%20%28dtheta%2Fdt%20%3E%3D%200%29%7C2.%20Kernel%20Choice%3A%3ASelect%20modified%20power-law%20phi%28theta%29%20%3D%20eta%20%2F%20%5Btheta%5Egamma%20*%20%281%20%2B%20theta%29%5E%281-gamma%29%5D%7C3.%203-Param%20Global%20Fit%3A%3AOptimize%20%28rho%2C%20eta%2C%20gamma%29%20jointly%20across%203%2C400%20OTM%20option%20mid-quotes%7C4.%20Theorem%204.1%20%26%204.2%3A%3AVerify%20eta*%281%2B%20rho%20%29%20%3C%3D%202%20to%20lock%20in%20global%20butterfly%20and%20calendar%20positivity&amp;metrics=GLOBAL%20PARAMS%3A%3A3%20%28rho%2C%20eta%2C%20gamma%29%3A%3APlus%20Monotone%20theta_t%20Curve%7CSPX%20GAMMA%20EXP%3A%3A0.44%20-%200.49%3A%3ANear%20Rough%20Limit%200.50%7CCALENDAR%20VIOLATIONS%3A%3A0%20Strikes%3A%3AGuaranteed%20by%20Theorem%204.1%7CSURFACE%20RMSE%3A%3A0.26%20vol%3A%3AAcross%201D%20to%202Y%20Tenors</image:loc>
      <image:title>Two-step global SSVI power-law surface calibration pipeline from ATM total variance curve to no-arbitrage theorem checks</image:title>
      <image:caption>Surface SVI Power-Law Kernel Calibration Across Multi-Expiry Index Options — Two-step global SSVI power-law surface calibration pipeline from ATM total variance curve to no-arbitrage theorem checks (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
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      <image:title>ATM volatility skew decay comparison between Heston-like SSVI Power-Law SSVI and Extended eSSVI across tenors</image:title>
      <image:caption>Surface SVI Power-Law Kernel Calibration Across Multi-Expiry Index Options — ATM volatility skew decay comparison between Heston-like SSVI Power-Law SSVI and Extended eSSVI across tenors (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/durrleman-condition-butterfly-arbitrage-density-positivity</loc>
    <lastmod>2026-11-14T21:48:18.618Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/durrleman-condition-butterfly-arbitrage-density-positivity-hero-2026.png</image:loc>
      <image:title>Durrleman g(k) Density Condition: Eliminating Butterfly Arbitrage in Wing Strikes — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (SVI &amp; SABR Volatility Surface Calibration &amp; No-Arbitrage Conditions): Analytical g(k) &gt;= 0 butterfly positivity diagnostics and Dupire denominator protection.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Anatomy%20of%20the%20Durrleman%20Butterfly%20Function%20g%28k%29&amp;subtitle=How%20steep%20skew%20w&apos;%28k%29%20fights%20minimum%20variance%20w%28k%29%20and%20smile%20curvature%20w&apos;&apos;%28k%29&amp;steps=Term%201%20%20Skew%20Drag%3A%3A%5B1%20-%20k*w&apos;%28k%29%2F%282*w%28k%29%29%5D%5E2%20stays%20%3E%3D%200%20but%20shrinks%20when%20k%20and%20w&apos;%28k%29%20share%20the%20same%20sign%7CTerm%202%20%20Negative%20Pull%3A%3A-%28w&apos;%28k%29%5E2%20%2F%204%29*%281%2Fw%28k%29%20%2B%201%2F4%29%20is%20strictly%20non-positive%20and%20spikes%20when%20w%28k%29%20is%20tiny%7CTerm%203%20%20Convexity%20Lift%3A%3A%2Bw&apos;&apos;%28k%29%20%2F%202%20adds%20positive%20smile%20curvature%20to%20rescue%20density%20near%20the%20vertex%7CPenalty%20Injection%3A%3AAdd%20lambda%20*%20integral%28max%280%2C%20eps%20-%20g%28k%29%29%5E2%20dk%29%20across%20%5B-5*sqrt%28w%29%2C%20%2B3*sqrt%28w%29%5D%20mesh&amp;metrics=DENSITY%20IDENTITY%3A%3Aq%28K%29%20prop.%20g%28k%29%3A%3AExact%20BSM%20Second%20Derivative%7CFAILURE%20ZONE%3A%3Ak%20in%20%5B-3%25%2C%20%2B1%25%5D%3A%3AShort-Tenor%20Steep%20Skew%20Dent%7CMESH%20DENSITY%3A%3A201%20Chebyshev%20Pts%3A%3ACovers%200.1d%20to%2099.9d%20Wings%7CTOLERANCE%20BUFFER%3A%3Ag%28k%29%20%3E%3D%20%2B0.010%3A%3APDE%20Denominator%20Cushion</image:loc>
      <image:title>Analytical decomposition of Durrleman g(k) butterfly density function into three competing variance terms</image:title>
      <image:caption>Durrleman g(k) Density Condition: Eliminating Butterfly Arbitrage in Wing Strikes — Analytical decomposition of Durrleman g(k) butterfly density function into three competing variance terms (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Minimum%20Durrleman%20g%28k%29%20Across%20Short-Dated%20Volatility%20Regimes&amp;subtitle=Impact%20of%20exact%20L2%20penalty%20and%20Gatheral-Jacquier%20bounds%20on%20201-node%20Chebyshev%20strike%20meshes&amp;steps=Unconstrained%20OLS%3A%3AProduces%20min%20g%28k%29%20%3D%20-0.31%20on%205-DTE%20CPI%20week%20chains%20due%20to%20aggressive%20wing%20overfitting%7CBid-Ask%20Clamped%3A%3AReduces%20violations%20but%20still%20allows%20min%20g%28k%29%20%3D%20-0.04%20near%20sharp%20inflection%20strikes%7CChebyshev%20L2%20Penalty%3A%3AEnforces%20g%28k%29%20%3E%3D%20%2B0.010%20across%20%5B-6%20sigma%2C%20%2B4%20sigma%5D%20with%20%2B0.03%20vol%20RMSE%20cost%7CGlobal%20SSVI%20Bound%3A%3AAnalytically%20guarantees%20g%28k%29%20%3E%20%2B0.12%20everywhere%20when%20eta*%281%2B%20rho%20%29%20%3C%3D%202&amp;metrics=RAW%20OLS%20MIN%20g%28k%29%3A%3A-0.306%3A%3ACrashes%20Dupire%20PDE%20Solver%7CPENALIZED%20MIN%20g%28k%29%3A%3A%2B0.012%3A%3ASafe%20Positive%20Density%20Floor%7CLOCAL%20VOL%20CAP%3A%3A%3C%20145%25%3A%3ABounded%20Denom%201%2Fg%28k%29%7CEXTRA%20RMSE%20COST%3A%3A%2B0.03%20vol%3A%3AWell%20Inside%20OPRA%20Bid-Ask</image:loc>
      <image:title>Minimum Durrleman g(k) values across four SVI calibration regimes before and after butterfly penalty regularization</image:title>
      <image:caption>Durrleman g(k) Density Condition: Eliminating Butterfly Arbitrage in Wing Strikes — Minimum Durrleman g(k) values across four SVI calibration regimes before and after butterfly penalty regularization (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/calendar-spread-arbitrage-total-variance-monotonicity</loc>
    <lastmod>2026-11-14T19:47:14.707Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/calendar-spread-arbitrage-total-variance-monotonicity-hero-2026.png</image:loc>
      <image:title>Calendar Spread Arbitrage Bounds and Total Implied Variance Monotonicity — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (SVI &amp; SABR Volatility Surface Calibration &amp; No-Arbitrage Conditions): Forward-moneyness total variance bounds, quartic SVI intersection tests, and event-vol floors.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Exact%20SVI%20Slice-Intersection%20%26%20Calendar%20Arbitrage%20Audit&amp;subtitle=Verifying%20w%28k%2C%20T_2%29%20-%20w%28k%2C%20T_1%29%20%3E%3D%200%20from%20ATM%20event%20jumps%20out%20to%20asymptotic%20Roger%20Lee%20slopes&amp;steps=1.%20Forward%20Align%3A%3ATransform%20strikes%20into%20forward%20log-moneyness%20k%20%3D%20ln%28K%20%2F%20F_T%29%20via%20box-implied%20carry%7C2.%20Wing%20Slope%20Check%3A%3ARequire%20left%20%26%20right%20slopes%20of%20T_2%20%3E%3D%20slopes%20of%20T_1%3A%20b_2%281%2B-rho_2%29%20%3E%3D%20b_1%281%2B-rho_1%29%7C3.%20Quartic%20Root%20Test%3A%3ASolve%204th-degree%20polynomial%20w_2%28k%29%20%3D%20w_1%28k%29%20for%20any%20real%20intersection%20roots%20k*%7C4.%20Spline%20Repair%3A%3AProject%20crossed%20slice%20onto%20monotone%20cone%20w_2%28k%29%20%3E%3D%20w_1%28k%29%20%2B%20delta_var_floor&amp;metrics=EVENT%20IV%20RATIO%3A%3A28.5%25%20vs%2017.2%25%3A%3A2D%20vs%209D%20Valid%20Backwardation%7CTOTAL%20VAR%20STEP%3A%3A6.45%20-%3E%2010.57%20bps%3A%3Adw%20%3E%200%20Preserves%20No-Arb%7CQUARTIC%20ROOTS%3A%3A0%20Real%20Roots%3A%3AExact%20Hyperbola%20Non-Crossing%7CMIN%20FORWARD%20VAR%3A%3A%3E%3D%206.5%25%20Ann.%3A%3ANon-Holiday%20Inter-Slice%20Floor</image:loc>
      <image:title>Horizontal calendar spread arbitrage test workflow comparing adjacent SVI hyperbolas and polynomial intersection roots</image:title>
      <image:caption>Calendar Spread Arbitrage Bounds and Total Implied Variance Monotonicity — Horizontal calendar spread arbitrage test workflow comparing adjacent SVI hyperbolas and polynomial intersection roots (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=SPX%20Total%20Variance%20Ladder%20Across%20Macro%20Event%20Expirations&amp;subtitle=Backwardated%20annualized%20IV%20coexisting%20cleanly%20with%20strictly%20rising%20cumulative%20total%20variance&amp;steps=2-DTE%20Post-CPI%3A%3A28.5%25%20IV%20reflects%20concentrated%20CPI%20jump%20variance%3B%20cumulative%20w%20%3D%206.45%20bps%7C5-DTE%20Weekly%3A%3AIV%20compresses%20to%2020.4%25%20as%20quiet%20post-CPI%20sessions%20dilute%20average%20variance%3B%20w%20%3D%208.26%20bps%7C9-DTE%20VIX9D%3A%3AIV%20prints%2017.2%25%20while%20cumulative%20w%20climbs%20to%2010.57%20bps%20%2812.18%25%20forward%20diffusion%20vol%29%7C30-DTE%20Monthly%3A%3ABenchmark%20VIX%20slice%20at%2016.4%25%20IV%20with%20cumulative%20w%20%3D%2032.02%20bps%20and%20steeper%20wing%20b_4&amp;metrics=2D-%3E9D%20IV%20DROP%3A%3A-11.30%20vol%3A%3ASteep%20Term%20Backwardation%7C2D-%3E9D%20VAR%20GAIN%3A%3A%2B4.12%20bps%3A%3AStrictly%20Monotone%20dw%2FdT%20%3E%200%7CDIFFUSION%20FLOOR%3A%3A12.18%25%20IV%3A%3APost-Event%20Forward%20Vol%7CARBITRAGE%20BOUND%3A%3AIV_9D%20%3E%3D%2013.44%25%3A%3AZero-Variance%20Breakeven</image:loc>
      <image:title>Forward implied volatility vs total variance progression across CPI FOMC and quarterly OPEX calendar tenors</image:title>
      <image:caption>Calendar Spread Arbitrage Bounds and Total Implied Variance Monotonicity — Forward implied volatility vs total variance progression across CPI FOMC and quarterly OPEX calendar tenors (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/roger-lee-moment-formula-asymptotic-wing-slope-caps</loc>
    <lastmod>2026-11-14T20:53:01.778Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/roger-lee-moment-formula-asymptotic-wing-slope-caps-hero-2026.png</image:loc>
      <image:title>Roger Lee Moment Formula: Asymptotic Implied Volatility Wing Slope Caps — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (SVI &amp; SABR Volatility Surface Calibration &amp; No-Arbitrage Conditions): Model-free asymptotic total variance slope caps (beta &lt;= 2) and critical tail moment bijections.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=From%20Martingale%20Moment%20Explosion%20to%20Wing%20Extrapolation%20Policy&amp;subtitle=How%20finite%20moments%20E%5BS%5E%281%2Bp%29%5D%20and%20E%5BS%5E%28-q%29%5D%20constrain%20asymptotic%20smile%20slopes%20on%20derivatives%20desks&amp;steps=1.%20SDE%20Moment%20Explosion%3A%3AHeston%2C%20Bates%2C%20or%20Barndorff-Nielsen%20SDEs%20exhibit%20finite%20critical%20moments%20p_tilde%2C%20q_tilde%7C2.%20Lee%20Slope%20Mapping%3A%3AFinite%20moments%20force%20w%28k%29%20~%20beta_L*%20k%20%20%28left%29%20and%20beta_R*k%20%28right%29%20with%20beta%20%3C%202%7C3.%20SVI%20Wing%20Enforcement%3A%3AClamp%20b*%281%20-%20rho%29%20%3C%3D%202%20-%20eps%20and%20b*%281%20%2B%20rho%29%20%3C%3D%202%20-%20eps%20inside%20SVI%2FSSVI%20solvers%7C4.%20Log-Strip%20Integrability%3A%3AEnsure%20q_tilde%20%3E%200%20%28beta_L%20%3C%202%29%20so%20E%5Bln%20S_T%5D%20and%20VIX%20variance%20strips%20remain%20finite&amp;metrics=ABSOLUTE%20CEILING%3A%3Abeta_L%2C%20R%20%3C%3D%202.0%3A%3AUniversal%20No-Arbitrage%20Cap%7CVARIANCE%20SWAP%20REQ%3A%3Abeta_L%20%3C%202.0%3A%3AFinite%20Log-Contract%20E%5B-ln%20S%5D%7CSECOND%20MOMENT%20E%5BS%5E2%5D%3A%3Abeta_R%20%3C%3D%200.343%3A%3ASince%20p_tilde%20%3E%3D%201%20Threshold%7CSPX%2030D%20beta_L%3A%3A0.076%3A%3AImplies%20q_tilde%20%3D%206.10%20Tail</image:loc>
      <image:title>Causal chain from stochastic volatility moment explosions to Roger Lee linear total variance slopes and variance swap caps</image:title>
      <image:caption>Roger Lee Moment Formula: Asymptotic Implied Volatility Wing Slope Caps — Causal chain from stochastic volatility moment explosions to Roger Lee linear total variance slopes and variance swap caps (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Empirical%20Asymptotic%20Wing%20Slopes%20vs%20Lee%20Theoretical%20Thresholds&amp;subtitle=Comparing%20calibrated%2030-day%20total%20variance%20slopes%20against%20E%5BS%5E2%5D%20%3D%20inf%20%280.343%29%20and%20Arbitrage%20%282.000%29%20ceilings&amp;steps=SPX%20Left%20Wing%20%28beta_L%29%3A%3ACalibrates%20at%200.076%20%28q_tilde%20%3D%206.10%29%2C%20well%20below%20log-contract%20divergence%20ceiling%202.0%7CSPX%20Right%20Wing%20%28beta_R%29%3A%3ACalibrates%20at%200.012%20%28p_tilde%20%3D%2040.7%29%2C%20confirming%20thin%20index%20upside%20jump%20density%7CVIX%20Call%20Wing%20%28beta_R%29%3A%3AReaches%200.42-0.58%20on%20OTM%20VIX%20calls%20%28p_tilde%20%3C%201%29%2C%20signaling%20infinite%20E%5BVIX_T%5E2%5D%20tail%20kurtosis%7CNaive%20Quadratic%20Poly%3A%3AAsymptotic%20w%28k%29%2F%20k%20%20-%3E%20infinity%2C%20violating%20Lee%20ceiling%202.0%20and%20creating%20static%20wing%20arb&amp;metrics=GAUSSIAN%20LIMIT%3A%3Abeta%20%3D%200.000%3A%3AAll%20Moments%20Finite%7CFINITE%20E%5BS%5E2%5D%20CAP%3A%3Abeta_R%20%3D%200.343%3A%3A6%20-%204*sqrt%282%29%20Threshold%7CVIX%20OTM%20CALLS%3A%3Abeta_R%20~%200.48%3A%3AHeavy%20Right-Tail%20Convexity%7CHARD%20ARB%20WALL%3A%3Abeta%20%3D%202.000%3A%3AMax%20Martingale%20Slope</image:loc>
      <image:title>Asymptotic Roger Lee wing slopes beta_L and beta_R across SPX VIX Calls Crypto Options and Black-Scholes</image:title>
      <image:caption>Roger Lee Moment Formula: Asymptotic Implied Volatility Wing Slope Caps — Asymptotic Roger Lee wing slopes beta_L and beta_R across SPX VIX Calls Crypto Options and Black-Scholes (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/hagan-sabr-lognormal-vs-normal-bachelier-swaption-vols</loc>
    <lastmod>2026-11-14T19:46:29.256Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/hagan-sabr-lognormal-vs-normal-bachelier-swaption-vols-hero-2026.png</image:loc>
      <image:title>Hagan SABR Lognormal Versus Normal Bachelier Volatility on CME SOFR Swaptions — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (SVI &amp; SABR Volatility Surface Calibration &amp; No-Arbitrage Conditions): Normal Bachelier bps vs Black-76 lognormal SABR calibration across CME SOFR swaption matrices.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=CME%20SOFR%20Swaption%20Cube%20SABR%20Calibration%20%26%20Bachelier%20Workflow&amp;subtitle=Mapping%20ATM%20normal%20bps%20straddles%20and%20%2B-200%20bps%20receiver%2Fpayer%20wings%20into%20%28alpha%2C%20beta%2C%20rho%2C%20nu%29&amp;steps=1.%20Fix%20Backbone%20beta%3A%3ADesk%20fixes%20beta%20%3D%200.0%20%28pure%20normal%29%20or%20beta%20%3D%200.5%20from%20historical%20d%28sigma_N%29%2FdF%20regression%7C2.%20Cubic%20Alpha%20Root%3A%3AInvert%20ATM%20normal%20vol%20sigma_N%28F%2CF%29%20to%20solve%20alpha%20exactly%20for%20candidate%20%28rho%2C%20nu%29%7C3.%20Wing%20Skew%20%26%20Smile%3A%3AFit%20rho%20to%20-100%2F%2B100%20bps%20receiver-payer%20skew%20and%20nu%20to%20%2B-200%20bps%20butterfly%20curvature%7C4.%20Bachelier%20%2F%20Black%20Map%3A%3APrice%20payer%2Freceiver%20swaptions%20via%20Bachelier%20formula%20and%20audit%20low-strike%20density&amp;metrics=1Y10Y%20ATM%20VOL%3A%3A98.5%20bps%2Fyr%3A%3ACME%20%2F%20ICAP%20Normal%20Benchmark%7CAPPROX%20RATIO%3A%3Asigma_N%20~%20F*sigma_B%3A%3AAt-The-Money%20First-Order%20Link%7CTYPICAL%20SOFR%20NU%3A%3A0.42%20-%200.58%3A%3ARates%20Vol-of-Vol%20Smile%7CFIT%20TOLERANCE%3A%3A%3C%3D%200.35%20bps%3A%3AAcross%20-200%20to%20%2B200%20bps%20Grid</image:loc>
      <image:title>Hagan SABR calibration and conversion pipeline between ICAP/CME Bachelier bps quotes and Black-76 lognormal vols</image:title>
      <image:caption>Hagan SABR Lognormal Versus Normal Bachelier Volatility on CME SOFR Swaptions — Hagan SABR calibration and conversion pipeline between ICAP/CME Bachelier bps quotes and Black-76 lognormal vols (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=1Y10Y%20USD%20SOFR%20Swaption%20Normal%20Volatility%20Smile%20%28bps%2Fyr%29&amp;subtitle=Comparing%20Normal%20SABR%20%28beta%3D0%29%2C%20CIR%20SABR%20%28beta%3D0.5%29%2C%20and%20Lognormal%20SABR%20%28beta%3D1%29%20across%20strikes&amp;steps=-200%20bps%20Receiver%20%281.8%25%29%3A%3ANormal%20SABR%20prints%20104.2%20bps%3B%20Lognormal%20beta%3D1%20over-steepens%20low-rate%20receiver%20wing%7C-100%20bps%20Receiver%20%282.8%25%29%3A%3ATight%200.20%20bps%20convergence%20across%20all%20three%20beta%20backbones%20when%20rho%20adjusts%7CATM%20Forward%20%283.80%25%29%3A%3AAnchored%20at%2098.5%20bps%2Fyr%20%28~6.20%20bps%2Fday%20breakeven%20swap%20rate%20move%29%7C%2B200%20bps%20Payer%20%285.8%25%29%3A%3APositive%20rate-vol%20correlation%20%28%2B0.12%29%20lifts%20OTM%20payer%20protection%20to%20112.4%20bps&amp;metrics=DAILY%20BREAKEVEN%3A%3A6.20%20bps%2Fday%3A%3A98.5%20bps%20%2F%20sqrt%28252%29%7CPAYER%20WING%20%2B200%3A%3A112.4%20bps%3A%3AInflation%20Tail%20Demand%7CBARTLETT%20DELTA%20ADJ%3A%3A%2B6.4%25%20Delta%3A%3ACorrelation%20Vanna%20Term%7CSTANDARDS%20LINK%3A%3ASOFR-SRO-2026%3A%3ACME%20%2F%20ICAP%20Matrix</image:loc>
      <image:title>CME SOFR swaption normal bps volatility smile across -200 bps receiver to +200 bps payer strikes</image:title>
      <image:caption>Hagan SABR Lognormal Versus Normal Bachelier Volatility on CME SOFR Swaptions — CME SOFR swaption normal bps volatility smile across -200 bps receiver to +200 bps payer strikes (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/shifted-sabr-negative-rate-floor-calibration-stability</loc>
    <lastmod>2026-11-14T19:46:35.820Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/shifted-sabr-negative-rate-floor-calibration-stability-hero-2026.png</image:loc>
      <image:title>Shifted SABR Displacement Calibration for Low-Strike Interest Rate Derivatives — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (SVI &amp; SABR Volatility Surface Calibration &amp; No-Arbitrage Conditions): Displaced (F+s, K+s) CEV calibration for zero and negative interest rate floors across SOFR and EURIBOR.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Shifted%20SABR%20Cube%20Governance%20%26%20Recentering%20Protocol&amp;subtitle=Maintaining%20stable%20CEV%20beta%3D0.5%20smile%20dynamics%20across%20-0.50%25%20floors%20to%20%2B6.00%25%20payer%20caps&amp;steps=1.%20Clearing%20Shift%20Table%3A%3ALock%20currency%20shift%20s_ccy%20per%20LCH%2FCME%20convention%20%28e.g.%20s%20%3D%203.00%25%20USD%2FEUR%2C%201.50%25%20JPY%29%7C2.%20Displaced%20Mapping%3A%3AMap%20F*%20%3D%20F%20%2B%20s%20and%20K*%20%3D%20K%20%2B%20s%20so%20all%20strikes%20K%20%3E%20-s%20remain%20strictly%20positive%7C3.%20Shifted%20Hagan%20Fit%3A%3ACalibrate%20%28alpha_s%2C%20rho%2C%20nu%29%20with%20beta%20%3D%200.5%20against%20Bachelier%20bps%20market%20quotes%7C4.%20Shift-Change%20Recal%3A%3AIf%20clearinghouse%20widens%20s%20-%3E%20s_new%2C%20transform%20alpha_new%20%3D%20alpha%20*%20%5B%28F%2Bs%29%2F%28F%2Bs_new%29%5D%5Ebeta&amp;metrics=USD%20%2F%20EUR%20SHIFT%20s%3A%3A3.00%25%20%28300%20bps%29%3A%3ASupports%20Strikes%20Down%20to%20-2.75%25%7CBACKBONE%20BETA%3A%3Abeta%20%3D%200.50%3A%3ADisplaced%20CIR%20Scaling%7C0%25%20FLOOR%20SPREAD%3A%3A%3C%200.25%20bps%3A%3AFit%20Error%20on%20Deep%20OTM%20Floors%7CGREEK%20INVARIANCE%3A%3AExact%20ATM%20Match%3A%3AVia%20Alpha-Rho%20Rescaling</image:loc>
      <image:title>Shifted SABR calibration and shift-recentering governance workflow for interest rate cap and swaption cubes</image:title>
      <image:caption>Shifted SABR Displacement Calibration for Low-Strike Interest Rate Derivatives — Shifted SABR calibration and shift-recentering governance workflow for interest rate cap and swaption cubes (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Rate-Cycle%20Backbone%20Tracking%20Error%20%282022-2026%20SOFR%20Regime%20Shift%29&amp;subtitle=Comparing%20unhedged%20daily%20ATM%20vol%20drift%20across%20fixed-parameter%20SABR%20backbones&amp;steps=Shifted%20SABR%20%28beta%3D0.5%2C%20s%3D3%25%29%3A%3ATracks%20empirical%20sqrt%28F%20%2B%203%25%29%20rate-vol%20elasticity%20with%204.1%20bps%20quarterly%20residual%7CPure%20Normal%20%28beta%3D0%29%3A%3AUnder-predicts%20normal%20vol%20expansion%20during%20rate%20hikes%20by%2018.6%20bps%20without%20manual%20alpha%20resets%7CShifted%20Lognormal%20%28beta%3D1%2C%20s%3D3%25%29%3A%3AOver-steepens%20negative%20skew%20at%200%25%20floors%20unless%20rho%20is%20pushed%20aggressively%20positive%7CUnshifted%20CEV%20%28s%3D0%29%3A%3ACrashes%20at%20K%20%3C%3D%200%25%20receiver%20strikes%20and%20produces%20infinite%20vega%20near%20F%20-%3E%200&amp;metrics=BACKBONE%20R-SQUARED%3A%3A0.89%3A%3AShifted%20beta%3D0.5%20on%20SOFR%7CFLOOR%20STRIKE%20DOMAIN%3A%3AK%20%3E%20-300%20bps%3A%3AWith%20Standard%20s%20%3D%203.00%25%7CHEDGE%20SLIPPAGE%20CUT%3A%3A-61%25%3A%3AVs%20Unadjusted%20beta%3D0%7CBENCHMARK%20ENTITY%3A%3ACME-SOFR-SRO%3A%3AVerified%20Swaption%20Matrix</image:loc>
      <image:title>Backbone delta hedging slippage comparison across Shifted SABR beta=0.5 Normal SABR beta=0 and Lognormal beta=1</image:title>
      <image:caption>Shifted SABR Displacement Calibration for Low-Strike Interest Rate Derivatives — Backbone delta hedging slippage comparison across Shifted SABR beta=0.5 Normal SABR beta=0 and Lognormal beta=1 (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/sabr-low-strike-density-breakdown-antonov-free-boundary</loc>
    <lastmod>2026-11-14T19:49:21.983Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/sabr-low-strike-density-breakdown-antonov-free-boundary-hero-2026.png</image:loc>
      <image:title>Fixing Hagan SABR Low-Strike Negative Density via Free-Boundary Approximations — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (SVI &amp; SABR Volatility Surface Calibration &amp; No-Arbitrage Conditions): Eliminating long-dated WKB negative density artifacts via Antonov Free-Boundary and Hagan 1D PDEs.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Eliminating%20SABR%20Low-Strike%20Butterfly%20Arbitrage%20in%20Production&amp;subtitle=Three%20institutional%20upgrades%20replacing%202002%20first-order%20WKB%20expansions%20on%20long-dated%20swaption%20cubes&amp;steps=1.%20Audit%20nu%5E2%20*%20T%3A%3AFlag%20any%20swaption%20expiry%20slice%20where%20expansion%20parameter%20nu%5E2%20*%20T%20exceeds%200.20%7C2.%20Zero-Correlation%20Kernel%3A%3AAntonov%20et%20al.%20%282015%29%20integrate%20exact%202D%20hyperbolic%20McKean%20heat%20kernel%20for%20rho%20%3D%200%7C3.%20Correlation%20Mapping%3A%3AProject%20general%20rho%20!%3D%200%20SABR%20onto%20effective%20zero-correlation%20mimic%20parameters%7C4.%20Hagan%201D%20PDE%20Alternative%3A%3AOr%20solve%20Hagan%20%282014%29%201D%20effective%20forward%20Kolmogorov%20PDE%20on%20150%20grid%20nodes%20in%200.8%20ms&amp;metrics=BREAKDOWN%20TRIGGER%3A%3Anu%5E2%20*%20T%20%3E%200.25%3A%3AE.g.%20T%3D5Y%2C%20nu%3D0.40%20%3D%3E%200.80%7CHAGAN%202002%20MIN%20PDF%3A%3A-0.184%3A%3A10Y10Y%20Strike%20K%20%3D%200.65%25%7CANTONOV%20MIN%20PDF%3A%3A%3E%3D%200.0000%3A%3AGuaranteed%20Positive%20Density%7CCMS%20BIAS%20REMOVED%3A%3A14%20-%2029%20bps%3A%3A10Y20Y%20Replication%20Integral</image:loc>
      <image:title>Comparison of Hagan WKB perturbation breakdown versus Antonov Free-Boundary SABR and Hagan Arbitrage-Free PDE</image:title>
      <image:caption>Fixing Hagan SABR Low-Strike Negative Density via Free-Boundary Approximations — Comparison of Hagan WKB perturbation breakdown versus Antonov Free-Boundary SABR and Hagan Arbitrage-Free PDE (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=10Y10Y%20Receiver%20Wing%20Accuracy%20%28epsilon%20%3D%20nu%5E2%20*%20T%20%3D%201.44%29&amp;subtitle=Benchmarking%20Hagan%202002%2C%20Obloj%202008%2C%20Antonov%20Free-Boundary%2C%20and%20Hagan%202014%201D%20PDE%20against%20Monte%20Carlo&amp;steps=Hagan%20%282002%29%20WKB%3A%3A54.4%20bps%20wing%20error%20at%20K%3D0.50%25%3B%20negative%20PDF%20below%20K%3D1.15%25%20corrupts%20CMS%20pricing%7CObloj%20%282008%29%20Geodesic%20Fix%3A%3AFixes%20beta-rho%20log%20inconsistency%20at%20high%20strikes%20but%20still%20breaks%20down%20for%20nu%5E2*T%20%3E%200.6%7CAntonov%20Free-Boundary%3A%3AWithin%200.35%20bps%20of%201%2C000%2C000-path%20MC%20across%20all%20strikes%20with%20strictly%20positive%20PDF%7CHagan%20%282014%29%201D%20PDE%3A%3AExact%20absorbing-mass%20conservation%20at%20boundary%3B%200.22%20bps%20max%20error%20in%200.8%20ms%20runtime&amp;metrics=WKB%200.5%25%20STRIKE%20ERR%3A%3A%2B54.4%20bps%3A%3ASevere%20Wing%20Overstatement%7CANTONOV%20MAX%20ERR%3A%3A0.35%20bps%3A%3AVs%201M-Path%20Benchmark%20MC%7C1D%20PDE%20RUNTIME%3A%3A0.80%20ms%3A%3A150-Node%20Tridiagonal%20Solve%7CTOTAL%20PDF%20MASS%3A%3A1.0000%3A%3AExact%20Martingale%20Conservation</image:loc>
      <image:title>Comparison of 10Y10Y swaption receiver normal volatility and density accuracy across four SABR solvers</image:title>
      <image:caption>Fixing Hagan SABR Low-Strike Negative Density via Free-Boundary Approximations — Comparison of 10Y10Y swaption receiver normal volatility and density accuracy across four SABR solvers (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/dupire-local-volatility-pde-finite-difference-smoothing</loc>
    <lastmod>2026-11-14T19:52:32.641Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/dupire-local-volatility-pde-finite-difference-smoothing-hero-2026.png</image:loc>
      <image:title>Dupire Local Volatility PDE Extraction and Tikhonov Surface Regularization — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (SVI &amp; SABR Volatility Surface Calibration &amp; No-Arbitrage Conditions): Total-variance Dupire PDE extraction, Tikhonov B-spline smoothing, and Rannacher finite-difference grids.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Production%20Dupire%20Local%20Volatility%20PDE%20Extraction%20Pipeline&amp;subtitle=Transforming%20noisy%20OPRA%20option%20quotes%20into%20smooth%20Crank-Nicolson%20and%20Rannacher%20PDE%20diffusion%20grids&amp;steps=1.%20Tikhonov%20%2F%20SSVI%20Fit%3A%3AMinimize%20vega-weighted%20residuals%20plus%20lambda%20*%20integral%28%20d%5E2%20w%20%2F%20dk%5E2%20%5E2%29%20roughness%20penalty%7C2.%20Analytic%20Partials%3A%3AEvaluate%20exact%20closed-form%20dw%2FdT%2C%20dw%2Fdk%2C%20and%20d%5E2w%2Fdk%5E2%20on%20300x120%20%28k%2C%20T%29%20mesh%7C3.%20Wing%20Floor%20%26%20Cap%3A%3AClamp%20sigma_loc%20within%20%5B5.0%25%2C%20150.0%25%5D%20outside%201-delta%20wings%20to%20bound%20Peclet%20numbers%7C4.%20Rannacher%20ADI%20Solve%3A%3ARun%204%20half-implicit%20Euler%20startup%20steps%20%2B%20Crank-Nicolson%20for%20barrier%20%26%20American%20Greeks&amp;metrics=SKEW%20DOUBLING%3A%3Ad%28loc%29%2Fdk%20%3D%202*d%28IV%29%2Fdk%3A%3AAt-The-Money%20Short-Time%20Law%7CPDE%20MESH%20SIZE%3A%3A300%20x%20120%3A%3AHyperbolic%20Sinh%20Strike%20Concentration%7CVANILLA%20REPRICE%3A%3A%3C%200.04%20vol%3A%3ARound-Trip%20Fokker-Planck%20Error%7CSOLVE%20TIME%3A%3A2.4%20ms%3A%3ATridiagonal%20Thomas%20Algorithm</image:loc>
      <image:title>Dupire local volatility extraction and Crank-Nicolson finite-difference PDE pricing pipeline</image:title>
      <image:caption>Dupire Local Volatility PDE Extraction and Tikhonov Surface Regularization — Dupire local volatility extraction and Crank-Nicolson finite-difference PDE pricing pipeline (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Dupire%20Regularization%20%26%20Forward-Smile%20Diagnostic%20Comparison&amp;subtitle=Evaluating%20vanilla%20repricing%20precision%20vs%201Y-into-1Y%20forward%2090%25-110%25%20skew%20retention&amp;steps=Raw%20Call-Price%20FD%3A%3AFinite%20differences%20on%20raw%20mid-prices%20cause%2042%25%20grid%20nodes%20to%20spike%20or%20go%20NaN%7CTikhonov%20B-Spline%3A%3ASmooths%20local%20vol%20surface%20to%200.05%20vol%20vanilla%20error%20with%20zero%20negative%20denominators%7CAnalytic%20SSVI%20Dupire%3A%3AClosed-form%20derivatives%20run%20in%200.2%20ms%3B%20retains%20only%2031%25%20of%20spot%20skew%20at%201Y%20forward%7C55%25%20SLV%20Mixed%20Engine%3A%3AMatches%20vanilla%20board%20to%200.06%20vol%20while%20preserving%2088%25%20of%20empirical%20forward%20skew&amp;metrics=TIKHONOV%20RMSE%3A%3A0.05%20vol%3A%3AEuropean%20Round-Trip%20Check%7CPURE%20LV%201Y1Y%20SKEW%3A%3A1.8%20vol%20pts%3A%3ASevere%20Forward%20Flattening%7CMARKET%201Y1Y%20SKEW%3A%3A5.6%20vol%20pts%3A%3AOTC%20Forward-Start%20Cliquet%7CSLV%201Y1Y%20SKEW%3A%3A5.1%20vol%20pts%3A%3ARestored%20Forward%20Convexity</image:loc>
      <image:title>Vanilla round-trip error and forward skew retention across Raw Finite-Difference Dupire Spline Dupire SSVI Dupire and SLV</image:title>
      <image:caption>Dupire Local Volatility PDE Extraction and Tikhonov Surface Regularization — Vanilla round-trip error and forward skew retention across Raw Finite-Difference Dupire Spline Dupire SSVI Dupire and SLV (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/stochastic-local-volatility-slv-gyongy-leverage-mixing</loc>
    <lastmod>2026-11-14T19:46:35.516Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/stochastic-local-volatility-slv-gyongy-leverage-mixing-hero-2026.png</image:loc>
      <image:title>Stochastic Local Volatility Mixing Weights and Gyongy Leverage Calibration — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (SVI &amp; SABR Volatility Surface Calibration &amp; No-Arbitrage Conditions): McKean-Vlasov particle calibration of Gyongy leverage functions L(S, t) for exotic barriers and autocallables.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Guyon-Henry-Labord%C3%A8re%20Particle%20SLV%20Calibration%20Engine&amp;subtitle=Nonparametric%20forward-in-time%20McKean-Vlasov%20simulation%20calibrating%20L%28S%2C%20t%29%20in%20a%20single%20pass&amp;steps=1.%20Fit%20Pure%20Heston%3A%3ACalibrate%20baseline%20%28V_0%2C%20kappa%2C%20theta%2C%20xi_0%2C%20rho%29%20and%20scale%20xi%20%3D%20m_mix%20*%20xi_0%7C2.%20Step%20N%20Particles%3A%3AAdvance%2032%2C768%20quasi-random%20%28S_t%5Ei%2C%20V_t%5Ei%29%20particles%20from%20t_n%20to%20t_%7Bn%2B1%7D%7C3.%20Kernel%20Regression%3A%3ACompute%20Nadaraya-Watson%20conditional%20expectation%20E%5BV_%7Bt%2B1%7D%20%20%20S_%7Bt%2B1%7D%20%3D%20S%5D%20across%20bins%7C4.%20Update%20L%28S%2C%20t%2B1%29%3A%3ASet%20L%28S%2C%20t%2B1%29%20%3D%20sigma_loc%28S%2C%20t%2B1%29%20%2F%20sqrt%28E%5BV%20%20%20S%5D%29%20and%20lock%20grid%20slice%20for%20pricing&amp;metrics=PARTICLE%20COUNT%3A%3A32%2C768%20Paths%3A%3ASobol%20%2B%20Brownian%20Bridge%7CCALIBRATION%20TIME%3A%3A38%20ms%3A%3A120%20Time%20Steps%20vs%201.4s%202D%20ADI%7CEQUITY%20MIX%20m_mix%3A%3A0.55%20-%200.65%3A%3ACalibrated%20to%20VVIX%20%26%20Cliquets%7CVANILLA%20DRIFT%3A%3A%3C%3D%200.06%20vol%3A%3AAcross%20Full%20SPX%20Strike%20Strip</image:loc>
      <image:title>Guyon-Henry-Labordere McKean-Vlasov particle method for calibrating SLV Gyongy leverage function forward in time</image:title>
      <image:caption>Stochastic Local Volatility Mixing Weights and Gyongy Leverage Calibration — Guyon-Henry-Labordere McKean-Vlasov particle method for calibrating SLV Gyongy leverage function forward in time (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Exotic%20Price%20Sensitivity%20to%20SLV%20Mixing%20Weight%20m_mix%20%28%25%20Notional%29&amp;subtitle=How%20increasing%20vol-of-vol%20mixing%20shifts%20Down-and-In%20Put%2C%20Up-and-Out%20Call%2C%20and%20Cliquet%20valuations&amp;steps=m_mix%20%3D%200.00%20%28Dupire%29%3A%3AUnderprices%2075%25%20Down-and-In%20Put%20at%202.84%25%20due%20to%20suppressed%20forward%20skew%20%26%20vol-of-vol%7Cm_mix%20%3D%200.35%20%28Low%20Mix%29%3A%3ALifts%20barrier%20knock-in%20value%20to%203.12%25%20while%20retaining%20smooth%20L%28S%2Ct%29%20near%201.0%7Cm_mix%20%3D%200.60%20%28Desk%20Mark%29%3A%3AHits%20broker%20composite%203.39%25%20on%20SPX%20Down-and-In%20Put%20and%20matches%20VVIX%20call%20convexity%7Cm_mix%20%3D%201.00%20%28Full%20SV%29%3A%3APushes%20L%28S%2Ct%29%20toward%20Feller-violation%20spikes%20when%20xi_0%20exceeds%20market%20short-end%20smile&amp;metrics=BARRIER%20SPREAD%3A%3A%2B55%20bps%20Notional%3A%3ASLV%20%280.60%29%20vs%20Pure%20Local%20Vol%7CLEVERAGE%20RANGE%3A%3AL%20in%20%5B0.72%2C%201.34%5D%3A%3AWell-Conditioned%20Multiplier%7CVANILLA%20INVARIANCE%3A%3A0.06%20vol%20Max%3A%3AAcross%20All%20m_mix%20Values%7CAUTOCALL%20VEGA%20SHIFT%3A%3A-18%25%20Peak%20Vega%3A%3AMore%20Realistic%20Barrier%20Bleed</image:loc>
      <image:title>Exotic option pricing spreads across mixing fractions m_mix from 0.0 Pure Local Vol to 1.0 Pure Stochastic Vol</image:title>
      <image:caption>Stochastic Local Volatility Mixing Weights and Gyongy Leverage Calibration — Exotic option pricing spreads across mixing fractions m_mix from 0.0 Pure Local Vol to 1.0 Pure Stochastic Vol (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/equity-hedge-fund-losses-spread-in-october</loc>
    <lastmod>2026-11-14T13:51:47.574Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/equity-hedge-fund-losses-spread-in-october-as-managers-soured-on-u-s-tec-fbf70f7a.jpg</image:loc>
      <image:title>A graph showing a decline in equity hedge fund performance, with a focus on losses in U.S. tech shares.</image:title>
      <image:caption>Equity hedge fund losses widened in October as managers grew increasingly bearish on U.S. tech shares, a trend that could have significant implications for the sector.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/hedge-fund-pioneer-tweaks-playbook-the-star</loc>
    <lastmod>2026-11-14T12:33:58.314Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/hedge-fund-pioneer-tweaks-playbook-the-star-66fc9155.jpg</image:loc>
      <image:title>A hedge fund manager reviewing a financial chart, considering a change in strategy.</image:title>
      <image:caption>Hedge fund pioneer adjusts investment strategy in response to shifting market conditions.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/heston-characteristic-function-fft-carr-madan-surface-fit</loc>
    <lastmod>2026-11-14T19:48:15.009Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/heston-characteristic-function-fft-carr-madan-surface-fit-hero-2026.png</image:loc>
      <image:title>Heston Characteristic Function FFT Pricing Versus SVI Smile Interpolation — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (SVI &amp; SABR Volatility Surface Calibration &amp; No-Arbitrage Conditions): Branch-safe Little-Trap characteristic functions, Fang-Oosterlee COS pricing, and SVI asymptotic convergence.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Branch-Safe%20Heston%20Characteristic%20Function%20%26%20COS%20Pricing%20Engine&amp;subtitle=Vectorized%20pricing%20of%20200%20strikes%20across%2012%20expirations%20in%201.1%20milliseconds%20without%20FFT%20damping%20bias&amp;steps=1.%20Little-Trap%20CF%3A%3AEvaluate%20phi_T%28u%29%20using%20g_2%20%3D%20%28beta%20-%20d%29%2F%28beta%20%2B%20d%29%20and%20exp%28-d*T%29%20to%20prevent%20branch%20flips%7C2.%20Cumulant%20Domain%3A%3ATruncate%20%5Ba%2C%20b%5D%20log-asset%20domain%20via%20analytic%20Heston%20c_1%2C%20c_2%2C%20c_4%20cumulants%20%28L%20%3D%2012%29%7C3.%20N%3D128%20COS%20Series%3A%3AVectorize%20128%20Fourier-Cosine%20terms%20across%20all%20strikes%20K_j%20simultaneously%20via%20matrix%20multiply%7C4.%20IV%20Root%20Invert%3A%3AInvert%20Black-Scholes%20IV%20via%20Jaeckel%20Let-Be-Rational%20%282%20Halley%20steps%2C%201e-15%20precision%29&amp;metrics=COS%20TERMS%20N%3A%3A128%20Nodes%3A%3AExponential%20Spectral%20Convergence%7CPRICE%20ACCURACY%3A%3A%3C%201e-11%3A%3ADouble-Precision%20Machine%20Floor%7C2%2C400-OPT%20CHAIN%3A%3A1.1%20ms%3A%3A14x%20Faster%20Than%204096-Pt%20FFT%7CSHORT-END%20MISS%3A%3A0.85%20vol%3A%3A7-DTE%20SPX%20Skew%20Limitation</image:loc>
      <image:title>Heston Little-Trap characteristic function evaluation and Fang-Oosterlee COS Fourier option chain pricing workflow</image:title>
      <image:caption>Heston Characteristic Function FFT Pricing Versus SVI Smile Interpolation — Heston Little-Trap characteristic function evaluation and Fang-Oosterlee COS Fourier option chain pricing workflow (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Multi-Tenor%20SPX%20Surface%20Fit%20Error%20by%20Stochastic%20Model%20Family&amp;subtitle=Comparing%207-DTE%20short-end%20vs%2030D-365D%20core%20term-structure%20RMSE%20across%202%2C400%20SPX%20options&amp;steps=5-Param%20Pure%20Heston%3A%3AFits%201M-1Y%20well%20%280.24%20vol%29%20but%20misses%207-DTE%20put%20skew%20by%200.92%20vol%20without%20Feller%20blowup%7C8-Param%20Bates%20%28SVJ%29%3A%3AAdds%20Poisson%20downward%20jumps%20%28-4.8%25%20mean%29%2C%20cutting%207-DTE%20error%20from%200.92%20to%200.28%20vol%7CRough%20Bergomi%20%283-Param%29%3A%3AMatches%20T%5E%28-0.45%29%20short-end%20skew%20law%20naturally%20with%200.21%20vol%20multi-tenor%20RMSE%7CPower-Law%20SSVI%3A%3AParametric%20no-arb%20surface%20benchmark%20at%200.26%20vol%20global%20RMSE%20in%200.1%20ms%20evaluation&amp;metrics=HESTON%201M-1Y%20RMSE%3A%3A0.24%20vol%3A%3AStrong%20Medium%2FLong%20Fit%7CBATES%207D%20RMSE%3A%3A0.28%20vol%3A%3AJump-Assisted%20Short%20Wing%7CVARIANCE%20SWAP%20E%5BV%5D%3A%3AExact%20Analytic%3A%3Av_0*w%20%2B%20theta*%281-w%29%7CCOS%20SPEEDUP%3A%3A14.2x%3A%3AVs%204096-Point%20Carr-Madan</image:loc>
      <image:title>Implied volatility calibration RMSE comparison across Carr-Madan Heston Bates SVJ SSVI and Rough Bergomi</image:title>
      <image:caption>Heston Characteristic Function FFT Pricing Versus SVI Smile Interpolation — Implied volatility calibration RMSE comparison across Carr-Madan Heston Bates SVJ SSVI and Rough Bergomi (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/viking-hedge-funds-holy-grail-metric-shows-signs-of-strain</loc>
    <lastmod>2026-11-14T12:26:31.793Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/viking-hedge-fund-s-holy-grail-metric-shows-signs-of-strain-bloomberg-8282a2d5.jpg</image:loc>
      <image:title>A graph showing a strain in a financial metric, with a downward trend and a red arrow indicating decline.</image:title>
      <image:caption>Viking Hedge Fund&apos;s key metric, often referred to as its &apos;Holy Grail,&apos; is showing signs of strain, raising concerns about the fund&apos;s performance.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/bc-nikkei-225-futures-yahoo-finance-australia</loc>
    <lastmod>2026-11-14T12:19:23.547Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/bc-nikkei-225-futures-yahoo-finance-australia-4410fe6e.jpg</image:loc>
      <image:title>A graph showing the Nikkei 225 futures index, with a focus on the fluctuations and trends in the market, as reported by Yahoo Finance Australia.</image:title>
      <image:caption>The Nikkei 225 futures index experiences fluctuations, according to data from Yahoo Finance Australia.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/rough-bergomi-fractional-volatility-short-dated-skew-power</loc>
    <lastmod>2026-11-14T21:43:07.922Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/rough-bergomi-fractional-volatility-short-dated-skew-power-hero-2026.png</image:loc>
      <image:title>Rough Bergomi Hurst Exponent Scaling for Ultra-Short SPX Volatility Skew — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (SVI &amp; SABR Volatility Surface Calibration &amp; No-Arbitrage Conditions): Fractional Hurst H ~ 0.10 Volterra volatility scaling for ultra-short SPX skew and VIX consistency.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Production%20Rough%20Bergomi%20Calibration%20%26%20Pricing%20Architecture&amp;subtitle=Overcoming%20non-Markovian%20Volterra%20complexity%20via%20Hybrid%20schemes%2C%20Markovian%20lifts%2C%20and%20Deep%20Surrogates&amp;steps=1.%20Forward%20Var%20xi_0%28t%29%3A%3AStrip%20initial%20forward%20variance%20curve%20xi_0%28t%29%20directly%20from%20SPX%20log-contract%20strips%7C2.%20Bennedsen%20Hybrid%20MC%3A%3AExact%20covariance%20Cholesky%20on%20singular%20near-zero%20kernel%20step%20%2B%20Wiener%20Riemann%20sums%7C3.%20Turbocharging%20%2F%20ML%3A%3AApply%20McCrickerd-Pakkanen%20conditional%20BSM%20control%20variates%20or%20Deep%20Neural%20Map%20%280.3%20ms%29%7C4.%20VIX%20%26%20SPX%20Joint%20Fit%3A%3AJointly%20fit%20%28H%2C%20eta%2C%20rho%29%20to%20SPX%20options%20and%20VIX%20futures%2Fcalls%20with%20skew%20consistency&amp;metrics=HURST%20EXPONENT%20H%3A%3A0.08%20-%200.12%3A%3AAnti-Persistent%20Rough%20Paths%7CSKEW%20POWER%20LAW%3A%3AT%5E%28-0.405%29%3A%3AExact%201D-to-1Y%20Scaling%7CMC%20VARIANCE%20CUT%3A%3A45x%20Faster%3A%3AConditional%20BSM%20Turbocharge%7CNEURAL%20EVAL%20SPEED%3A%3A0.28%20ms%3A%3AHorvath-Muguruza%20Grid%20Map</image:loc>
      <image:title>Hybrid scheme and neural surrogate calibration pipeline for Rough Bergomi fractional volatility surfaces</image:title>
      <image:caption>Rough Bergomi Hurst Exponent Scaling for Ultra-Short SPX Volatility Skew — Hybrid scheme and neural surrogate calibration pipeline for Rough Bergomi fractional volatility surfaces (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=ATM%20Skew%20Term%20Structure%20Tracking%3A%201-DTE%20Through%201-Year%20LEAPS&amp;subtitle=SPX%20ATM%20skew%20%7Cd%28IV%29%2Fdk%7C%20in%20vol%20points%20per%2010%25%20log-moneyness%20across%20four%20model%20paradigms&amp;steps=2-DTE%20Ultra-Short%3A%3AMarket%20-4.18%20vol%2F10%25%3B%20rBergomi%20-4.25%3B%20Pure%20Heston%20saturates%20flat%20at%20-1.55%7C7-DTE%20Weekly%3A%3AMarket%20-2.58%20vol%2F10%25%3B%20rBergomi%20-2.54%3B%20Merton%20jump%20decays%20too%20abruptly%20by%20week%202%7C30-DTE%20Monthly%3A%3AAll%20calibrated%20models%20anchor%20near%20-1.42%20vol%2F10%25%20benchmark%20VIX%20horizon%7C180-DTE%20Semi-Annual%3A%3AMarket%20-0.68%20vol%2F10%25%3B%20rBergomi%20-0.69%3B%20Heston%20exponential%20decay%20drops%20to%20-0.44&amp;metrics=LOG-LOG%20SKEW%20R2%3A%3A0.986%3A%3AEmpirical%20SPX%20Power%20Law%7CFREE%20PARAMETERS%3A%3A3%20%28H%2C%20eta%2C%20rho%29%3A%3APlus%20Observed%20xi_0%28t%29%7CMARKOV%20LIFT%20N_f%3A%3A8%20Exponentials%3A%3A%3C%200.08%20vol%20Kernel%20Error%7CCALIBRATION%20SPEED%3A%3A14%20ms%3A%3AVia%20Neural%20%2F%20Lift%20Surrogate</image:loc>
      <image:title>ATM implied volatility skew scaling from 1D to 365D comparing Empirical SPX Rough Bergomi Heston and Merton Jump</image:title>
      <image:caption>Rough Bergomi Hurst Exponent Scaling for Ultra-Short SPX Volatility Skew — ATM implied volatility skew scaling from 1D to 365D comparing Empirical SPX Rough Bergomi Heston and Merton Jump (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/hedge-fund-woes-expose-hot-money-dangers</loc>
    <lastmod>2026-11-14T12:04:08.067Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/hedge-fund-woes-expose-the-dangers-of-hot-money-once-again-financial-tim-f116800f.jpg</image:loc>
      <image:title>A graph illustrating the fluctuations in hedge fund investments, highlighting the risks associated with hot money.</image:title>
      <image:caption>The recent struggles of hedge funds serve as a reminder of the perils of hot money, which can quickly turn against investors.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/american-equity-options-de-americanization-discrete-dividends</loc>
    <lastmod>2026-11-14T21:48:48.641Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/american-equity-options-de-americanization-discrete-dividends-hero-2026.png</image:loc>
      <image:title>De-Americanizing Single-Stock Equity Options Under Discrete Cash Dividends — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (SVI &amp; SABR Volatility Surface Calibration &amp; No-Arbitrage Conditions): Stripping American early-exercise premia and discrete cash dividend kinks from US equity option chains.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Single-Stock%20Option%20De-Americanization%20%26%20Dividend%20Stripping%20Pipeline&amp;subtitle=Converting%20OPRA%20American%20single-stock%20quotes%20into%20pure%20European%20martingale%20implied%20volatilities&amp;steps=1.%20OIS%20%26%20Div%20Strip%3A%3ABootstrap%20SOFR%20OIS%20discount%20curve%20%2B%20implied%20cash%20dividend%20schedule%20%26%20borrow%20rate%20q_b%7C2.%20American%20IV%20Invert%3A%3ASolve%20250-step%20Leisen-Reimer%20tree%20or%20Andersen-Lake%20QD%2B%20integral%20for%20sigma_Amer%28K%29%7C3.%20EEP%20Subtraction%3A%3ACompute%20European%20model%20price%20at%20sigma_Amer%20%28or%20local-vol%20EEP%29%20to%20strip%20early-exercise%20value%7C4.%20Pure%20Martingale%20Fit%3A%3AFit%20SVI%2FeSSVI%20to%20pure%20stochastic%20process%20X_t%20%3D%20%28S_t%20-%20Floor_t%29%20%2F%20Forward_X&amp;metrics=DEEP%20PUT%20EEP%20BIAS%3A%3A0.8%20-%203.4%20vol%3A%3AAt%204.25%25%20SOFR%20Rate%7CEX-DIV%20CALL%20BIAS%3A%3A0.4%20-%201.9%20vol%3A%3AHigh-Yield%20Value%20Names%7CANDERSEN-LAKE%3A%3A0.008%20ms%2Fopt%3A%3AChebyshev%20Integral%20Solver%7CTREE%20CONVERGENCE%3A%3A%3C%200.01%20bps%3A%3ALeisen-Reimer%20Odd-Step%20Grid</image:loc>
      <image:title>Iterative American PDE/Tree de-Americanization pipeline for listed single-stock equity option chains</image:title>
      <image:caption>De-Americanizing Single-Stock Equity Options Under Discrete Cash Dividends — Iterative American PDE/Tree de-Americanization pipeline for listed single-stock equity option chains (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Unstripped%20Early-Exercise%20Bias%20Across%20Single-Stock%20Regimes%20%28Vol%20Pts%29&amp;subtitle=Error%20introduced%20into%2090-DTE%20SVI%20wings%20when%20American%20OPRA%20quotes%20are%20treated%20as%20European&amp;steps=High-SOFR%20Put%20Wing%3A%3Ar%20%3D%204.35%25%20creates%20%2B0.82%20to%20%2B2.90%20vol%20phantom%20put%20skew%20on%2080%25-90%25%20moneyness%20strikes%7CHigh-Div%20Call%20Wing%3A%3A4.8%25%20dividend%20payer%20exhibits%20%2B1.45%20vol%20phantom%20call%20wing%20bump%20ahead%20of%20ex-div%20date%7CHard-to-Borrow%20Stock%3A%3Aq_borrow%20%3D%2012%25%20flips%20early%20exercise%20from%20puts%20to%20calls!%20Call%20EEP%20reaches%20%2B3.80%20vol%7C2-Pass%20LV%20Stripping%3A%3AReduces%20residual%20American-to-European%20surface%20error%20below%200.02%20vol%20across%20all%20regimes&amp;metrics=PUT%20WING%20BIAS%3A%3A%2B0.82%20to%20%2B2.9v%3A%3AWhen%20SOFR%20r%20%3D%204.35%25%7CHTB%20CALL%20BIAS%3A%3A%2B3.80%20vol%3A%3AAt%2012%25%20Stock%20Borrow%20Fee%7C2-PASS%20RESIDUAL%3A%3A%3C%200.02%20vol%3A%3AFixed-Point%20PDE%20Convergence%7CCLEARING%20MARGIN%3A%3AOCC%20STANS%3A%3AAmerican%20Exercise%20Aware</image:loc>
      <image:title>Implied volatility distortion in vol points when skipping de-Americanization across High-Rate Tech Dividend Value and Hard-to-Borrow stocks</image:title>
      <image:caption>De-Americanizing Single-Stock Equity Options Under Discrete Cash Dividends — Implied volatility distortion in vol points when skipping de-Americanization across High-Rate Tech Dividend Value and Hard-to-Borrow stocks (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/put-call-parity-implied-forward-repo-rate-surface-cleaning</loc>
    <lastmod>2026-11-14T19:47:14.969Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/put-call-parity-implied-forward-repo-rate-surface-cleaning-hero-2026.png</image:loc>
      <image:title>Extracting Implied Forward and Borrow Rates Before Volatility Surface Fitting — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (SVI &amp; SABR Volatility Surface Calibration &amp; No-Arbitrage Conditions): Weighted put-call parity box regressions extracting exact implied forwards F_T and dealer box financing.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Put-Call%20Parity%20Forward%20%26%20Box-Rate%20Extraction%20Pipeline&amp;subtitle=Simultaneously%20solving%20implied%20forward%20F_T%20and%20financing%20factor%20D%280%2CT%29%20before%20inverting%20implied%20vols&amp;steps=1.%20Filter%20Stale%20Quotes%3A%3ADiscard%20locked%2Fcrossed%20quotes%20and%20strikes%20outside%20%2B-3%25%20ATM%20or%20spread%20%3E%20%241.20%7C2.%20Spread-Weighted%20WLS%3A%3ARegress%20y_i%20%3D%20C_i%20-%20P_i%20on%20K_i%20weighted%20by%201%20%2F%20%28Spread_C%5E2%20%2B%20Spread_P%5E2%29%7C3.%20Solve%20Box%20%26%20Forward%3A%3ARecover%20D_imp%20%3D%20-slope%20and%20F_imp%20%3D%20intercept%20%2F%20D_imp%3B%20clamp%20D_imp%20to%20SOFR%20%2B-35%20bps%7C4.%20OTM%20Wing%20Selection%3A%3AInvert%20Black-76%20IV%20strictly%20from%20OTM%20puts%20%28K%20%3C%20F_imp%29%20and%20OTM%20calls%20%28K%20%3E%3D%20F_imp%29&amp;metrics=15%20BPS%20FWD%20ERROR%3A%3A0.65%20vol%20Split%3A%3A14-DTE%20Call-vs-Put%20Gap%7CCLEANED%20C-P%20GAP%3A%3A%3C%200.01%20vol%3A%3APerfectly%20Smooth%20ATM%20Join%7CBOX%20RATE%20SPREAD%3A%3ASOFR%20%2B%2022%20bps%3A%3ATypical%20SPX%20Box%20Financing%7CREGRESSION%20STRIKES%3A%3A12%20Near-ATM%3A%3AInverse-Variance%20Weighted</image:loc>
      <image:title>Put-call parity weighted regression and implied repo borrow extraction workflow for clean volatility surfaces</image:title>
      <image:caption>Extracting Implied Forward and Borrow Rates Before Volatility Surface Fitting — Put-call parity weighted regression and implied repo borrow extraction workflow for clean volatility surfaces (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Call-Put%20Implied%20Volatility%20Split%20From%20a%2010-bps%20Forward%20Error&amp;subtitle=Demonstrating%20the%202.51%20%2F%20sqrt%28T%29%20inverse-root%20amplification%20as%20expiration%20approaches&amp;steps=90-DTE%20Quarterly%3A%3A10%20bps%20forward%20error%20causes%200.42%20vol%20split%E2%80%94already%204x%20larger%20than%20raw%20SVI%20RMSE%20target%7C30-DTE%20Monthly%3A%3A10%20bps%20forward%20error%20widens%20call-put%20split%20to%200.87%20vol%20points%20at%20the%20ATM%20crossover%7C5-DTE%20Weekly%3A%3A10%20bps%20forward%20error%20blows%20out%20ATM%20discrepancy%20to%201.78%20vol%20points%2C%20breaking%20g%28k%29%20%3E%3D%200%7C0DTE%20%283%20Hrs%20Left%29%3A%3A10%20bps%20forward%20error%20creates%20a%205.98%20vol%20cliff%E2%80%94mandatory%20live%20ES%20futures%20micro-price%20sync&amp;metrics=30D%20SPLIT%20%2F%2010%20BPS%3A%3A0.87%20vol%3A%3ARuins%20Uncleaned%20SVI%20Fit%7C0DTE%20SPLIT%20%2F%2010%20BPS%3A%3A5.98%20vol%3A%3ARequires%20Live%20ES%20Basis%20Sync%7CBOX%20FINANCING%3A%3ASOFR%20%2B%2022%20bps%3A%3AOCC%20Cleared%20SPX%20Box%20Rate%7CPOST-CLEAN%20SPLIT%3A%3A0.00%20vol%3A%3ABy%20Parity%20Construction</image:loc>
      <image:title>ATM call minus put implied volatility discrepancy across 0DTE 5DTE 30DTE and 90DTE for a 10 bps forward error</image:title>
      <image:caption>Extracting Implied Forward and Borrow Rates Before Volatility Surface Fitting — ATM call minus put implied volatility discrepancy across 0DTE 5DTE 30DTE and 90DTE for a 10 bps forward error (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vega-weighted-least-squares-bid-ask-penalty-svi-optimizers</loc>
    <lastmod>2026-11-14T19:50:38.482Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vega-weighted-least-squares-bid-ask-penalty-svi-optimizers-hero-2026.png</image:loc>
      <image:title>Vega-Weighted Least Squares and Bid-Ask Penalty Splines in SVI Optimizers — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (SVI &amp; SABR Volatility Surface Calibration &amp; No-Arbitrage Conditions): Inverse spread-variance WLS, bid-ask deadband hinges, and one-sided zero-bid wing walls.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Institutional%20SVI%20Objective%20Function%20%26%20Penalty%20Architecture&amp;subtitle=Four-component%20composite%20loss%20ensuring%2099.4%25%20of%20fitted%20quotes%20land%20strictly%20inside%20OPRA%20bid-ask%20widths&amp;steps=1.%20Spread%20IV%20Weights%3A%3ACompute%20w_i%20%3D%201%20%2F%20max%280.05%20vol%2C%20IV_ask%20-%20IV_bid%29%5E2%20%3D%20Vega_i%5E2%20%2F%20DollarSpread_i%5E2%7C2.%20Huber%20Core%20Loss%3A%3AApply%20pseudo-Huber%20loss%20delta%3D0.15%20vol%20to%20downweight%20single-strike%20stale%20print%20outliers%7C3.%20Bid-Ask%20Hinge%20Wall%3A%3AAdd%2050x%20quadratic%20hinge%20penalty%20whenever%20sigma_fit%20exits%20%5BIV_bid%2C%20IV_ask%5D%20corridor%7C4.%20No-Arb%20Soft%20Barrier%3A%3AAdd%20Durrleman%20g%28k%29%20%3E%3D%200.01%20and%20prior%20parameter%20Tether%20%20%20theta%20-%20theta_prev%20%20_M%5E2&amp;metrics=INSIDE%20BID-ASK%20HIT%3A%3A99.4%25%20Strikes%3A%3AAcross%20195-Strike%20SPX%20Chain%7CATM%20RESIDUAL%3A%3A%3C%3D%200.03%20vol%3A%3APinned%20Tightly%20Inside%200.07%20Width%7COUTLIER%20IMMUNITY%3A%3AZero%20Pull%3A%3AHuber%20Rejects%20Stale%20Spoof%20Ticks%7CLEVENBERG%20STEPS%3A%3A6%20-%209%20Iters%3A%3ATrust-Region%20Analytic%20Jacobian</image:loc>
      <image:title>Production SVI objective function architecture combining inverse bid-ask IV weights deadband hinge loss and Huber tails</image:title>
      <image:caption>Vega-Weighted Least Squares and Bid-Ask Penalty Splines in SVI Optimizers — Production SVI objective function architecture combining inverse bid-ask IV weights deadband hinge loss and Huber tails (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Empirical%20Optimizer%20Comparison%20on%2030-DTE%20SPX%20Chain%20%28195%20Strikes%29&amp;subtitle=Benchmarking%20Unweighted%20IV%20OLS%2C%20Pure%20Vega%5E2%20Dollar%20OLS%2C%20Inverse-Spread%20WLS%2C%20and%20Hinge-Huber%20WLS&amp;steps=Unweighted%20IV%20OLS%3A%3AOnly%2078.4%25%20of%20fitted%20quotes%20land%20inside%20bid-ask%3B%20ATM%20misses%20mid%20by%200.24%20vol%20points!%7CPure%20Vega%5E2%20Dollar%20OLS%3A%3APins%20ATM%20to%200.02%20vol%2C%20but%205-delta%20and%202-delta%20wings%20breach%20ask%20quotes%20by%201.40%20vol%7CInverse-Spread%20WLS%3A%3ALifts%20bid-ask%20hit%20rate%20to%2094.8%25%20with%20balanced%200.04%20vol%20ATM%20accuracy%7CHinge%20%2B%20Huber%20%2B%20Zero-Bid%3A%3AAchieves%2099.4%25%20bid-ask%20hit%20rate%2C%200.03%20vol%20ATM%20precision%2C%20and%20zero%20butterfly%20dents&amp;metrics=UNWEIGHTED%20HIT%20%25%3A%3A78.4%25%3A%3AFails%20ATM%20Execution%20Gate%7CPURE%20VEGA%20WING%20ERR%3A%3A1.40%20vol%3A%3AMisprices%20Tail%20Vomma%20Risk%7CHINGE-HUBER%20HIT%20%25%3A%3A99.4%25%3A%3AProduction%20Gold%20Standard%7CZERO-BID%20WALL%3A%3AOne-Sided%20Ask%3A%3ACaps%20Left%20Tail%20Extrapolation</image:loc>
      <image:title>Percentage of strikes inside OPRA bid-ask spread and ATM fit error across four SVI weighting schemes</image:title>
      <image:caption>Vega-Weighted Least Squares and Bid-Ask Penalty Splines in SVI Optimizers — Percentage of strikes inside OPRA bid-ask spread and ATM fit error across four SVI weighting schemes (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/essvi-extended-surface-svi-term-structure-rho-monotonicity</loc>
    <lastmod>2026-11-14T21:43:41.977Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/essvi-extended-surface-svi-term-structure-rho-monotonicity-hero-2026.png</image:loc>
      <image:title>Extended SSVI Term-Structure Rho Monotonicity Across Quarterly Listed Options — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (SVI &amp; SABR Volatility Surface Calibration &amp; No-Arbitrage Conditions): Hendriks-Martini tenor-dependent rho_t cone calibration and broken-date (theta, p, c) interpolation.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Sequential%20No-Arbitrage%20eSSVI%20Bootstrap%20Pipeline&amp;subtitle=Bootstrapping%20tenor-specific%20%28theta_i%2C%20rho_i%2C%20psi_i%29%20slices%20forward%20from%20T_1%20to%20T_N%20with%20zero%20arbitrage&amp;steps=1.%20Slice%201%20Fit%3A%3ACalibrate%20%28theta_1%2C%20rho_1%2C%20psi_1%29%20on%20front%20slice%20under%20psi_1*%281%2B%20rho_1%20%29%20%3C%204%20and%20butterfly%20gate%7C2.%20Cone%20Bounds%20i-1-%3Ei%3A%3ABound%20psi_i%20%2B%2F-%20rho_i*psi_i%20%3E%3D%20psi_%7Bi-1%7D%20%2B%2F-%20rho_%7Bi-1%7D*psi_%7Bi-1%7D%20to%20lock%20wing%20monotonicity%7C3.%20Theta%20Floor%20Gate%3A%3AEnforceHendriks-Martini%20minimum%20theta_i%20%3E%3D%20theta_%7Bi-1%7D%20*%20f%28rho_%7Bi-1%7D%2C%20rho_i%2C%20psi_%7Bi-1%7D%2C%20psi_i%29%7C4.%20Convex%20Interp%3A%3AInterpolate%20intermediate%20tenors%20t%20in%20%28T_%7Bi-1%7D%2C%20T_i%29%20via%20convex%20weights%20on%20%28theta%2C%20psi%2C%20rho*psi%29&amp;metrics=DEGREES%20OF%20FREEDOM%3A%3A3%20Per%20Slice%3A%3A%28theta_i%2C%20rho_i%2C%20psi_i%29%7CGLOBAL%20SPX%20RMSE%3A%3A0.14%20vol%3A%3A46%25%20Tighter%20Than%20Constant%20SSVI%7CRHO%20TERM%20RANGE%3A%3A-0.78%20-%3E%20-0.64%3A%3ACaptures%20Quarterly%20Collar%20Skew%7CARBITRAGE%20COUNT%3A%3A0%20Violations%3A%3AAnalytical%20Cone%20%2B%20Interpolant</image:loc>
      <image:title>Sequential bootstrap algorithm for Hendriks-Martini Extended SSVI eSSVI across multi-tenor index option chains</image:title>
      <image:caption>Extended SSVI Term-Structure Rho Monotonicity Across Quarterly Listed Options — Sequential bootstrap algorithm for Hendriks-Martini Extended SSVI eSSVI across multi-tenor index option chains (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Quarterly%20Collar-Expiry%20Fit%20Accuracy%3A%20SSVI%20vs%20Extended%20eSSVI&amp;subtitle=Implied%20volatility%20RMSE%20%28vol%20points%29%20across%20front%20weeklies%2C%20quarterly%20collar%20expiries%2C%20and%20LEAPS&amp;steps=7D-21D%20Weeklies%3A%3AeSSVI%20lets%20rho_t%20steepen%20to%20-0.78%2C%20trimming%20weekly%20wing%20residual%20from%200.31%20to%200.13%20vol%7CQuarterly%20Collar%20Slices%3A%3AAbsorbs%20%2416B%2B%20OTM%20call%20supply%20kink%20cleanly%3A%200.14%20vol%20RMSE%20vs%200.34%20vol%20in%20constant%20SSVI%7C1Y-3Y%20LEAPS%20Strip%3A%3ARelaxes%20rho_t%20to%20-0.64%20as%20structured-note%20vega%20lifts%20upside%20long-dated%20call%20wings%7CCustom%20OTC%20Dates%3A%3ALinear%20%28theta%2C%20p%2C%20c%29%20interpolation%20prices%20broken-date%20variance%20%26%20barrier%20options%20arb-free&amp;metrics=COLLAR%20SLICE%20GAIN%3A%3A-59%25%20Error%3A%3A0.34%20-%3E%200.14%20vol%20RMSE%7CINTERP%20SAFETY%3A%3A100%25%20Convex%3A%3ALinear%20in%20%28theta%2C%20p%2C%20c%29%7CBOOTSTRAP%20SPEED%3A%3A6.2%20ms%3A%3A22%20Sequential%202D%20Solves%7CBENCHMARK%20STD%3A%3ASABR-SVI-2026%3A%3AInstitutional%20Surface%20Spec</image:loc>
      <image:title>Fit RMSE across 22 SPX expiries comparing Raw SVI Constant-Rho SSVI and Extended eSSVI on quarterly collar dates</image:title>
      <image:caption>Extended SSVI Term-Structure Rho Monotonicity Across Quarterly Listed Options — Fit RMSE across 22 SPX expiries comparing Raw SVI Constant-Rho SSVI and Extended eSSVI on quarterly collar dates (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/breeden-litzenberger-risk-neutral-pdf-tail-extrapolation</loc>
    <lastmod>2026-11-14T19:52:13.128Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/breeden-litzenberger-risk-neutral-pdf-tail-extrapolation-hero-2026.png</image:loc>
      <image:title>Breeden-Litzenberger Risk-Neutral Density Recovery and Pareto Wing Tails — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (SVI &amp; SABR Volatility Surface Calibration &amp; No-Arbitrage Conditions): Risk-neutral density extraction, digital skew wedges, and C^1 Pareto crash-tail completion.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Risk-Neutral%20PDF%20Recovery%20%26%20Generalized%20Pareto%20Wing%20Grafting&amp;subtitle=Constructing%20martingales%20satisfying%20exact%20mass%20%3D%201.0000%20and%20mean%20%3D%20F_T%20across%20%5B0%2C%20%2Binfinity%29&amp;steps=1.%20Interior%20SVI%20PDF%3A%3ACompute%20analytical%20q%28K%29%20%3D%20%5Bphi%28d_2%29%2F%28K*sqrt%28w%29%29%5D%20*%20g%28k%29%20inside%20liquid%20%5B3d%20Put%2C%203d%20Call%5D%7C2.%20Match%20Cutoffs%3A%3ARead%20interior%20CDF%20Q%28K_L%29%2C%20density%20q%28K_L%29%2C%20and%20slope%20q&apos;%28K_L%29%20at%203-delta%20splice%20points%7C3.%20Pareto%20Wing%20Graft%3A%3AAttach%20power-law%20left%20tail%20q_L%28K%29%20%3D%20A_L%20*%20K%5E%28q_tilde%20-%201%29%20and%20right%20tail%20B_R%20*%20K%5E%28-2%20-%20p_tilde%29%7C4.%20Moment%20Audit%3A%3AVerify%20integral%20q%28K%29%20dK%20%3D%201.0000%2C%20integral%20K*q%28K%29%20dK%20%3D%20F_T%2C%20and%20compute%20Cboe%20SKEW%20%2F%20VaR&amp;metrics=LEFT%20CRASH%20PROB%3A%3A3.85%25%20%28%3C%20-15%25%29%3A%3A30-Day%20SPX%20Risk-Neutral%20Q%7CMASS%20CONSERVATION%3A%3A1.000000%3A%3AInterior%20%2B%20Left%20%2B%20Right%20Tails%7CFORWARD%20MARTINGALE%3A%3AE%5EQ%5BS_T%5D%20%3D%20F_T%3A%3AZero%20Put-Call%20Parity%20Leak%7CCBOE%20SKEW%20LEVEL%3A%3A148.5%3A%3A3rd%20Log-Moment%20Benchmark</image:loc>
      <image:title>Breeden-Litzenberger risk-neutral density extraction and Pareto left/right wing tail grafting workflow</image:title>
      <image:caption>Breeden-Litzenberger Risk-Neutral Density Recovery and Pareto Wing Tails — Breeden-Litzenberger risk-neutral density extraction and Pareto left/right wing tail grafting workflow (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=30-Day%20SPX%20Tail%20Probability%20Decomposition%3A%20Gaussian%20vs%20Q%20vs%20P&amp;subtitle=Probability%20of%2030-day%20S%26P%20500%20drawdown%20exceeding%20-10%25%20and%20-20%25%20across%20three%20probability%20measures&amp;steps=Flat%20BSM%20%2817.5%25%20IV%29%3A%3AAssigns%20only%200.18%25%20probability%20to%20a%20-15%25%2030-day%20drop%E2%80%9421x%20below%20option%20market%20pricing!%7CRisk-Neutral%20Q%20%28SVI%29%3A%3APrices%203.85%25%20Q-probability%20on%20%3C%3D%20-15%25%20crash%20and%201.42%25%20on%20%3C%3D%20-20%25%20left%20tail%7CPhysical%20CRRA%20P%20%28gamma%3D3%29%3A%3ARisk-adjusted%20actuarial%20crash%20odds%20sit%20at%201.05%25%20%28%3C%3D%20-15%25%29%2C%20quantifying%203.7x%20variance%20risk%20premium%7CBimodal%20Event%20Overlay%3A%3AElection%20%2F%20tariff%20binary%20dates%20split%20interior%20Q-density%20into%20distinct%20twin%20peaks&amp;metrics=Q-PROB%20%28%3C%3D%20-15%25%29%3A%3A3.85%25%3A%3A21x%20Lognormal%20Gaussian%7CKERNEL%20RATIO%20dQ%2FdP%3A%3A3.67x%20at%20-15%25%3A%3ACrash%20Risk-Aversion%20Wedge%7CDIGITAL%20SKEW%20ADJ%3A%3A-5.4%25%20Prob%3A%3AVega%20*%20d%28sigma%29%2FdK%20Wedge%7CLOG-CONTRACT%20VIX%3A%3AExact%20Match%3A%3AVia%20Full%20%5B0%2C%20inf%29%20Pareto%20PDF</image:loc>
      <image:title>Comparison of 30-day SPX tail probabilities across Lognormal BSM Risk-Neutral Breeden-Litzenberger Q and Physical CRRA P</image:title>
      <image:caption>Breeden-Litzenberger Risk-Neutral Density Recovery and Pareto Wing Tails — Comparison of 30-day SPX tail probabilities across Lognormal BSM Risk-Neutral Breeden-Litzenberger Q and Physical CRRA P (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/intraday-arbitrage-free-vol-surface-kalman-filter-updates</loc>
    <lastmod>2026-11-14T19:49:34.427Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/intraday-arbitrage-free-vol-surface-kalman-filter-updates-hero-2026.png</image:loc>
      <image:title>Kalman Filter State-Space Updates for Intraday Arbitrage-Free Volatility Grids — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (SVI &amp; SABR Volatility Surface Calibration &amp; No-Arbitrage Conditions): Sub-millisecond constrained EKF state-space volatility surface streaming with ES spot-beta lead.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Real-Time%20Constrained%20EKF%20Volatility%20Surface%20Engine&amp;subtitle=Sub-millisecond%20Bayesian%20fusion%20of%20live%20futures%20micro-price%20shifts%20and%20asynchronous%20OPRA%20option%20ticks&amp;steps=1.%20Futures%20Predict%3A%3APropagate%20x_%7Bk%20k-1%7D%20%3D%20x_%7Bk-1%7D%20%2B%20B*dln%28F%29%20and%20P_%7Bk%20k-1%7D%20%3D%20P_%7Bk-1%7D%20%2B%20Q*dt%20on%20ES%20tick%7C2.%20Mahalanobis%20Gate%3A%3AReject%20spoof%2Fcrossed%20ticks%20where%20innovation%20d_M%5E2%20%3D%20nu%5ET%20*%20S%5E%28-1%29%20*%20nu%20%3E%2016.0%20%284-sigma%29%7C3.%20Joseph%20EKF%20Update%3A%3AUpdate%20state%20x_k%20and%20covariance%20P_k%20using%20numerically%20stable%20Joseph-form%20Riccati%20update%7C4.%20P%5E%28-1%29%20Cone%20Project%3A%3AProject%20posterior%20state%20onto%20eSSVI%20%2F%20Durrleman%20arbitrage-free%20polytope%20in%200.03%20ms&amp;metrics=TICK%20UPDATE%20TIME%3A%3A0.18%20ms%3A%3A34x%20Faster%20Than%20Batch%20SQP%7CFLICKER%20REDUCTION%3A%3A-78%25%20Vega%20Noise%3A%3ASmooth%20Parameter%20Paths%7COUTLIER%20GATE%3A%3A4.0%20Sigma%3A%3AChi-Square%20Innovation%20Filter%7CPOSTERIOR%20BANDS%3A%3A%2B-1%20SD%20Surface%3A%3AFeeds%20Quote%20Width%20Widening</image:loc>
      <image:title>Constrained Extended Kalman Filter intraday volatility surface update loop from ES futures and OPRA ticks</image:title>
      <image:caption>Kalman Filter State-Space Updates for Intraday Arbitrage-Free Volatility Grids — Constrained Extended Kalman Filter intraday volatility surface update loop from ES futures and OPRA ticks (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Intraday%20Surface%20Engine%20Benchmark%20Under%20Peak%20OPRA%20Tick%20Load&amp;subtitle=Evaluating%201-Second%20Batch%20Refit%2C%20EMA%20Smoothed%20Splines%2C%20Stateless%20Tick%20WLS%2C%20and%20Constrained%20EKF&amp;steps=1-Sec%20Timer%20Batch%3A%3ASuffers%20420%20ms%20average%20staleness%20during%20ES%20sweeps%2C%20exposing%20quotes%20to%20latency%20adverse%20selection%7CStateless%20100ms%20WLS%3A%3AEliminates%20lag%20but%20induces%20heavy%20wing%20parameter%20oscillation%20%28%2B%2F-0.18%20vol%20mark%20chatter%29%7CNaive%20EMA%20Parameter%20Avg%3A%3ADamps%20chatter%20at%20the%20cost%20of%20lagging%20real%20FOMC%20vol%20crushes%20and%20breaking%20calendar%20bounds%7CConstrained%20Spot-EKF%3A%3A0.18%20ms%20latency%2C%20-78%25%20mark%20chatter%2C%20instant%20ES%20beta%20lead%2C%20and%200%20arbitrage%20violations&amp;metrics=BATCH%20STALE%20LAG%3A%3A420%20ms%20Avg%3A%3AVulnerable%20on%20ES%20Sweeps%7CEKF%20LATENCY%3A%3A0.18%20ms%3A%3AIncremental%20Rank-m%20Update%7CADVERSE%20PICKOFF%3A%3A-64%25%20Reduction%3A%3AVia%20B*dS%20Spot-Vol%20Predict%7CSTANS%20ALIGNMENT%3A%3A20-Min%20Sync%3A%3AMatches%20OCC%20Risk%20Cadence</image:loc>
      <image:title>Comparison of surface update latency P&amp;L flicker and stale-quote pickoff losses across four intraday update engines</image:title>
      <image:caption>Kalman Filter State-Space Updates for Intraday Arbitrage-Free Volatility Grids — Comparison of surface update latency P&amp;L flicker and stale-quote pickoff losses across four intraday update engines (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/net-dealer-gamma-exposure-gex-flip-point-mechanics</loc>
    <lastmod>2026-11-14T20:58:52.572Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/net-dealer-gamma-exposure-gex-flip-point-mechanics-hero-2026.png</image:loc>
      <image:title>Net Dealer Gamma Exposure (GEX) Zero-Gamma Flip Points &amp; Volatility Regimes — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (0DTE Index Options, Dealer Gamma Pinning, Vanna &amp; Charm Rehedging): Mapping the zero-gamma flip boundary between mean-reverting pinning and short-gamma cascades.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Sticky-Delta%20Spot-Slide%20GEX%28S%29%20Flip-Strike%20Computation&amp;subtitle=Why%20evaluating%20GEX%20at%20current%20spot%20S_0%20fails%20without%20sliding%20spot%20and%20repricing%20skew%20jointly&amp;steps=1.%20Signed%20OI%20Matrix%3A%3AIngest%20OCC%20open%20interest%20%2B%20Cboe%20Open-Close%20signed%20dealer%20inventory%20across%20all%20expiries%7C2.%20Spot%20Grid%20S_j%3A%3Aconstruct%20101-point%20spot%20grid%20from%20-5.0%25%20to%20%2B5.0%25%20in%2010-bps%20SPX%20increments%7C3.%20Skew%20Beta%20Shift%3A%3AAdjust%20%CF%83%28K%2C%20T%20%20%20S_j%29%20along%20equity%20spot-vol%20beta%20%28-1.1%20vol%20per%20-1%25%20SPX%20drop%29%7C4.%20Root%20Solve%20S_flip%3A%3AInterpolate%20S_flip%20where%20%CE%A3%20N_dealer%20*%20%CE%93%28S_flip%2C%20%CF%83_shifted%29%20%3D%200&amp;metrics=LONG%20GEX%20IMPACT%3A%3A0.58x%20Shock%3A%3AAt%20%2B%2485M%2Fpt%20Dealer%20Gamma%7CSHORT%20GEX%20IMPACT%3A%3A2.18x%20Shock%3A%3AAt%20-%2465M%2Fpt%20Dealer%20Gamma%7CNAIVE%20OI%20ERROR%3A%3A45-90%20SPX%20Pts%3A%3AUnsigned%20Call%2FPut%20Bias%7CZOMMA%20SHIFT%3A%3A%2B18%20SPX%20Pts%3A%3ASticky-Delta%20vs%20Sticky-Strike</image:loc>
      <image:title>Spot-slide simulation workflow for locating the sticky-delta SPX zero-gamma flip strike</image:title>
      <image:caption>Net Dealer Gamma Exposure (GEX) Zero-Gamma Flip Points &amp; Volatility Regimes — Spot-slide simulation workflow for locating the sticky-delta SPX zero-gamma flip strike (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Empirical%20SPX%20Intraday%20Behavior%20Across%20Net%20Dealer%20GEX%20Quartiles&amp;subtitle=Observed%20RTH%20high-low%20range%20and%20500-lot%20CME%20ES%20execution%20slippage%20by%20morning%20GEX%20regime&amp;steps=Top%20Quartile%20%28%2BGEX%29%3A%3A0.54%25%20average%20RTH%20high-low%20range%3B%2068%25%20of%20morning%20gaps%20mean-revert%20toward%20top%20OI%20strike%7C2nd%20Quartile%20%28Mild%20%2B%29%3A%3A0.78%25%20average%20RTH%20range%3B%20steady%20afternoon%20Charm%20drift%20dominates%20quiet%20sessions%7C3rd%20Quartile%20%28Flip%29%3A%3A1.19%25%20average%20RTH%20range%3B%20intraday%20regime%20flips%20trigger%20sudden%2014%3A00%20ET%20trend%20breaks%7CBottom%20Quartile%20%28-GEX%29%3A%3A1.96%25%20average%20RTH%20range%3B%20ES%20top-of-book%20depth%20drops%2052%25%2C%20accelerating%20MOC%20trends&amp;metrics=%2BGEX%20HIGH-LOW%3A%3A0.54%25%20Avg%3A%3A68%25%20Morning%20Gap%20Fade%7C-GEX%20HIGH-LOW%3A%3A1.96%25%20Avg%3A%3A3.6x%20Wider%20Daily%20Range%7CES%20BOOK%20DEPTH%3A%3A-52%25%20Thinner%3A%3AIn%20Bottom%20GEX%20Quartile%7CREGULATORY%20OVERSIGHT%3A%3ACFTC%20%2B%20SEC%3A%3ACross-Market%20Surveillance</image:loc>
      <image:title>Realized intraday S&amp;P 500 range and ES order-book slippage across four net dealer gamma quartiles</image:title>
      <image:caption>Net Dealer Gamma Exposure (GEX) Zero-Gamma Flip Points &amp; Volatility Regimes — Realized intraday S&amp;P 500 range and ES order-book slippage across four net dealer gamma quartiles (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/intraday-0dte-spx-gamma-scalping-moc-imbalances</loc>
    <lastmod>2026-11-14T19:52:07.392Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/intraday-0dte-spx-gamma-scalping-moc-imbalances-hero-2026.png</image:loc>
      <image:title>Intraday 0DTE SPX Gamma Scalping vs 15:50 ET NYSE MOC Liquidity Collisions — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (0DTE Index Options, Dealer Gamma Pinning, Vanna &amp; Charm Rehedging): When multi-billion-dollar cash equity closing imbalances strike peak final-10-minute 0DTE gamma.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=15%3A45%E2%80%9316%3A00%20ET%20Closing%20Auction%20%26%200DTE%20Gamma%20Collision%20Sequence&amp;subtitle=How%20cash%20MOC%20imbalances%20propagate%20through%20index%20arbitrageurs%20into%20dealer%200DTE%20ES%20hedges&amp;steps=15%2045%20ET%20Pin%20Peak%3A%3AColor%20%28dGamma%2Fdt%29%20concentrates%200DTE%20ATM%20gamma%20into%20a%20%2B%2F-8%20pt%20SPX%20corridor%7C15%2050%2000%20ET%20MOC%20Feed%3A%3ANYSE%20d-Quote%20%26%20Nasdaq%20NOII%20publish%20net%20cash%20buy%2Fsell%20closing%20imbalance%20%28%24B%29%7C15%2050%2005%20ET%20Index%20Arb%3A%3AProgram%20desks%20lift%2Fhit%20CME%20ES%20futures%20against%20MOC%20baskets%20within%20milliseconds%7C15%2051-16%2000%20ET%20BTIC%3A%3A0DTE%20dealers%20chase%20Speed%2FGamma%20flips%20and%20lock%2016%3A00%20ET%20cash%20close%20via%20CME%20BTIC&amp;metrics=ATM%20STRADDLE%20%4015%2050%3A%3A~%246.92%3A%3AAt%2013.5%25%20IV%2C%20SPX%205%2C850%7CSTRADDLE%20GAMMA%3A%3A0.289%20%CE%94%2Fpt%3A%3A%24169k%20ES%20per%20SPX%20Point%7CMOC%20THRESHOLD%3A%3A%3E%20%242.5B%20Net%3A%3ABreaks%20Local%20Pin%20Zone%7CSETTLEMENT%20BASIS%3A%3A0.00%20Pts%3A%3AVia%20CME%20ES%20BTIC%20Lock</image:loc>
      <image:title>Minute-by-minute timeline from 15:45 ET gamma concentration to 15:50 ET MOC release and 16:00 ET BTIC settlement</image:title>
      <image:caption>Intraday 0DTE SPX Gamma Scalping vs 15:50 ET NYSE MOC Liquidity Collisions — Minute-by-minute timeline from 15:45 ET gamma concentration to 15:50 ET MOC release and 16:00 ET BTIC settlement (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=15%3A50%E2%80%9316%3A00%20ET%20S%26P%20500%20Move%20by%20MOC%20Imbalance%20%26%200DTE%20Gamma%20Regime&amp;subtitle=Absolute%2010-minute%20closing%20SPX%20point%20displacement%20across%20four%20joint%20liquidity%20states&amp;steps=Small%20MOC%20%2B%20Long%20GEX%3A%3A2.4%20SPX%20pts%20average%20move%3B%20tight%20magnetic%20pin%20around%205%2C800%2F5%2C850%2F5%2C900%20round%20strikes%7CLarge%20MOC%20%2B%20Long%20GEX%3A%3A6.8%20SPX%20pts%20average%20move%3B%20dealer%20counter-flow%20absorbs%20%3E60%25%20of%20cash%20auction%20shock%7CSmall%20MOC%20%2B%20Short%20GEX%3A%3A7.9%20SPX%20pts%20average%20move%3B%20endogenous%20stop%20runs%20around%20expiring%20iron%20condor%20wings%7CLarge%20MOC%20%2B%20Short%20GEX%3A%3A19.4%20SPX%20pts%20average%20move%3B%20cash%20index%20arb%20%2B%20short-gamma%20chasing%20reinforce%20one-way&amp;metrics=PINNED%20CLOSE%3A%3A2.4%20Pts%20Avg%3A%3ABalanced%20MOC%20%2B%20Long%20GEX%7CSQUEEZE%20CLOSE%3A%3A19.4%20Pts%20Avg%3A%3ALarge%20MOC%20%2B%20Short%20GEX%7CSCALP%20EDGE%3A%3A%2B3.6x%20Convexity%3A%3ALong%2015%3A45%20ATM%20Straddle%7CREGULATORY%20FEED%3A%3ASEC%20%2F%20NYSE%3A%3A15%3A50%3A00%20ET%20Rulebook%20Cut</image:loc>
      <image:title>Average absolute 15:50 to 16:00 ET SPX point move conditioned on MOC size and dealer gamma sign</image:title>
      <image:caption>Intraday 0DTE SPX Gamma Scalping vs 15:50 ET NYSE MOC Liquidity Collisions — Average absolute 15:50 to 16:00 ET SPX point move conditioned on MOC size and dealer gamma sign (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vanna-ddelta-dvol-rally-fuel-cpi-fomc-vol-crush</loc>
    <lastmod>2026-11-14T19:52:09.119Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vanna-ddelta-dvol-rally-fuel-cpi-fomc-vol-crush-hero-2026.png</image:loc>
      <image:title>Vanna (∂Δ/∂σ) Mechanical Equity Rallies After CPI &amp; FOMC Volatility Crushes — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (0DTE Index Options, Dealer Gamma Pinning, Vanna &amp; Charm Rehedging): Why post-event implied volatility crushes force dealers to buy back billions in short ES hedges.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Pre-Event%20Hedge%20Accumulation%20to%20Post-Print%20Vanna%20Rally&amp;subtitle=How%20institutional%20downside%20put%20demand%20primes%20a%20mechanical%20CME%20ES%20buying%20cascade%20once%20IV%20crushes&amp;steps=T-48h%20Hedge%20Bid%3A%3AMacro%20funds%20buy%205d-30d%20SPX%20puts%3B%20VIX1D%20jumps%20to%2026%2B%20and%20dealers%20sell%20ES%20to%20hedge%7CEvent%20Print%20Clears%3A%3A08%3A30%20CPI%20or%2014%3A00%20FOMC%20avoids%202-sigma%20tail%3B%20binary%20event%20variance%20drops%20out%20of%20surface%7CSurface%20IV%20Crush%3A%3AFront-month%20SPX%20IV%20drops%203-5%20pts%3B%2025d%20put%20deltas%20contract%20from%20-0.25%20toward%20-0.16%7CMechanical%20ES%20Bid%3A%3ADealers%20buy%20back%20%242B-%245B%20of%20excess%20short%20ES%20hedges%2C%20lifting%20spot%20and%20crushing%20IV%20further!&amp;metrics=PRE-EVENT%20VIX1D%3A%3A24-32%20Vol%3A%3ALoaded%20Event%20Variance%7CPOST-PRINT%20VIX1D%3A%3A11-14%20Vol%3A%3A-50%25%20Instant%20Vol%20Crush%7CSINGLE-STRIKE%20BUY%3A%3A%2B%24811M%20ES%3A%3AWorked%205%2C700%20Put%20Unwind%7CFEEDBACK%20LOOP%3A%3ASpot%20Up%20-%3E%20IV%20Down%3A%3ASelf-Reinforcing%20Squeeze</image:loc>
      <image:title>Four-stage lifecycle of a macro event hedge buildup and post-announcement Vanna futures squeeze</image:title>
      <image:caption>Vanna (∂Δ/∂σ) Mechanical Equity Rallies After CPI &amp; FOMC Volatility Crushes — Four-stage lifecycle of a macro event hedge buildup and post-announcement Vanna futures squeeze (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Post-CPI%20%2F%20FOMC%20Dealer%20Vanna%20ES%20Flow%20Across%20Event%20Outcomes&amp;subtitle=Estimated%2060-minute%20mechanical%20ES%20futures%20flow%20for%20a%20%2445B%20vega-notional%20SPX%20skew%20book&amp;steps=Benign%20%2F%20In-Line%20Print%3A%3A-4.2v%20front%20IV%20crush%20unleashes%20%2B%243.9B%20ES%20Vanna%20buying%20across%20both%20short%20puts%20%26%20long%20calls%7CMild%20Hawkish%20%28%3C1%20SD%29%3A%3ASpot%20dips%20-0.4%25%20then%20IV%20drops%20-3.1v%3B%20%2B%242.6B%20Vanna%20bid%20reverses%20initial%20dip%20into%20green%7C1.5%20SD%20Upside%20Beat%3A%3ASpot%20gaps%20up%20%2B1.3%25%20%2B%20IV%20drops%20-5.0v%3B%20Vanna%20%2B%20Gamma%20combine%20for%20%2B%245.1B%20rally%20extension%7C%3E2.2%20SD%20Inflation%20Shock%3A%3ASpot%20breaks%20implied%20move%3B%20IV%20RISES%20%2B2.8v%2C%20flipping%20Vanna%20into%20-%242.9B%20ES%20selling!&amp;metrics=IN-LINE%20BENIGN%3A%3A%2B%243.9B%20Buy%3A%3AClassic%20Vanna%20Melt-Up%7CMILD%20HAWKISH%3A%3A%2B%242.6B%20Buy%3A%3AExplains%20Dip-and-Rip%7C%3E2.2%20SD%20TAIL%20SHOCK%3A%3A-%242.9B%20Sell%3A%3AVol%20Spike%20Reverses%20Vanna%7CEXECUTION%20VENUE%3A%3ACME%20Globex%20ES%3A%3AVia%20CFTC-Regulated%20FCMs</image:loc>
      <image:title>Net dealer CME ES Vanna flow in billions of dollars across four post-event macro scenarios</image:title>
      <image:caption>Vanna (∂Δ/∂σ) Mechanical Equity Rallies After CPI &amp; FOMC Volatility Crushes — Net dealer CME ES Vanna flow in billions of dollars across four post-event macro scenarios (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/charm-ddelta-dtime-intraday-weekend-opex-drift</loc>
    <lastmod>2026-11-14T19:52:09.229Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/charm-ddelta-dtime-intraday-weekend-opex-drift-hero-2026.png</image:loc>
      <image:title>Charm (∂Δ/∂t) Time-Bleed Mechanics: Intraday, Weekend &amp; OPEX Equity Drift — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (0DTE Index Options, Dealer Gamma Pinning, Vanna &amp; Charm Rehedging): Deterministic delta bleed over time: the silent clock behind midday index grinds.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
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      <image:title>Hour-by-hour progression of OTM 0DTE put delta decay and cumulative dealer ES Charm buying</image:title>
      <image:caption>Charm (∂Δ/∂t) Time-Bleed Mechanics: Intraday, Weekend &amp; OPEX Equity Drift — Hour-by-hour progression of OTM 0DTE put delta decay and cumulative dealer ES Charm buying (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Hourly%20Charm%20Intensity%20Across%20Option%20Tenors%20%2825-Delta%20SPX%20Put%29&amp;subtitle=CME%20ES%20contracts%20unwound%20per%20hour%20per%2010%2C000%20dealer-short%2025-delta%20SPX%20puts%20at%20flat%20spot&amp;steps=0DTE%20%283%20Hrs%20Left%29%3A%3A71.4%20ES%20contracts%2Fhr%20unwound%20per%2010k%20puts%3B%20peak%20midday%20clock%20sensitivity%7C2-DTE%20Weekly%3A%3A8.9%20ES%20contracts%2Fhr%20unwound%3B%20steady%20multi-session%20bleed%20into%20Wednesday%2FFriday%7C7-DTE%20Weekly%3A%3A2.6%20ES%20contracts%2Fhr%20unwound%3B%20secondary%20contributor%20unless%20open%20interest%20%3E250k%7C30-DTE%20Monthly%3A%3A0.6%20ES%20contracts%2Fhr%20unwound%3B%20Vanna%20dominates%2030-DTE%20while%20Charm%20is%20negligible&amp;metrics=0DTE%20CHARM%20RATE%3A%3A71.4%20ES%20%2F%20Hr%3A%3APer%2010k%2025d%20SPX%20Puts%7C2DTE%20CHARM%20RATE%3A%3A8.9%20ES%20%2F%20Hr%3A%3A8x%20Slower%20Than%200DTE%7C30DTE%20CHARM%20RATE%3A%3A0.6%20ES%20%2F%20Hr%3A%3A119x%20Slower%20Than%200DTE%7CVARIANCE%20CLOCK%3A%3AWeighted%20RTH%3A%3ASee%20Variance-Clock%20Note</image:loc>
      <image:title>Hourly Charm delta decay per 1000 contracts across 0DTE 2DTE 7DTE and 30DTE 25-delta SPX puts</image:title>
      <image:caption>Charm (∂Δ/∂t) Time-Bleed Mechanics: Intraday, Weekend &amp; OPEX Equity Drift — Hourly Charm delta decay per 1000 contracts across 0DTE 2DTE 7DTE and 30DTE 25-delta SPX puts (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vomma-volga-wing-convexity-short-strangle-blowups</loc>
    <lastmod>2026-11-14T19:46:36.087Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vomma-volga-wing-convexity-short-strangle-blowups-hero-2026.png</image:loc>
      <image:title>Vomma (Volga, ∂2V/∂σ2) Wing Convexity: Why Short 5-Delta Strangles Blow Up — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (0DTE Index Options, Dealer Gamma Pinning, Vanna &amp; Charm Rehedging): Why &quot;vega-neutral&quot; short wing ratios detonate under vol-of-vol shocks.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Anatomy%20of%20a%20Short-Wing%20Vomma%20Liquidation%20Cascade&amp;subtitle=How%20vol-of-vol%20shocks%20multiply%20short-wing%20Vega%205x%20and%20trigger%20forced%20buybacks%20at%20peak%20IV&amp;steps=1.%20Calm%20Entry%3A%3AFund%20sells%205d-8d%20OTM%20SPX%20puts%20at%20%242.10%3B%20initial%20Vega%20is%20tiny%20%28%241.96%2Fpt%29%2C%20margin%20looks%20low%7C2.%20VVIX%20Shock%3A%3ASPX%20drops%20-2.8%25%20while%20put%20wing%20IV%20jumps%20%2B14%20pts%3B%20d1*d2%20shrinks%20toward%201.0%20SD%7C3.%20Vega%20Explosion%3A%3ANegative%20Vomma%20expands%20short-put%20Vega%204.8x%3B%20option%20mark%20balloons%20from%20%242.10%20to%20%2421.40%7C4.%20Forced%20Buyback%3A%3AFINRA%204210%20TIMS%20%2F%20OCC%20STANS%20margin%20breaches%20force%20account%20to%20buy%20back%20wings%20at%20top%20IV!&amp;metrics=INITIAL%20NET%20VEGA%3A%3A%240.00%20%28Flat%29%3A%3ALocal%20Linear%20Illusion%7CSTRESSED%20NET%20VEGA%3A%3A-%2422.40%20%2F%20pt%3A%3AAfter%20%2B14v%20Vol%20Shock%7CWING%20MARK%20JUMP%3A%3A10.2x%20Entry%3A%3AStill%20380%20Pts%20OTM!%7CMARGIN%20REGIME%3A%3AFINRA%204210%3A%3ATIMS%20Stressed%20Vol%20Grid</image:loc>
      <image:title>Cascade mechanism of a short 5-delta strangle blowup driven by Vomma vega expansion and TIMS margin calls</image:title>
      <image:caption>Vomma (Volga, ∂2V/∂σ2) Wing Convexity: Why Short 5-Delta Strangles Blow Up — Cascade mechanism of a short 5-delta strangle blowup driven by Vomma vega expansion and TIMS margin calls (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Black-Scholes%20Dollar%20Vomma%20Distribution%20Across%20Moneyness&amp;subtitle=Relative%20%E2%88%82%C2%B2V%2F%E2%88%82%CF%83%C2%B2%20convexity%20per%20contract%20from%2050-delta%20ATM%20to%202-delta%20deep%20tail%20strikes&amp;steps=50-Delta%20ATM%3A%3AVomma%20%E2%89%88%20-0.02%20%28near%20zero%29%3B%20pure%20linear%20Vega%20exposure%20regardless%20of%20vol%20level%7C25-Delta%20Wing%3A%3AVomma%20%3D%20%2B0.44x%20peak%3B%20peak%20Vanna%20zone%20where%20spot-vol%20cross-hedging%20dominates%7C10-Delta%20Wing%3A%3AVomma%20%3D%20%2B1.00x%20peak%20%28%20d%20%20%E2%89%88%201.41%20SD%29%3B%20maximum%20dollar%20vol-of-vol%20convexity!%7C2-Delta%20Deep%20Tail%3A%3ADollar%20Vomma%20tapers%20to%20%2B0.31x%20peak%2C%20but%20percentage%20Vomma%2FPremium%20exceeds%2025x!&amp;metrics=50d%20ATM%20VOMMA%3A%3A0.00x%20Peak%3A%3ALinear%20Vega%20Benchmark%7C25d%20WING%20VOMMA%3A%3A0.44x%20Peak%3A%3AHigh%20Vanna%20%2F%20Moderate%20Vomma%7C10d%20WING%20VOMMA%3A%3A1.00x%20Peak%3A%3AGlobal%20Dollar%20Maximum%7C2d%20TAIL%20MULTIPLE%3A%3A25x%20Premium%3A%3ALotto%20Tail%20Convexity</image:loc>
      <image:title>Normalized Black-Scholes Vomma profile across option deltas from 50-delta ATM out to 2-delta wings</image:title>
      <image:caption>Vomma (Volga, ∂2V/∂σ2) Wing Convexity: Why Short 5-Delta Strangles Blow Up — Normalized Black-Scholes Vomma profile across option deltas from 50-delta ATM out to 2-delta wings (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/speed-dgamma-dspot-0dte-iron-condor-pin-cliffs</loc>
    <lastmod>2026-11-14T19:46:31.877Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/speed-dgamma-dspot-0dte-iron-condor-pin-cliffs-hero-2026.png</image:loc>
      <image:title>Speed (∂Γ/∂S) Third-Order Gamma Gradients &amp; 0DTE Iron Condor Strike Cliffs — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (0DTE Index Options, Dealer Gamma Pinning, Vanna &amp; Charm Rehedging): Why 0DTE gamma walls vanish and invert across a 10-point SPX spread width.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Anatomy%20of%20a%20Dealer%200DTE%20Condor%20Wing%20Breakout%20via%20Speed&amp;subtitle=How%20dealer%20hedging%20flips%20from%20resistance%20pinning%20at%205%2C865%20to%20breakout%20chasing%20above%205%2C873&amp;steps=5%2C855%20Inside%20Range%3A%3ARetail%20sold%205%2C865%2F5%2C880%20call%20spread%3B%20dealers%20are%20LONG%205%2C865%20call%20%28%2BGamma%20pin%20zone%29%7C5%2C865%20Resistance%3A%3ADealer%20%2BGamma%20peaks%20right%20at%205%2C865%3B%20ES%20selling%20stalls%20initial%20rally%20attempts%7C5%2C872.5%20Midpoint%3A%3ANegative%20Speed%20erodes%20%2BGamma%20to%20ZERO!%20Stabilizing%20dealer%20ES%20selling%20stops%20abruptly%7C5%2C878%20Acceleration%3A%3ADealer%20short%205%2C880%20call%20dominates%20%28-Gamma%29%3B%20dealers%20BUY%20ES%2C%20fueling%20breakout%20through%205%2C880!&amp;metrics=14%2030%201-SD%20WIDTH%3A%3A%C2%B111.5%20SPX%20Pts%3A%3AAt%2013%25%20IV%2C%201.5%20Hrs%20Left%7CDEALER%20%2BGEX%20PEAK%3A%3A5%2C865%20Strike%3A%3ALong%20Inner%20Condor%20Leg%7CSPEED%20ZERO%20FLIP%3A%3A5%2C872.5%20SPX%3A%3AMidpoint%20of%2065%2F80%20Wing%7CDEALER%20-GEX%20PEAK%3A%3A5%2C880%20Strike%3A%3AShort%20Outer%20Wing%20Leg</image:loc>
      <image:title>Spatial progression of dealer gamma and Speed across a 0DTE retail iron condor call wing</image:title>
      <image:caption>Speed (∂Γ/∂S) Third-Order Gamma Gradients &amp; 0DTE Iron Condor Strike Cliffs — Spatial progression of dealer gamma and Speed across a 0DTE retail iron condor call wing (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Explosion%20of%20Peak%20Black-Scholes%20Speed%20as%20Expiration%20Approaches&amp;subtitle=Relative%20%7C%E2%88%82%CE%93%2F%E2%88%82S%7C%20magnitude%20at%20%C2%B11%20SD%20inflection%20point%20across%20four%20SPX%20option%20tenors%20%28%CF%83%20%3D%2014%25%29&amp;steps=30-DTE%20Monthly%3A%3A1.0x%20baseline%20Speed%3B%20smooth%20gamma%20curve%20allows%20hourly%20discrete%20delta%20rebalancing%7C5-DTE%20Weekly%3A%3A6.0x%20baseline%20Speed%3B%20noticeable%20strike%20acceleration%20during%20CPI%2FFOMC%20sessions%7C0DTE%20%40%2010%2000%20ET%3A%3A31.5x%20baseline%20Speed%3B%20morning%20gamma%20flips%20across%2025-pt%20SPX%20corridors%7C0DTE%20%40%2015%2000%20ET%3A%3A189.0x%20baseline%20Speed!%20Gamma%20sign%20inverts%20completely%20across%20a%2010-pt%20vertical%20spread&amp;metrics=30-DTE%20BASELINE%3A%3A1.0x%20Speed%3A%3AGentle%20Spatial%20Slope%7C0DTE%20MORNING%3A%3A31.5x%20Speed%3A%3A6%20Hours%20Remaining%7C0DTE%2015%2000%20ET%3A%3A189.0x%20Speed%3A%3A1%20Hour%20Remaining%7CCLEARING%20MONITOR%3A%3AOCC%2020-Min%3A%3ACatches%20Cliff%20Flips</image:loc>
      <image:title>Peak Speed magnitude in gamma-per-point-squared across 30DTE 5DTE 1DTE and final-hour 0DTE SPX options</image:title>
      <image:caption>Speed (∂Γ/∂S) Third-Order Gamma Gradients &amp; 0DTE Iron Condor Strike Cliffs — Peak Speed magnitude in gamma-per-point-squared across 30DTE 5DTE 1DTE and final-hour 0DTE SPX options (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/zomma-dgamma-dvol-dealer-gamma-profile-shifts</loc>
    <lastmod>2026-11-15T06:47:48.812Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/zomma-dgamma-dvol-dealer-gamma-profile-shifts-hero-2026.png</image:loc>
      <image:title>Zomma (∂Γ/∂σ) Mechanics: How Implied Volatility Shocks Mutate Dealer Gamma — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (0DTE Index Options, Dealer Gamma Pinning, Vanna &amp; Charm Rehedging): Conservation of gamma area: why vol spikes melt ATM pins and awaken tail short-gamma.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Intraday%20Zero-Gamma%20Flip%20Migration%20Under%20a%20%2B10v%20Zomma%20Shock&amp;subtitle=How%20parallel%20volatility%20expansion%20melts%20ATM%20positive%20pins%20and%20activates%20OTM%20short-put%20gamma&amp;steps=1.%20Low-Vol%20Morning%3A%3AVIX1D%20%3D%2011%25%3B%20narrow%20Gaussian%20bell%20concentrates%20%2B%243.8B%20dealer%20GEX%20right%20at%205%2C850%20ATM%7C2.%20Headline%20Vol%20Jump%3A%3AMacro%20shock%20doubles%20VIX1D%20to%2022%25%3B%20d1%20and%20d2%20compress%20by%2050%25%20across%20every%20strike%7C3.%20ATM%20Zomma%20Crush%3A%3ANegative%20ATM%20Zomma%20%28-Gamma%2Fsigma%29%20slashes%205%2C850%20stabilizing%20gamma%20peak%20by%2050%25%7C4.%20Wing%20Zomma%20Wakeup%3A%3APositive%20wing%20Zomma%20inflates%205%2C770%20short-put%20gamma%204.1x%2C%20pulling%20S_flip%20ABOVE%205%2C850!&amp;metrics=ATM%20GAMMA%20CHANGE%3A%3A-50%25%20Drop%3A%3AWhen%20IV%20Doubles%2011%25%E2%86%9222%25%7C2-SD%20PUT%20GAMMA%3A%3A%2B310%25%20Surge%3A%3ADormant%20Short%20Puts%20Wake%7CS_FLIP%20MIGRATION%3A%3A%2B48%20SPX%20Pts%3A%3AFlip%20Rises%20Above%20Spot!%7CVEGA%20SHADOW%20GAMMA%3A%3A%E2%88%82%C2%B2Vega%20%2F%20%E2%88%82S%C2%B2%3A%3AIdentical%20to%20Zomma</image:loc>
      <image:title>Four-step mechanism showing how an intraday VIX1D spike mutates the dealer GEX curve via Zomma</image:title>
      <image:caption>Zomma (∂Γ/∂σ) Mechanics: How Implied Volatility Shocks Mutate Dealer Gamma — Four-step mechanism showing how an intraday VIX1D spike mutates the dealer GEX curve via Zomma (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Black-Scholes%20Zomma%20Profile%20Across%20Standardized%20Moneyness%20%7Cd%E2%82%81%7C&amp;subtitle=Normalized%20%E2%88%82%CE%93%2F%E2%88%82%CF%83%20change%20per%20%2B1.0%20vol%20point%20shock%20from%200.0%20SD%20ATM%20out%20to%202.5%20SD%20wings&amp;steps=0.0%20SD%20%28Exact%20ATM%29%3A%3AZomma%20%3D%20-1.00x%20trough%3B%20maximum%20loss%20of%20ATM%20gamma%20height%20when%20implied%20vol%20rises%7C1.0%20SD%20%28~16-Delta%29%3A%3AZomma%20%E2%89%88%200.00%20crossover!%20d1%20*%20d2%20%E2%89%88%201%20leaves%2016-delta%20gamma%20temporarily%20invariant%20to%20IV%7C1.58%20SD%20%28~6-Delta%29%3A%3AZomma%20%3D%20%2B0.45x%20positive%20peak!%20Maximum%20awakening%20of%20outer%20short-wing%20gamma%20on%20vol%20spikes%7C2.5%20SD%20%28%3C1-Delta%29%3A%3ADollar%20Zomma%20tapers%20to%20%2B0.16x%2C%20though%20percentage%20gamma%20jump%20exceeds%20%2B400%25%20on%20%2B8v%20shock&amp;metrics=ATM%20TROUGH%3A%3A-%CE%93%20%2F%20%CF%83%3A%3AAt%20d1%20*%20d2%20%3D%200%7CZERO%20CROSSING%3A%3Ad%E2%82%81%20%20%E2%89%88%201.0%20SD%3A%3AInvariant%20~16d%20Strike%7CWING%20POSITIVE%20PEAK%3A%3Ad%E2%82%81%20%20%E2%89%88%201.58%20SD%3A%3A~6-Delta%20Tail%20Awakening%7CSUPERVISION%3A%3ASEC%20%2F%20OCC%3A%3AJoint%20Spot-Vol%20Stress</image:loc>
      <image:title>Zomma sensitivity across moneyness showing negative ATM trough and positive 1.6-SD wing peaks</image:title>
      <image:caption>Zomma (∂Γ/∂σ) Mechanics: How Implied Volatility Shocks Mutate Dealer Gamma — Zomma sensitivity across moneyness showing negative ATM trough and positive 1.6-SD wing peaks (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/color-dgamma-dtime-final-hour-0dte-pin-risk</loc>
    <lastmod>2026-11-15T06:40:58.515Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/color-dgamma-dtime-final-hour-0dte-pin-risk-hero-2026.png</image:loc>
      <image:title>Color (∂Γ/∂t) Gamma Decay vs Final-Hour 0DTE ATM Pin Risk Before 16:00 ET — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (0DTE Index Options, Dealer Gamma Pinning, Vanna &amp; Charm Rehedging): How the final 90 minutes sharpen ATM gamma toward a Dirac delta pin while starving wings.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
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      <image:title>Progression of 0DTE gamma bell curve from broad morning coverage to razor-sharp 15:55 ET pin</image:title>
      <image:caption>Color (∂Γ/∂t) Gamma Decay vs Final-Hour 0DTE ATM Pin Risk Before 16:00 ET — Progression of 0DTE gamma bell curve from broad morning coverage to razor-sharp 15:55 ET pin (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=15%3A00%20ET%20SPX%200DTE%20Color%20Profile%20by%20Distance%20from%20Spot%20%285%2C850%29&amp;subtitle=Instantaneous%20rate%20of%20gamma%20change%20%E2%88%82%CE%93%2F%E2%88%82t%20as%20SPX%20enters%20the%20final%2060%20minutes%20%28%CF%83%20%3D%2013%25%29&amp;steps=5%2C850%20Exact%20ATM%3A%3AExtreme%20positive%20Color%20%28%2B100%25%20gamma%20gain%20over%20next%2045%20mins%29%3B%20magnetic%20strike%20pin%7C5%2C855%20%28%2B5%20Pts%20OTM%29%3A%3AInside%201-SD%20%28%C2%B19.4%20pts%29%3A%20positive%20Color%20initially%2C%20then%20flips%20negative%20at%2015%3A42%20ET!%7C5%2C865%20%28%2B15%20Pts%20OTM%29%3A%3A1.6%20SD%20OTM%3A%20deep%20negative%20Color%20drains%2084%25%20of%20remaining%20strike%20gamma%20by%2015%3A30%20ET%7C5%2C880%20%28%2B30%20Pts%20OTM%29%3A%3A3.2%20SD%20OTM%3A%20strike%20gamma%20already%20~0.00%3B%20dead%20lotto%20ticket%20unless%2015%3A50%20MOC%20shocks&amp;metrics=ATM%20COLOR%3A%3AMax%20Positive%3A%3AMagnetic%20Pin%20Sharpens%7C%2B5%20PT%20FLIP%20TIME%3A%3A15%3A42%20ET%3A%3AFalls%20Outside%20Shrinking%201-SD%7C%2B15%20PT%20BLEED%3A%3A-84%25%20Gamma%3A%3ABetween%2015%3A00%20%26%2015%3A30%20ET%7CREGULATORY%20RULE%3A%3AFINRA%20RN%2021-15%3A%3AExpiration%20Pin%20Controls</image:loc>
      <image:title>Hourly Color rate of gamma change across ATM 5-pt OTM 15-pt OTM and 30-pt OTM strikes at 15:00 ET</image:title>
      <image:caption>Color (∂Γ/∂t) Gamma Decay vs Final-Hour 0DTE ATM Pin Risk Before 16:00 ET — Hourly Color rate of gamma change across ATM 5-pt OTM 15-pt OTM and 30-pt OTM strikes at 15:00 ET (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/jpm-hedged-equity-heqt-quarterly-collar-pinning</loc>
    <lastmod>2026-11-15T00:01:21.329Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/jpm-hedged-equity-heqt-quarterly-collar-pinning-hero-2026.png</image:loc>
      <image:title>Institutional Quarterly Equity Collar Rolls (JPM HEQT) &amp; Strike Pinning — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (0DTE Index Options, Dealer Gamma Pinning, Vanna &amp; Charm Rehedging): How $16B+ zero-cost SPX 95/80/Call collars build the single largest single-strike gamma magnet.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Quarterly%20Institutional%20Collar%20Lifecycle%20%26%20Dealer%20Gamma%20Pinning&amp;subtitle=How%20dealer%20long-call%20inventory%20at%20K_C*%20dampens%20SPX%20rallies%20and%20unpins%20on%20quarter-end%20roll%20day&amp;steps=Quarter-Start%20Roll%3A%3AFund%20sells%20~42k%20K_C*%20calls%20%2B%2042k%2080%25%20puts%2C%20buys%2042k%2095%25%20puts%20via%20Cboe%20SPX%20auction%7CMid-Quarter%20Rally%3A%3AIf%20SPX%20rallies%20%2B3.8%25%20toward%20K_C*%2C%20dealer%20long-call%20gamma%20swells%20above%20%2B%245B%20per%201%25%20move%7CFinal-Week%20Magnet%3A%3AColor%20sharpens%20K_C*%20gamma%3B%20dealers%20sell%20ES%20on%20every%20push%20above%20K_C*%20and%20buy%20every%20dip%7C14%2000%20ET%20Roll%20Day%3A%3AExpiring%20ITM%2FATM%20collar%20is%20rolled%20to%20next%20quarter%3B%20massive%20K_C*%20gamma%20pin%20releases!&amp;metrics=TYPICAL%20CALL%20CAP%3A%3A%2B3.8%25%20to%20%2B5.4%25%3A%3ABoosted%20by%20High%20SOFR%7CSINGLE-STRIKE%20OI%3A%3A38k-50k%20SPX%3A%3A~%2425B%2B%20Strike%20Notional%7CPIN%20GAMMA%20%40%20T-3d%3A%3A%2B%245.6B%20%2F%201%25%3A%3AWhen%20SPX%20Within%20%C2%B10.5%25%7CDISCLOSURE%20REGIME%3A%3ASEC%20N-PORT%3A%3APublic%20Holdings%20Filings</image:loc>
      <image:title>Four-stage lifecycle of the quarterly JPMorgan SPX collar from roll execution to final-week strike pinning</image:title>
      <image:caption>Institutional Quarterly Equity Collar Rolls (JPM HEQT) &amp; Strike Pinning — Four-stage lifecycle of the quarterly JPMorgan SPX collar from roll execution to final-week strike pinning (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Quarterly%20Zero-Cost%20Collar%20Call%20Cap%20Distance%20Across%20Rate%20%26%20Skew%20Regimes&amp;subtitle=Solved%20OTM%20call%20strike%20percentage%20above%20SPX%20spot%20to%20finance%20a%2095%25%2F80%25%20quarterly%20put%20spread&amp;steps=ZIRP%20%2B%20Steep%20Skew%20%282020%29%3A%3Ar%20%3D%200.10%25%2C%20steep%20put%20skew%20forced%20call%20cap%20down%20to%20just%20%2B2.6%25%20OTM%3B%20frequent%20ITM%20caps%7CRising%20Rates%20%282022%29%3A%3Ar%20%3D%203.00%25%2C%20elevated%20VIX%2026%20priced%20wide%20put%20debit%3B%20call%20cap%20settled%20around%20%2B3.7%25%20OTM%7CHigh%20SOFR%20%2B%20Low%20Skew%3A%3Ar%20%3D%205.25%25%2C%20flat%20skew%20pushed%20zero-cost%20call%20cap%20out%20to%20%2B5.3%25%20OTM%20%28%2B310%20SPX%20pts%29%7CCurrent%202026%20Regime%3A%3Ar%20%3D%204.35%25%2C%20balanced%20skew%20yields%20%2B4.4%25%20to%20%2B4.8%25%20quarterly%20upside%20call%20magnet&amp;metrics=ZIRP%20CALL%20CAP%3A%3A%2B2.6%25%20OTM%3A%3AHeavy%20Forward%20Drag%7CPEAK%20SOFR%20CAP%3A%3A%2B5.3%25%20OTM%3A%3A%2B100%20bps%20Forward%20Lift%7C2026%20CALL%20CAP%3A%3A~%2B4.5%25%20OTM%3A%3ACurrent%20Roll%20Benchmark%7CEXECUTION%20VENUE%3A%3ACboe%20SPX%3A%3AEuropean%20Cash-Settled</image:loc>
      <image:title>Impact of SOFR interest rates and put-call skew on quarterly zero-cost SPX collar call strike distance</image:title>
      <image:caption>Institutional Quarterly Equity Collar Rolls (JPM HEQT) &amp; Strike Pinning — Impact of SOFR interest rates and put-call skew on quarterly zero-cost SPX collar call strike distance (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/nasdaq-100-ndx-vs-spx-0dte-gamma-liquidity-spread</loc>
    <lastmod>2026-11-14T19:47:17.643Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/nasdaq-100-ndx-vs-spx-0dte-gamma-liquidity-spread-hero-2026.png</image:loc>
      <image:title>Nasdaq-100 (NDX &amp; QQQ) vs S&amp;P 500 (SPX) 0DTE Gamma Pinning &amp; Vol Spreads — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (0DTE Index Options, Dealer Gamma Pinning, Vanna &amp; Charm Rehedging): Why thinner CME NQ book depth and $2M+ NDX notional amplify tech gamma whipsaws.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Microstructure%20Divergence%3A%20SPX%2FES%20vs%20NDX%2FQQQ%2FNQ%200DTE%20Ecosystems&amp;subtitle=How%20retail%20QQQ%20fragmentation%20and%20thin%20CME%20NQ%20top-of-book%20depth%20amplify%20tech%20gamma%20cascades&amp;steps=1.%20Retail%20Option%20Entry%3A%3ASPX%20captures%20cash-settled%20flow%20directly%3B%20%242.08M%20NDX%20size%20pushes%20retail%20into%20physical%20QQQ%7C2.%20Dealer%20Aggregation%3A%3AMarket%20makers%20unify%20Nasdaq%20NDX%20%2B%20QQQ%20%2B%20TQQQ%20option%20deltas%20into%20one%20net%20tech%20book%7C3.%20CME%20NQ%20Execution%3A%3ADealers%20route%20delta%20hedges%20into%20CME%20NQ%20where%20top-of-book%20depth%20is%20~78%25%20thinner%20than%20ES%7C4.%20Feedback%20Cascade%3A%3AHigh%20%CE%BB_NQ%20magnifies%20short-gamma%20NQ%20sweeps%20and%20spills%20back%20into%20SPX%20via%20Mag-7%20weights!&amp;metrics=IMPLIED%20RATIO%3A%3A1.24x%20-%201.34x%3A%3AEquilibrium%20VXN%20%2F%20VIX%7CQQQ%20SHARE%20OF%20TECH%3A%3A~64%25%20Notional%3A%3APhysical%20ETF%20Dominance%7C1%20NQ%20NOTIONAL%3A%3A%24416%2C000%3A%3AAt%20NQ%20%3D%2020%2C800%20%28%2420%20Mult%29%7CPIN%20CUTOFF%20RISK%3A%3A15%3A40%20ET%20QQQ%3A%3APre-Close%20Physical%20Unwind</image:loc>
      <image:title>Comparison of order-flow routing and futures hedging impact between SPX/ES and NDX/QQQ/NQ ecosystems</image:title>
      <image:caption>Nasdaq-100 (NDX &amp; QQQ) vs S&amp;P 500 (SPX) 0DTE Gamma Pinning &amp; Vol Spreads — Comparison of order-flow routing and futures hedging impact between SPX/ES and NDX/QQQ/NQ ecosystems (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=0DTE%20NDX-Minus-SPX%20Straddle%20Switch%20Performance%20by%20Spread%20Percentile&amp;subtitle=Average%20intraday%20vol-point%20P%26L%20of%20gamma-neutral%20NDX%20vs%20SPX%200DTE%20straddle%20pairs&amp;steps=VXN%2FVIX%20%3C%201.18x%20%2810th%25%29%3A%3ATech%20vol%20compressed%20too%20tight%3B%20Long%20NDX%20%2F%20Short%20SPX%200DTE%20earns%20%2B1.92v%20average%20edge%7CVXN%2FVIX%201.24x-1.30x%3A%3AFair%20equilibrium%20beta%20zone%3B%20cross-index%20gamma%20switch%20yields%20near-zero%20noise%20after%20fees%7CVXN%2FVIX%20%3E%201.42x%20%2890th%25%29%3A%3APost-tech-earnings%20panic%20rich%3B%20Short%20NDX%20%2F%20Long%20SPX%200DTE%20captures%20%2B1.64v%20mean%20reversion%7CFOMC%20Macro%20Print%20Day%3A%3AMacro%20shocks%20raise%20index%20correlation%20toward%200.96%2C%20compressing%20NDX-SPX%20dispersion&amp;metrics=CHEAP%20TECH%20ZONE%3A%3A%3C%201.18x%20Ratio%3A%3ABuy%20NDX%20%2F%20Sell%20SPX%20Gamma%7CRICH%20TECH%20ZONE%3A%3A%3E%201.42x%20Ratio%3A%3ASell%20NDX%20%2F%20Buy%20SPX%20Gamma%7CFOMC%20CORR%20SPIKE%3A%3A0.96%20Cross-%CF%81%3A%3ASpread%20Compresses%20Post-Fed%7CCLEARING%20NETTING%3A%3AOCC%20Cross-PM%3A%3AOffsets%20Index%20Haircuts</image:loc>
      <image:title>Intraday realized-to-implied volatility capture across four VXN-to-VIX spread percentile regimes</image:title>
      <image:caption>Nasdaq-100 (NDX &amp; QQQ) vs S&amp;P 500 (SPX) 0DTE Gamma Pinning &amp; Vol Spreads — Intraday realized-to-implied volatility capture across four VXN-to-VIX spread percentile regimes (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/occ-stans-20-minute-intraday-0dte-margin-addons</loc>
    <lastmod>2026-11-14T19:51:37.902Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/occ-stans-20-minute-intraday-0dte-margin-addons-hero-2026.png</image:loc>
      <image:title>OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-Ons — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (0DTE Index Options, Dealer Gamma Pinning, Vanna &amp; Charm Rehedging): How 20-minute SIFMU Monte Carlo scans police intraday 0DTE systemic tail risk.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=OCC%20STANS%2020-Minute%20Intraday%20Risk%20Surveillance%20%26%20Margin%20Pipeline&amp;subtitle=How%20real-time%20clearing%20snapshots%20catch%20intraday%200DTE%20tail%20exposure%20before%2016%3A00%20ET&amp;steps=20-Min%20Trade%20Sync%3A%3AIngest%20real-time%20Cboe%2FOPRA%20matched%20executions%20onto%20overnight%20clearing%20member%20inventory%7CGARCH%20%2B%20Pivot%20Sim%3A%3ASimulate%2010%2C000%20heavy-tailed%20Student-t%20paths%20across%20spot%2C%20skew%2C%20and%20vol-of-vol%7C99%25%20ES%20Valuation%3A%3AFull-revalue%20every%20option%20%28capturing%20Speed%20%26%20Vomma%29%20to%20compute%20worst-1%25%20average%20loss%7CErosion%20Gate%20Alert%3A%3AIf%20intraday%20deficit%20%3E50%25%20of%20excess%20capital%2C%20issue%201-hour%20intra-session%20margin%20demand!&amp;metrics=SCAN%20FREQUENCY%3A%3A20%20Minutes%3A%3AEliminates%200DTE%20Blindspot%7CSCENARIO%20COUNT%3A%3A10%2C000%2B%20Paths%3A%3AFull%20Nonlinear%20Repricing%7CTAIL%20QUANTILE%3A%3A99%25%20CVaR%20%28ES%29%3A%3AStricter%20Than%2099%25%20VaR%7CSIFMU%20REGULATORS%3A%3ASEC%20%2F%20CFTC%20%2F%20Fed%3A%3ATitle%20VIII%20Dodd-Frank</image:loc>
      <image:title>OCC STANS 20-minute intraday clearing risk pipeline from trade ingestion to intra-session margin calls</image:title>
      <image:caption>OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-Ons — OCC STANS 20-minute intraday clearing risk pipeline from trade ingestion to intra-session margin calls (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Intraday%20STANS%20Margin%20Escalation%20During%20a%20-1.5%25%20SPX%20Selloff&amp;subtitle=Margin%20required%20%28%24M%29%20per%2025%2C000%20short%200DTE%2010-delta%20SPX%20puts%20across%20four%20intraday%20checkpoints&amp;steps=09%2050%20ET%20Calm%20Open%3A%3A%24105M%20STANS%20requirement%3B%20SPX%20%3D%205%2C850%2C%20VIX1D%20%3D%2011.5%25%2C%20puts%20sit%2045%20pts%20OTM%7C11%2030%20ET%20-0.6%25%20Dip%3A%3A%24174M%20STANS%20%28%2B66%25%29%3B%20SPX%20%3D%205%2C815%2C%20VIX1D%20%3D%2015.8%25%2C%20wing%20Zomma%20wakes%20short%20gamma%7C13%2010%20ET%20-1.1%25%20Drop%3A%3A%24288M%20STANS%20%28%2B174%25%29%3B%20clearing%20broker%20issues%20urgent%20customer%20risk-reduction%20warning%7C14%2010%20ET%20-1.5%25%20Flush%3A%3A%24418M%20STANS%20%28%2B298%25%29!%20Forced%20broker%20buybacks%20accelerate%20afternoon%20ES%20liquidation&amp;metrics=OPEN%20MARGIN%3A%3A%24105M%3A%3A09%3A50%20ET%20Snapshot%7CSTRESSED%20MARGIN%3A%3A%24418M%3A%3A3.98x%20Jump%20in%204%20Hours!%7CFORCED%20ACTION%3A%3AAuto-Buyback%3A%3AProtects%20Clearing%20Fund%7CCROSS-MARGIN%3A%3AOCC-CME%20Link%3A%3AOffsets%20Hedged%20ES%20Legs</image:loc>
      <image:title>Intraday progression of OCC STANS margin requirement on a short 0DTE put book during a -1.5% SPX selloff</image:title>
      <image:caption>OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-Ons — Intraday progression of OCC STANS margin requirement on a short 0DTE put book during a -1.5% SPX selloff (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/finra-rule-4210-portfolio-margin-tims-vs-reg-t</loc>
    <lastmod>2026-11-14T23:28:18.781Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/finra-rule-4210-portfolio-margin-tims-vs-reg-t-hero-2026.png</image:loc>
      <image:title>FINRA Rule 4210 TIMS Portfolio Margin vs Reg T Haircuts for Index Books — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (0DTE Index Options, Dealer Gamma Pinning, Vanna &amp; Charm Rehedging): TIMS 10-point shock grids vs Reg T templates—and the prime-broker house stress catch.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Institutional%20Options%20Margin%20Waterfall%3A%20Reg%20T%20%E2%86%92%20TIMS%20%E2%86%92%20House%20Stress&amp;subtitle=Why%20prime%20brokers%20layer%20Vomma%20and%20extended-tail%20shocks%20atop%20statutory%20FINRA%204210%20TIMS&amp;steps=1.%20Basket%20Netting%3A%3AAggregate%20SPX%2C%20SPY%2C%20NDX%2C%20QQQ%2C%20and%20IWM%20options%20into%20Broad-Based%20Index%20Product%20Group%7C2.%20Statutory%20TIMS%3A%3AEvaluate%2010%20equidistant%20spot%20points%20%28-8%25%20to%20%2B6%25%20index%29%20holding%20implied%20vol%20constant%7C3.%20House%20Tail%20Overlay%3A%3APrime%20broker%20tests%20-18%25%20crash%20%2B%20%2B60%25%20IV%20surge%20to%20catch%20short%20Vomma%20wing%20ratios!%7C4.%20Binding%20Requirement%3A%3AAccount%20posts%20MAX%28Statutory%20TIMS%2C%20House%20Stress%2C%20%2437.50%2Flot%20floor%29%20intraday&amp;metrics=REG%20T%20STRANGLE%3A%3A%2460%2C520%20%2F%20Lot%3A%3A10.3%25%20of%20Notional%7CSTATUTORY%20TIMS%3A%3A%2419%2C480%20%2F%20Lot%3A%3A3.3%25%20of%20Notional%7CHOUSE%20STRESSED%3A%3A%2434%2C900%20%2F%20Lot%3A%3A5.9%25%20w%2F%20Vomma%20Shock%7CBOX%20SPREAD%20TIMS%3A%3A~%24150%20%2F%20Box%3A%3ASOFR%20Synthetic%20Borrow</image:loc>
      <image:title>Three-tier margin evaluation waterfall from Reg T to statutory TIMS and prime-broker house stress</image:title>
      <image:caption>FINRA Rule 4210 TIMS Portfolio Margin vs Reg T Haircuts for Index Books — Three-tier margin evaluation waterfall from Reg T to statutory TIMS and prime-broker house stress (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Margin%20Haircut%20%28%25%20of%20Notional%29%3A%20Reg%20T%20vs%20FINRA%204210%20Portfolio%20Margin&amp;subtitle=Required%20collateral%20per%20%24585%2C000%20SPX%20equivalent%20across%20four%20volatility%20trading%20books&amp;steps=Delta-Hedged%20Straddle%3A%3AReg%20T%3A%2021.4%25%20notional%20vs%20PM%3A%201.6%25%20notional%20%2813.4x%20higher%20capital%20efficiency!%29%7CSPX%20vs%20QQQ%20RV%20Switch%3A%3AReg%20T%3A%2018.8%25%20notional%20vs%20PM%3A%202.3%25%20notional%20via%20Broad-Index%20cross-product%20offset%7CShort%2010d%20Strangle%3A%3AReg%20T%3A%2010.3%25%20notional%20vs%20House%20PM%3A%205.9%25%20notional%20%28expands%20dynamically%20if%20VIX%20spikes%29%7CNaked%200DTE%205d%20Wings%3A%3AHouse%20PM%20imposes%203x-5x%20concentration%20surcharge%20over%20statutory%20TIMS%20after%202018%2F2020!&amp;metrics=HEDGED%20STRADDLE%3A%3A13.4x%20Leverage%3A%3APM%20vs%20Reg%20T%20Gain%7CINDEX%20RV%20OFFSET%3A%3A85%25%20-%2090%25%3A%3ABroad-Index%20Class%7CFUTURES%20BRIDGE%3A%3ASPAN%20%2F%20Prisma%3A%3ARequires%20Cross-Margin%7CINTRADAY%20SYNC%3A%3AOCC%20STANS%3A%3AClearing%20Firm%20Backstop</image:loc>
      <image:title>Margin as percentage of underlying notional across four strategy types comparing Reg T vs Portfolio Margin</image:title>
      <image:caption>FINRA Rule 4210 TIMS Portfolio Margin vs Reg T Haircuts for Index Books — Margin as percentage of underlying notional across four strategy types comparing Reg T vs Portfolio Margin (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/cboe-open-close-signed-dealer-gamma-positioning</loc>
    <lastmod>2026-11-14T19:46:34.872Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/cboe-open-close-signed-dealer-gamma-positioning-hero-2026.png</image:loc>
      <image:title>Signed Dealer Gamma Reconstruction: Cboe Open-Close Data vs Naive OI GEX — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (0DTE Index Options, Dealer Gamma Pinning, Vanna &amp; Charm Rehedging): Replacing broken &quot;Calls minus Puts&quot; heuristics with exact Cboe Open-Close inventory accounting.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Institutional%20Hybrid%20Signed-GEX%20Reconstruction%20Pipeline&amp;subtitle=Combining%20exact%20overnight%20Cboe%20Open-Close%20inventory%20with%20live%20intraday%20OPRA%20tick%20signing&amp;steps=T%2B1%20Exact%20Ledger%3A%3AUpdate%20cumulative%20N_MM%28K%2CT%29%20across%20all%20multi-day%20series%20from%20Cboe%20Open-Close%20files%7C09%2030%20Live%20OPRA%3A%3AIngest%20real-time%20OPRA%20ticks%3B%20separate%20single-leg%20sweeps%20from%20complex%20COB%20spreads%7CQuote-Rule%20Sign%3A%3ASign%20aggressor%20at%20Ask%20%28Customer%20Buy%20-%3E%20MM%20Short%29%20vs%20Bid%20%28Customer%20Sell%20-%3E%20MM%20Long%29%7CLive%20S_flip%20Map%3A%3AEvaluate%20sticky-delta%20GEX%28S%29%2C%20Vanna%2C%20and%20Charm%20every%2030%20seconds%20across%20RTH&amp;metrics=MULTI-DAY%20ACCURACY%3A%3A%3E99%25%20Exact%3A%3AVia%20Official%20Open-Close%7CINTRADAY%200DTE%20FIT%3A%3A~84%25%20R-Squared%3A%3ANBBO%20%2B%20Auction%20Signing%7CNAIVE%20CALL%20BIAS%3A%3A%2B86%25%20Inflated%3A%3AIgnores%20Customer%20Call%20Buys%7CNAIVE%20PUT%20BIAS%3A%3A-62%25%20Inflated%3A%3AIgnores%20Put-Write%20ETFs</image:loc>
      <image:title>Hybrid T+1 Cboe Open-Close and live intraday OPRA quote-signing pipeline for institutional GEX</image:title>
      <image:caption>Signed Dealer Gamma Reconstruction: Cboe Open-Close Data vs Naive OI GEX — Hybrid T+1 Cboe Open-Close and live intraday OPRA quote-signing pipeline for institutional GEX (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Naive%20Unsigned%20OI%20GEX%20vs%20True%20Cboe%20Open-Close%20Signed%20GEX%20%28%24B%20%2F%201%25%29&amp;subtitle=Representative%20S%26P%20500%20profile%20showing%20how%20unsigned%20heuristics%20distort%20upside%20and%20downside%20walls&amp;steps=Upside%20%2B2%25%20Call%20Wing%3A%3ANaive%3A%20%2B%246.4B%20vs%20True%20Signed%3A%20%2B%241.1B%20%28Retail%2FCTA%20call%20buying%20offsets%20overwriters!%29%7CATM%200DTE%20Pin%20Zone%3A%3ANaive%3A%20%2B%244.8B%20vs%20True%20Signed%3A%20%2B%240.7B%20%2860%25%20of%200DTE%20ATM%20volume%20is%20balanced%20spreads%29%7CDownside%20-3%25%20Put%20Zone%3A%3ANaive%3A%20-%247.9B%20vs%20True%20Signed%3A%20-%243.6B%20%28Put-write%20funds%20%26%20put-spread%20short%20legs%20buffer%29%7CZero-Gamma%20Flip%20Strike%3A%3ANaive%20places%20S_flip%20at%205%2C790%3B%20True%20Signed%20places%20S_flip%20at%205%2C848%20%28%2B58%20pts%20higher!%29&amp;metrics=NAIVE%20S_FLIP%3A%3A5%2C790%20SPX%3A%3AFalse%20Comfort%20Cushion%7CTRUE%20SIGNED%20S_FLIP%3A%3A5%2C848%20SPX%3A%3A%2B58%20Pts%20Closer%20to%20Spot!%7CDATA%20REGULATOR%3A%3ASEC%20%2F%20CAT%3A%3AConsolidated%20Audit%20Trail%7CARCHIVE%20SOURCE%3A%3ACboe%20DataShop%3A%3ADaily%20Open-Close%20CSV</image:loc>
      <image:title>Comparison of unsigned gross GEX estimate versus true Cboe Open-Close signed GEX across four SPX zones</image:title>
      <image:caption>Signed Dealer Gamma Reconstruction: Cboe Open-Close Data vs Naive OI GEX — Comparison of unsigned gross GEX estimate versus true Cboe Open-Close signed GEX across four SPX zones (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/monthly-am-settled-spx-opex-soq-auction-unwinds</loc>
    <lastmod>2026-11-14T19:51:19.259Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/monthly-am-settled-spx-opex-soq-auction-unwinds-hero-2026.png</image:loc>
      <image:title>Monthly Third-Friday AM-Settled SPX OPEX &amp; 09:30 ET SOQ Gamma Unwinds — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (0DTE Index Options, Dealer Gamma Pinning, Vanna &amp; Charm Rehedging): Inside Friday 09:30 ET Special Opening Quotation auctions and post-OPEX gamma unpinning.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Third-Friday%20AM%20OPEX%20%26%20SOQ%20%28SET%29%20Settlement%20Sequence&amp;subtitle=How%20overnight%20Globex%20gaps%20trap%20AM%20option%20holders%20and%20release%20multi-billion-dollar%20MOO%20flows&amp;steps=Thu%2016%2015%20ET%20Freeze%3A%3AAM-settled%20SPX%20options%20cease%20trading%3B%20holders%20carry%20unhedged%20overnight%20SET%20exposure%7CFri%2009%2028%20ET%20MOO%20Cut%3A%3ADealers%20lock%20500-stock%20NYSE%2FNasdaq%20Market-on-Open%20baskets%20against%20expiring%20ES%20hedges%7C09%2030-09%2038%20ET%20SET%3A%3AConstituent%20opening%20auctions%20print%20asynchronously%3B%20Cboe%20publishes%20official%20SET%20fix%7CPost-OPEX%20Unclench%3A%3A35%25-45%25%20of%20structural%20GEX%20%26%20Charm%20vanishes%3B%20market%20transitions%20to%20freer%20directional%20moves&amp;metrics=LAST%20TRADE%3A%3AThu%2016%3A15%20ET%3A%3A17%2B%20Hrs%20Blind%20to%20SET!%7CMOO%20CUTOFF%3A%3A09%3A28%3A00%20ET%3A%3ANYSE%20%2F%20Nasdaq%20Opening%7CGEX%20DROP%20%40%2009%2030%3A%3A-50%25%20to%20-68%25%3A%3AInstant%20Pin%20Removal%7CQUAD%20WITCHING%3A%3AMar%2FJun%2FSep%2FDec%3A%3AAM%20SPX%20%2B%20Expiring%20ES%2FNQ</image:loc>
      <image:title>Timeline from Thursday 16:15 ET AM SPX last trade through Friday 09:28 ET MOO cutoff and post-OPEX unpinning</image:title>
      <image:caption>Monthly Third-Friday AM-Settled SPX OPEX &amp; 09:30 ET SOQ Gamma Unwinds — Timeline from Thursday 16:15 ET AM SPX last trade through Friday 09:28 ET MOO cutoff and post-OPEX unpinning (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=S%26P%20500%20Realized%20Volatility%20Across%20the%20Monthly%20OPEX%20Cycle&amp;subtitle=Annualized%205-day%20realized%20SPX%20volatility%20before%2C%20during%2C%20and%20after%20third-Friday%20AM%20OPEX&amp;steps=OPEX%20Week%20%28Mon-Thu%29%3A%3A11.4%25%20avg%20realized%20vol%3B%20peak%20multi-month%20%2BGEX%20and%20Charm%20pin%20SPX%20to%20major%2050%2F100%20strikes%7COPEX%20Friday%20Open%3A%3AOpening%20volume%205.2x%20normal%20via%20MOO%20auctions%2C%20followed%20by%20afternoon%20PM%20SPXW%20pin%7CPost-OPEX%20Week%20%28%2B1%29%3A%3A14.8%25%20avg%20realized%20vol%20%28%2B30%25%20jump!%29%3B%20gamma%20vacuum%20allows%20clean%20CTA%20%26%20macro%20breakouts%7CWeek%20%2B2%20Rebuild%3A%3A13.1%25%20avg%20realized%20vol%20as%20fresh%20monthly%20and%20systematic%20ETF%20overwrites%20rebuild%20%2BGEX&amp;metrics=PRE-OPEX%20PIN%20RV%3A%3A11.4%25%20Ann%3A%3APeak%20Gamma%20Cushion%7CPOST-OPEX%20RV%3A%3A14.8%25%20Ann%3A%3A%2B30%25%20Unpinned%20Expansion%7COPENING%20VOLUME%3A%3A5.2x%20Normal%3A%3AQuad-Witching%20MOO%20Surge%7CSUPERVISION%3A%3ASEC%20%2F%20CFTC%3A%3AJoint%20Settlement%20Audit</image:loc>
      <image:title>Realized S&amp;P 500 5-day volatility and directional persistence across the monthly OPEX cycle</image:title>
      <image:caption>Monthly Third-Friday AM-Settled SPX OPEX &amp; 09:30 ET SOQ Gamma Unwinds — Realized S&amp;P 500 5-day volatility and directional persistence across the monthly OPEX cycle (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/overnight-globex-es-session-gamma-hedging-gaps</loc>
    <lastmod>2026-11-14T19:52:08.061Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/overnight-globex-es-session-gamma-hedging-gaps-hero-2026.png</image:loc>
      <image:title>Overnight CME Globex ES &amp; Cboe GTH Gamma Hedging Gaps Into 09:30 ET Open — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (0DTE Index Options, Dealer Gamma Pinning, Vanna &amp; Charm Rehedging): Hedging S&amp;P 500 gamma across thin Asian/London Globex books and 08:30 ET pre-open shocks.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=24-Hour%20Global%20SPX%20%2F%20ES%20Dealer%20Gamma%20Hedging%20Clock&amp;subtitle=Tracking%20order-book%20depth%2C%20Cboe%20GTH%20option%20spreads%2C%20and%2008%3A30%2F09%3A30%20ET%20liquidity%20surges&amp;steps=20%2015%20ET%20GTH%20Open%3A%3ACboe%20GTH%20SPX%2FVIX%20opens%20alongside%20Asian%20Globex%3B%20wide%20Whalley-Wilmott%20hedge%20bands%20apply%7C03%2000%20ET%20London%3A%3AEuropean%20equity%20open%20triples%20Globex%20ES%20depth%3B%20dealers%20hedge%20%3E15-pt%20overnight%20drifts%7C08%2030%20ET%20US%20Macro%3A%3ACPI%2FNFP%20hits%2060%20mins%20before%20NYSE!%20Massive%20GTH%20VIX1D%20crush%20%26%20Vanna%20ES%20execution%7C09%2030%20ET%20RTH%20Sync%3A%3ACash%20equities%20open%3B%20delayed%20RTH%20option%20desks%20execute%20-%241.5B%2B%20catch-up%20delta%20hedges&amp;metrics=ASIA%20ES%20DEPTH%3A%3A~14%25%20of%20RTH%3A%3AWide%20Hedging%20Bands%7CLONDON%20ES%20DEPTH%3A%3A~38%25%20of%20RTH%3A%3AEuropean%20Desk%20Entry%7C08%2030%20ET%20SURGE%3A%3A85%25%20RTH%20Pace%3A%3AOn%20CPI%20%2F%20NFP%20Mornings%7CGAP%20FADE%20ODDS%3A%3A68%25%20in%20%2BGEX%3A%3AFirst%2045%20Mins%20of%20RTH</image:loc>
      <image:title>24-hour dealer hedging liquidity cycle from 16:15 ET close through Tokyo London 08:30 ET macro and 09:30 ET RTH open</image:title>
      <image:caption>Overnight CME Globex ES &amp; Cboe GTH Gamma Hedging Gaps Into 09:30 ET Open — 24-hour dealer hedging liquidity cycle from 16:15 ET close through Tokyo London 08:30 ET macro and 09:30 ET RTH open (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=09%3A30%E2%80%9310%3A30%20ET%20Overnight%20Gap%20Fate%20by%20Gap%20Size%20%26%20Dealer%20GEX&amp;subtitle=Probability%20that%20SPX%20retraces%20%E2%89%A550%25%20of%20its%20overnight%20gap%20during%20the%20first%20RTH%20hour&amp;steps=%3C0.5%25%20Gap%20%2B%20Long%20GEX%3A%3A71%25%20gap-fade%20probability!%20Delayed%20RTH%20dealer%20catch-up%20hedges%20pull%20SPX%20back%20toward%20pin%7C%3E1.0%25%20Gap%20%2B%20Long%20GEX%3A%3A44%25%20fade%20probability%3B%20large%20gap%20pushes%20spot%20past%20ATM%20gamma%20bell%20toward%20flip%20zone%7C%3C0.5%25%20Gap%20%2B%20Short%20GEX%3A%3A39%25%20fade%20probability%3B%20RTH%20catch-up%20hedges%20reinforce%20overnight%20gap%20direction!%7C%3E1.0%25%20Gap%20%2B%20Short%20GEX%3A%3AOnly%2018%25%20fade!%2082%25%20gap-and-go%20continuation%20fueled%20by%20short-gamma%20chasing%20%26%20STANS%20calls&amp;metrics=SMALL%20%2BGEX%20FADE%3A%3A71%25%20Retrace%3A%3AClassic%20Morning%20Mean-Rev%7CLARGE%20-GEX%20TREND%3A%3A82%25%20Gap%20%26%20Go%3A%3ACatch-Up%20Chases%20Gap!%7CFUTURES%20REGULATOR%3A%3ACFTC%20%2F%20NFA%3A%3A24x5%20Globex%20Oversight%7CEUROPEAN%20ACCESS%3A%3AFCA%20%2F%20ESMA%3A%3ACross-Border%20GTH%20Flow</image:loc>
      <image:title>First-hour 09:30 to 10:30 ET S&amp;P 500 gap continuation versus gap fade rate by overnight gap size and GEX sign</image:title>
      <image:caption>Overnight CME Globex ES &amp; Cboe GTH Gamma Hedging Gaps Into 09:30 ET Open — First-hour 09:30 to 10:30 ET S&amp;P 500 gap continuation versus gap fade rate by overnight gap size and GEX sign (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/systematic-put-write-etf-putw-xyld-gamma-supply</loc>
    <lastmod>2026-11-14T19:58:17.328Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/systematic-put-write-etf-putw-xyld-gamma-supply-hero-2026.png</image:loc>
      <image:title>Systematic Put-Write &amp; Call-Overwrite ETFs (PUTW, XYLD, JEPI) Gamma Supply — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (0DTE Index Options, Dealer Gamma Pinning, Vanna &amp; Charm Rehedging): How $120B+ of price-insensitive ETF option writing suppresses VIX and pins upside calls.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Derivative-Income%20ETF%20Supply%20Transmission%20Into%20Cboe%20Volatility%20Surfaces&amp;subtitle=How%20retail%20dividend-yield%20chasing%20becomes%20structural%20dealer%20long-gamma%20and%20cheap%20upside%20calls&amp;steps=1.%20Retail%20Yield%20Inflow%3A%3AAdvisors%20allocate%20%24120B%2B%20into%20JEPI%2C%20JEPQ%2C%20XYLD%2C%20QYLD%2C%20SPYI%20for%208%25-11%25%20monthly%20yield%7C2.%20Scheduled%20Roll%20%2F%20ELN%3A%3AETFs%20sell%2030DTE%20ATM%20calls%20%28XYLD%29%20or%20staggered%20weekly%2025d-30d%20call%20ELNs%20%28JEPI%2FJEPQ%29%7C3.%20Dealer%20Long%20Book%3A%3ABank%20%26%20Cboe%20MMs%20buy%20calls%20cheap%2C%20inheriting%20%2B%247.5B%2B%20positive%20gamma%20at%20100%25-103%25%20SPX%7C4.%20Surface%20Distortion%3A%3ARealized%20vol%20pinned%20in%20bull%20grinds%3B%2030d%20upside%20calls%20become%20structurally%20underpriced!&amp;metrics=MONTHLY%20VEGA%20FLOW%3A%3A%2B%24101M%20%2F%20Vol%3A%3AAbsorbed%20by%20Dealers%7CUPSIDE%20%2BGEX%20ZONE%3A%3A100%25%20-%20103%25%20S%E2%82%80%3A%3ADampens%20Bull%20Volatility%7CCALL%20IV%20DISCOUNT%3A%3A-1.6%20Vol%20Pts%3A%3ACheap%20Upside%20Convexity%7CREGULATORY%20FORM%3A%3ASEC%20Rule%2018f-4%3A%3AETF%20Derivatives%20Risk</image:loc>
      <image:title>Transmission channel from retail income ETF inflows through ELN bank desks to Cboe SPX dealer long-gamma supply</image:title>
      <image:caption>Systematic Put-Write &amp; Call-Overwrite ETFs (PUTW, XYLD, JEPI) Gamma Supply — Transmission channel from retail income ETF inflows through ELN bank desks to Cboe SPX dealer long-gamma supply (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Asymmetric%20Dealer%20Gamma%20Blanket%20From%20Covered-Call%20ETFs%20vs%20Spot%20Move&amp;subtitle=Net%20dealer%20%24GEX%20%28%24B%20per%201%25%29%20supplied%20by%20%2495B%20of%20ETF%20call%20overwrites%20across%20SPX%20return%20states&amp;steps=%2B2.0%25%20Bull%20Grind%3A%3A%2B%247.4B%20dealer%20GEX%20peak!%20Spot%20sits%20right%20on%20sold%2025d-35d%20call%20strikes%3B%20realized%20vol%20crushed%7C0.0%25%20Flat%20Spot%3A%3A%2B%245.8B%20dealer%20GEX%3B%20ATM%20XYLD%2FQYLD%20rolls%20%2B%20near-OTM%20ELNs%20keep%20tape%20tightly%20mean-reverting%7C-3.0%25%20Pullback%3A%3A%2B%241.9B%20dealer%20GEX%3B%20call%20strikes%20fall%203%25-5.5%25%20above%20spot%2C%20losing%2074%25%20of%20stabilizing%20gamma%7C-6.0%25%20Correction%3A%3A%2B%240.3B%20ETF%20GEX%20%2896%25%20GONE!%29%20while%20macro%20put%20short-GEX%20hits%20-%245.2B%20%3D%3E%20sudden%20vol%20regime%20jump!&amp;metrics=BULL%20CUSHION%3A%3A%2B%247.4B%20GEX%3A%3AAt%20%2B2%25%20Monthly%20Rally%7C-6%25%20STARVATION%3A%3A-96%25%20Loss%3A%3ACalls%20Stranded%20Far%20OTM%7CALPHA%20TRADE%3A%3ABuy%2030d%2025d%20Call%3A%3AHarvest%20ETF%20Wing%20Discount%7CSEC%20FRAMEWORK%3A%3ARule%2018f-4%20VaR%3A%3ARelative%20VaR%20Compliance</image:loc>
      <image:title>Dealer gamma contribution from covered-call ETFs as SPX moves from +3% rally down to -6% correction</image:title>
      <image:caption>Systematic Put-Write &amp; Call-Overwrite ETFs (PUTW, XYLD, JEPI) Gamma Supply — Dealer gamma contribution from covered-call ETFs as SPX moves from +3% rally down to -6% correction (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/whalley-wilmott-asymptotic-discrete-gamma-hedging</loc>
    <lastmod>2026-11-14T19:49:38.599Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/whalley-wilmott-asymptotic-discrete-gamma-hedging-hero-2026.png</image:loc>
      <image:title>Whalley-Wilmott Discrete Gamma Hedging Bandwidths Under ES Transaction Costs — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (0DTE Index Options, Dealer Gamma Pinning, Vanna &amp; Charm Rehedging): Optimal cubic-root no-trade delta corridors for CME ES gamma scalping.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Whalley-Wilmott%20Skorokhod%20Reflection%20Hedging%20Engine&amp;subtitle=Why%20optimal%20execution%20reflects%20onto%20%C2%B1H*%20boundaries%20instead%20of%20resetting%20net%20delta%20to%20zero&amp;steps=1.%20Live%20Greek%20Stream%3A%3ACompute%20%CE%94_net%20%3D%20%CE%94_options%28S%2C%20%CF%83%2C%20t%29%20%2B%20N_ES%20*%2050%20across%20live%20SSVI%20surface%7C2.%20Dynamic%20c%28t%29%20Est%3A%3AMeasure%20real-time%20CME%20ES%20top-of-book%20spread%20%2B%20depth%20impact%20cost%20c%28t%29%7C3.%20Band%20Gate%20%20%CE%94%20%20%E2%89%A4%20H*%3A%3ASuppress%20noise%20trades%20inside%20%5B-H*%2C%20%2BH*%5D%2C%20saving%2062%25-74%25%20of%20ES%20turnover%20bleed!%7C4.%20Boundary%20Reflect%3A%3AWhen%20%CE%94_net%20%3D%20%2B92%20ES%20%28%3E%20%2B77%20ES%20band%29%2C%20sell%20ONLY%2015%20ES%20to%20rest%20right%20at%20%2B77%20ES!&amp;metrics=TURNOVER%20SAVED%3A%3A-68%25%20ES%20Lots%3A%3AReflect%20vs%20Re-Center%20to%200%7CCOST%20EXPONENT%3A%3Ac%5E%281%2F3%29%3A%3ACubic-Root%20Sensitivity%7CGAMMA%20EXPONENT%3A%3A%CE%93%5E%282%2F3%29%3A%3AWidens%20in%200DTE%20Close%7CSHARPE%20GAIN%3A%3A%2B0.45%20to%20%2B0.80%3A%3ALong-Gamma%20Net%20Scalp</image:loc>
      <image:title>Singular stochastic control execution diagram showing Skorokhod reflection at Whalley-Wilmott delta boundaries</image:title>
      <image:caption>Whalley-Wilmott Discrete Gamma Hedging Bandwidths Under ES Transaction Costs — Singular stochastic control execution diagram showing Skorokhod reflection at Whalley-Wilmott delta boundaries (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Net%20Post-Cost%20Gamma%20Scalping%20Performance%20by%20Hedging%20Rule&amp;subtitle=Simulated%20net%20P%26L%20retention%20%28%25%20of%20theoretical%20frictionless%20edge%29%20after%20CME%20ES%20fees%20%26%20spread&amp;steps=1-Minute%20Clock%20Reset%3A%3ARetains%20only%2024%25%20of%20gross%20gamma%20edge%3B%2076%25%20consumed%20by%20crossing%20CME%20ES%200.25-pt%20spread%7C15-Minute%20Clock%20Reset%3A%3ARetains%2051%25%20of%20edge%20on%20calm%20days%2C%20but%20suffers%20severe%20unhedged%20Speed%20drawdowns%20post-14%3A30%7CDelta-Trigger%20Reset-%3E0%3A%3ARetains%2063%25%20of%20edge%3B%20avoids%20dead-calm%20trades%20but%20whipsaws%20on%20local%20boundary%20reversals%7CWhalley-Wilmott%20%C2%B1H*%3A%3ARetains%2086%25%20of%20gross%20theoretical%20edge%20while%20adapting%20automatically%20to%20Globex%20%26%20MOC%20depth!&amp;metrics=1-MIN%20CLOCK%20KEEP%3A%3A24%25%20Net%20Edge%3A%3A76%25%20Lost%20to%20ES%20Ticks%7CRESET-TO-0%20KEEP%3A%3A63%25%20Net%20Edge%3A%3ABoundary%20Whipsaw%20Drag%7CWHALLEY-WILMOTT%3A%3A86%25%20Net%20Edge%3A%3AAsymptotic%20Optimum%7COVERSIGHT%3A%3ACFTC%20%2F%20NFA%3A%3AAutomated%20Algo%20Controls</image:loc>
      <image:title>Net annualized Sharpe ratio of 0DTE SPX gamma scalping across four delta-hedging policies</image:title>
      <image:caption>Whalley-Wilmott Discrete Gamma Hedging Bandwidths Under ES Transaction Costs — Net annualized Sharpe ratio of 0DTE SPX gamma scalping across four delta-hedging policies (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/single-stock-call-skew-inversion-gamma-squeezes</loc>
    <lastmod>2026-11-14T19:52:07.608Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/single-stock-call-skew-inversion-gamma-squeezes-hero-2026.png</image:loc>
      <image:title>Single-Stock Call-Skew Inversion &amp; Dealer Short-Call Gamma Squeezes — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (0DTE Index Options, Dealer Gamma Pinning, Vanna &amp; Charm Rehedging): When inverted call skew, positive spot-vol beta, and short interest ignite twin Gamma-Vanna loops.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=The%20Triple-Feedback%20Single-Stock%20Upside%20Squeeze%20Loop&amp;subtitle=How%20%CF%81%20%3E%200%20aligns%20Gamma%2C%20Vanna%2C%20and%20physical%20short%20covering%E2%80%94and%20how%20Charm%20collapses%20it&amp;steps=1.%20OTM%20Call%20Sweep%3A%3ABuyers%20sweep%205d-25d%20weekly%20calls%3B%20RR_25d%20flips%20%3E%2B5v%20and%20dealers%20buy%20initial%20delta%20shares%7C2.%20Spot%20%2B%20IV%20Surge%3A%3AThin%20float%20lifts%20stock%20%2B15%25%20while%20call%20IV%20doubles%3B%20Gamma%20AND%20Vanna%20both%20spike%20call%20delta!%7C3.%20Short%20Margin%20Call%3A%3AFINRA%204210%20house%20stress%20%2B%20borrow%20fee%20spikes%20force%20equity%20short%20sellers%20to%20buy%20to%20cover%7C4.%20Charm%2FVanna%20Cliff%3A%3AWhen%20call%20buying%20pauses%2C%20rapid%20weekly%20Charm%20%2B%20IV%20crush%20dump%20millions%20of%20dealer%20shares!&amp;metrics=INDEX%20SPOT-VOL%20%CF%81%3A%3A-0.75%20%28Damps%29%3A%3ARallies%20Crush%20Index%20IV%7CSQUEEZE%20SPOT-VOL%20%CF%81%3A%3A%2B0.72%20%28Fuels!%29%3A%3ARallies%20Explode%20Call%20IV%7CFLOAT%20DANGER%20ZONE%3A%3ASI%20%3E%2020%25%20Float%3A%3AConstrained%20Share%20Supply%7CHOUSE%20MARGIN%20CAP%3A%3A100%25%20Requirement%3A%3APrime%20Broker%20Circuit%20Break</image:loc>
      <image:title>Positive-correlation feedback loop linking OTM call sweeps inverted call skew dealer Gamma-Vanna buying and short seller margin calls</image:title>
      <image:caption>Single-Stock Call-Skew Inversion &amp; Dealer Short-Call Gamma Squeezes — Positive-correlation feedback loop linking OTM call sweeps inverted call skew dealer Gamma-Vanna buying and short seller margin calls (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Decomposition%20of%20Dealer%20Share%20Hedging%20in%20an%20Upside%20Call%20Squeeze&amp;subtitle=Share%20of%20incremental%20dealer%20stock%20purchases%20driven%20by%20Gamma%2C%20Vanna%2C%20and%20collapse%20unwinds&amp;steps=Early%20Ignition%20%28%2B8%25%29%3A%3A64%25%20Vanna%20%2B%2036%25%20Gamma!%20Rising%20OTM%20call%20IV%20inflates%20deltas%20before%20spot%20even%20breaks%20out%7CMid%20Squeeze%20%28%2B35%25%29%3A%3A52%25%20Gamma%20%2B%2048%25%20Vanna%3B%20strikes%20go%20ATM%20while%20expanded%20strike%20ladder%20carries%20150%25%2B%20IV%7CPeak%20Blowoff%20%28%2B80%25%29%3A%3ASEC%20%2F%20OCC%20%2F%20FINRA%20house%20margin%20hikes%20choke%20fresh%20leveraged%20buying%3B%20IV%20tops%20out%7CUnwind%20Collapse%20%28-40%25%29%3A%3ANegative%20Charm%20%2B%20Vanna%20IV%20crush%20force%20dealers%20to%20dump%2078%25%20of%20hedged%20stock%20in%2048%20hours!&amp;metrics=IGNITION%20DRIVER%3A%3A64%25%20Vanna%3A%3AIV%20Expansion%20Leads%20Spot%7CUNWIND%20SPEED%3A%3A48-Hour%20Dump%3A%3ACharm%20%2B%20Vanna%20Reverse%7CSEC%20REPORT%3A%3A2021%20Staff%20Study%3A%3AOptions%20vs%20Short%20Cover%7CCLEARING%20GATE%3A%3AOCC%20Concentration%3A%3ASingle-Name%20Add-Ons</image:loc>
      <image:title>Decomposition of dealer share buying between pure spot Gamma and vol-expansion Vanna during an upside call squeeze</image:title>
      <image:caption>Single-Stock Call-Skew Inversion &amp; Dealer Short-Call Gamma Squeezes — Decomposition of dealer share buying between pure spot Gamma and vol-expansion Vanna during an upside call squeeze (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/0dte-intraday-variance-clock-vs-wall-clock-theta</loc>
    <lastmod>2026-11-14T19:48:29.540Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/0dte-intraday-variance-clock-vs-wall-clock-theta-hero-2026.png</image:loc>
      <image:title>0DTE Intraday Variance-Time Clock vs Wall-Clock Theta &amp; Event Jumps — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (0DTE Index Options, Dealer Gamma Pinning, Vanna &amp; Charm Rehedging): Eliminating fake midday IV drift and FOMC theta errors via weighted variance-time clocks.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Institutional%20Intraday%20%26%20Multi-Day%20Variance%20Clock%20Architecture&amp;subtitle=Mapping%201-minute%20historical%20SPX%20squared%20returns%20and%20macro%20calendars%20into%20%CF%84%28t%29&amp;steps=1.%20Diurnal%20Curve%20w%28u%29%3A%3AFit%20U-shaped%201-min%20RTH%20weights%3A%20Open%20%282.3x%29%2C%20Midday%20%280.48x%29%2C%2015%3A30-16%3A00%20Close%20%282.6x%29%7C2.%20Overnight%2FWeekend%3A%3AAssign%200.32%20weight%20to%20regular%20overnight%20and%20%2B0.30%20additional%20weight%20to%20Sat%2BSun%7C3.%20Event%20Jump%20Ledger%3A%3AInject%20discrete%20J_k%5E2%20weights%20at%2008%3A30%20CPI%2FNFP%2C%2014%3A00%20FOMC%2C%20and%2014%3A30%20Powell%20Q%26A%7C4.%20Clean%20Surface%20Fit%3A%3AInvert%20options%20on%20%CF%84_eff%28t%29%20so%20Greeks%20%28%CE%93%2C%20Charm%2C%20Vega%29%20never%20jump%20on%20clock%20artifacts!&amp;metrics=09%2030-10%2000%20WEIGHT%3A%3A2.35x%20Mean%3A%3APrice%20Discovery%20Surge%7C12%2000-13%2000%20WEIGHT%3A%3A0.48x%20Mean%3A%3AMidday%20Theta%20Slowdown%7C15%2030-16%2000%20WEIGHT%3A%3A2.62x%20Mean%3A%3AMOC%20%26%20Pin%20Climax%7CFOMC%2014%2000-15%2000%3A%3A~68%25%20of%20Day%3A%3AStep-Function%20Decay</image:loc>
      <image:title>Construction of an institutional 24x7 weighted variance clock combining diurnal RTH weights weekend weights and macro event jumps</image:title>
      <image:caption>0DTE Intraday Variance-Time Clock vs Wall-Clock Theta &amp; Event Jumps — Construction of an institutional 24x7 weighted variance clock combining diurnal RTH weights weekend weights and macro event jumps (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Empirical%20Distribution%20of%20RTH%20S%26P%20500%20Realized%20Variance%20by%20Window&amp;subtitle=Percentage%20of%20total%2009%3A30%E2%80%9316%3A00%20ET%20squared%201-minute%20SPX%20returns%20on%20non-FOMC%20days&amp;steps=09%2030-10%2030%20%2815%25%20Time%29%3A%3A29%25%20of%20RTH%20variance!%20Morning%20macro%20digestion%20%2B%20overnight%20Globex%20catch-up%20flows%7C10%2030-13%2030%20%2846%25%20Time%29%3A%3AOnly%2024%25%20of%20RTH%20variance!%20Nearly%20half%20the%20trading%20day%20produces%20%3C1%2F4%20of%20variance%7C13%2030-15%2000%20%2823%25%20Time%29%3A%3A19%25%20of%20RTH%20variance%3B%20Treasury%20auctions%20%2813%3A00%29%20%26%20European%20close%20%2811%3A30%29%20transitions%7C15%2000-16%2000%20%2815%25%20Time%29%3A%3A28%25%20of%20RTH%20variance!%2015%3A50%20ET%20MOC%20imbalances%20%2B%20Color%20pin%20battles%20pack%20huge%20variance&amp;metrics=FIRST%20HOUR%20SHARE%3A%3A29%25%20Variance%3A%3AIn%2015.4%25%20of%20RTH%20Mins%7CMIDDAY%203-HR%20SHARE%3A%3A24%25%20Variance%3A%3AIn%2046.2%25%20of%20RTH%20Mins%7CFINAL%20HOUR%20SHARE%3A%3A28%25%20Variance%3A%3AIn%2015.4%25%20of%20RTH%20Mins%7CBENCHMARK%20INDEX%3A%3ACboe%20VIX1D%3A%3A1-Day%20Implied%20Anchor</image:loc>
      <image:title>Share of normal RTH 0DTE S&amp;P 500 realized variance accrued across four intraday time buckets</image:title>
      <image:caption>0DTE Intraday Variance-Time Clock vs Wall-Clock Theta &amp; Event Jumps — Share of normal RTH 0DTE S&amp;P 500 realized variance accrued across four intraday time buckets (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/cboe-vix-model-free-log-strip-truncation-bias</loc>
    <lastmod>2026-11-14T19:47:19.945Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/cboe-vix-model-free-log-strip-truncation-bias-hero-2026.png</image:loc>
      <image:title>Cboe VIX Model-Free Log-Strip Replication &amp; Strike Truncation Bias — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (VIX Term Structure, Variance Swaps, Vol-of-Vol VVIX &amp; Tail Hedging): Exact 1/K2 log-contract replication, minute interpolation, and panic zero-bid truncation errors.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
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      <image:title>Step-by-step Cboe VIX real-time calculation engine from OPRA SPX quotes to 15-second VIX dissemination</image:title>
      <image:caption>Cboe VIX Model-Free Log-Strip Replication &amp; Strike Truncation Bias — Step-by-step Cboe VIX real-time calculation engine from OPRA SPX quotes to 15-second VIX dissemination (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Anatomical%20Breakdown%20of%20Spot%20VIX%20Variance%20by%20SPX%20Moneyness%20Bucket&amp;subtitle=Share%20of%20total%20VIX%C2%B2%20integral%20contributed%20by%20each%20strike%20region%20in%20a%20standard%20skew%20regime&amp;steps=Deep%20Puts%20%28%3C88%25%20S%E2%82%80%29%3A%3A27%25%20of%20VIX%C2%B2!%20Amplified%20by%201%2FK%C2%B2%20weighting%20%2B%20steep%20Cboe%20SKEW%20tail%20implied%20vols%7CCore%20Puts%20%2888%25-98%25%29%3A%3A41%25%20of%20VIX%C2%B2!%20Primary%20institutional%20hedging%20belt%20%2815-delta%20to%2040-delta%20SPX%20puts%29%7CATM%20Band%20%2898%25-102%25%29%3A%3A19%25%20of%20VIX%C2%B2%3B%20pure%20ATM%20straddle%20level%20contributes%20less%20than%20one-fifth%20of%20VIX%C2%B2!%7COTM%20Calls%20%28%3E102%25%20S%E2%82%80%29%3A%3AOnly%2013%25%20of%20VIX%C2%B2%3B%20dampened%20by%20both%20smaller%201%2FK%C2%B2%20factor%20and%20ETF%20call%20overwriting&amp;metrics=TOTAL%20PUT%20SHARE%3A%3A68%25%20of%20VIX%C2%B2%3A%3ADownside%20Skew%20Dominates%7CATM%20BAND%20SHARE%3A%3A19%25%20of%20VIX%C2%B2%3A%3AWhy%20VIX%20%E2%89%A0%20ATM%20Vol!%7CTOTAL%20CALL%20SHARE%3A%3A13%25%20of%20VIX%C2%B2%3A%3AShrunk%20by%201%2FK%C2%B2%20%26%20ETFs%7CGOVERNANCE%3A%3ASEC%20%2F%20Cboe%3A%3A2021%20Index%20Governance</image:loc>
      <image:title>Percentage contribution to Spot VIX variance across deep OTM puts moderate OTM puts ATM strikes and OTM calls</image:title>
      <image:caption>Cboe VIX Model-Free Log-Strip Replication &amp; Strike Truncation Bias — Percentage contribution to Spot VIX variance across deep OTM puts moderate OTM puts ATM strikes and OTM calls (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vix-vx1-vx2-contango-roll-bleed-carry-harvesting</loc>
    <lastmod>2026-11-14T21:49:48.724Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vix-vx1-vx2-contango-roll-bleed-carry-harvesting-hero-2026.png</image:loc>
      <image:title>VIX Futures M1–M2 Contango Roll Bleed &amp; Curve Carry Harvesting — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (VIX Term Structure, Variance Swaps, Vol-of-Vol VVIX &amp; Tail Hedging): Why non-storable spot VIX embeds a 4%–7% monthly Variance Risk Premium roll slope.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Systematic%20VIX%20Contango%20Carry%20%26%20Regime-Gate%20Execution%20Engine&amp;subtitle=Capturing%20the%20M1%E2%80%93M2%20Variance%20Risk%20Premium%20while%20filtering%20backwardation%20tail%20cascades&amp;steps=1.%20Regime%20Slope%20Gate%3A%3ACheck%20VIX9D%20%3C%20VIX_spot%20%3C%20VX1%20%3C%20VX2%3B%20stand%20flat%20or%20flip%20long%20if%20spot%20inverts%20above%20VX1!%7C2.%20Beta-Ratio%20Sizing%3A%3AShort%2010%20VX1%20vs%20Long%2015%20VX2%20%281.5x%20beta%20ratio%29%20%2B%20Buy%2010%20OTM%20VIX%2035%20Calls%20tail%20cap%7C3.%20Roll-Down%20Capture%3A%3AHarvest%20%2464%2Fday%20per%20VX1%20lot%20as%20front%20future%20slides%20down%20curve%20toward%20Spot%20VIX%7C4.%20TAS%20%2F%20Close%20Sync%3A%3AExecute%20rolls%20ahead%20of%2016%3A00%20ET%20ETP%20TAS%20window%20via%20CFE%20FCMs%20to%20capture%20liquidity%20premium&amp;metrics=CALM%20M2-M1%20SPREAD%3A%3A%2B1.10%20to%20%2B1.65%3A%3A%241%2C100-%241%2C650%20%2F%20Cycle%7CPASSIVE%20LONG%20BLEED%3A%3A-48%25%20to%20-66%25%2Fyr%3A%3AIn%20Steady%20Bull%20Years%7CBETA%20RATIO%20%28M2%2FM1%29%3A%3A1.50x%20Contracts%3A%3ABuffers%20%2B8v%20Spikes%7CTAIL%20CAP%20COST%3A%3A~18%25%20of%20Carry%3A%3AOTM%20VIX%20Call%20Insurance</image:loc>
      <image:title>Daily constant-maturity VIX futures roll mechanism and regime-gated institutional carry harvesting workflow</image:title>
      <image:caption>VIX Futures M1–M2 Contango Roll Bleed &amp; Curve Carry Harvesting — Daily constant-maturity VIX futures roll mechanism and regime-gated institutional carry harvesting workflow (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Risk-Adjusted%20Performance%20of%20VIX%20Curve%20Carry%20Methodologies&amp;subtitle=Comparing%20gross%20carry%20retention%20versus%20maximum%20crisis%20drawdown%20across%20four%20VX%20structures&amp;steps=Unhedged%20Short%20VX1%3A%3A-92%25%20max%20drawdown%20risk%20on%20single-day%20Volmageddon%20jumps%20despite%20high%20calm-year%20win%20rate%7CNaive%201%201%20VX2-VX1%3A%3A-46%25%20max%20drawdown%20during%20backwardation%20inversions%20when%20M1-M2%20flips%20to%20-11.0%20points%7CSlope-Gated%201%201.5%20Spread%3A%3A-16%25%20max%20drawdown%3B%20exiting%20when%20VIX_spot%20%3E%20VX1%20avoids%2074%25%20of%20multi-day%20cascades%7CGated%20Spread%20%2B%20VIX%20Call%3A%3A-9.4%25%20max%20drawdown%20with%20~1.28%20net%20Sharpe%3B%20OTM%20VIX%20calls%20monetize%20extreme%20VVIX%20spikes&amp;metrics=NAKED%20MAX%20DD%3A%3A-92%25%2B%20Wipeout%3A%3AFeb%202018%20%2F%20Mar%202020%7C1%201%20CALENDAR%20DD%3A%3A-46%25%20Drawdown%3A%3AM1-M2%20Inversion%20Trap%7CGATED%20%2B%20CAP%20DD%3A%3A-9.4%25%20Max%20DD%3A%3ASurvives%20Panic%20Spikes%7CCFE%20VENUE%3A%3ACboe%20Futures%3A%3A%241%2C000%20Point%20Multiplier</image:loc>
      <image:title>Historical annualized Sharpe ratio and maximum drawdown across four VIX contango carry methodologies</image:title>
      <image:caption>VIX Futures M1–M2 Contango Roll Bleed &amp; Curve Carry Harvesting — Historical annualized Sharpe ratio and maximum drawdown across four VIX contango carry methodologies (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vix-futures-backwardation-spot-beta-jump-regimes</loc>
    <lastmod>2026-11-14T19:51:06.639Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vix-futures-backwardation-spot-beta-jump-regimes-hero-2026.png</image:loc>
      <image:title>VIX Term-Structure Backwardation, Spot-to-VX Beta &amp; Panic Mean Reversion — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (VIX Term Structure, Variance Swaps, Vol-of-Vol VVIX &amp; Tail Hedging): Exponential mean-reversion beta decay exp(−κτ) and Spot-minus-VX1 exhaustion signals.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Lifecycle%20of%20a%20VIX%20Backwardation%20Regime%20%26%20Normalization%20Trade&amp;subtitle=Distinguishing%20dangerous%20early-cascade%20inversions%20from%20exhausted%20climax%20inversions&amp;steps=Phase%201%20%20Flip%20Cross%3A%3ASpot%20VIX%20breaks%20%3E21%3B%20VX1%20crosses%20above%20VX2%20%28%2B0.5%20pt%29%E2%80%94DANGER%20ZONE%3A%20cascades%20accelerate!%7CPhase%202%20%20Panic%20Gap%3A%3AForced%20STANS%2FCTA%20selling%20spikes%20VIX%20%3E38%3B%20Spot%20-%20VX1%20basis%20widens%20past%20%2B10%20to%20%2B20%20pts%7CPhase%203%20%20VVIX%20Divergence%3A%3ASPX%20retests%20lows%2C%20but%20VVIX%20and%20VX1-VX2%20fail%20to%20make%20new%20highs%20%28vol%20exhaustion!%29%7CPhase%204%20%20Re-Contango%3A%3AVanna%20vol%20crush%20lifts%20SPX%3B%20VX1%20collapses%202x%20faster%20than%20VX3%20back%20into%20contango&amp;metrics=VX1%20BETA%20%2826d%29%3A%3A~0.63x%20Spot%3A%3ADampened%20by%20e%5E%28-%CE%BA%CF%84%29%7CVX3%20BETA%20%2882d%29%3A%3A~0.29x%20Spot%3A%3AAnchored%20to%20%CE%B8_Q%20%E2%89%88%2019.5%7CCLIMAX%20BASIS%3A%3ASpot%20-%20VX1%20%3E%20%2B12%3A%3A99th%20Percentile%20Stress%7CNORMALIZATION%20WIN%3A%3ABuy%20VX3%20%2F%20Sell%20VX1%3A%3APost-Divergence%20Trade</image:loc>
      <image:title>Four-phase lifecycle of a VIX backwardation shock from contango break to VVIX exhaustion and re-steepening</image:title>
      <image:caption>VIX Term-Structure Backwardation, Spot-to-VX Beta &amp; Panic Mean Reversion — Four-phase lifecycle of a VIX backwardation shock from contango break to VVIX exhaustion and re-steepening (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Subsequent%2020-Day%20Market%20Behavior%20by%20Spot-Minus-VX1%20Basis%20Bucket&amp;subtitle=Historical%20VX1%20change%20and%20S%26P%20500%20rebound%20conditioned%20on%20Spot%20VIX%20minus%20VX1%20spread&amp;steps=Normal%20%28-1.5%20to%20-0.5%29%3A%3ACalm%20contango%3B%20VX1%20drifts%20down%20-0.85%20pts%2Fmo%20along%20standard%20VRP%20carry%20curve%7CEarly%20Flip%20%28%2B0.5%20to%20%2B3%29%3A%3ABimodal%20hazard!%2038%25%20probability%20of%20deeper%20vol%20spike%20over%20next%205%20sessions%E2%80%94stay%20hedged!%7CAcute%20Stress%20%28%2B4%20to%20%2B9%29%3A%3AElevated%20volatility%3B%20wait%20for%20VVIX%20peak%20and%20intraday%20SPX%20Vanna%20reversal%20confirmation%7CClimax%20%28%3E%20%2B10.0%20Pts%29%3A%3A89%25%20win%20rate%20on%20VX1%20compression%20%28-7.4%20pts%20avg%2020d%20drop%29%20as%20acute%20liquidity%20panic%20clears!&amp;metrics=EARLY%20FLIP%20HAZARD%3A%3A38%25%20Escalation%3A%3ANever%20Short%20Blindly!%7CCLIMAX%20%3E%2B10%20WIN%3A%3A89%25%20Reversion%3A%3A-7.4%20VX1%20Pts%20in%2020d%7CCONFIRMATION%3A%3AVVIX%20Roll-Over%3A%3AVol-of-Vol%20Leads%20VIX%7CFCM%20EXECUTION%3A%3ACFE%20%2F%20CFTC%3A%3ARegulated%20VX%20Spreads</image:loc>
      <image:title>Forward 20-day S&amp;P 500 and VX1 returns following four levels of Spot-minus-VX1 backwardation basis</image:title>
      <image:caption>VIX Term-Structure Backwardation, Spot-to-VX Beta &amp; Panic Mean Reversion — Forward 20-day S&amp;P 500 and VX1 returns following four levels of Spot-minus-VX1 backwardation basis (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/otc-spx-variance-swap-vega-notional-convexity</loc>
    <lastmod>2026-11-14T19:54:13.918Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/otc-spx-variance-swap-vega-notional-convexity-hero-2026.png</image:loc>
      <image:title>OTC S&amp;P 500 Variance Swaps: Vega-to-Variance Notional &amp; Convexity Math — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (VIX Term Structure, Variance Swaps, Vol-of-Vol VVIX &amp; Tail Hedging): Constant dollar gamma across all spot levels and quadratic payout acceleration in crashes.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Bank%20Dealer%20Replication%20%26%20Hedging%20of%20an%20OTC%20SPX%20Variance%20Swap&amp;subtitle=How%20static%201%2FK%C2%B2%20listed%20SPX%20strips%20%2B%20daily%20CME%20ES%20hedges%20manufacture%20pure%20realized%20variance&amp;steps=1.%20ISDA%20Execution%3A%3AClient%20buys%20%24100k%20Vega%20%28%243%2C125%20Var%29%206M%20SPX%20variance%20swap%20at%20K_vol%20%3D%2016.00%7C2.%201%2FK%C2%B2%20Strip%20Hedge%3A%3ADealer%20buys%20OTM%20Cboe%20SPX%20puts%20%26%20calls%20weighted%20by%20%CE%94K%20%2F%20K%C2%B2%20across%20maturity%20T%7C3.%20Constant%20%24Gamma%3A%3ACombined%201%2FK%C2%B2%20strip%20maintains%20constant%20Dollar%20Gamma%20%28%246%2C250%20per%201%25%C2%B2%29%20at%20ALL%20spot%20levels!%7C4.%20Daily%20Close%20ES%3A%3ADealer%20rehedges%20delta%20daily%20at%2016%3A00%20ET%20close%2C%20accruing%20exact%20%28%CE%94S%2FS%29%C2%B2%20realized%20variance&amp;metrics=DOWNSIDE%20LOSS%20CAP%3A%3A-K_vol%C2%B2%20%C3%97%20N_var%3A%3A-%24800k%20Max%20%40%20%CF%83_real%20%3D%200!%7CUPSIDE%20%40%203x%20STRIKE%3A%3A%2B8%C2%B7K_vol%C2%B2%C2%B7N_var%3A%3A%2B%246.40M%20%40%2048v%20vs%2016v%7CDOLLAR%20GAMMA%3A%3A2%20%C2%B7%20N_var%20%2F%20252%3F%3A%3AInvariant%20to%20Spot%20Drift!%7CDIVIDEND%20ADJUST%3A%3AISDA%20Cash%20Div%3A%3AEx-Div%20Drop%20Excluded%2FAdj</image:loc>
      <image:title>Dealer replication and daily delta-hedging workflow for an OTC S&amp;P 500 variance swap</image:title>
      <image:caption>OTC S&amp;P 500 Variance Swaps: Vega-to-Variance Notional &amp; Convexity Math — Dealer replication and daily delta-hedging workflow for an OTC S&amp;P 500 variance swap (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Dynamic%20Vega%20Scaling%20Inside%20a%20%24100k%20Initial%20SPX%20Variance%20Swap%20%28K%20%3D%2016%29&amp;subtitle=Instantaneous%20%E2%88%82Payoff%2F%E2%88%82%CF%83%20%3D%20N_vega%20%C2%B7%20%28%CF%83%20%2F%20K_vol%29%20as%20volatility%20compresses%20or%20explodes&amp;steps=%CF%83%20%3D%208.0%20%28Dead%20Calm%29%3A%3A%2450%2C000%2Fpt%20instantaneous%20Vega!%20Variance%20swap%20automatically%20halves%20exposure%20in%20calm%20declines%7C%CF%83%20%3D%2016.0%20%28At%20Strike%29%3A%3A%24100%2C000%2Fpt%20instantaneous%20Vega%3B%20matches%20linear%20volatility%20swap%20tangent%20right%20at%20entry%7C%CF%83%20%3D%2032.0%20%28Correction%29%3A%3A%24200%2C000%2Fpt%20instantaneous%20Vega%20%282.0x%20initial!%29%3B%20automatically%20gears%20up%20into%20selloff%7C%CF%83%20%3D%2064.0%20%282020%20Crash%29%3A%3A%24400%2C000%2Fpt%20instantaneous%20Vega%20%284.0x%20initial!%29%E2%80%94why%20uncapped%20short%20sellers%20blow%20up!&amp;metrics=VEGA%20%40%200.5x%20K%3A%3A0.50x%20N_vega%3A%3AAuto%20De-Gears%20in%20Calm%7CVEGA%20%40%202.0x%20K%3A%3A2.00x%20N_vega%3A%3AAuto%20Gears%20in%20Stress%7CVEGA%20%40%204.0x%20K%3A%3A4.00x%20N_vega%3A%3AUncapped%20Seller%20Hazard%7CCAP%20EVOLUTION%3A%3A2.5x%20Cap%20Rule%3A%3ASee%20Next%20Desk%20Note!</image:loc>
      <image:title>Effective dollar vega exposure of a $100k initial vega variance swap as volatility moves from 8 to 64</image:title>
      <image:caption>OTC S&amp;P 500 Variance Swaps: Vega-to-Variance Notional &amp; Convexity Math — Effective dollar vega exposure of a $100k initial vega variance swap as volatility moves from 8 to 64 (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/capped-25x-vs-uncapped-variance-swap-crash-risk</loc>
    <lastmod>2026-11-14T19:46:41.261Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/capped-25x-vs-uncapped-variance-swap-crash-risk-hero-2026.png</image:loc>
      <image:title>Capped (2.5× Strike) vs Uncapped Variance Swaps: Left-Tail Gap Risk — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (VIX Term Structure, Variance Swaps, Vol-of-Vol VVIX &amp; Tail Hedging): Eliminating ln(0) bankruptcy singularities and cap-mismatch traps on variance &amp; dispersion books.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Uncapped%20Singularity%20vs%202.5%C3%97%20Capped%20Variance%20Risk%20Architecture&amp;subtitle=How%20capping%20realized%20vol%20at%202.5x%20strike%20converts%20infinite%20gap%20risk%20into%20bounded%20credit%20margin&amp;steps=Uncapped%20Trap%3A%3A-90%25%20equity%20crash%20or%20SPX%20limit-down%20breaks%201%2FK%C2%B2%20strip%20below%20lowest%20listed%20K_min%20strike!%7C2.5x%20Cap%20Clause%3A%3AISDA%20confirmation%20caps%20%CF%83_real%C2%B2%20at%206.25%20*%20K_cap%C2%B2%2C%20locking%20max%20seller%20loss%20at%202.625*K*N_vega%7CCap%20Strike%20Pricing%3A%3APrice%20E%5EQ%5B%28RV%20-%206.25*K%C2%B2%29%E2%81%BA%5D%20via%20SLV%20%2B%20VVIX%20jump%20model%3B%20discount%20K_cap%20by%200.5-1.3v%7CDispersion%20Match%3A%3AALWAYS%20match%202.5x%20Cap%20on%20short%20SPX%20index%20leg%20against%202.5x%20Cap%20on%20single-stock%20legs!&amp;metrics=UNCAPPED%20MAX%20LOSS%3A%3AUnbounded%20%28%E2%88%9E%29%3A%3AAs%20S_t%20Approaches%20%240.00%7C2.5x%20MAX%20LOSS%3A%3A2.625%C2%B7K%C2%B7N_vega%3A%3A%243.99M%20%40%20K%3D15.2%2C%20%24100k%7CCRASH%20SAVING%20%4062v%3A%3A-64.4%25%20Loss%3A%3A%243.99M%20vs%20%2411.21M%7CDISPERSION%20RULE%3A%3ACap-for-Cap%3A%3APrevents%202020%20Wedge</image:loc>
      <image:title>Risk architecture comparing uncapped log-strip replication failure against 2.5x capped variance swap dynamic VIX tail hedging</image:title>
      <image:caption>Capped (2.5× Strike) vs Uncapped Variance Swaps: Left-Tail Gap Risk — Risk architecture comparing uncapped log-strip replication failure against 2.5x capped variance swap dynamic VIX tail hedging (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Fair%20Strike%20Discount%20%28K_uncapped%20%E2%88%92%20K_capped2.5x%29%20by%20VVIX%20Regime&amp;subtitle=Vol-point%20value%20of%20the%20embedded%20%3E2.5x%20variance%20call%20on%206-month%20S%26P%20500%20variance%20swaps&amp;steps=Low%20VVIX%20%28%3C80%29%20%2F%20Low%20SKEW%3A%3A-0.42%20vol%20pt%20cap%20discount%3B%20quiet%20vol-of-vol%20assigns%20low%20probability%20to%20%3E2.5x%20realized%20vol%7CNormal%20%28VVIX%2090-100%29%3A%3A-0.78%20vol%20pt%20cap%20discount%3B%20standard%20institutional%20SPX%20capped%20vs%20uncapped%20basis%7CElevated%20%28VVIX%20115-130%29%3A%3A-1.45%20vol%20pt%20cap%20discount%3B%20heavy%20demand%20for%20OTM%20VIX%20calls%20bids%20up%20%3E2.5x%20variance%20tail!%7CCrisis%20%28VVIX%20%3E%20145%29%3A%3A-2.60%2B%20vol%20pt%20cap%20discount%3B%20buyers%20pay%20substantial%20premium%20for%20uncapped%20crash%20protection&amp;metrics=CALM%20CAP%20VALUE%3A%3A0.42%20Vol%20Pts%3A%3ACheap%20Uncapped%20Upgrade%7CSTRESS%20CAP%20VALUE%3A%3A1.45%20-%202.60v%3A%3ARich%20Tail%20Optionality%7CHEDGING%20PROXY%3A%3AOTM%20VIX%20Calls%3A%3ADynamic%20Cap%20Replication%7CMARGIN%20REGIME%3A%3AISDA%20SIMM%3A%3ACurvature%20Margin%20Credit</image:loc>
      <image:title>Capped-to-uncapped SPX variance strike discount in vol points across four VVIX and Cboe SKEW regimes</image:title>
      <image:caption>Capped (2.5× Strike) vs Uncapped Variance Swaps: Left-Tail Gap Risk — Capped-to-uncapped SPX variance strike discount in vol points across four VVIX and Cboe SKEW regimes (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/corridor-variance-down-variance-swap-replication</loc>
    <lastmod>2026-11-14T19:46:37.350Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/corridor-variance-down-variance-swap-replication-hero-2026.png</image:loc>
      <image:title>Corridor Variance &amp; Conditional Down-Variance Swaps: Targeted Crash Hedges — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (VIX Term Structure, Variance Swaps, Vol-of-Vol VVIX &amp; Tail Hedging): Static 1/K2 put-only replication below barrier B: zero bleed above barrier, full convexity in crashes.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Downside%20Corridor%20Variance%20Replication%20%26%20Soft-Barrier%20Execution&amp;subtitle=Restricting%20the%201%2FK%C2%B2%20option%20strip%20strictly%20below%20barrier%20B%20with%20a%20%C2%B11%25%20linear%20ramp&amp;steps=1.%20Barrier%20Selection%3A%3ASet%20downside%20activation%20barrier%20B%20%3D%2092%25-95%25%20of%20spot%20%28e.g.%2C%20SPX%205%2C500%20vs%205%2C850%29%7C2.%20Soft%20Ramp%20Band%3A%3ALinearly%20fade%20indicator%20weight%20from%200%20at%205%2C560%20to%201%20at%205%2C440%20to%20smooth%20boundary%20gamma%7C3.%20Truncated%201%2FK%C2%B2%20Put%3A%3ADealer%20buys%20ONLY%20OTM%20Cboe%20SPX%20puts%20with%20K%20%E2%89%A4%205%2C560%20weighted%20by%20%CE%94K%20%2F%20K%C2%B2%7C4.%20Regime%20Payout%3A%3AZero%20accrual%20in%20bull%20grinds%3B%20full%20quadratic%20variance%20capture%20once%20SPX%20enters%20bear%20zone!&amp;metrics=STRIKE%20REDUCTION%3A%3A16.2v%20%E2%86%92%208.4v%3A%3A-73%25%20Variance%20Points%7CBULL%20BLEED%20SAVED%3A%3A-54%25%20Cheaper%3A%3AWhen%20SPX%20Stays%20%3E%20B%7CCRASH%20CAPTURE%3A%3A~92%25%20of%20Tail%3A%3AOnce%20SPX%20Drops%20%3C%20B%7COCCUPATION%20RISK%3A%3A0%25%20%28Corridor%29%3A%3AFixed%20N_exp%20Denominator</image:loc>
      <image:title>Comparison of strike integration domain and barrier hedging mechanics for a Downside Corridor Variance Swap</image:title>
      <image:caption>Corridor Variance &amp; Conditional Down-Variance Swaps: Targeted Crash Hedges — Comparison of strike integration domain and barrier hedging mechanics for a Downside Corridor Variance Swap (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Tail-Hedge%20Efficiency%20Ratio%3A%20Crash%20Payout%20Divided%20by%201-Year%20Bull%20Bleed&amp;subtitle=Multiple%20of%201-year%20bull-market%20carry%20bleed%20recovered%20during%20a%20-22%25%20SPX%20%2F%2048-vol%20crash&amp;steps=Rolling%2030d%20ATM%20Puts%3A%3A3.1x%20bleed%20recovery%3B%20continuous%20ATM%20theta%20erodes%20capital%20rapidly%20during%20flat%20bull%20years%7CFull%20SPX%20Variance%20Swap%3A%3A4.6x%20bleed%20recovery%3B%20captures%2048v%20quadratic%20surge%2C%20penalized%20by%2016.2v%20full-strip%20entry%7C93%25%20Down-Corridor%20Var%3A%3A8.4x%20bleed%20recovery!%20Cuts%20peacetime%20variance%20bleed%20%3E50%25%20while%20retaining%20crash%20convexity%7CLong%20Down%20%2F%20Short%20Up%3A%3A11.9x%20bleed%20recovery%3B%20selling%20rich%20call-corridor%20variance%20subsidizes%20crash%20corridor!&amp;metrics=FULL%20VAR%20RATIO%3A%3A4.6x%20Bleed%3A%3APays%20Full%20Strip%20VRP%7CDOWN-CORRIDOR%3A%3A8.4x%20Bleed%3A%3A%2B83%25%20Higher%20Efficiency%7CUP%2FDOWN%20SKEW%20SWAP%3A%3A11.9x%20Bleed%3A%3ASelf-Financing%20Tail%7CEXECUTION%20VENUE%3A%3AISDA%20%2B%20Cboe%3A%3AHedged%20in%20Listed%20SPX</image:loc>
      <image:title>Carry-to-crash convexity efficiency ratio across ATM puts full variance swaps corridor variance and skew swaps</image:title>
      <image:caption>Corridor Variance &amp; Conditional Down-Variance Swaps: Targeted Crash Hedges — Carry-to-crash convexity efficiency ratio across ATM puts full variance swaps corridor variance and skew swaps (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vvix-vol-of-vol-jensen-inequality-vix-futures-wedge</loc>
    <lastmod>2026-11-15T04:18:33.048Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vvix-vol-of-vol-jensen-inequality-vix-futures-wedge-hero-2026.png</image:loc>
      <image:title>Cboe VVIX Vol-of-Vol &amp; Jensen’s Inequality: The VIX Futures Convexity Wedge — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (VIX Term Structure, Variance Swaps, Vol-of-Vol VVIX &amp; Tail Hedging): Carr-Madan g′′(K) = 2 spanning: bridging VIX futures, VIX call skew, and forward SPX variance.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=The%20SPX%20Forward%20Variance%20vs%20VIX%20Option%20Strip%20Arbitrage%20Triangle&amp;subtitle=Enforcing%20no-arbitrage%20consistency%20between%20S%26P%20500%20calendar%20variance%20and%20Cboe%20VIX%20call%20skew&amp;steps=Leg%20A%20%20SPX%20Fwd%20Var%3A%3ASynthesize%20K_fwd%C2%B2%28T%2C%20T%2B30d%29%20%3D%20%5B%20%28T%2B30%29%CF%83%C2%B2_%7BT%2B30%7D%20-%20T%C2%B7%CF%83%C2%B2_T%20%5D%20%2F%2030%20from%20SPX%201%2FK%C2%B2%20strips%7CLeg%20B%20%20CFE%20VX%20Future%3A%3AObserve%20linear%20forward%20expectation%20F_VX%28T%29%20%3D%20E%5EQ%5BVIX_T%5D%20on%20Cboe%20Futures%20Exchange%7CLeg%20C%20%202%C3%97%20VIX%20Strip%3A%3AIntegrate%202*e%5E%28rT%29*Q_VIX%28K%29%20%CE%94K%20across%20VIX%20puts%20and%20right-skewed%20OTM%20VIX%20calls%7CBasis%20Execution%3A%3ATrade%20Leg%20A%20vs%20%28Leg%20B%C2%B2%20%2B%20Leg%20C%29%20whenever%20convexity%20wedge%20diverges%20%3E0.45%20vol%20pts!&amp;metrics=SPX%20STRIP%20WEIGHT%3A%3A%CE%94K%20%2F%20K%C2%B2%3A%3ALeft-Wing%20Put%20Heavy%7CVIX%20STRIP%20WEIGHT%3A%3A2%20%C2%B7%20%CE%94K%20%28Flat!%29%3A%3ARight-Wing%20Call%20Heavy%7CVVIX%20LOG%20WEIGHT%3A%3A%CE%94K%20%2F%20K%C2%B2%20on%20VIX%3A%3AOfficial%20VVIX%20Formula%7CTYPICAL%20BASIS%3A%3A%C2%B10.35%20Vol%20Pts%3A%3AInstitutional%20Arb%20Band</image:loc>
      <image:title>Cross-market arbitrage triangle linking SPX forward variance calendars CFE VX futures and equal-weighted VIX call strips</image:title>
      <image:caption>Cboe VVIX Vol-of-Vol &amp; Jensen’s Inequality: The VIX Futures Convexity Wedge — Cross-market arbitrage triangle linking SPX forward variance calendars CFE VX futures and equal-weighted VIX call strips (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Jensen%20Concavity%20Wedge%20%28K_fwd_SPX%20%E2%88%92%20F_VX%29%20by%20Maturity%20%26%20VVIX&amp;subtitle=Vol-point%20discount%20of%20linear%20VIX%20futures%20below%20forward%20SPX%20variance%20swap%20strikes&amp;steps=VX1%20%2815d%2C%20VVIX%2085%29%3A%3A%2B0.24%20vol%20pt%20wedge%3B%20short%20time%20horizon%20keeps%20Var%28VIX_T%29%20small%20near%20expiration%7CVX2%20%2845d%2C%20VVIX%2092%29%3A%3A%2B0.82%20vol%20pt%20wedge%3B%20standard%20second-month%20Jensen%20discount%20in%20normal%20regimes%7CVX4%20%28105d%2C%20VVIX%2098%29%3A%3A%2B1.96%20vol%20pt%20wedge!%20Significant%20concavity%20gap%20across%20quarterly%20forward%20horizons%7CVX3%20Stress%20%28VVIX%20140%29%3A%3A%2B3.45%20vol%20pt%20wedge!%20Exploding%20VIX%20call%20wing%20inflates%20E%5BVIX%C2%B2%5D%20far%20above%20F_VX%C2%B2&amp;metrics=15-DAY%20WEDGE%3A%3A%2B0.24%20Vol%20Pts%3A%3AConverges%20to%200%20at%20VRO%7C105-DAY%20WEDGE%3A%3A%2B1.96%20Vol%20Pts%3A%3ALinear%20Growth%20in%20T%7CSTRESS%20WEDGE%3A%3A%2B3.45%20Vol%20Pts%3A%3AQuadratic%20in%20VVIX!%7CCROSS-MARGIN%3A%3AOCC%20%2B%20CFE%3A%3AEnables%20Arb%20Capital</image:loc>
      <image:title>Magnitude of Jensen concavity discount K_fwd minus VX future across four maturities and VVIX levels</image:title>
      <image:caption>Cboe VVIX Vol-of-Vol &amp; Jensen’s Inequality: The VIX Futures Convexity Wedge — Magnitude of Jensen concavity discount K_fwd minus VX future across four maturities and VVIX levels (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vix-call-spread-collars-vs-spx-put-tail-hedges</loc>
    <lastmod>2026-11-15T04:26:34.216Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vix-call-spread-collars-vs-spx-put-tail-hedges-hero-2026.png</image:loc>
      <image:title>VIX 1×2 Call Ratios &amp; Collars vs Direct SPX OTM Put Tail Hedges — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (VIX Term Structure, Variance Swaps, Vol-of-Vol VVIX &amp; Tail Hedging): Balancing fast-crash VIX call convexity against slow-grind SPX put certainty.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Dual-Regime%20Institutional%20Equity%20Tail-Hedging%20Architecture&amp;subtitle=Pairing%2040%25%20VIX%20Call-Spread%20Collars%20%28shock%20monetization%29%20with%2060%25%2090d%20SPX%20Put%20Spreads%20%28grind%20floor%29&amp;steps=1.%20Fast-Shock%20Sleeve%3A%3AAllocate%2040%25%20budget%20to%2045-60%20DTE%20VIX%2024%2F44%20Call%20Spreads%20%28optional%2014.5P%20bull-floor%29%7C2.%20Slow-Grind%20Sleeve%3A%3AAllocate%2060%25%20budget%20to%20rolling%2090-DTE%20SPX%2092%25%2F78%25%20Put%20Debit%20Spreads%7C3.%20Shock%20Monetize%20Rule%3A%3AWhen%20VIX%20%3E%2038%20%26%20Spot-VX1%20%3E%20%2B10%2C%20cash%20out%2075%25%20of%20VIX%20calls%20and%20roll%20into%20lower%20SPX%20puts!%7C4.%20Bear%20Grind%20Capture%3A%3AIf%20SPX%20drops%20-20%25%20calmly%20like%202022%20%28VIX%20%3C%2034%29%2C%2092%2F78%20SPX%20put%20spreads%20lock%20intrinsic%20value&amp;metrics=MAR%202020%20SHOCK%3A%3AVIX%20Sleeve%2028x%3A%3AInstant%20Liquidity%20Spike%7C2022%20BEAR%20GRIND%3A%3ASPX%20Sleeve%204.8x%3A%3AZero%20VIX%20Basis%20Failure!%7CANNUAL%20DRAG%3A%3A-65%20to%20-85%20bps%3A%3ASkew-Subsidized%20Cost%7CBENCHMARK%20INDEX%3A%3ACboe%20VXTH%20%2F%20PPUT%3A%3AListed%20Overlay%20Indices</image:loc>
      <image:title>Two-pillar institutional tail-hedging architecture combining VIX call collars for sudden crashes and SPX put spreads for grinding bear markets</image:title>
      <image:caption>VIX 1×2 Call Ratios &amp; Collars vs Direct SPX OTM Put Tail Hedges — Two-pillar institutional tail-hedging architecture combining VIX call collars for sudden crashes and SPX put spreads for grinding bear markets (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=10-Year%20Portfolio%20Overlay%20Comparison%20%28%24100M%20S%26P%20500%20Mandate%29&amp;subtitle=Evaluating%20net%20CAGR%20drag%20and%20worst%20peak-to-trough%20drawdown%20across%20four%20overlay%20designs&amp;steps=Unhedged%20S%26P%20500%3A%3AZero%20hedge%20drag%2C%20but%20suffers%20full%20-33.9%25%20%282020%29%20and%20-25.4%25%20%282022%29%20peak-to-trough%20drawdowns%7CPure%20Naive%205%25%20OTM%20Puts%3A%3ACuts%20max%20DD%20to%20-14.2%25%2C%20but%20-215%20bps%2Fyr%20skew%20%2B%20VRP%20bleed%20drags%2010-yr%20CAGR%20severely%7CPure%20VIX%20Call%20Overlay%3A%3ALow%20-55%20bps%2Fyr%20bleed%20%26%20crushes%202020%20DD%20%28-11%25%29%2C%20yet%20leaves%202022%20slow%20bear%20%28-24%25%29%20exposed!%7CHybrid%20%28SPX%2092%2F78P%20%2B%20VIX%29%3A%3A-78%20bps%2Fyr%20bleed%2C%20caps%20BOTH%202020%20%28-12.8%25%29%20%26%202022%20%28-15.6%25%29%2C%20and%20boosts%20rebalance%20CAGR!&amp;metrics=NAIVE%20PUT%20BLEED%3A%3A-215%20bps%20%2F%20Yr%3A%3AErodes%20Long-Term%20Compound%7CPURE%20VIX%202022%20DD%3A%3A-24.1%25%20Exposed%3A%3ASlow-Grind%20Basis%20Trap%7CHYBRID%20MAX%20DD%3A%3A-15.6%25%20Worst%3A%3AProtects%20Shock%20%26%20Grind%7CTAX%20TREATMENT%3A%3AIRC%20Sec%201256%3A%3A60%2F40%20Cap%20Gains%20on%20Both</image:loc>
      <image:title>Ten-year compounded Sharpe ratio and max drawdown of unhedged S&amp;P 500 versus SPX put hedge VIX hedge and 60-40 hybrid</image:title>
      <image:caption>VIX 1×2 Call Ratios &amp; Collars vs Direct SPX OTM Put Tail Hedges — Ten-year compounded Sharpe ratio and max drawdown of unhedged S&amp;P 500 versus SPX put hedge VIX hedge and 60-40 hybrid (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vix1d-vs-vix9d-vix3m-event-term-structure-kinks</loc>
    <lastmod>2026-11-14T19:50:22.453Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vix1d-vs-vix9d-vix3m-event-term-structure-kinks-hero-2026.png</image:loc>
      <image:title>Ultra-Short VIX1D vs VIX9D, VIX &amp; VIX3M Event Term-Structure Kinks — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (VIX Term Structure, Variance Swaps, Vol-of-Vol VVIX &amp; Tail Hedging): Separating 1-day binary macro event kinks from multi-month systemic inversions.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Spot%20Volatility%20Curve%20Diagnostic%20Tree%20%28VIX1D%20%E2%86%92%20VIX3M%29&amp;subtitle=Separating%20tradeable%201-day%20Vanna%20crushes%20from%20dangerous%20multi-month%20de-risking%20cascades&amp;steps=1.%20Read%204-Point%20Curve%3A%3ASample%20VIX1D%20%281d%29%2C%20VIX9D%20%289d%29%2C%20VIX%20%2830d%29%2C%20and%20VIX3M%20%2893d%29%20at%2015%3A45%20ET%20close%7C2.%20Front%20Kink%20Ratio%3A%3ACompute%20VIX1D%20%2F%20VIX%3B%20if%20%3E%201.40%20ahead%20of%20CPI%2FFed%2C%20extract%20exact%20J_eventbps%20jump%7C3.%20Back%20Structural%20Test%3A%3ACheck%20VIX%20%2F%20VIX3M%3A%20%3C%200.95%20confirms%20calm%20macro%20backdrop%3B%20%3E%201.05%20warns%20systemic%20break!%7C4.%20SPXW%20Execution%3A%3AEvent%20Kink%20-%3E%20sell%201DTE%20%2F%20buy%2014DTE%20SPXW%20calendar%3B%20Systemic%20-%3E%20hold%20long%20gamma!&amp;metrics=1-DAY%20JUMP%20DILUTION%3A%3A21x%20vs%2030d%20VIX%3A%3A%2B7.9v%20on%201D%20vs%20%2B0.4v%20VIX%7CCALM%20VIX%20%2F%20VIX3M%3A%3A0.84x%20-%200.93x%3A%3AHealthy%20Back%20Contango%7CCRISIS%20VIX%20%2F%20VIX3M%3A%3A1.08x%20-%201.45x%3A%3AStructural%20Panic%20Signal%7CPOST-PRINT%20CRUSH%3A%3A-45%25%20VIX1D%20Drop%3A%3AWithin%2015%20Mins%20of%20Print</image:loc>
      <image:title>Diagnostic decision tree comparing VIX1D VIX9D VIX and VIX3M ratios to classify localized event kinks vs systemic regime shifts</image:title>
      <image:caption>Ultra-Short VIX1D vs VIX9D, VIX &amp; VIX3M Event Term-Structure Kinks — Diagnostic decision tree comparing VIX1D VIX9D VIX and VIX3M ratios to classify localized event kinks vs systemic regime shifts (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Post-Catalyst%20VIX1D%20Collapse%20%26%20SPXW%20Calendar%20Capture%20%28VIX%2FVIX3M%20%3C%200.95%29&amp;subtitle=Behavior%20from%20T%E2%88%921%2015%3A55%20ET%20entry%20to%20T%2B0%2010%3A30%20ET%20exit%20on%20scheduled%20CPI%20%26%20FOMC%20event%20kinks&amp;steps=Mild%20Kink%20%281.2x-1.4x%29%3A%3A-28%25%20average%20VIX1D%20drop%20post-print%3B%20modest%20%2B0.8%20vol%20pt%20net%20edge%20on%201d%2F14d%20SPXW%20calendar%7CStandard%20CPI%20%281.4x-1.7x%29%3A%3A-44%25%20average%20VIX1D%20collapse%20by%2010%3A00%20ET%3B%20triggers%20%2B%242.5B%2B%20mechanical%20Vanna%20SPX%20bid%7CExtreme%20Fed%20%28%3E1.75x%29%3A%3A-53%25%20average%20VIX1D%20collapse%20post-Powell%20Q%26A%3B%2076%25%20win%20rate%20on%20long%2014d%20%2F%20short%201d%20calendars%7CSystemic%20Trap%20%28VIX%3EVIX3M%29%3A%3AAvoid%20shorting%20front%20vol!%20Unscheduled%20headlines%20re-inflate%20VIX1D%20repeatedly%20intraday&amp;metrics=AVG%20CPI%20CRUSH%3A%3A-44%25%20VIX1D%3A%3A08%3A30%20to%2010%3A00%20ET%7CFED%20Q%26A%20CRUSH%3A%3A-53%25%20VIX1D%3A%3A14%3A00%20to%2015%3A30%20ET%7CCALENDAR%20WIN%20%25%3A%3A76%25%20Positive%3A%3AWhen%20VIX%2FVIX3M%20%3C%200.95%7CEXECUTION%20TOOL%3A%3ASPXW%20Calendars%3A%3ADefined-Debit%20Spreads</image:loc>
      <image:title>Average overnight-to-close VIX1D crush and SPXW calendar spread return following high VIX1D/VIX event kinks</image:title>
      <image:caption>Ultra-Short VIX1D vs VIX9D, VIX &amp; VIX3M Event Term-Structure Kinks — Average overnight-to-close VIX1D crush and SPXW calendar spread return following high VIX1D/VIX event kinks (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/wednesday-vix-soq-settlement-auction-microstructure</loc>
    <lastmod>2026-11-14T19:47:03.655Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/wednesday-vix-soq-settlement-auction-microstructure-hero-2026.png</image:loc>
      <image:title>Wednesday Morning VIX SOQ Settlement (VRO) &amp; SPX Strip Auction Mechanics — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (VIX Term Structure, Variance Swaps, Vol-of-Vol VVIX &amp; Tail Hedging): Inside Wednesday 09:20–09:30 ET SPX opening strip auctions that fix expiring VIX contracts.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Wednesday%20Morning%20Cboe%20VRO%20Settlement%20Auction%20Timeline&amp;subtitle=Post-reform%20auction%20rules%20governing%20SPX%20settlement-strip%20strategy%20orders%20and%20imbalance%20offsets&amp;steps=09%2000%20ET%20VX%20Freeze%3A%3AExpiring%20VX1%20futures%20%26%20VIX%20options%20cease%20GTH%20trading%3B%20final%20unhedged%20positions%20locked%7C09%2020%2000%20ET%20Cutoff%3A%3AHard%20deadline%20to%20submit%2Fmodify%20non-imbalance%20SPX%20settlement-strip%20strategy%20orders!%7C09%2020-09%2030%20Imbalance%3A%3ACboe%20broadcasts%20live%20indicative%20VRO%20%26%20strike%20imbalances%3B%20MMs%20post%20offsetting%20liquidity%7C09%2030%2001%20ET%20VRO%20Fix%3A%3A30-day%20SPX%20series%20opens%20simultaneously%3B%20official%20VRO%20settles%20VX1%20%26%20VIX%20options%20in%20cash&amp;metrics=MATURITY%20INTERP%3A%3A0%25%20Needed!%3A%3AExact%2030.0-Day%20SPX%20Root%7CSTRATEGY%20LOCK%3A%3A09%3A20%20ET%20Sharp%3A%3APrevents%20Late%20Spoofing%7CCYCLE%20LENGTH%3A%3A28%20or%2035%20Days%3A%3A4-Wk%20vs%205-Wk%20Roll%20Cycle%7CJOINT%20REGULATORS%3A%3ASEC%20%2B%20CFTC%3A%3AOptions%20%2B%20Futures%20Audit</image:loc>
      <image:title>Wednesday morning Cboe VIX SOQ (VRO) auction timeline from 08:30 ET GTH close through 09:20 ET cutoff and 09:30 ET clearing</image:title>
      <image:caption>Wednesday Morning VIX SOQ Settlement (VRO) &amp; SPX Strip Auction Mechanics — Wednesday morning Cboe VIX SOQ (VRO) auction timeline from 08:30 ET GTH close through 09:20 ET cutoff and 09:30 ET clearing (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Empirical%20Wednesday%20%7CVRO%20%E2%88%92%20Tue%20VX1%20Close%7C%20Settlement%20Gap&amp;subtitle=Average%20absolute%20overnight%20VRO%20settlement%20surprise%20%28in%20VIX%20points%29%20across%20four%20market%20states&amp;steps=Calm%20Non-Event%20Wed%3A%3A0.32%20VIX%20pts%20average%20%20VRO%20-%20VX1%20%20gap%3B%20tight%20arbitrage%20strip%20competition%20pins%20clearing%7CHeavy%20VIX%20Call%20OI%20Pin%3A%3A0.58%20VIX%20pts%20average%20gap%3B%20dealers%20replicating%20expiring%20ITM%20VIX%20calls%20buy%20SPX%20put%20strips%7C08%2030%20ET%20Wed%20CPI%20Day!%3A%3A2.15%20VIX%20pts%20average%20gap!%20CPI%20drops%20at%2008%3A30%20ET%20right%20before%2009%3A00%20ET%20VX1%20freeze!%7CCrisis%20Volatility%20%28%3E30%29%3A%3A3.40%20VIX%20pts%20average%20gap%3B%20wide%20overnight%20Globex%20swings%20shift%20SPX%20ATM%20strikes%20before%20open&amp;metrics=CALM%20VRO%20GAP%3A%3A0.32%20Pts%20Avg%3A%3ATight%20Strip%20Arbitrage%7CCPI%20WED%20SURGE%3A%3A2.15%20Pts%20Avg%3A%3A08%3A30%20ET%20Macro%20Clash%7CCRISIS%20VRO%20GAP%3A%3A3.40%20Pts%20Avg%3A%3AWide%20SPX%20Auction%20Bands%7CSURVEILLANCE%3A%3ACboe%20%2B%20CFTC%3A%3ACross-Venue%20Audit%20Trail</image:loc>
      <image:title>Historical distribution of absolute VRO minus prior-close VX1 settlement basis across calm and stressed expirations</image:title>
      <image:caption>Wednesday Morning VIX SOQ Settlement (VRO) &amp; SPX Strip Auction Mechanics — Historical distribution of absolute VRO minus prior-close VX1 settlement basis across calm and stressed expirations (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/eurex-vstoxx-vs-cboe-vix-cross-atlantic-vol-spreads</loc>
    <lastmod>2026-11-14T19:46:31.746Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/eurex-vstoxx-vs-cboe-vix-cross-atlantic-vol-spreads-hero-2026.png</image:loc>
      <image:title>Eurex VSTOXX (FVS) vs Cboe VIX (VX) Cross-Atlantic Volatility Spreads — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (VIX Term Structure, Variance Swaps, Vol-of-Vol VVIX &amp; Tail Hedging): Arbitraging European 50-stock cyclical/financial volatility against U.S. 500-stock tech volatility.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Cross-Atlantic%20Eurex%20FVS%20vs%20Cboe%20VX%20Relative-Value%20Workflow&amp;subtitle=Synchronizing%20European%20and%20U.S.%20volatility%20execution%20during%20the%2009%3A30%E2%80%9311%3A30%20ET%20overlap&amp;steps=1.%20Z-Score%20Signal%3A%3AMonitor%20FVS2%20-%20VX2%20spread%20vs%201-yr%20rolling%20mean%20%28%2B1.6v%29%3B%20trigger%20at%20%C2%B12.2%20SD%20extremes%7C2.%20FX%20%26%20Beta%20Ratio%3A%3AScale%20~9.25x%20FVS%20per%201%20VX%20at%20EUR%2FUSD%201.08%2C%20adjusted%20by%20rolling%2060-day%20%CE%94FVS%2F%CE%94VX%20beta%7C3.%20Overlap%20Execution%3A%3ALeg%20spread%20between%2009%3A30%20ET%20and%2011%3A25%20ET%20when%20both%20SX5E%20cash%20%26%20SPX%20cash%20are%20open!%7C4.%20Daily%20EUR%20Sweep%3A%3ASweep%20realized%20EUR%20variation%20margin%20to%20USD%20daily%20to%20neutralize%20FX%20quanto%20correlation!&amp;metrics=NORMAL%20FVS%20-%20VX%3A%3A%2B1.2%20to%20%2B2.4v%3A%3A50-Stock%20Concentration%7CEU%20SHOCK%20EXTREME%3A%3A%3E%20%2B5.5%20Vol%20Pts%3A%3AShort%20FVS%20%2F%20Long%20VX%7CUS%20TECH%20SHOCK%3A%3A%3C%20-1.8%20Vol%20Pts%3A%3ALong%20FVS%20%2F%20Short%20VX%7COVERLAP%20WINDOW%3A%3A120%20Mins%20%2F%20Day%3A%3A15%3A30-17%3A30%20Frankfurt</image:loc>
      <image:title>Cross-Atlantic execution and FX variation-margin hedging workflow for Eurex FVS versus Cboe VX spreads</image:title>
      <image:caption>Eurex VSTOXX (FVS) vs Cboe VIX (VX) Cross-Atlantic Volatility Spreads — Cross-Atlantic execution and FX variation-margin hedging workflow for Eurex FVS versus Cboe VX spreads (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=VSTOXX-Minus-VIX%20Spread%20Behavior%20Across%20Macro%20Regimes%20%28Pts%29&amp;subtitle=Observed%20M2%20futures%20spread%20%28FVS2%20%E2%88%92%20VX2%29%20across%20European%20political%20vs%20U.S.%20tech%20shocks&amp;steps=Baseline%20Equilibrium%3A%3A%2B1.65%20pts%20median%20spread%3B%2050-stock%20SX5E%20carries%20slightly%20lower%20diversification%20than%20500-stock%20SPX%7CEU%20Sovereign%2FElection%3A%3A%2B5.80%20to%20%2B8.40%20pts!%20Regional%20European%20hedging%20spikes%20FVS%20while%20SPX%20stays%20insulated%7CUS%20Tech%20%2F%20Mag-7%20Dump%3A%3A-1.90%20to%20-3.40%20pts!%20Heavy%20Nasdaq%2FSPX%20tech%20weight%20drives%20VX%20above%20cyclical-heavy%20VSTOXX!%7CGlobal%20Systemic%20Crash%3A%3ABoth%20surge%20%3E40%3B%20US%20global%20hedge%20liquidity%20pushes%20VX%20slightly%20higher%2C%20compressing%20spread&amp;metrics=MEDIAN%20SPREAD%3A%3A%2B1.65%20Vol%20Pts%3A%3ALong-Run%20Structural%20Mean%7CMEAN-REV%20HALF-LIFE%3A%3A14%20Trading%20Days%3A%3ARegional%20Shock%20Decay%7C06%2000-09%2030%20RISK%3A%3A3.5-Hr%20Orphan%3A%3ARoll%20Out%20by%20T-2%20Mon!%7CREGULATORY%20PAIR%3A%3ABaFin%20%2B%20CFTC%3A%3AEurex%20Clearing%20%2B%20OCC</image:loc>
      <image:title>Historical VSTOXX minus VIX spread behavior across four regional and sector macro shock episodes</image:title>
      <image:caption>Eurex VSTOXX (FVS) vs Cboe VIX (VX) Cross-Atlantic Volatility Spreads — Historical VSTOXX minus VIX spread behavior across four regional and sector macro shock episodes (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/cme-sofr-swaption-move-spillover-into-equity-vix</loc>
    <lastmod>2026-11-14T19:47:24.931Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/cme-sofr-swaption-move-spillover-into-equity-vix-hero-2026.png</image:loc>
      <image:title>Cross-Asset Spillover: CME SOFR Bachelier Swaption Vol &amp; MOVE Into VIX — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (VIX Term Structure, Variance Swaps, Vol-of-Vol VVIX &amp; Tail Hedging): Why CME SOFR Bachelier swaption stress and Treasury repo shocks lead Cboe VIX breakouts.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Rates-to-Equity%20Volatility%20Contagion%20Pipeline%20%28SOFR%2FMOVE%20%E2%86%92%20VIX%29&amp;subtitle=How%20fixed-income%20Bachelier%20volatility%20shocks%20breach%20multi-asset%20VaR%20and%20ignite%20SPX%20put%20demand&amp;steps=1.%20Rates%20Vol%20Shock%3A%3AHot%20CPI%2C%20weak%2010Y%2F30Y%20auction%2C%20or%20Fed%20shift%20spikes%20CME%20SOFR%2FZN%20normal%20vol%20%2B25%20bps%7C2.%20Repo%20%26%20MBS%20Stress%3A%3AFICC%20Treasury%20haircuts%20tighten%3B%20MBS%20convexity%20desks%20pay%20fixed%20in%20swaps%2C%20amplifying%20move%7C3.%20VaR%20De-Grossing%3A%3AWith%20%CF%81_stock%2Cbond%20%3E%200%2C%20risk-parity%20%26%20CTA%20portfolio%20VaR%20breaches%20ceiling%20-%3E%20sell%20CME%20ES!%7C4.%20VIX%20Catch-Up%3A%3AEquity%20hedgers%20rush%20into%20SPX%20puts%203-8%20days%20later%3B%20VIX%20leaps%20%2B5%20to%20%2B11%20pts%20to%20re-couple!&amp;metrics=SIGNAL%20THRESHOLD%3A%3AZ_Rates-VIX%20%3E%201.8%3A%3ARates%20Rich%20%2F%20VIX%20Cheap%7CMEDIAN%20LEAD%20TIME%3A%3A5%20Trading%20Days%3A%3ABefore%20VIX%20Breakout%7CREGIME%20CONDITION%3A%3A%CF%81%28SPX%2C%20ZN%29%20%3E%20%2B0.2%3A%3AInflation%2FFiscal%20Regime%7CEXECUTION%20PAIR%3A%3ACME%20ZN%2FSR3%20%2B%20VX%3A%3AUnified%20FCM%20Clearing</image:loc>
      <image:title>Four-stage transmission channel from CME SOFR and Treasury volatility spikes through repo haircuts and risk-parity VaR into Cboe VIX</image:title>
      <image:caption>Cross-Asset Spillover: CME SOFR Bachelier Swaption Vol &amp; MOVE Into VIX — Four-stage transmission channel from CME SOFR and Treasury volatility spikes through repo haircuts and risk-parity VaR into Cboe VIX (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=10-Day%20Forward%20Cboe%20VIX%20Move%20by%20%28SOFR%2FMOVE%20%E2%88%92%20VIX%29%20Z-Score&amp;subtitle=Empirical%20VIX%20catch-up%20behavior%20when%20interest-rate%20volatility%20diverges%20from%20equity%20VIX&amp;steps=Z%20%3C%20-1.5%20%28VIX%20Rich%29%3A%3A-2.1%20pts%20avg%2010d%20VIX%20drop%3B%20equity%20panic%20without%20bond%2Ffunding%20stress%20mean-reverts%20rapidly!%7C-0.5%20to%20%2B0.5%20%28Aligned%29%3A%3A%2B0.1%20pts%20avg%2010d%20VIX%20change%3B%20cross-asset%20discount%20rates%20and%20equity%20VRP%20in%20equilibrium%7C%2B1.0%20to%20%2B1.8%20%28Diverging%29%3A%3A%2B1.8%20pts%20avg%2010d%20VIX%20rise%3B%20warning%20zone%E2%80%94tighten%20stops%20on%20short%20VX1%20contango%20carry!%7CZ%20%3E%20%2B1.8%20%28Acute%20Gap!%29%3A%3A%2B4.9%20pts%20avg%2010d%20VIX%20surge!%20Fixed-income%20funding%2Fduration%20stress%20spills%20into%20SPX%20puts&amp;metrics=SOLO%20EQUITY%20SPIKE%3A%3A-2.1v%20Reversion%3A%3ACalm%20Rates%20%3D%20Fast%20Fade%7CRATES%20LEAD%20SPIKE%3A%3A%2B4.9v%20VIX%20Jump%3A%3AWhen%20Z_Spread%20%3E%20%2B1.8%7CCARRY%20GATE%20USE%3A%3APause%20Short%20VX1%3A%3AProtects%20Contango%20Book%7CSUPERVISION%3A%3ACFTC%20%2F%20Fed%3A%3ATreasury%20%2B%20Futures</image:loc>
      <image:title>Subsequent 10-day Cboe VIX change across four quartiles of the standardized Rates-Vol minus VIX Z-score spread</image:title>
      <image:caption>Cross-Asset Spillover: CME SOFR Bachelier Swaption Vol &amp; MOVE Into VIX — Subsequent 10-day Cboe VIX change across four quartiles of the standardized Rates-Vol minus VIX Z-score spread (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/volatility-swaps-vs-variance-swaps-convexity-wedge</loc>
    <lastmod>2026-11-14T19:46:50.987Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/volatility-swaps-vs-variance-swaps-convexity-wedge-hero-2026.png</image:loc>
      <image:title>Volatility Swaps vs Variance Swaps: Exact Vol-of-Vol Convexity Pricing — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (VIX Term Structure, Variance Swaps, Vol-of-Vol VVIX &amp; Tail Hedging): Pricing the model-dependent vol-of-vol wedge between linear Volatility Swaps and Variance Swaps.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Why%20Dealers%20Charge%20Model%20Reserves%20on%20OTC%20Volatility%20Swaps&amp;subtitle=Static%201%2FK%C2%B2%20model-free%20hedging%20vs%20unspanned%20realized%20vol-of-vol%20correlation%20risk&amp;steps=Variance%20Swap%3A%3AE%5EQ%5B%E2%88%AB%CF%83%C2%B2dt%5D%20fixed%20uniquely%20by%20single-expiry%20vanilla%20smile%20via%20-2%2FT%20*%20E%5EQ%5Bln%28S_T%2FF_0%29%5D!%7CSmile%20Invariance%3A%3AHeston%2C%20Bergomi%2C%20and%20Dupire%20LV%20ALL%20give%20the%20EXACT%20same%20Variance%20Swap%20strike%20K_var!%7CVolatility%20Swap%3A%3ADupire%20Local%20Vol%20underprices%20Var%28%CF%83_real%29%20by%2040%25-60%25%20compared%20to%20Rough%20Bergomi%20%2F%20SLV!%7CDynamic%20VIX%20Hedge%3A%3ADealer%20hedges%20Vol%20Swap%20%3D%20Var%20Swap%20minus%20dynamic%20OTM%20VIX%20%2F%20forward-variance%20straddles&amp;metrics=DUPIRE%20LV%20BIAS%3A%3AOverprices%20K_vol%3A%3AUnderstates%20Vol-of-Vol!%7CSLV%20%2F%20BERGOMI%3A%3ATrue%20Var%28%CF%83_real%29%3A%3AMatches%20VVIX%20Dynamics%7CVAR%20BID-ASK%3A%3A~0.25%20-%200.40v%3A%3ATight%20Static%20Hedge%7CVOL%20SWAP%20BID-ASK%3A%3A~0.65%20-%201.10v%3A%3AEmbeds%20Model%20Reserve</image:loc>
      <image:title>Dealer hedging comparison showing static vanilla replication of Variance Swaps versus dynamic SLV vol-of-vol risk on Volatility Swaps</image:title>
      <image:caption>Volatility Swaps vs Variance Swaps: Exact Vol-of-Vol Convexity Pricing — Dealer hedging comparison showing static vanilla replication of Variance Swaps versus dynamic SLV vol-of-vol risk on Volatility Swaps (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=P%26L%20of%20%22Long%20Variance%20%2F%20Short%20Volatility%20Swap%22%20Package%20%28%24100k%20Vega%29&amp;subtitle=A%20pure%20quadratic%20straddle%20on%20realized%20volatility%20centered%20at%20K_var%20%3D%2017.60v%20%28Wedge%20%3D%200.83v%29&amp;steps=Dead%20Calm%20%28%CF%83%20%3D%209.0v%29%3A%3A%2B%24127%2C200%20PROFIT!%20Variance%20swap%20concavity%20loses%20less%20than%20short%20volatility%20swap%20gains!%7CAt%20Strike%20%28%CF%83%20%3D%2017.6v%29%3A%3A-%2483%2C000%20max%20bleed%3B%20equals%20exact%20upfront%200.83v%20convexity%20discount%20paid%20to%20enter%7CUpper%20Break%20%28%CF%83%20%3D%2023.0v%29%3A%3A%240.00%20break-even%20boundary%20%28%2B5.40v%20move%20recovers%20full%20upfront%20convexity%20cost%29%7CCrisis%20Spike%20%28%CF%83%20%3D%2040.0v%29%3A%3A%2B%241%2C342%2C400%20PROFIT!%20Quadratic%20variance%20surges%20far%20past%20linear%20short%20vol%20swap%20liability!&amp;metrics=MAX%20BLEED%20%40%20K_VAR%3A%3A-%2483%2C000%3A%3A-0.83v%20Upfront%20Wedge%7CDEAD-CALM%20GAIN%3A%3A%2B%24127%2C200%3A%3AAt%209.0v%20Realized%20SPX%7CCRISIS%2040v%20GAIN%3A%3A%2B%241%2C342%2C400%3A%3A16.2x%20Max%20Bleed%20Risk!%7CASSET%20FAVORITE%3A%3AFX%20%26%20Macro%20RV%3A%3APure%20Vol-of-Vol%20Play</image:loc>
      <image:title>Payoff profile of Long Variance minus Short Volatility Swap convexity package across realized volatility outcomes from 6v to 42v</image:title>
      <image:caption>Volatility Swaps vs Variance Swaps: Exact Vol-of-Vol Convexity Pricing — Payoff profile of Long Variance minus Short Volatility Swap convexity package across realized volatility outcomes from 6v to 42v (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/leveraged-vix-etp-uvix-svix-4pm-tas-rebalancing</loc>
    <lastmod>2026-11-14T19:53:05.824Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/leveraged-vix-etp-uvix-svix-4pm-tas-rebalancing-hero-2026.png</image:loc>
      <image:title>Leveraged &amp; Inverse VIX ETPs (UVIX, SVIX): 16:00 ET TAS Rebalancing Flows — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (VIX Term Structure, Variance Swaps, Vol-of-Vol VVIX &amp; Tail Hedging): Why +2x UVIX and -1x SVIX both buy spikes and sell crushes into the 16:00 ET settlement.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=15%3A45%E2%80%9316%3A00%20ET%20VIX%20ETP%20Rebalancing%20%26%20CFE%20TAS%20Liquidity%20Pipeline&amp;subtitle=How%20post-2018%20TWAP%20benchmarks%20distribute%20%2B%24590M%20pro-cyclical%20VX%20spikes%20across%2015%20minutes&amp;steps=Intraday%20VX%20Surge%3A%3AMacro%20selloff%20lifts%20VX1%2FVX2%20basket%20%2B22%25%3B%20desk%20tracker%20updates%20live%20L*%28L-1%29*AUM*r%7CCFE%20TAS%20Pre-Hedge%3A%3AAuthorized%20Participants%20%26%20swap%20desks%20lock%20TAS%20%2B0.05%20spreads%20ahead%20of%2015%3A45%20ET%7C15%2045-16%2000%20TWAP%3A%3AUVIX%20%26%20SVIX%20VSPT%20benchmark%20slices%20%2B27%2C474%20VX%20buy%20orders%20evenly%20across%2015%20minutes%7C16%2000-16%2015%20Post-Fix%3A%3AVX%20futures%20often%20mean-revert%20-0.35%20to%20-0.90%20pts%20once%20mechanical%20ETP%20TWAP%20completes!&amp;metrics=%2B2x%20UVIX%20FACTOR%3A%3A%2B2.0%20%C3%97%20AUM%20%C3%97%20r%3A%3AL%28L-1%29%20%3D%202%20%C3%97%201%20%3D%20%2B2%7C-1x%20SVIX%20FACTOR%3A%3A%2B2.0%20%C3%97%20AUM%20%C3%97%20r%3A%3AL%28L-1%29%20%3D%20-1%20%C3%97%20-2%20%3D%20%2B2!%7C-0.5x%20SVXY%20FACTOR%3A%3A%2B0.75%20%C3%97%20AUM%20%C3%97%20r%3A%3AHalved%20Post-2018%7CPOST-16%2000%20REVERT%3A%3A64%25%20Win%20Rate%3A%3AAfter%20%3E15%25%20VX%20Spikes</image:loc>
      <image:title>Execution mechanics of 15:45 to 16:00 ET VIX ETP rebalancing across CFE TAS and TWAP windows</image:title>
      <image:caption>Leveraged &amp; Inverse VIX ETPs (UVIX, SVIX): 16:00 ET TAS Rebalancing Flows — Execution mechanics of 15:45 to 16:00 ET VIX ETP rebalancing across CFE TAS and TWAP windows (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Net%20Mechanical%20ETP%20VX%20Futures%20Flow%20at%2015%3A45%E2%80%9316%3A00%20ET%20by%20Daily%20Return&amp;subtitle=Combined%20UVIX%20%2B%20UVXY%20%2B%20SVIX%20%2B%20SVXY%20futures%20trade%20%28in%20CFE%20VX%20contracts%29%20across%20daily%20moves&amp;steps=-15%25%20Vol%20Crush%20Day%3A%3A-18%2C700%20VX%20contracts%20SOLD%20into%2016%3A00%20ET!%20Accelerates%20post-FOMC%20afternoon%20VIX%20collapse%7C-5%25%20Calm%20Drift%20Day%3A%3A-6%2C200%20VX%20contracts%20sold%3B%20absorbed%20effortlessly%20inside%20CFE%20TAS%20%C2%B10.05%20spread%20book%7C%2B10%25%20Pullback%20Day%3A%3A%2B12%2C400%20VX%20contracts%20BOUGHT%20between%2015%3A45%20%26%2016%3A00%20ET%3B%20supports%20VX%20into%20cash%20close%7C%2B30%25%20Panic%20Day%3A%3A%2B37%2C300%20VX%20contracts%20BOUGHT!%20Pushes%20VX%20above%20fair%20value%20until%2016%3A00%3A01%20ET%20exhaustion&amp;metrics=-15%25%20CRUSH%20FLOW%3A%3A-18.7k%20VX%20Sold%3A%3AAmplifies%20Vol%20Crush%7C%2B30%25%20SPIKE%20FLOW%3A%3A%2B37.3k%20VX%20Bought%3A%3ALate-Day%20Squeeze%7CSEC%20%2F%20CFTC%20REFORM%3A%3A15-Min%20VSPT%3A%3APrevents%20Single-Print%20Cliff%7CFCM%20ACCESS%3A%3ACFE%20TAS%20Book%3A%3ATicker%20VXT1%20%2F%20VXT2</image:loc>
      <image:title>Mechanical 15:45 to 16:00 ET CFE VX contract flow across four daily VX basket return scenarios</image:title>
      <image:caption>Leveraged &amp; Inverse VIX ETPs (UVIX, SVIX): 16:00 ET TAS Rebalancing Flows — Mechanical 15:45 to 16:00 ET CFE VX contract flow across four daily VX basket return scenarios (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/cboe-skew-index-above-150-tail-kurtosis-pricing</loc>
    <lastmod>2026-11-14T19:47:15.735Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/cboe-skew-index-above-150-tail-kurtosis-pricing-hero-2026.png</image:loc>
      <image:title>Cboe SKEW Index Above 150: Risk-Neutral Third Moment vs Crash Reality — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (VIX Term Structure, Variance Swaps, Vol-of-Vol VVIX &amp; Tail Hedging): Separating genuine institutional tail accumulation from low-VIX σ3 denominator illusions.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Institutional%20Joint%20%28SKEW%20%C3%97%20VIX%29%20Regime%20Classification%20Matrix&amp;subtitle=Filtering%20out%20%CF%83%C2%B3%20low-VIX%20illusions%20before%20deploying%20SPX%20put-spread%20or%20collar%20trades&amp;steps=1.%20Observe%20SKEW%20%3E%20150%3A%3AStandardized%20third%20moment%20S_RN%20%3C%20-5.0%3B%20DO%20NOT%20assume%20imminent%20crash%20yet!%7C2.%20Audit%20%CF%83%C2%B3%20%26%20Call%20IV%3A%3ACompute%20unnormalized%20cubic%20moment%20W%20%3D%20S_RN%20*%20VIX%5E3%20and%2025d%20Put%20%2F%20ATM%20ratio%7C3.%20Benign%20Bull%20Case%3A%3AVIX%20%3C%2013.5%20%26%20VVIX%20%3C%2088%20-%3E%20ETF%20call%20supply%20crushed%20%CF%83%C2%B3%3B%20monetize%20via%20Put%20Fly%20or%20Call%20Risk-Rev%7C4.%20True%20Stress%20Case%3A%3AVIX%20%3E%2018.0%20Rising%20%26%20VVIX%20%3E%20115%20-%3E%20Institutional%20panic%20bid%3B%20hold%20convex%20downside%20hedges!&amp;metrics=GAUSSIAN%20BASELINE%3A%3ASKEW%20%3D%20100.0%3A%3AZero%20Skewness%20S_RN%20%3D%200%7CMEDIAN%20SPX%20SKEW%3A%3A128%20-%20138%3A%3AStructural%20Put%20Demand%7CCRASH%20PARADOX%3A%3ASKEW%20Drops%20~115!%3A%3AATM%20VIX%3D60%20Flattens%20Ratio%7CSAFE%20MONETIZER%3A%3ABroken-Wing%20Fly%3A%3AZero%20Uncapped%20Vomma</image:loc>
      <image:title>Two-variable institutional regime filter combining Cboe SKEW and Spot VIX to separate benign denominator effects from real crash hedging</image:title>
      <image:caption>Cboe SKEW Index Above 150: Risk-Neutral Third Moment vs Crash Reality — Two-variable institutional regime filter combining Cboe SKEW and Spot VIX to separate benign denominator effects from real crash hedging (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Forward%2030-Day%20S%26P%20500%20Behavior%20Across%20Joint%20%28SKEW%20%C3%97%20VIX%29%20Quadrants&amp;subtitle=Historical%20SPX%2030-day%20return%20and%20drawdown%20frequency%20across%20four%20joint%20surface%20states&amp;steps=High%20SKEW%20%28%3E150%29%20%2B%20Low%20VIX%20%28%3C14%29%3A%3A%2B1.42%25%20avg%2030d%20SPX%20return!%20Benign%20bull%20grind%20where%20covered-call%20ETFs%20depress%20ATM%20vol%7CLow%20SKEW%20%28%3C125%29%20%2B%20Low%20VIX%20%28%3C14%29%3A%3A%2B0.95%25%20avg%2030d%20SPX%20return%3B%20unusually%20cheap%205-delta%20tail%20puts%E2%80%94ideal%20window%20to%20buy%20hedges!%7CHigh%20SKEW%20%28%3E150%29%20%2B%20Rising%20VIX%20%28%3E18%29%3A%3A-1.85%25%20avg%2030d%20SPX%20return%20%26%203.4x%20higher%20%3E5%25%20drawdown%20odds!%20Genuine%20institutional%20fear%7CLow%20SKEW%20%28%3C120%29%20%2B%20Crisis%20VIX%20%28%3E35%29%3A%3A%2B3.60%25%20avg%2030d%20rebound!%20Flat%20panic%20smile%20marks%20acute%20capitulation%20%26%20Vanna%20snapback&amp;metrics=HIGH%20SKEW%2FLOW%20VIX%3A%3A%2B1.42%25%2030d%20Avg%3A%3ADebunks%20Crash%20Myth!%7CCHEAP%20HEDGE%20WINDOW%3A%3ASKEW%20%3C%20125%3A%3ABuy%20SPX%20Tail%20Spreads%7CTRUE%20DANGER%20ZONE%3A%3ASKEW%3E150%20%26%20VIX%3E18%3A%3A3.4x%20Drawdown%20Hazard%7CCAPITULATION%3A%3ASKEW%3C120%20%26%20VIX%3E35%3A%3APeak%20Panic%20Flat%20Smile</image:loc>
      <image:title>Subsequent 30-day S&amp;P 500 return and realized volatility across four joint Cboe SKEW and VIX quadrants</image:title>
      <image:caption>Cboe SKEW Index Above 150: Risk-Neutral Third Moment vs Crash Reality — Subsequent 30-day S&amp;P 500 return and realized volatility across four joint Cboe SKEW and VIX quadrants (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/forward-starting-variance-swaps-fva-calendar-carry</loc>
    <lastmod>2026-11-14T19:49:14.423Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/forward-starting-variance-swaps-fva-calendar-carry-hero-2026.png</image:loc>
      <image:title>Forward-Starting Variance Swaps vs FVAs: Election &amp; Macro Event Carry — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (VIX Term Structure, Variance Swaps, Vol-of-Vol VVIX &amp; Tail Hedging): Zero spot theta bleed before T1 and strike-drift immunity across macro event humps.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Forward-Starting%20Variance%20Swap%20vs%20Forward%20Volatility%20Agreement%20%28FVA%29&amp;subtitle=Choosing%20between%20full-skew%20realized%20%5BT%E2%82%81%2C%20T%E2%82%82%5D%20variance%20and%20pure%20ATM%20implied%20fixing%20at%20T%E2%82%81&amp;steps=Inception%20%28t%20%3D%200%29%3A%3ALock%20K_fwd_var%28T%E2%82%81%2CT%E2%82%82%29%20or%20K_FVA%28T%E2%82%81%2CT%E2%82%82%29%20via%20ISDA%20with%20zero%20upfront%20cash%20exchange%7CPre-Start%20%5B0%2C%20T%E2%82%81%29%3A%3AZero%20realized%20theta%20bleed!%20Spot%20can%20rally%20%2B15%25%20or%20drop%20-15%25%20with%20ZERO%20strike%20drift!%7CFixing%20Date%20T%E2%82%81%3A%3AFVA%20cash-settles%20right%20at%20T%E2%82%81%20against%20new%20ATM%20IV!%20Fwd%20Var%20begins%20counting%20daily%20ln%C2%B2%20returns%7CMaturity%20Date%20T%E2%82%82%3A%3AForward%20Variance%20Swap%20settles%20N_var%20*%20%28RV_%7BT%E2%82%81%2CT%E2%82%82%7D%20-%20K_fwd%C2%B2%29%20in%20cash&amp;metrics=STRIKE%20DRIFT%20RISK%3A%3A0.00%25%20%28Immune!%29%3A%3AUnlike%20Listed%20Calendars%7CELECTION%20KINK%3A%3A%2B5%20to%20%2B9%20Vol%20Pts%3A%3AOct-Nov%20Forward%20Hump%7CFVA%20SETTLEMENT%3A%3AAt%20Start%20Date%20T%E2%82%81!%3A%3AExits%20Before%20Realized%20Risk%7CLISTED%20PROXY%3A%3AVX_Nov%20-%200.5%28VX_Oct%2BVX_Dec%29%3A%3ACFE%20VIX%20Butterfly</image:loc>
      <image:title>Comparison of Forward-Starting Variance Swap static 1/K2 calendar replication versus FVA forward-start straddle fixing at T1</image:title>
      <image:caption>Forward-Starting Variance Swaps vs FVAs: Election &amp; Macro Event Carry — Comparison of Forward-Starting Variance Swap static 1/K2 calendar replication versus FVA forward-start straddle fixing at T1 (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Empirical%20Overpricing%20of%20Pre-Election%20Forward%20Volatility%20Humps&amp;subtitle=Comparison%20of%20T-90d%20peak%20forward%20variance%20pricing%20versus%20eventual%2030-day%20realized%20volatility&amp;steps=T-90d%20Forward%20K_fwd%3A%3A24.9v%20avg%20forward%20variance%20strike%3B%20mandatory%20institutional%20hedging%20inflates%20Nov%20kink%20early%7CT-5d%20FVA%20Fixing%20IV%3A%3A22.4v%20avg%20implied%20vol%20just%20before%20election%3B%20early%20hedgers%20unwind%20excess%20vega%7CActual%2030d%20Realized%3A%3A17.8v%20avg%20post-election%20realized%20vol!%20Quick%20outcome%20resolution%20triggers%20massive%20Vanna%20crush!%7CVX%20Fly%20Short%20Edge%3A%3A%2B2.65%20VX%20pts%20avg%20capture%20selling%202x%20Nov%20VX%20against%201x%20Oct%20%2B%201x%20Dec%20VX%20futures!&amp;metrics=PEAK%20FWD%20IMPLIED%3A%3A24.9%20Vol%20Avg%3A%3AOver-Hedged%20Kink%7CACTUAL%20REALIZED%3A%3A17.8%20Vol%20Avg%3A%3A%2B7.1v%20Election%20VRP!%7CCFE%20BUTTERFLY%3A%3A%2B2.65%20Pts%20Avg%3A%3ADefined-Margin%20Listed%20RV%7CCLEARING%3A%3AOCC%20%2F%20CFE%3A%3A85%25%2B%20Butterfly%20Offset</image:loc>
      <image:title>Historical implied vs realized volatility on U.S. election and FOMC forward-variance butterflies</image:title>
      <image:caption>Forward-Starting Variance Swaps vs FVAs: Election &amp; Macro Event Carry — Historical implied vs realized volatility on U.S. election and FOMC forward-variance butterflies (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/gamma-swaps-spot-weighted-variance-skew-hedging</loc>
    <lastmod>2026-11-15T06:18:21.539Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/gamma-swaps-spot-weighted-variance-skew-hedging-hero-2026.png</image:loc>
      <image:title>Spot-Weighted Gamma Swaps vs Variance Swaps: Taming Crash Truncation — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (VIX Term Structure, Variance Swaps, Vol-of-Vol VVIX &amp; Tail Hedging): Weighting variance by S_t / S0: 1/K option replication that self-damps near-zero crashes.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
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      <image:title>Comparison of 1/K2 Variance Swap versus 1/K Gamma Swap replication weights and resulting Skewness Swap isolation</image:title>
      <image:caption>Spot-Weighted Gamma Swaps vs Variance Swaps: Taming Crash Truncation — Comparison of 1/K2 Variance Swap versus 1/K Gamma Swap replication weights and resulting Skewness Swap isolation (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Asymmetric%20Variance%20Accrual%3A%20Variance%20Swap%20vs%20Gamma%20Swap&amp;subtitle=Effective%20realized%20variance%20points%20accrued%20under%2040%25%20daily%20volatility%20across%20four%20spot%20trajectories&amp;steps=-75%25%20Distress%20Crash%3A%3AVar%20Swap%20accrues%20100%25%20%281%2C600%20pts%29%20%2B%20jump%20tail%3B%20Gamma%20Swap%20damps%20accrual%20by%20-62%25%20%28608%20pts%29!%7C-20%25%20Index%20Bear%3A%3AVar%20Swap%20accrues%201%2C600%20pts%20vs%20Gamma%20Swap%201%2C420%20pts%3B%20difference%20pays%20Skew%20Swap%20buyer%7C0%25%20Rangebound%20Pin%3A%3AS_i%20%2F%20S%E2%82%80%20%E2%89%88%201.00%20%3D%3E%20Variance%20Swap%20and%20Gamma%20Swap%20accrue%20identical%201%2C600%20variance%20points!%7C%2B45%25%20Momentum%20Rally%3A%3AGamma%20Swap%20accrues%20%2B24%25%20MORE%20variance%20%281%2C984%20pts%29%20as%20S_i%20%2F%20S%E2%82%80%20%3E%201.0%20boosts%20dollar%20gamma!&amp;metrics=DISTRESS%20DAMPING%3A%3A-62%25%20Accrual%3A%3AProtects%20Single-Name%20Short%7CFLAT%20PATH%20PARITY%3A%3A1.00x%20Match%3A%3AWhen%20S_t%20Stays%20Near%20S%E2%82%80%7CUPSIDE%20BOOST%3A%3A%2B24%25%20Accrual%3A%3AIdeal%20Long%20Squeeze%20Leg%7CISDA%20TEMPLATE%3A%3AShare%20Gamma%20Swap%3A%3A2011%20Equity%20Definitions</image:loc>
      <image:title>Accrued variance points from a -80% distress crash versus a +50% upside rally in Variance versus Gamma Swaps</image:title>
      <image:caption>Spot-Weighted Gamma Swaps vs Variance Swaps: Taming Crash Truncation — Accrued variance points from a -80% distress crash versus a +50% upside rally in Variance versus Gamma Swaps (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/cftc-cot-leveraged-funds-dealer-vix-futures-extremes</loc>
    <lastmod>2026-11-14T19:46:32.602Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/cftc-cot-leveraged-funds-dealer-vix-futures-extremes-hero-2026.png</image:loc>
      <image:title>CFTC Traders in Financial Futures (TFF) VIX Positioning &amp; Squeeze Signals — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (VIX Term Structure, Variance Swaps, Vol-of-Vol VVIX &amp; Tail Hedging): Separating hedged basis arbitrage from crowded naked short-VIX carry in weekly CFTC filings.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Institutional%20CFTC%20TFF%20VIX%20Positioning%20Adjustment%20Pipeline&amp;subtitle=Stripping%20out%20hedged%20RV%20arbitrage%20and%20ETP%20swap%20books%20to%20isolate%20true%20short-vol%20crowding&amp;steps=1.%20Ingest%20TFF%20CSV%3A%3AParse%20Tuesday%20Dealer%2C%20Asset%20Manager%2C%20and%20Leveraged%20Fund%20Long%2FShort%2FSpreading%20VX%20lots%7C2.%20Normalize%20by%20OI%3A%3ADivide%20net%20contracts%20by%20total%20CFE%20VX%20OI%20%28avoids%20secular%20market-growth%20distortion!%29%7C3.%20Add%20ETP%20VX%20Ledger%3A%3AOverlay%20live%20UVIX%2FVXX%20long%20VX%20vs%20SVIX%2FSVXY%20short%20VX%20holdings%20updated%20daily%7C4.%20OCC%20Call%20Offset%3A%3ADiscount%20Leveraged%20Fund%20shorts%20when%20OCC%20Customer%20VIX%2025-45%20Call%20BTO%20surges!&amp;metrics=ASSET%20MGR%20BIAS%3A%3AStructurally%20Long%3A%3A%2B80k%20to%20%2B145k%20Tail%20Hedge%7CLEV%20FUND%20BIAS%3A%3AStructurally%20Short%3A%3AHarvests%20Contango%20VRP%7CSQUEEZE%20DANGER%3A%3A%3C%20-32%25%20OI%20%2B%20Flat%3A%3ACrowded%20%2B%20Thin%20Carry%7CBOTTOM%20SIGNAL%3A%3ALev%20Funds%20%3E%20%2B2%25%20OI%3A%3APost-Crash%20Capitulation</image:loc>
      <image:title>Institutional pipeline cleansing raw CFTC TFF VIX futures data with ETP AUM and OCC VIX call open interest</image:title>
      <image:caption>CFTC Traders in Financial Futures (TFF) VIX Positioning &amp; Squeeze Signals — Institutional pipeline cleansing raw CFTC TFF VIX futures data with ETP AUM and OCC VIX call open interest (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=30-Day%20Forward%20VX1%20Behavior%20by%20Adjusted%20Short-Vol%20Crowding&amp;subtitle=Frequency%20of%20%3E%2B35%25%20VX1%20spikes%20and%20median%20VX1%20return%20across%20four%20positioning%20states&amp;steps=Extreme%20Short%20%28%3C-32%25%20OI%29%3A%3A24%25%20probability%20of%20a%20%3E%2B35%25%20VX1%20spike%20over%20next%2030d!%20Asymmetric%20short-covering%20powder%20keg%7CNormal%20Carry%20%28-25%25%20to%20-12%25%29%3A%3A-4.8%25%20median%2030d%20VX1%20return%3B%20healthy%20contango%20carry%20harvesting%20environment%7CDe-Grossed%20%28-10%25%20to%200%25%29%3A%3A-6.2%25%20median%2030d%20VX1%20return%3B%20funds%20already%20covered%20shorts%20during%20initial%20scare%7CRare%20Net%20Long%20%28%3E%200%25%20OI!%29%3A%3A-14.6%25%20median%2030d%20VX1%20collapse!%20Hedge%20funds%20chasing%20long%20VIX%20after%20crash%20marks%20peak%20vol!&amp;metrics=CROWDED%20SPIKE%20%25%3A%3A24%25%20Odds%20%28%3E%2B35%25%29%3A%3A3.2x%20Baseline%20Hazard%7CHEALTHY%20CARRY%3A%3A-4.8%25%20VX1%20%2F%2030d%3A%3ANormal%20Roll%20Capture%7CNET-LONG%20COLLAPSE%3A%3A-14.6%25%20VX1%20%2F%2030d%3A%3AClassic%20Capitulation%20Top%7CREGULATORY%20SOURCE%3A%3ACFTC%20Form%2040%3A%3ALarge%20Trader%20Reporting</image:loc>
      <image:title>Forward 30-day VX1 futures return and spike probability across four ETP-adjusted Leveraged Fund positioning quartiles</image:title>
      <image:caption>CFTC Traders in Financial Futures (TFF) VIX Positioning &amp; Squeeze Signals — Forward 30-day VX1 futures return and spike probability across four ETP-adjusted Leveraged Fund positioning quartiles (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/cfe-occ-vix-futures-options-cross-margining-capital</loc>
    <lastmod>2026-11-14T19:47:14.307Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/cfe-occ-vix-futures-options-cross-margining-capital-hero-2026.png</image:loc>
      <image:title>CFE &amp; OCC VIX Futures–Options Cross-Margining &amp; Capital Optimization — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (VIX Term Structure, Variance Swaps, Vol-of-Vol VVIX &amp; Tail Hedging): Bridging SEC securities options and CFTC VX futures inside unified OCC STANS cross-margining.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Eliminating%20SEC%20%2F%20CFTC%20Margin%20Silos%20on%20VIX%20%26%20SPX%20Volatility%20Books&amp;subtitle=Two%20institutional%20pathways%20to%2075%25%2B%20collateral%20reduction%3A%20OCC%20Cross-Margining%20vs%20VIX%20Synthetic%20Combos&amp;steps=Siloed%20Problem%3A%3A4d%20CFTC%20Futures%20account%20holds%20%2B45%20VX%3B%2015c3-3%20SEC%20account%20holds%20-1%2C000%20VIX%20Calls%20-%3E%20%242.32M%7CPath%20A%20%20OCC%20XM%3A%3ADual-registered%20BD%2FFCM%20links%20CFE%20VX%20%2B%20OCC%20VIX%2FSPX%20in%20unified%20OCC%20STANS%20Cross-Margin%20pool%7CPath%20B%20%20Combo%20Proxy%3A%3AReplace%20%2B45%20CFE%20VX%20with%20%2B450%20VIX%2018C%20%2F%20-450%20VIX%2018P%20combos%20directly%20inside%20FINRA%204210%20PM!%7CCapital%20Unlocked%3A%3AMargin%20drops%2079%25%20to%20%24485k%3B%20freed%20%241.83M%20earns%20~4.35%25%20SOFR%20T-Bill%20carry%20%28%2B800%20bps%20ROE!%29&amp;metrics=SILOED%20MARGIN%3A%3A%242.32M%20Locked%3A%3ADouble-Counted%20Delta%7CUNIFIED%20OCC%20XM%3A%3A%24485k%20Locked%3A%3A-79.1%25%20Margin%20Saved!%7CT-BILL%20CARRY%20GAIN%3A%3A%2B%2479.7k%20%2F%20Yr%3A%3AAt%204.35%25%20SOFR%20on%20Freed%20%24%7CMULTIPLIER%20RATIO%3A%3A1%20VX%20%3D%2010%20Opts%3A%3A%241%2C000%20vs%20%24100%20Mult</image:loc>
      <image:title>Comparison of segregated SEC and CFTC margin silos versus unified OCC Cross-Margining and Synthetic Combo routing</image:title>
      <image:caption>CFE &amp; OCC VIX Futures–Options Cross-Margining &amp; Capital Optimization — Comparison of segregated SEC and CFTC margin silos versus unified OCC Cross-Margining and Synthetic Combo routing (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Collateral%20Locked%20%28%24k%29%20on%20a%20%24100k-Vega%20Hedged%20VIX%20Skew%20Book&amp;subtitle=Comparing%20Reg%20T%20%2B%20Segregated%20Futures%20against%204210%20PM%20Combos%20and%20OCC%20STANS%20Cross-Margining&amp;steps=Reg%20T%20%2B%20Separate%20FCM%3A%3A%242%2C840k%20collateral%20locked%3B%20punitive%20uncovered%20option%20formulas%20%2B%20unlinked%20SPAN%20futures%7C4210%20PM%20%2B%20Separate%20FCM%3A%3A%241%2C620k%20collateral%20locked%3B%20PM%20helps%20options%20alone%2C%20but%20still%20blind%20to%20CFE%20VX%20futures%20hedge!%7C4210%20PM%20%2B%20VIX%20Combos%3A%3A%24540k%20collateral%20locked%20%28-81%25%20vs%20Reg%20T!%29%3B%20synthetic%20%2BC%2F-P%20keeps%20100%25%20of%20delta%20inside%20TIMS!%7COCC%20Cross-Margin%20STANS%3A%3A%24485k%20collateral%20locked%20%28-83%25%29%3B%20full%20joint%20Monte%20Carlo%20simulation%20across%20CFE%20VX%20%26%20SPX%2FVIX&amp;metrics=REG%20T%20%2B%20SPLIT%20FCM%3A%3A%242%2C840k%3A%3A1.00x%20Baseline%20Drag%7CPM%20%2B%20SPLIT%20FCM%3A%3A%241%2C620k%3A%3AStill%20Misses%20VX%20Offset!%7CPM%20SYNTHETIC%20VX%3A%3A%24540k%3A%3AAccessible%20to%20All%20PM%20Funds%7COCC%20STANS%20XM%3A%3A%24485k%3A%3AInstitutional%20Gold%20Std</image:loc>
      <image:title>Initial margin requirement as percentage of notional across four clearing setups for a delta-hedged VIX volatility book</image:title>
      <image:caption>CFE &amp; OCC VIX Futures–Options Cross-Margining &amp; Capital Optimization — Initial margin requirement as percentage of notional across four clearing setups for a delta-hedged VIX volatility book (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/fx-atm-delta-neutral-straddle-premium-adjusted-delta</loc>
    <lastmod>2026-11-14T19:48:43.072Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/fx-atm-delta-neutral-straddle-premium-adjusted-delta-hero-2026.png</image:loc>
      <image:title>FX ATM Delta-Neutral Straddles (DNS) &amp; Premium-Adjusted Delta Conventions — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (FX 25-Delta Risk Reversals, 10-Delta Butterflies &amp; Event Vol Weights): Exact Garman-Kohlhagen Unadjusted vs Premium-Adjusted delta equations across G10 &amp; EM pairs.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Interbank%20FX%20Pair%20%26%20Tenor%20Convention%20Routing%20Engine&amp;subtitle=Selecting%20exact%20premium-adjustment%20and%20spot-vs-forward%20delta%20rules%20per%20ISDA%20%2F%20market%20standard&amp;steps=1.%20Premium%20Currency%3A%3ACheck%20if%20premium%20settles%20in%20Quote%2FDOM%20%28EURUSD%20-%3E%20Unadj%29%20or%20Base%2FFOR%20%28USDJPY%20-%3E%20Prem-Adj%29%7C2.%20Tenor%20Horizon%3A%3AG10%20%E2%89%A4%201Y%20uses%20Spot%20Delta%20%28e%5E%28-r_f%20T%29%29%3B%20G10%20%3E%201Y%20%26%20EM%20pairs%20use%20Forward%20Delta!%7C3.%20Solve%20ATM%20K_DNS%3A%3ASet%20d%E2%82%81%20%3D%200%20%28K%20%3D%20F*e%5E%28%2B%C2%BD%CF%83%C2%B2T%29%29%20if%20Unadj%2C%20or%20d%E2%82%82%20%3D%200%20%28K%20%3D%20F*e%5E%28-%C2%BD%CF%83%C2%B2T%29%29%20if%20Prem-Adj%7C4.%20Monotonicity%20Gate%3A%3AOn%20Prem-Adj%20calls%2C%20restrict%20root-solver%20to%20right%20of%20peak%20strike%20K_peak%20to%20avoid%20dual-25d%20roots!&amp;metrics=EUR%2FUSD%201M-1Y%3A%3ASpot%20Unadj%20DNS%3A%3Ad%E2%82%81%20%3D%200%20%3D%3E%20K%20%3E%20F%7CUSD%2FJPY%201M-1Y%3A%3ASpot%20Prem-Adj%3A%3Ad%E2%82%82%20%3D%200%20%3D%3E%20K%20%3C%20F%7CG10%20%3E%201Y%20TENORS%3A%3AForward%20Delta%3A%3ADrops%20e%5E%28-r_f%20T%29%20Factor%7C1Y%20USDJPY%20ERROR%3A%3A161%20Pips!%3A%3AIf%20Prem-Adj%20Omitted</image:loc>
      <image:title>Decision tree routing currency pairs and tenors to the exact interbank FX ATM and delta convention</image:title>
      <image:caption>FX ATM Delta-Neutral Straddles (DNS) &amp; Premium-Adjusted Delta Conventions — Decision tree routing currency pairs and tenors to the exact interbank FX ATM and delta convention (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=25-Delta%20Call%20Strike%20Shift%3A%20Unadjusted%20vs%20Premium-Adjusted%20%28Pips%29&amp;subtitle=How%20omitting%20premium%20adjustment%20misplaces%20the%201-year%2025-delta%20call%20strike%20as%20%CF%83%20rises&amp;steps=Low%20Vol%20%28%CF%83%20%3D%207.5%25%20CHF%29%3A%3A42%20pips%20strike%20shift%3B%20modest%20%28K%2FF%29*N%28d%E2%82%82%29%20vs%20N%28d%E2%82%81%29%20compression%20on%20low-vol%20pairs%7CNormal%20G10%20%28%CF%83%20%3D%2010.5%25%20JPY%29%3A%3A138%20pips%20strike%20shift%20on%20USD%2FJPY%201Y!%20Misprices%2025d%20Risk%20Reversal%20by%200.28%20vol%20pts%7CHigh%20G10%2FEM%20%28%CF%83%20%3D%2016%25%20MXN%29%3A%3A385%20pips%20equivalent%20shift%3B%20premium%20V%2FS%20consumes%206.4%25%20of%20base%20delta%20notional%7CDistressed%20EM%20%28%CF%83%20%3D%2028%25%20TRY%29%3A%3ADual-root%20hazard!%20Max%20Prem-Adj%20call%20delta%20drops%20to%200.44%E2%80%94naive%20solver%20crashes%20without%20bounds!&amp;metrics=USDJPY%201Y%20SHIFT%3A%3A138%20Pips%3A%3A0.28v%20Skew%20Mispricing%7CDUAL-ROOT%20ZONE%3A%3A%CF%83%C2%B7%E2%88%9AT%20%3E%200.26%3A%3ATwo%20Strikes%20%3D%2025d%20Call!%7CECN%20EXECUTION%3A%3AISDA%20Standard%3A%3ADarwinex%20%2F%20ATC%20%2F%20OTC%7CNEXT%20STEP%3A%3ASolve%20MS%20Strikes%3A%3ASee%20Broker%20Fly%20Note</image:loc>
      <image:title>Strike divergence in pips between Unadjusted and Premium-Adjusted 25-delta calls across four volatility levels</image:title>
      <image:caption>FX ATM Delta-Neutral Straddles (DNS) &amp; Premium-Adjusted Delta Conventions — Strike divergence in pips between Unadjusted and Premium-Adjusted 25-delta calls across four volatility levels (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/fx-25-delta-risk-reversals-usdjpy-eurusd-carry-unwinds</loc>
    <lastmod>2026-11-14T21:49:18.709Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/fx-25-delta-risk-reversals-usdjpy-eurusd-carry-unwinds-hero-2026.png</image:loc>
      <image:title>FX 25-Delta Risk Reversals: USD/JPY &amp; EUR/USD Carry Crash Skew — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (FX 25-Delta Risk Reversals, 10-Delta Butterflies &amp; Event Vol Weights): Pricing &quot;up-the-stairs, down-the-elevator&quot; FX carry unwinds and SABR correlation ρ.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
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      <image:title>Transmission loop from interest-rate carry crowding to 25-delta Risk Reversal skew steepening and Vanna unwind acceleration</image:title>
      <image:caption>FX 25-Delta Risk Reversals: USD/JPY &amp; EUR/USD Carry Crash Skew — Transmission loop from interest-rate carry crowding to 25-delta Risk Reversal skew steepening and Vanna unwind acceleration (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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      <image:title>Normalized 25-delta Risk Reversal ratio RR_25 divided by ATM vol across four FX carry pairs</image:title>
      <image:caption>FX 25-Delta Risk Reversals: USD/JPY &amp; EUR/USD Carry Crash Skew — Normalized 25-delta Risk Reversal ratio RR_25 divided by ATM vol across four FX carry pairs (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/fx-market-strangle-vs-smiley-broker-butterfly-strikes</loc>
    <lastmod>2026-11-14T19:52:37.343Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/fx-market-strangle-vs-smiley-broker-butterfly-strikes-hero-2026.png</image:loc>
      <image:title>FX Market Strangle (1-Vol) vs Smiley Broker Butterfly (2-Vol) Iteration — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (FX 25-Delta Risk Reversals, 10-Delta Butterflies &amp; Event Vol Weights): Exact fixed-point strike matching between 1-Vol Market Strangles and 2-Vol Smiley Flies.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
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      <image:title>Exact five-equation coupled nonlinear solver converting ATM DNS RR and 1-Vol Market Strangle quotes into arbitrage-free smile parameters</image:title>
      <image:caption>FX Market Strangle (1-Vol) vs Smiley Broker Butterfly (2-Vol) Iteration — Exact five-equation coupled nonlinear solver converting ATM DNS RR and 1-Vol Market Strangle quotes into arbitrage-free smile parameters (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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      <image:title>Butterfly calibration error in basis points of volatility across four Risk Reversal skew levels at 25-delta and 10-delta</image:title>
      <image:caption>FX Market Strangle (1-Vol) vs Smiley Broker Butterfly (2-Vol) Iteration — Butterfly calibration error in basis points of volatility across four Risk Reversal skew levels at 25-delta and 10-delta (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/malz-quadratic-vs-vanna-volga-fx-smile-interpolation</loc>
    <lastmod>2026-11-14T19:49:08.830Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/malz-quadratic-vs-vanna-volga-fx-smile-interpolation-hero-2026.png</image:loc>
      <image:title>Malz Quadratic vs Vanna-Volga FX Volatility Smile Interpolation — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (FX 25-Delta Risk Reversals, 10-Delta Butterflies &amp; Event Vol Weights): Hedging-consistent 3-pillar Lagrange weights vs Malz (1997) delta-space parabolas.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
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      <image:title>Economic hedge replication pipeline of Vanna-Volga pricing from target strike Greeks to 3-pillar market over-cost</image:title>
      <image:caption>Malz Quadratic vs Vanna-Volga FX Volatility Smile Interpolation — Economic hedge replication pipeline of Vanna-Volga pricing from target strike Greeks to 3-pillar market over-cost (VolSurface Desk)</image:caption>
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    <image:image>
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      <image:title>Implied volatility fit residual against market 10-delta broker quotes across Malz Vanna-Volga SABR and 5-point SVI</image:title>
      <image:caption>Malz Quadratic vs Vanna-Volga FX Volatility Smile Interpolation — Implied volatility fit residual against market 10-delta broker quotes across Malz Vanna-Volga SABR and 5-point SVI (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/fx-10-delta-wing-butterflies-em-jump-kurtosis-pricing</loc>
    <lastmod>2026-11-14T19:46:30.801Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/fx-10-delta-wing-butterflies-em-jump-kurtosis-pricing-hero-2026.png</image:loc>
      <image:title>FX 10-Delta Wing Butterflies vs 25-Delta Flies: Jump Kurtosis Pricing — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (FX 25-Delta Risk Reversals, 10-Delta Butterflies &amp; Event Vol Weights): Using the 3.2x Gaussian z2 benchmark to separate diffusive vol-of-vol from FX jump risk.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
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      <image:title>Diagnostic workflow using BF_10 divided by BF_25 to choose between SABR/Heston calibration and Bates jump-diffusion SLV</image:title>
      <image:caption>FX 10-Delta Wing Butterflies vs 25-Delta Flies: Jump Kurtosis Pricing — Diagnostic workflow using BF_10 divided by BF_25 to choose between SABR/Heston calibration and Bates jump-diffusion SLV (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Term-Structure%20Decay%20of%20the%20Jump%20Ratio%20%28BF_10%20%2F%20BF_25%29%20Across%20Tenors&amp;subtitle=Central%20Limit%20Theorem%20aggregation%20smooths%20Poisson%20jumps%20into%20diffusive%203.25x%20wings%20at%20%3E1Y&amp;steps=1-Week%20Expiry%3A%3A4.65x%20avg%20stressed%20ratio%3B%20discrete%20overnight%20central-bank%20%26%20intervention%20jumps%20dominate%7C1-Month%20Expiry%3A%3A3.85x%20avg%20ratio%3B%20jump%20kurtosis%20begins%20blending%20with%20continuous%20macro%20vol-of-vol%7C6-Month%20Expiry%3A%3A3.42x%20avg%20ratio%3B%20Central%20Limit%20Theorem%20aggregates%20multiple%20jumps%20toward%20Heston%20smile%7C2-Year%20Expiry%3A%3A3.18x%20avg%20ratio%3B%20long-dated%20FX%20wings%20governed%20by%20interest-rate%20%26%20PRDC%20stochastic%20vol&amp;metrics=1W%20JUMP%20RATIO%3A%3A4.65x%20Avg%3A%3AHigh%20Kurtosis%20Excess%7C2Y%20CLT%20RATIO%3A%3A3.18x%20Avg%3A%3ADiffusive%20Convergence%7CTRADE%20VEHICLE%3A%3AVomma-Neutral%3A%3A10d%20vs%2025d%20Fly%20Switch%7CCLEARING%20%2F%20ECN%3A%3AOTC%20%2B%20CME%3A%3ARegulated%20by%20CFTC%20%2F%20FCA</image:loc>
      <image:title>Tenor decay of BF_10 divided by BF_25 wing ratio from 1-week out to 2-year FX maturities</image:title>
      <image:caption>FX 10-Delta Wing Butterflies vs 25-Delta Flies: Jump Kurtosis Pricing — Tenor decay of BF_10 divided by BF_25 wing ratio from 1-week out to 2-year FX maturities (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/overnight-fx-central-bank-event-variance-weights-boj</loc>
    <lastmod>2026-11-15T06:20:51.845Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/overnight-fx-central-bank-event-variance-weights-boj-hero-2026.png</image:loc>
      <image:title>Overnight FX Central-Bank Event Variance Weights (FOMC, ECB, BoJ) — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (FX 25-Delta Risk Reversals, 10-Delta Butterflies &amp; Event Vol Weights): ACT/365 overnight variance decomposition and √(2/π) pip break-evens for FOMC, ECB, and BoJ.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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      <image:title>Construction of an arbitrage-free FX multi-event total variance curve across CPI FOMC ECB and BoJ timestamps</image:title>
      <image:caption>Overnight FX Central-Bank Event Variance Weights (FOMC, ECB, BoJ) — Construction of an arbitrage-free FX multi-event total variance curve across CPI FOMC ECB and BoJ timestamps (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
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      <image:title>Overnight ATM implied volatility on ACT/365 basis across normal weekdays weekends CPI FOMC and BoJ meetings</image:title>
      <image:caption>Overnight FX Central-Bank Event Variance Weights (FOMC, ECB, BoJ) — Overnight ATM implied volatility on ACT/365 basis across normal weekdays weekends CPI FOMC and BoJ meetings (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/sticky-strike-vs-sticky-delta-fx-shadow-delta-hedging</loc>
    <lastmod>2026-11-14T19:51:35.767Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/sticky-strike-vs-sticky-delta-fx-shadow-delta-hedging-hero-2026.png</image:loc>
      <image:title>Sticky-Strike vs Sticky-Delta FX Smiles: Shadow-Delta Hedging Math — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (FX 25-Delta Risk Reversals, 10-Delta Butterflies &amp; Event Vol Weights): Derman smile regimes and Bartlett minimum-variance SABR delta corrections.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
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      <image:title>Comparison of Sticky-Strike Sticky-Moneyness and Bartlett-SABR minimum-variance delta hedging pipelines</image:title>
      <image:caption>Sticky-Strike vs Sticky-Delta FX Smiles: Shadow-Delta Hedging Math — Comparison of Sticky-Strike Sticky-Moneyness and Bartlett-SABR minimum-variance delta hedging pipelines (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
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      <image:title>Daily hedged P&amp;L standard deviation reduction comparing Naive Black-Scholes Delta Sticky-Moneyness Delta Dupire LV Delta and Bartlett SABR Delta</image:title>
      <image:caption>Sticky-Strike vs Sticky-Delta FX Smiles: Shadow-Delta Hedging Math — Daily hedged P&amp;L standard deviation reduction comparing Naive Black-Scholes Delta Sticky-Moneyness Delta Dupire LV Delta and Bartlett SABR Delta (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vanna-volga-first-exit-fx-double-no-touch-barriers</loc>
    <lastmod>2026-11-15T04:17:02.841Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vanna-volga-first-exit-fx-double-no-touch-barriers-hero-2026.png</image:loc>
      <image:title>Vanna-Volga &amp; First-Exit Attenuation on FX Double-No-Touch (DNT) Barriers — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (FX 25-Delta Risk Reversals, 10-Delta Butterflies &amp; Event Vol Weights): Survival-attenuated Vanna-Volga, barrier overhedges, and SLV mixing calibration.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Institutional%20FX%20Double-No-Touch%20%28DNT%29%20Pricing%20%26%20Pin-Protection%20Engine&amp;subtitle=Combining%20SLV%20mixing%20calibration%20with%20inward%20barrier%20overhedges%20to%20survive%20barrier%20touches&amp;steps=1.%20Reflection%20TV%3A%3AEvaluate%20infinite-image%20Garman-Kohlhagen%20DNT_TV%28L%2C%20U%3B%20%CF%83_ATM%29%20series%20%28converges%20in%207%20terms%29%7C2.%20SLV%20%2F%20VV%20Mix%3A%3AAdd%20stochastic-vol%20survival%20adjustment%20%28%2B3%25%20to%20%2B9%25%20notional%29%20calibrated%20to%20live%20OT%20broker%20runs%7C3.%20Inward%20Shift%20%CE%B5%3A%3ADealer%20prices%20short%20DNT%20on%20%5BL%20-%2010%20pips%2C%20U%20%2B%2010%20pips%5D%20so%20full%20payout%20unwinds%20smoothly%20before%20hit!%7C4.%20Spot%20Pin%20%26%20Break%3A%3AMid-corridor%20dealer%20%2BGamma%20pins%20spot%3B%20within%2020%20pips%20of%20U%2C%20short-gamma%20stop-run%20triggers!&amp;metrics=TV%20vs%20MARKET%20GAP%3A%3A%2B400%20to%20%2B900%20bps%3A%3ADNT_mkt%20%3E%20DNT_TV%20in%20Mid%7CSLV%20MIXING%20%CE%B7%3A%3A~0.60%20Stoch%20Vol%3A%3A60%25%20Heston%20%2F%2040%25%20Dupire%7COVERHEDGE%20BUFFER%3A%3A8%20-%2015%20Pips%3A%3AEliminates%20Infinite%20%CE%94%7CPIN%20REVERSAL%3A%3A20-35%20Pips%20Out%3A%3AGamma%20Sign%20Flip%20Zone</image:loc>
      <image:title>Pricing and barrier-shift risk management pipeline for an institutional FX Double-No-Touch option</image:title>
      <image:caption>Vanna-Volga &amp; First-Exit Attenuation on FX Double-No-Touch (DNT) Barriers — Pricing and barrier-shift risk management pipeline for an institutional FX Double-No-Touch option (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
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      <image:title>Price of a 3-month symmetric FX Double-No-Touch across Dupire Local Vol SLV Attenuated Vanna-Volga and pure Heston models</image:title>
      <image:caption>Vanna-Volga &amp; First-Exit Attenuation on FX Double-No-Touch (DNT) Barriers — Price of a 3-month symmetric FX Double-No-Touch across Dupire Local Vol SLV Attenuated Vanna-Volga and pure Heston models (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/fx-reverse-knock-out-barrier-discontinuous-vanna-pins</loc>
    <lastmod>2026-11-14T19:47:13.177Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/fx-reverse-knock-out-barrier-discontinuous-vanna-pins-hero-2026.png</image:loc>
      <image:title>FX Reverse Knock-Out (RKO) Barriers: Discontinuous Gamma, Vanna &amp; Overhedges — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (FX 25-Delta Risk Reversals, 10-Delta Butterflies &amp; Event Vol Weights): In-the-money extinction cliffs, negative Vega inversions, and tight digital overhedges.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Greek%20Sign-Inversion%20Trajectory%20Across%20an%20RKO%20Call%20Corridor%20%5BK%2C%20B%5D&amp;subtitle=How%20Delta%2C%20Gamma%2C%20Vega%2C%20and%20Vanna%20invert%20completely%20as%20spot%20rallies%20from%201.0850%20toward%201.1250&amp;steps=Zone%201%20%20Near%20K%20%281.0850%29%3A%3AActs%20like%20cheap%20Call%3A%20Delta%20%3E%200%20%28%2B0.22%29%2C%20Vega%20slightly%20%3C%200%3B%20gains%20if%20spot%20drifts%20higher%7CZone%202%20%20Peak%20Value%20%281.1090%29%3A%3ADelta%20crosses%20ZERO!%20Option%20reaches%20maximum%20mark%20%28~1.85%25%29%3B%20Vega%20%26%20Gamma%20strongly%20negative%7CZone%203%20%20Danger%20%5B1.1180-45%5D%3A%3ADelta%20plunges%20to%20-250%25!%20Holder%20prays%20spot%20DROPS%20%26%20volatility%20CRUSHES%20to%20survive!%7CZone%204%20%20Ramp%20%5B1.1230-50%5D%3A%3A20-pip%20vertical%20overhedge%20unwinds%2020x%20leveraged%20notional%20smoothly%20before%201.1250%20prints!&amp;metrics=DELTA%20%40%201.0850%3A%3A%2B22%25%20EUR%3A%3ABullish%20Initial%20Entry%7CDELTA%20%40%201.1090%3A%3A0%25%20%28Peak%20Mark%29%3A%3ATurning%20Point%20Inside%20%5BK%2CB%5D%7CDELTA%20%40%201.1225%3A%3A-260%25%20EUR!%3A%3AViolent%20Sign%20Inversion!%7CSKEW%20SENSITIVITY%3A%3A%2B20.5%25%20Price%3A%3AFrom%20-0.80v%20RR_25%20Vanna</image:loc>
      <image:title>Greek sign-inversion lifecycle of an Up-and-Out FX Reverse Knock-Out Call as spot rallies from strike K toward barrier B</image:title>
      <image:caption>FX Reverse Knock-Out (RKO) Barriers: Discontinuous Gamma, Vanna &amp; Overhedges — Greek sign-inversion lifecycle of an Up-and-Out FX Reverse Knock-Out Call as spot rallies from strike K toward barrier B (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Impact%20of%2025-Delta%20Risk%20Reversal%20Skew%20on%20Up-and-Out%20RKO%20Call%20Price&amp;subtitle=Price%20%28%25%20of%20notional%29%20of%201.0850%20Call%20%2F%201.1250%20RKO%20at%20fixed%207.20%25%20ATM%20vol%20as%20RR_25%20varies&amp;steps=RR_25%20%3D%20%2B1.50v%20%28Call%20Rich%29%3A%3A0.31%25%20notional%20%28-21%25%20cheaper!%29%3B%20high%20upside%20local%20vol%20knocks%20out%20barrier%201.1250%20rapidly!%7CRR_25%20%3D%200.00v%20%28Flat%20Vol%29%3A%3A0.39%25%20notional%20baseline%3B%20symmetric%20Garman-Kohlhagen%20reflection%20barrier%20valuation%7CRR_25%20%3D%20-0.80v%20%28Mild%20Put%29%3A%3A0.47%25%20notional%20%28%2B21%25%20richer!%29%3B%20damped%20upside%20call%20vol%20slows%20spot%20approach%20to%201.1250%7CRR_25%20%3D%20-2.40v%20%28USD%2FJPY!%29%3A%3A0.64%25%20notional%20%28%2B64%25%20richer!%29%3B%20steep%20negative%20skew%20massively%20raises%20upside%20RKO%20survival!&amp;metrics=%2B1.5v%20SKEW%20PRICE%3A%3A0.31%25%20Notional%3A%3AHigh%20Knock-Out%20Hazard%7C-2.4v%20SKEW%20PRICE%3A%3A0.64%25%20Notional%3A%3A2.06x%20Higher%20Value!%7CVANILLA%20BENCHMARK%3A%3A1.48%25%20Notional%3A%3AUnbarriered%201.0850%20Call%7CCUT%20MONITORING%3A%3AEBS%20Continuous%3A%3A24x5%20Tick%20Surveillance</image:loc>
      <image:title>Valuation of a 3-month EUR/USD Up-and-Out RKO Call across Positive Skew Flat Vol and Negative Skew regimes</image:title>
      <image:caption>FX Reverse Knock-Out (RKO) Barriers: Discontinuous Gamma, Vanna &amp; Overhedges — Valuation of a 3-month EUR/USD Up-and-Out RKO Call across Positive Skew Flat Vol and Negative Skew regimes (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/ny-10am-cut-vs-tokyo-3pm-intraday-fx-theta-clocks</loc>
    <lastmod>2026-11-14T23:15:08.679Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/ny-10am-cut-vs-tokyo-3pm-intraday-fx-theta-clocks-hero-2026.png</image:loc>
      <image:title>New York 10:00 AM Cut vs Tokyo 3:00 PM Expiry: Intraday FX Theta Clocks — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (FX 25-Delta Risk Reversals, 10-Delta Butterflies &amp; Event Vol Weights): Diurnal FX variance weights across Sydney, Tokyo 15:00 JST, and the 10:00 AM ET NY Cut pin.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
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      <image:title>24-hour global FX trading and option expiration cycle from Sydney open through Tokyo 3pm Cut London open NY 10am Cut and WMR 4pm Fix</image:title>
      <image:caption>New York 10:00 AM Cut vs Tokyo 3:00 PM Expiry: Intraday FX Theta Clocks — 24-hour global FX trading and option expiration cycle from Sydney open through Tokyo 3pm Cut London open NY 10am Cut and WMR 4pm Fix (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
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      <image:title>Share of 24-hour EUR/USD and USD/JPY realized variance accrued across four 6-hour global session blocks</image:title>
      <image:caption>New York 10:00 AM Cut vs Tokyo 3:00 PM Expiry: Intraday FX Theta Clocks — Share of 24-hour EUR/USD and USD/JPY realized variance accrued across four 6-hour global session blocks (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/cme-listed-fx-options-vs-interbank-otc-smile-basis</loc>
    <lastmod>2026-11-14T19:46:33.691Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/cme-listed-fx-options-vs-interbank-otc-smile-basis-hero-2026.png</image:loc>
      <image:title>CME Listed FX Options (6E, 6J) vs Interbank OTC Smile Basis Arbitrage — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (FX 25-Delta Risk Reversals, 10-Delta Butterflies &amp; Event Vol Weights): Exact 1/K reciprocal symmetry, IMM futures delivery basis, and CME Clearing vs SA-CCR capital.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
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      <image:title>Cross-market FX arbitrage workflow linking Interbank OTC Risk Reversals and CME Listed 6E/6J Options</image:title>
      <image:caption>CME Listed FX Options (6E, 6J) vs Interbank OTC Smile Basis Arbitrage — Cross-market FX arbitrage workflow linking Interbank OTC Risk Reversals and CME Listed 6E/6J Options (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
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      <image:title>All-in cost comparison in volatility points including bid-ask spread and capital funding drag between OTC ISDA and CME Listed FX options</image:title>
      <image:caption>CME Listed FX Options (6E, 6J) vs Interbank OTC Smile Basis Arbitrage — All-in cost comparison in volatility points including bid-ask spread and capital funding drag between OTC ISDA and CME Listed FX options (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/fx-cross-currency-volatility-triangles-implied-correl</loc>
    <lastmod>2026-11-14T19:46:37.547Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/fx-cross-currency-volatility-triangles-implied-correl-hero-2026.png</image:loc>
      <image:title>FX Cross-Currency Volatility Triangles &amp; Implied Correlation Arbitrage — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (FX 25-Delta Risk Reversals, 10-Delta Butterflies &amp; Event Vol Weights): Exact Law-of-Cosines implied correlation extraction and 3-leg FX triangle dispersion.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=The%203-Leg%20FX%20Volatility%20Triangle%20Correlation%20Arbitrage%20Engine&amp;subtitle=Neutralizing%20single-currency%20USD%2C%20EUR%2C%20and%20JPY%20variance%20shocks%20to%20isolate%20pure%20%CF%81%28EU%2C%20UJ%29&amp;steps=1.%20Quote%203%20Surfaces%3A%3ASample%20matched-tenor%203M%20variance%20or%20DNS%20vols%20on%20EUR%2FUSD%20%287%25%29%2C%20USD%2FJPY%20%2810%25%29%2C%20EUR%2FJPY%20%289.8%25%29%7C2.%20Extract%20%CF%81_imp%3A%3ACompute%20Law-of-Cosines%20implied%20correlation%20%28-0.38%20vs%2030d%20realized%20%2B0.18%20divergence!%29%7C3.%20USD%20Vega%20Weight%3A%3AWeight%20USD%20Vega%20proportional%20to%20%CF%83_i%3A%20%2B%2498k%20EUR%2FJPY%2C%20-%2470k%20EUR%2FUSD%2C%20-%24100k%20USD%2FJPY%7C4.%20Daily%20Cross%20Scalp%3A%3ADelta-hedge%20all%203%20straddles%20daily%20at%20NY%20Cut%3B%20earn%20N_var%20*%202*%CF%83%E2%82%81*%CF%83%E2%82%82*%28%CF%81_real%20-%20%CF%81_imp%29!&amp;metrics=IMPLIED%20CORREL%3A%3A%CF%81%20%3D%20-0.378%3A%3APrices%20Pure%20USD%20Regime%7CRISK-OFF%20TARGET%3A%3A%CF%81%20%3D%20%2B0.250%3A%3AYen%20Surge%20%2B%20Euro%20Drop%7CCROSS%20VOL%20JUMP%3A%3A9.8v%20%E2%86%92%2013.6v%3A%3AAt%20Constant%20Major%20Vols!%7CNO-ARB%20BOUNDS%3A%3A3.0%25%20%E2%89%A4%20%CF%83_EJ%20%E2%89%A4%2017%25%3A%3A%CF%83%E2%82%81-%CF%83%E2%82%82%20%20to%20%28%CF%83%E2%82%81%2B%CF%83%E2%82%82%29</image:loc>
      <image:title>Geometric FX Volatility Triangle linking EUR/USD USD/JPY and EUR/JPY straddles into a pure implied-correlation book</image:title>
      <image:caption>FX Cross-Currency Volatility Triangles &amp; Implied Correlation Arbitrage — Geometric FX Volatility Triangle linking EUR/USD USD/JPY and EUR/JPY straddles into a pure implied-correlation book (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=EUR%2FJPY%20Cross%20Volatility%20Sensitivity%20to%20Correlation%20%CF%81%20%28EU%3D7%25%2C%20UJ%3D10%25%29&amp;subtitle=How%20pure%20correlation%20shifts%20move%20EUR%2FJPY%20fair%20volatility%20by%208.2%20vol%20points%20with%20ZERO%20change%20in%20majors!&amp;steps=Pure%20USD%20Shock%20%28%CF%81%20%3D%20-0.60%29%3A%3A%CF%83_EJ%20%3D%208.06%25!%20Opposing%20USD%20denominator%2Fnumerator%20cancels%2046%25%20of%20major-pair%20variance%7CMild%20USD%20Bias%20%28%CF%81%20%3D%20-0.30%29%3A%3A%CF%83_EJ%20%3D%2010.34%25%3B%20normal%20peacetime%20Fed-driven%20G10%20dollar%20trading%20environment%7CUncorrelated%20%28%CF%81%20%3D%200.00%29%3A%3A%CF%83_EJ%20%3D%2012.21%25%20%3D%20%E2%88%9A%287%C2%B2%20%2B%2010%C2%B2%29%3B%20orthogonal%20ECB%20and%20BoJ%20idiosyncratic%20policy%20moves%7CGlobal%20Carry%20Crash%20%28%CF%81%20%3D%20%2B0.45%29%3A%3A%CF%83_EJ%20%3D%2014.56%25!%20Simultaneous%20Euro%20drop%20%2B%20Yen%20safe-haven%20surge%20inflates%20cross%20vol%20%2B81%25!&amp;metrics=USD%20SHOCK%20VOL%3A%3A8.06%25%20EUR%2FJPY%3A%3AAt%20%CF%81%20%3D%20-0.60%7CCARRY%20CRASH%20VOL%3A%3A14.56%25%20EUR%2FJPY%3A%3AAt%20%CF%81%20%3D%20%2B0.45%20%28%2B6.5v!%29%7CEXACT%20INSTRUMENT%3A%3AFX%20Var%20Swaps%3A%3AZero%20Strike-Drift%20Error%7CCME%20CROSS%20ROOT%3A%3ARY%20%28EUR%2FJPY%29%3A%3ACleared%20Cross%20Options</image:loc>
      <image:title>Implied cross volatility of EUR/JPY across four correlation regimes holding EUR/USD at 7% and USD/JPY at 10%</image:title>
      <image:caption>FX Cross-Currency Volatility Triangles &amp; Implied Correlation Arbitrage — Implied cross volatility of EUR/JPY across four correlation regimes holding EUR/USD at 7% and USD/JPY at 10% (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/cross-currency-cip-basis-swaps-fx-forward-point-vol</loc>
    <lastmod>2026-11-15T10:24:25.909Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/cross-currency-cip-basis-swaps-fx-forward-point-vol-hero-2026.png</image:loc>
      <image:title>Cross-Currency CIP Basis Swaps &amp; FX Forward-Point Volatility in Options — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (FX 25-Delta Risk Reversals, 10-Delta Butterflies &amp; Event Vol Weights): SOFR CSA discounting, Cross-Currency Basis α_CIP, and Hull-White rate-FX covariance.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Multi-Curve%20CSA%20%26%203-Factor%20Hybrid%20FX%20Surface%20Architecture%20%28%3E1Y%29&amp;subtitle=Separating%20SOFR%20collateral%20discounting%20from%20CIP-implied%20FX%20forward%20projection%20and%20rate%20vol&amp;steps=1.%20Discount%20Curve%3A%3ABootstrap%20CME%20SOFR%20OIS%20discount%20factors%20DF_USD%28T%29%20for%20USD%20CSA%20collateralized%20trades%7C2.%20CIP%20Projection%3A%3AStrip%20FX%20swap%20points%20%28%3C2Y%29%20%26%20Cross-Currency%20Basis%20Swaps%20%282Y-30Y%29%20for%20exact%20F_mkt%280%2CT%29%7C3.%20Swaption%20Input%3A%3AIngest%20CME%20SOFR%20%26%20JPY%2FEUR%20normal%20swaption%20vol%20grids%20%CF%83_N_dom%2C%20%CF%83_N_for%7C4.%20Hybrid%20Calibration%3A%3ACalibrate%203-Factor%20FX-HW-HW%20correlations%20so%20model%20matches%201Y-10Y%20DNS%2FRR%2FBF%20pillars!&amp;metrics=DISCOUNT%20RATE%3A%3ACSA%20Currency%20OIS%3A%3ASOFR%20for%20USD%20Collateral%7CQ-END%20TURN%20SPIKE%3A%3A-80%20to%20-180%20bps%3A%3ADec%2031%20%2F%20Mar%2031%20CIP%20Jump%7C1M%20RATE%20IMPACT%3A%3A%3C%200.01%20Vol%20Pts%3A%3ASafe%20to%20Ignore%20%3C%206M%7C5Y%20RATE%20IMPACT%3A%3A0.80%20-%202.40%20Vol%3A%3AT%C2%B2%20Scaling%20Dominates!</image:loc>
      <image:title>Dual-curve CSA discounting and 3-factor FX-Hull-White calibration pipeline for long-dated FX options</image:title>
      <image:caption>Cross-Currency CIP Basis Swaps &amp; FX Forward-Point Volatility in Options — Dual-curve CSA discounting and 3-factor FX-Hull-White calibration pipeline for long-dated FX options (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Share%20of%20Terminal%20FX%20Forward%20Variance%20Driven%20by%20Interest-Rate%20Vol&amp;subtitle=How%20%E2%85%93%C2%B7%CF%83_N%C2%B2%C2%B7T%C2%B3%20rate-differential%20variance%20overtakes%20pure%20spot%20FX%20variance%20at%20long%20maturities&amp;steps=3-Month%20Expiry%3A%3A0.4%25%20rate-variance%20share%3B%2099.6%25%20pure%20spot%20FX%20variance%E2%80%94standard%20Garman-Kohlhagen%20exact%7C1-Year%20Expiry%3A%3A4.8%25%20rate-variance%20share%3B%20forward-delta%20convention%20insulates%20strikes%20from%20parallel%20OIS%20moves%7C5-Year%20Expiry%3A%3A27.5%25%20rate-variance%20share!%20Ignoring%20CME%20SOFR%20swaption%20vol%20misprices%205Y%20FX%20options%20severely%7C15-Year%20PRDC%20Tenor%3A%3A61.0%25%20rate-variance%20share!%20Long-dated%20FX%20exotics%20are%20predominantly%20interest-rate%20derivatives!&amp;metrics=3M%20RATE%20SHARE%3A%3A0.4%25%20of%20Var%3A%3APure%20Spot%20FX%20Regime%7C5Y%20RATE%20SHARE%3A%3A27.5%25%20of%20Var%3A%3AHybrid%20Model%20Mandatory%7C15Y%20RATE%20SHARE%3A%3A61.0%25%20of%20Var%3A%3ALeads%20Directly%20to%20PRDCs!%7CREGULATORY%20BENCH%3A%3ASOFR%20%2F%20ESTR%3A%3APost-LIBOR%20RFR%20Standard</image:loc>
      <image:title>Percentage of total terminal FX forward variance attributable to interest-rate volatility and rate-FX covariance from 3M to 15Y</image:title>
      <image:caption>Cross-Currency CIP Basis Swaps &amp; FX Forward-Point Volatility in Options — Percentage of total terminal FX forward variance attributable to interest-rate volatility and rate-FX covariance from 3M to 15Y (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/power-reverse-dual-currency-prdc-usdjpy-vega-hedging</loc>
    <lastmod>2026-11-14T19:50:26.952Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/power-reverse-dual-currency-prdc-usdjpy-vega-hedging-hero-2026.png</image:loc>
      <image:title>Power Reverse Dual-Currency (PRDC) Notes &amp; Long-Dated USD/JPY Skew — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (FX 25-Delta Risk Reversals, 10-Delta Butterflies &amp; Event Vol Weights): How Bermudan duration-extension cascades drive 10Y–30Y USD/JPY skew and USD swap receivers.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
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      <image:title>Four-stage PRDC duration extension and cross-asset hedging cascade during a risk-off USD/JPY and Treasury yield drop</image:title>
      <image:caption>Power Reverse Dual-Currency (PRDC) Notes &amp; Long-Dated USD/JPY Skew — Four-stage PRDC duration extension and cross-asset hedging cascade during a risk-off USD/JPY and Treasury yield drop (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Inverted%20Term%20Structure%20of%20USD%2FJPY%2025-Delta%20Skew%20%281M%20to%2020Y%29&amp;subtitle=Unlike%20equities%20where%20skew%20flattens%20at%20long%20horizons%2C%20PRDC%20supply%20keeps%2010Y-20Y%20JPY%20skew%20extreme!&amp;steps=1-Month%20USD%2FJPY%20RR%3A%3A-1.55%20vol%20pts%3B%20driven%20by%20short-term%20leveraged%20FX%20carry%20unwind%20hedging%20and%20BoJ%20meetings%7C1-Year%20USD%2FJPY%20RR%3A%3A-2.10%20vol%20pts%3B%20corporate%20exporter%20hedging%20blends%20with%20macro%20fund%20tail%20overlays%7C5-Year%20USD%2FJPY%20RR%3A%3A-3.45%20vol%20pts%3B%20medium-term%20structured%20notes%20and%20cross-currency%20basis%20covariance%20build%7C15-Year%20PRDC%20Zone!%3A%3A-5.60%20vol%20pts!%20Structural%20one-way%20bank%20demand%20for%20deep%20OTM%20JPY%20Calls%20defies%20CLT%20flattening!&amp;metrics=1M%20JPY%20SKEW%3A%3A-1.55%20Vol%20Pts%3A%3ATactical%20Carry%20Hedge%7C15Y%20PRDC%20SKEW%3A%3A-5.60%20Vol%20Pts%3A%3A3.6x%20Steeper%20Than%201M!%7CRV%20ARBITRAGE%3A%3ASell%2015Y%20%2F%20Buy%201Y%3A%3ASkew-Flattener%20Carry%7CSUPERVISION%3A%3AJFSA%20%2F%20BoJ%20%2F%20Fed%3A%3ASystemic%20Exotic%20Review</image:loc>
      <image:title>Term structure of USD/JPY 25-delta Risk Reversal skew from 1-month out to 20-year maturities</image:title>
      <image:caption>Power Reverse Dual-Currency (PRDC) Notes &amp; Long-Dated USD/JPY Skew — Term structure of USD/JPY 25-delta Risk Reversal skew from 1-month out to 20-year maturities (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/garman-kohlhagen-dual-ois-curve-rho-phi-fx-hedging</loc>
    <lastmod>2026-11-14T19:51:38.643Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/garman-kohlhagen-dual-ois-curve-rho-phi-fx-hedging-hero-2026.png</image:loc>
      <image:title>Garman-Kohlhagen Dual-OIS Curve Hedging: Domestic Rho &amp; Foreign Phi — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (FX 25-Delta Risk Reversals, 10-Delta Butterflies &amp; Event Vol Weights): Spot-hedged vs Forward-hedged rate exposure and CME SOFR + FX Swap ladder sweeps.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Institutional%20Spot%20Execution%20%2B%20Afternoon%20FX%20Swap%20%26%20SOFR%20Sweep&amp;subtitle=Combining%20tight%20EBS%2FECN%20intraday%20spot%20liquidity%20with%20end-of-day%20tenor%20forward-point%20hedging&amp;steps=Intraday%20Spot%20Hedge%3A%3AExecute%20fast%20gamma%20scalps%20in%20liquid%20Spot%20FX%20%28EBS%20%2F%20ATC%20%2F%20Darwinex%29%20for%200.1-pip%20spreads%7CBucket%20Tenor%20Risk%3A%3AAggregate%20unhedged%20Rho_dom%20%26%20Phi_for%20into%201M%2C%203M%2C%206M%2C%201Y%2C%20and%202Y%20maturity%20buckets%7CFX%20Swap%20Roll%3A%3AExecute%20Spot-vs-Forward%20FX%20Swaps%20to%20convert%20overnight%20spot%20positions%20into%20T-Forwards!%7CCME%20SOFR%20Residual%3A%3AHedge%20remaining%20deep-ITM%20-T*V%20USD%20CSA%20discounting%20Rho%20with%20CME%20SR3%20SOFR%20futures!&amp;metrics=SPOT-HEDGE%20RHO%3A%3A%2B%2451.8k%20%2F%20bp%3A%3AOn%20%E2%82%AC100M%201Y%20ATM%20Call%7CFWD-HEDGE%20RHO%3A%3A-%240.33k%20%2F%20bp%3A%3A-99.4%25%20Risk%20Reduction!%7CPHI%20RESIDUAL%3A%3A%240.00%20%2F%20bp%3A%3A100%25%20Eliminated%20by%20Fwd%7CSOFR%20CONTRACT%3A%3ACME%20SR3%20%28%2425%2Fbp%29%3A%3A3M%20SOFR%20Futures%20Strip</image:loc>
      <image:title>Two-step institutional FX spot-delta execution and afternoon FX Swap plus CME SOFR Rho/Phi bucket sweep</image:title>
      <image:caption>Garman-Kohlhagen Dual-OIS Curve Hedging: Domestic Rho &amp; Foreign Phi — Two-step institutional FX spot-delta execution and afternoon FX Swap plus CME SOFR Rho/Phi bucket sweep (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Unhedged%20Rate%20DV01%20%28%24%20per%20bp%20on%20%24100M%20ATM%20Call%29%3A%20Spot%20vs%20Forward%20Hedge&amp;subtitle=Linear%20growth%20of%20Spot-Hedged%20Rho%20with%20maturity%20T%20versus%20tiny%20Forward-Hedged%20PV%20residual&amp;steps=1-Month%20Tenor%3A%3ASpot-Hedged%3A%20%244%2C300%2Fbp%20vs%20Fwd-Hedged%3A%20-%2411%2Fbp%3B%20already%20risky%20across%20surprise%20central-bank%20cuts%7C3-Month%20Tenor%3A%3ASpot-Hedged%3A%20%2412%2C900%2Fbp%20vs%20Fwd-Hedged%3A%20-%2458%2Fbp%3B%203M%20FX%20swap%20sweep%20mandatory%20before%20FOMC%7C1-Year%20Tenor%3A%3ASpot-Hedged%3A%20%2451%2C800%2Fbp%20vs%20Fwd-Hedged%3A%20-%24328%2Fbp%3B%20unhedged%20spot%20book%20becomes%20a%20rates%20bet!%7C3-Year%20Tenor%3A%3ASpot-Hedged%3A%20%24148%2C000%2Fbp%20vs%20Fwd-Hedged%3A%20-%241%2C740%2Fbp%20%28hedged%20with%2069%20CME%20SR3%20SOFR%20lots!%29&amp;metrics=1Y%20SPOT-HEDGE%20DV01%3A%3A%2451%2C800%20%2F%20bp%3A%3ADominates%20Vol%20P%26L!%7C1Y%20FWD-HEDGE%20DV01%3A%3A%24328%20%2F%20bp%3A%3APure%20PV%20Discounting%7C3Y%20SR3%20HEDGE%3A%3A~14-69%20Lots%3A%3A%2425%2Fbp%20per%203M%20SR3%7CCIP%20LINK%3A%3AIncludes%20%CE%B1_CIP%3A%3AVia%20FX%20Swap%20Points</image:loc>
      <image:title>Dollar DV01 per $100M FX option notional across 1-month 3-month 1-year and 3-year tenors comparing Spot-Hedged vs Forward-Hedged</image:title>
      <image:caption>Garman-Kohlhagen Dual-OIS Curve Hedging: Domestic Rho &amp; Foreign Phi — Dollar DV01 per $100M FX option notional across 1-month 3-month 1-year and 3-year tenors comparing Spot-Hedged vs Forward-Hedged (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/fx-variance-swaps-vs-forward-volatility-agreements</loc>
    <lastmod>2026-11-14T19:56:13.876Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/fx-variance-swaps-vs-forward-volatility-agreements-hero-2026.png</image:loc>
      <image:title>FX Variance Swaps vs Forward Volatility Agreements (FVAs) Desk Guide — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (FX 25-Delta Risk Reversals, 10-Delta Butterflies &amp; Event Vol Weights): Strike-drift immunity via WMR-fixed FX Variance Swaps and T1 cash-settled FVAs.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=OTC%20FX%20Variance%20Swap%20vs%20Forward%20Volatility%20Agreement%20%28FVA%29%20Lifecycle&amp;subtitle=Choosing%20between%2024h%20WMR%20fixing%20realized%20variance%20and%20T%E2%82%81%20implied%20DNS%20settlement&amp;steps=FX%20Variance%20Swap%3A%3AFixes%20daily%20at%2016%3A00%20London%20WMR%20%28or%20ECB%29%3B%20pays%20N_var%20*%20%28RV_WMR%20-%20K_var%C2%B2%29%20at%20maturity%20T%7CIntraday%20Whip%20Gap%3A%3ADealer%20hedges%20continuously%20on%20EBS%20vs%201%20daily%20WMR%20print%20-%3E%20bears%20intraday-vs-close%20basis!%7CFX%20FVA%20Contract%3A%3ALocks%20K_FVA%20today%20for%20%5BT%E2%82%81%2C%20T%E2%82%82%5D%3B%20zero%20fixing%20exposure%20or%20spot%20drift%20during%20%5B0%2C%20T%E2%82%81%5D%7CT%E2%82%81%20Cash%20Settlement%3A%3AAt%2010%3A00%20AM%20NY%20Cut%20on%20T%E2%82%81%2C%20pays%20Straddle%28%CF%83_ATM_T%E2%82%81%29%20-%20Straddle%28K_FVA%29%20in%20cash%20%28or%20physical%29!&amp;metrics=EUR%2FUSD%20K_VAR%20LIFT%3A%3A%2B0.32%20Vol%20Pts%3A%3ATight%20G10%20Smile%20Wedge%7CUSD%2FJPY%20K_VAR%20LIFT%3A%3A%2B0.73%20Vol%20Pts%3A%3AFat%20BoJ%2010d%20Tails%7CUSD%2FMXN%20K_VAR%20LIFT%3A%3A%2B1.65%20Vol%20Pts%3A%3ASteep%20EM%20Jump%20Wings%7CFVA%20CLIQUET%20DISC%3A%3A-0.18%20to%20-0.45v%3A%3ACalibrated%20via%20SLV</image:loc>
      <image:title>Structural comparison of OTC FX Variance Swap daily WMR fixing accrual versus FX FVA forward-start ATM straddle cash settlement</image:title>
      <image:caption>FX Variance Swaps vs Forward Volatility Agreements (FVAs) Desk Guide — Structural comparison of OTC FX Variance Swap daily WMR fixing accrual versus FX FVA forward-start ATM straddle cash settlement (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Intraday%205-Min%20Realized%20Vol%20vs%20Daily%20WMR%20Fixing%20Vol%20%28Basis%20Gap%29&amp;subtitle=When%20mean-reverting%20intraday%20central-bank%20whipsaws%20outperform%20daily%20WMR%20FX%20Variance%20Swaps&amp;steps=Trend%20Regime%20%28Strong%20USD%29%3A%3AWMR%20Daily%20RV%20%3D%2010.4%25%20vs%205-Min%20RV%20%3D%209.8%25%3B%20clean%20multi-day%20trends%20boost%20daily%20close-to-close!%7CQuiet%20Summer%20Pin%3A%3AWMR%20Daily%20RV%20%3D%205.6%25%20vs%205-Min%20RV%20%3D%205.9%25%3B%20minimal%20gap%20between%20continuous%20scalp%20and%20WMR%20fix%7CBoJ%20MoF%20Intervention!%3A%3AWMR%20Daily%20RV%20%3D%2013.2%25%20vs%205-Min%20RV%20%3D%2017.8%25!%20Intraday%20450-pip%20intervention%20%26%20bounce%20missed%20by%20WMR!%7CCPI%20%2F%20FOMC%20Whip-Saw%3A%3AWMR%20Daily%20RV%20%3D%209.1%25%20vs%205-Min%20RV%20%3D%2011.9%25%3B%2008%3A30%20spike%20fades%20before%2011%3A00%20AM%20ET%20London%20WMR!&amp;metrics=TREND%20WINNER%3A%3AFX%20Var%20Swap%3A%3ADaily%20Fixes%20Capture%20Drift%7CWHIPSAW%20WINNER%3A%3AIntraday%20Scalp%3A%3A%2B4.6v%20Edge%20on%20BoJ%20Whip!%7CFIXING%20TIMESTAMP%3A%3A11%3A00%20AM%20ET%3A%3A16%3A00%20London%20WMR%20Print%7CISDAMARGIN%3A%3ASIMM%20Vega%20Bucket%3A%3ACleared%20or%20Bilateral</image:loc>
      <image:title>Comparison of continuous 5-minute realized volatility versus daily 4pm WMR fixing volatility across four FX episodes</image:title>
      <image:caption>FX Variance Swaps vs Forward Volatility Agreements (FVAs) Desk Guide — Comparison of continuous 5-minute realized volatility versus daily 4pm WMR fixing volatility across four FX episodes (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/corporate-fx-target-redemption-forwards-tarf-kiko-risk</loc>
    <lastmod>2026-11-14T19:46:29.996Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/corporate-fx-target-redemption-forwards-tarf-kiko-risk-hero-2026.png</image:loc>
      <image:title>Corporate FX Target Redemption Forwards (TARFs) &amp; KIKO Gamma Traps — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (FX 25-Delta Risk Reversals, 10-Delta Butterflies &amp; Event Vol Weights): Capped target upside vs uncapped 2x geared Knock-In obligations across 24 monthly fixings.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=The%20Asymmetric%20Path-Dependency%20Trap%20of%20a%2024-Month%20FX%20TARF&amp;subtitle=Why%20winning%20paths%20vanish%20in%204%20months%20while%20losing%20paths%20double%20notional%20for%2024%20months&amp;steps=Inception%20%28%22Zero%20Cost%22%29%3A%3AExporter%20gets%20K*%20%2B400%20pips%20above%20forward%20by%20selling%20Target%20Cap%20%2B%202x%20EKI%20Put%20Strip%7CFavorable%20Path%20%28Win%29%3A%3AAccrues%20target%20fast%3B%20knocks%20out%20in%20Month%204%20capping%20max%20cumulative%20gain%20at%20%242.0M%7CAdverse%20Shock%20%28EKI%20Hit%29%3A%3ASpot%20pierces%20B_EKI%3B%20target%20counter%20freezes%20at%200%3B%20notional%20DOUBLES%20to%202x%20%28%2410M%2Fmo%29!%7CPanic%20Unwind%20Cascade%3A%3ACorporates%20rush%20to%20buy%20USD%20stop-loss%20covers%20simultaneously%20as%20dealer%20gamma%20flips!&amp;metrics=MAX%20POSSIBLE%20GAIN%3A%3A%242.00M%20Fixed%3A%3ACapped%20by%20Target%20Cap%7CDOWNSIDE%20EXPOSURE%3A%3A%24220M%20Notional!%3A%3A22%20Mos%20%C3%97%20%2410M%20Uncapped%7CPAYOFF%20ASYMMETRY%3A%3A1%20%3A%205%2B%20Tail%20Risk%3A%3ANegative%20Skew%20Embedded%7CCONDUCT%20REGULATOR%3A%3AESMA%20%2F%20MAS%20%2F%20FSC%3A%3ASuitability%20Crackdowns</image:loc>
      <image:title>Asymmetric path branching of a 24-month corporate FX TARF comparing fast 4-month target knock-out against full 24-month 2x leveraged trap</image:title>
      <image:caption>Corporate FX Target Redemption Forwards (TARFs) &amp; KIKO Gamma Traps — Asymmetric path branching of a 24-month corporate FX TARF comparing fast 4-month target knock-out against full 24-month 2x leveraged trap (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Aggregated%20Bank%20Dealer%20Gamma%20Profile%20Across%20a%20Corporate%20TARF%20Cluster&amp;subtitle=How%20corporate%20TARF%20supply%20pins%20spot%20near%20K*%20and%20triggers%20air-pockets%20past%20the%20EKI%20barrier&amp;steps=Favorable%20Zone%20%28Near%20K*%29%3A%3A%2B%242.8B%20Dealer%20Long%20Gamma!%20Target%20knock-out%20barrier%20acts%20like%20a%20magnetic%20RKO%20damper%7CNo-Man%E2%80%99s%20Land%20%5BK*%2C%20EKI%5D%3A%3A%2B%241.4B%20Dealer%20Long%20Gamma%3B%20corporate%20earns%20%240%20%26%20pays%20%240%20while%20waiting%20for%20next%20fixing%7CEKI%20Breach%20Zone!%3A%3A-%243.6B%20Dealer%20SHORT%20Gamma%20Cliff!%202x%20European%20Knock-In%20puts%20jump%20from%200x%20to%202x%20delta!%7CCorporate%20Capitulation%3A%3AMargin%20calls%20under%20MAS%20%2F%20ESMA%20%2F%20bank%20credit%20lines%20force%20corporates%20to%20buy%20spot%20at%20the%20top!&amp;metrics=NEAR-K*%20REGIME%3A%3AStabilizing%20%2B%CE%93%3A%3ASuppresses%20Calm%20Vol%7CAT-EKI%20CLIFF%3A%3ASevere%20Short%20-%CE%93%3A%3A2x%20Digital-Put%20Jump%7CHISTORICAL%20CASE%3A%3A2008%20KRW%20%2F%202015%20CNH%3A%3AMulti-Billion%20Unwinds%7CSUITABILITY%20RULE%3A%3AMiFID%20II%20%2F%20MAS%3A%3AComplex%20Product%20Gate</image:loc>
      <image:title>Dealer net gamma profile across spot levels on an aggregated $10B corporate USD/CNH or EUR/USD TARF book</image:title>
      <image:caption>Corporate FX Target Redemption Forwards (TARFs) &amp; KIKO Gamma Traps — Dealer net gamma profile across spot levels on an aggregated $10B corporate USD/CNH or EUR/USD TARF book (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/heston-sabr-stochastic-local-vol-fx-exotic-calibration</loc>
    <lastmod>2026-11-14T19:50:33.344Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/heston-sabr-stochastic-local-vol-fx-exotic-calibration-hero-2026.png</image:loc>
      <image:title>Calibrating Stochastic Local Volatility (Heston-SLV) to FX Surfaces &amp; Barriers — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (FX 25-Delta Risk Reversals, 10-Delta Butterflies &amp; Event Vol Weights): Gyöngy’s leverage surface L(S, t) = σ_Dup / √E[V|S]: 0.00 bps vanilla error + exact barrier pricing.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
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      <image:title>Single-pass forward Fokker-Planck ADI PDE calibration workflow computing SLV Leverage Surface L(S,t) and exotic mixing fraction eta</image:title>
      <image:caption>Calibrating Stochastic Local Volatility (Heston-SLV) to FX Surfaces &amp; Barriers — Single-pass forward Fokker-Planck ADI PDE calibration workflow computing SLV Leverage Surface L(S,t) and exotic mixing fraction eta (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Empirical%20Interbank%20FX%20SLV%20Mixing%20Fraction%20%28%CE%B7%29%20by%20Currency%20Pair&amp;subtitle=Implied%20stochastic-vol%20weight%20%CE%B7%20%E2%88%88%20%5B0%2C%201%5D%20backed%20out%20from%20live%20interbank%20One-Touch%20%26%20DNT%20runs&amp;steps=EUR%2FUSD%20%28%CE%B7%20%3D%200.62%29%3A%3A62%25%20Stochastic%20Vol%20%2F%2038%25%20Local%20Vol%3B%20liquid%20benchmark%20stability%20across%201M-1Y%20range%20binaries%7CGBP%2FUSD%20%28%CE%B7%20%3D%200.58%29%3A%3A58%25%20Stochastic%20Vol%3B%20slightly%20stronger%20local-skew%20leverage%20around%20UK%20fiscal%20barrier%20levels%7CUSD%2FJPY%20%28%CE%B7%20%3D%200.67%29%3A%3A67%25%20Stochastic%20Vol!%20High%20vol-of-vol%20carry%20regime%20requires%20higher%20stochastic%20survival%20weight%7CUSD%2FMXN%20EM%20%28%CE%B7%20%3D%200.48%20%2B%20Jump%29%3A%3A48%25%20Diffusive%20SV%20%2B%20Bates%20Jump%20component%3B%20local%20devaluation%20barriers%20carry%20stronger%20local%20weight&amp;metrics=G10%20CONSENSUS%20%CE%B7%3A%3A0.55%20-%200.68%3A%3AUniversal%20Street%20Range%7CRECALIBRATION%3A%3AIntraday%20%40%2010am%3A%3ASynced%20to%20Broker%20OT%20Run%7CGPU%20MONTE%20CARLO%3A%3A100k%20Paths%20%2F%2080ms%3A%3APrices%2024-Mo%20TARF%20Book%7CMARGIN%20OUTPUT%3A%3ASIMM%20Vega%20Grid%3A%3AFeeds%20Uncleared%20Margin</image:loc>
      <image:title>Calibrated SLV mixing fraction eta across EUR/USD USD/JPY GBP/USD and Emerging Market currency pairs</image:title>
      <image:caption>Calibrating Stochastic Local Volatility (Heston-SLV) to FX Surfaces &amp; Barriers — Calibrated SLV mixing fraction eta across EUR/USD USD/JPY GBP/USD and Emerging Market currency pairs (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/isda-simm-fx-volatility-vega-curvature-margin-buckets</loc>
    <lastmod>2026-11-14T19:51:28.137Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/isda-simm-fx-volatility-vega-curvature-margin-buckets-hero-2026.png</image:loc>
      <image:title>ISDA SIMM Initial Margin for OTC FX Options: Vega &amp; Curvature Buckets — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (FX 25-Delta Risk Reversals, 10-Delta Butterflies &amp; Event Vol Weights): 10-day 99% VaR FX Vega vertices, SF(t) Curvature charges, and $50M bilateral UMR optimization.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Pre-Trade%20FX%20Volatility%20Margin%20Routing%20%26%20MVA%20Optimization%20Engine&amp;subtitle=Minimizing%20segregated%20collateral%20via%20%2450M%20ISDA%20thresholds%2C%20SIMM%20netting%2C%20and%20CME%20FX%20clearing&amp;steps=1.%20Compute%20%CE%94SIMM%3A%3ACalculate%20marginal%20Delta%2C%20Vega%20%28%CF%83%C2%B7%E2%88%82V%2F%E2%88%82%CF%83%29%2C%20and%20Curvature%20impact%20across%20candidate%20banks%7C2.%20%2450M%20Gate%20Check%3A%3ARoute%20OTC%20trade%20to%20ISDA%20counterparty%20sitting%20%3C%20%2445M%20SIMM%20%28%3D%20%240%20marginal%20posted%20IM!%29%7C3.%20Compression%20%2F%20CME%3A%3AOnce%20bilateral%20lines%20near%20%2450M%2C%20route%20standard%20G10%20tenors%20to%20CME%206E%2F6J%20%285d%20vs%2010d%20VaR!%29%7C4.%20Wing%20Cap%20Relief%3A%3ABuy%20cheap%203-delta%20OTC%20tail%20wings%20to%20slash%20negative%20SIMM%20Curvature%20sum%20%E2%88%91%20min%28CVR%2C%200%29!&amp;metrics=SIMM%20HORIZON%3A%3A10-Day%2099%25%20VaR%3A%3AUnclear%20Bilateral%20Rule%7CCME%20CCP%20HORIZON%3A%3A5-Day%2099%25%20VaR%3A%3A%E2%88%9A2%20Lower%20Base%20Factor!%7CEXEMPT%20FX%3A%3ASpot%20%26%20Forwards!%3A%3ACount%20in%20AANA%20Only%7CREHYPOTHECATION%3A%3A0%25%20Permitted%3A%3ASegregated%20Custodian</image:loc>
      <image:title>Institutional FX volatility margin routing engine allocating trades across bilateral ISDA $50M SIMM thresholds and CME Clearing</image:title>
      <image:caption>ISDA SIMM Initial Margin for OTC FX Options: Vega &amp; Curvature Buckets — Institutional FX volatility margin routing engine allocating trades across bilateral ISDA $50M SIMM thresholds and CME Clearing (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Segregated%20Initial%20Margin%20Posted%20%28%24M%29%20on%20a%20%24200M-SIMM%20FX%20Vol%20Book&amp;subtitle=Dramatic%20capital%20savings%20from%20multi-ISDA%20threshold%20management%20%2B%20CME%20hybrid%20clearing&amp;steps=Single%20FXPB%20Concentration%3A%3A%24150M%20segregated%20IM%20posted%20%28%24200M%20minus%201x%20%2450M%20threshold%29%3B%20heavy%20custodian%20MVA%20drag%7C2%20ISDA%20Banks%20%28%24100M%20Each%29%3A%3A%24100M%20segregated%20IM%20posted%20%28%24200M%20minus%202x%20%2450M%20thresholds%29%3B%20saves%20%2450M%20Treasury%20lockup%7C4%20ISDA%20Banks%20%2B%20Netting%3A%3A%2424M%20segregated%20IM%20posted%20%28minor%20cross-bucket%20fragmentation%20minus%204x%20%2450M%20thresholds!%29%7C4%20ISDAs%20%28%3C%2445M%29%20%2B%20CME%206E%2F6J%3A%3A%2418M%20CME%20CCP%20margin%20ONLY%20%28%240%20custodial%20UMR%20IM!%29%3B%20optimal%20institutional%20FX%20architecture!&amp;metrics=SINGLE%20PB%20LOCKUP%3A%3A%24150M%20Custodial%3A%3AWorst%20Capital%20Drag%7C4-ISDA%20%2B%20CME%3A%3A%2418M%20CCP%20Only%3A%3A-88%25%20Less%20Locked%20Cash!%7CCURVATURE%20SAVER%3A%3ABuy%203d%20Tail%20Cap%3A%3ACuts%20Short-Gamma%20CVR%7CGLOBAL%20REGULATORS%3A%3ACFTC%20%2F%20ESMA%20%2F%20MAS%3A%3AHarmonized%20BCBS%20UMR</image:loc>
      <image:title>Posted Initial Margin in millions of dollars on a $200M-SIMM global FX volatility fund across four clearing and counterparty setups</image:title>
      <image:caption>ISDA SIMM Initial Margin for OTC FX Options: Vega &amp; Curvature Buckets — Posted Initial Margin in millions of dollars on a $200M-SIMM global FX volatility fund across four clearing and counterparty setups (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/cboe-cor1m-cor3m-implied-correlation-triangle-math</loc>
    <lastmod>2026-11-14T19:51:49.697Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/cboe-cor1m-cor3m-implied-correlation-triangle-math-hero-2026.png</image:loc>
      <image:title>Cboe COR1M &amp; COR3M Implied Correlation Indices: Top-50 SPX Math &amp; Signals — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (Implied Correlation, Index Dispersion Baskets &amp; Earnings Vol Crush): Exact Cboe 50-stock implied correlation formula, ATM vs strip basis, and COR3M-COR1M slope signals.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Cboe%20COR1M%20%2F%20COR3M%20Real-Time%20Index%20Computation%20Pipeline&amp;subtitle=How%20Cboe%20transforms%2051%20live%20option%20chains%20every%2015%20seconds%20into%20a%20single%20implied%20correlation%20benchmark&amp;steps=1.%20Top-50%20Cap%20Weights%3A%3ARank%20SPX%20constituents%20by%20float%20cap%3B%20normalize%20top-50%20weights%20so%20%E2%88%91%20w_i%20%3D%201.0000%7C2.%2050d%20ATM%20IV%20Filtering%3A%3ABracket%20synthetic%20forward%20F%20on%20T_1%20and%20T_2%20chains%3B%20average%20Call%2FPut%20IV%20at%2050-delta%7C3.%20Total-Var%20Roll%20Blend%3A%3AInterpolate%20T_1%20and%20T_2%20total%20variances%20linearly%20to%20exact%2030d%20%28COR1M%29%20or%2090d%20%28COR3M%29%7C4.%20Equicorrelation%20Solve%3A%3ACompute%20100%20%C3%97%20%5B%CF%83_SPX%C2%B2%20%E2%88%92%20%E2%88%91%20w_i%C2%B2%CF%83_i%C2%B2%5D%20%2F%20%5B%28%E2%88%91%20w_i%CF%83_i%29%C2%B2%20%E2%88%92%20%E2%88%91%20w_i%C2%B2%CF%83_i%C2%B2%5D%20every%2015%20seconds&amp;metrics=TICK%20DISSEMINATION%3A%3AEvery%2015%20Sec%3A%3ARTH%2009%3A31%E2%80%9316%3A15%20ET%7CTENOR%20SUITE%3A%3A1M%20%C2%B7%203M%20%C2%B7%206M%20%C2%B7%201Y%3A%3AConstant-Maturity%20Suite%7CCOMPLEXITY%3A%3AO%28N%29%20Exact%20Eval%3A%3A50%20Stocks%20%2B%201%20Index%7CRESCALING%20BIAS%3A%3A-1.5%20to%20-3.0%20Pts%3A%3ATop-50%20vs%20Full%20500%20SPX</image:loc>
      <image:title>Four-stage Cboe COR1M and COR3M real-time index calculation pipeline from OPRA feeds to equicorrelation output</image:title>
      <image:caption>Cboe COR1M &amp; COR3M Implied Correlation Indices: Top-50 SPX Math &amp; Signals — Four-stage Cboe COR1M and COR3M real-time index calculation pipeline from OPRA feeds to equicorrelation output (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Benchmark%20Wedge%3A%20Cboe%20ATM%20COR1M%20vs%20True%20500-Stock%20Variance%20Correlation&amp;subtitle=Why%20traders%20must%20never%20plug%20raw%20Cboe%20COR1M%20prints%20directly%20into%20an%20OTC%20variance-swap%20term%20sheet&amp;steps=Official%20Cboe%20COR1M%3A%3A21.8%20Pts%20%E2%80%94%20Top-50%20rescaled%20weights%20using%2050-delta%20ATM%20Black-Scholes%20volatilities%7CFull-500%20ATM%20Correl%3A%3A24.1%20Pts%20%28%2B2.3%20pts%29%20%E2%80%94%20Restores%20stocks%20%2351%E2%80%93%23500%2C%20shrinking%20the%20%E2%88%91%20w_i%C2%B2%CF%83_i%C2%B2%20deduction%7CTop-50%20Var-Swap%20Correl%3A%3A29.6%20Pts%20%28%2B7.8%20pts%29%20%E2%80%94%20Replaces%2050d%20ATM%20IV%20with%20full%201%2FK%C2%B2%20log-strip%20variance%20strikes%7CFull-500%20Var-Swap%20Correl%3A%3A31.9%20Pts%20%28%2B10.1%20pts%29%20%E2%80%94%20Institutional%20OTC%20Dispersion%20Swap%20fair-value%20benchmark!&amp;metrics=ATM%20vs%20VAR%20WEDGE%3A%3A%2B7.8%20to%20%2B10.1%20Pts%3A%3ADriven%20by%20Steep%20SPX%20Skew%7CEARNINGS%20CONTANGO%3A%3ACOR3M%20%3E%20COR1M%3A%3AIdiosyncratic%20Jump%20Signal%7CMACRO%20BACKWARDATION%3A%3ACOR1M%20%3E%20COR3M%3A%3ASystemic%20Shock%20Warning%7CDATA%20GOVERNANCE%3A%3ACboe%20Global%20Indices%3A%3ASEC%20%2F%20IOSCO%20Compliant</image:loc>
      <image:title>Comparison of ATM COR1M versus Variance-Swap Implied Correlation and Full-500 True Correlation across four volatility regimes</image:title>
      <image:caption>Cboe COR1M &amp; COR3M Implied Correlation Indices: Top-50 SPX Math &amp; Signals — Comparison of ATM COR1M versus Variance-Swap Implied Correlation and Full-500 True Correlation across four volatility regimes (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vega-neutral-vs-theta-neutral-variance-dispersion-sizing</loc>
    <lastmod>2026-11-14T19:47:16.780Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vega-neutral-vs-theta-neutral-variance-dispersion-sizing-hero-2026.png</image:loc>
      <image:title>Vega-Neutral vs Theta-Neutral vs Variance-Neutral Dispersion Leg Sizing — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (Implied Correlation, Index Dispersion Baskets &amp; Earnings Vol Crush): Exact Vega-neutral, Theta-neutral, Dollar-Gamma-neutral, and √ρ-weighted dispersion leg formulas.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Four%20Institutional%20Dispersion%20Leg-Sizing%20Architectures%20Compared&amp;subtitle=Selecting%20the%20exact%20SPX-to-Basket%20Vega%20ratio%20%28V_I%20%2F%20%E2%88%91%20w_i%20V_i%29%20for%20your%20macro%20%26%20correlation%20regime&amp;steps=Theta-Neutral%20%28V_S%20%3D%200.5%20V_I%29%3A%3AZero%20daily%20time-decay%20bleed%20in%20dead%20summer%20markets%3B%20heavy%20short%20Vega%20%26%20short%20crash%20Gamma%7CVega-Neutral%20%28V_S%20%3D%201.0%20V_I%29%3A%3AZero%20sensitivity%20to%20equal%20%2B1v%20parallel%20vol%20shifts%3B%20still%20short%2050%25%20%24%CE%93%20because%20SPX%20moves%201v%20%3C%20Stock%20%2B2v!%7CPCA%20Beta-Vega%20%28V_S%20%E2%89%88%201.4%20V_I%29%3A%3AScales%20by%20empirical%20vol-beta%20%28%CE%94%CF%83_i%20%2F%20%CE%94%CF%83_I%20%E2%89%88%201.35%29%3B%20immunizes%20first-day%20VIX%20spike%20mark-to-market%7CGamma%2FVar-Neutral%20%28V_S%20%3D%202.0%20V_I%29%3A%3AEqualizes%20Variance%20Notional%20N_var%20%28%24%CE%93%20%3D%200%20at%20%CF%81%3D1%29%3B%20pure%20realized%20variance%20spread%20%2B%20long%20%2B%2450k%20Vega&amp;metrics=THETA-NEUTRAL%20RATIO%3A%3AV_S%20%2F%20V_I%20%3D%20%CF%83_I%2F%CF%83_S%3A%3A0.50x%20at%2014v%20vs%2028v%7CVEGA-NEUTRAL%20RATIO%3A%3AV_S%20%2F%20V_I%20%3D%201.00x%3A%3AEqual%20%24%2FVol%20Point%7CBETA-VEGA%20RATIO%3A%3AV_S%20%2F%20V_I%20%E2%89%88%201.35x%3A%3AEmpirical%20Vol-Beta%20Hedge%7CGAMMA-NEUTRAL%20RATIO%3A%3AV_S%20%2F%20V_I%20%3D%20%CF%83_S%2F%CF%83_I%3A%3A2.00x%20%3D%20Equal%20N_var!</image:loc>
      <image:title>Decision tree comparing four institutional dispersion leg-sizing schemes across Vega Gamma Theta and correlation P&amp;L</image:title>
      <image:caption>Vega-Neutral vs Theta-Neutral vs Variance-Neutral Dispersion Leg Sizing — Decision tree comparing four institutional dispersion leg-sizing schemes across Vega Gamma Theta and correlation P&amp;L (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Stress-Test%20P%26L%3A%20-6%25%20SPX%20Shock%20%28COR1M%20Jumps%2022%20%E2%86%92%2058%29%20Per%20%24100k%20Basket%20Vega&amp;subtitle=Demonstrating%20how%20Gamma-Neutral%20and%20%E2%88%9A%CF%81-Weighted%20books%20survive%20macro%20shocks%20that%20crush%20Theta-Neutral%20books&amp;steps=Theta-Neutral%20%28-%24200k%20SPX%29%3A%3A-%241%2C840%2C000%20Drawdown%20%E2%80%94%20Crushed%20by%203x%20short%20SPX%20%24%CE%93%20and%20%2B14v%20SPX%20implied%20vol%20explosion%7C1%201%20Vega-Neutral%20%28-%24100k%20SPX%29%3A%3A-%24610%2C000%20Drawdown%20%E2%80%94%20Short%20-%241.43M%20net%20%24%CE%93%20plus%20SPX%20vol%20rising%20faster%20than%20stock%20vol%7C%E2%88%9A%CF%81%20Beta-Weighted%20%28-%2470k%20SPX%29%3A%3A-%2495%2C000%20Flat%2FMild%20%E2%80%94%20Long%20%2B%2430k%20net%20Vega%20nearly%20offsets%20correlation%20jump%20mark-to-market%7CGamma%2FVar-Neutral%20%28-%2450k%20SPX%29%3A%3A%2B%24285%2C000%20PROFIT!%20%E2%80%94%20Zero%20net%20%24%CE%93%20loss%20%2B%20%2B%2450k%20long%20Vega%20profits%20from%20parallel%20vol%20expansion!&amp;metrics=LOW-VIX%20RULE%3A%3ANever%20Go%20%CE%98-Neutral!%3A%3AUse%20Gamma%2FVar-Neutral%7CHIGH-VIX%20RULE%3A%3AShift%20Toward%20Vega%2F%CE%98%3A%3AHarvest%20Vol%20%2B%20Corr%20Crush%7CCLEARING%20VENUE%3A%3ACboe%20%2B%20OCC%20STANS%3A%3AIntraday%20Margin%20Checks%7CREGULATORY%20MARGIN%3A%3AFINRA%20Rule%204210%3A%3APortfolio%20Margin%20Netting</image:loc>
      <image:title>Simulated 5-day mark-to-market P&amp;L across all four dispersion sizing schemes during a -6% S&amp;P 500 correlation spike</image:title>
      <image:caption>Vega-Neutral vs Theta-Neutral vs Variance-Neutral Dispersion Leg Sizing — Simulated 5-day mark-to-market P&amp;L across all four dispersion sizing schemes during a -6% S&amp;P 500 correlation spike (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/magnificent-seven-concentration-cor1m-compression-bias</loc>
    <lastmod>2026-11-14T19:46:33.225Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/magnificent-seven-concentration-cor1m-compression-bias-hero-2026.png</image:loc>
      <image:title>Mega-Cap Concentration (Top-7 SPX Weights) &amp; COR1M Compression Bias — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (Implied Correlation, Index Dispersion Baskets &amp; Earnings Vol Crush): Why Top-7 AI weight concentration &amp; two-block sector rotation push Cboe COR1M into single digits.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Two-Block%20SPX%20Variance%20Decomposition%3A%20AI%20Mega-Caps%20vs%20Rest-of-Index&amp;subtitle=Why%20a%20scalar%20equicorrelation%20index%20hides%20intense%20intra-tech%20correlation%20during%20factor%20rotations&amp;steps=Block%20M%20%28Top-7%20Mega-Caps%29%3A%3AWeight%20W_M%20%3D%2033%25%2C%20High%20Vol%20%CF%83_M%20%E2%89%88%2036%25%2C%20Strong%20Intra-Block%20AI%20Correlation%20%CF%81_MM%20%3D%20%2B0.62%7CBlock%20R%20%28Remaining%20493%29%3A%3AWeight%20W_R%20%3D%2067%25%2C%20Moderate%20Vol%20%CF%83_R%20%E2%89%88%2023%25%2C%20Normal%20Cyclical%20Correlation%20%CF%81_RR%20%3D%20%2B0.38%7CCross-Block%20Rotation%20%CF%81_MR%3A%3ACapital%20rotates%20OUT%20of%20defensives%20INTO%20AI%20winners%20%28or%20vice%20versa%29%3A%20%CF%81_MR%20%3D%20-0.08%20to%20%2B0.05!%7CScalar%20COR1M%20Illusion%3A%3A2%C3%97W_M%C3%97W_R%20%3D%2044.2%25%20of%20index%20cross-weight%20sits%20on%20%CF%81_MR%20%E2%89%88%200%2C%20dragging%20scalar%20COR1M%20to%209.5!&amp;metrics=INTRA-TECH%20%CF%81_MM%3A%3A%2B0.58%20to%20%2B0.72%3A%3AHigh%20Semiconductor%20Sync%7CCROSS-BLOCK%20%CF%81_MR%3A%3A-0.12%20to%20%2B0.08%3A%3AFactor%20Rotation%20Dampener%7CCROSS-PAIR%20WEIGHT%3A%3A44.2%25%20of%20Matrix%3A%3A2%20%C3%97%200.33%20%C3%97%200.67%20Share!%7CEQUAL-WT%20CHECK%3A%3ARSP%20vs%20SPX%20Vol%3A%3AIsolates%20Concentration</image:loc>
      <image:title>Two-block correlation matrix architecture separating Top-7 AI Mega-Caps from the remaining 493 S&amp;P 500 constituents</image:title>
      <image:caption>Mega-Cap Concentration (Top-7 SPX Weights) &amp; COR1M Compression Bias — Two-block correlation matrix architecture separating Top-7 AI Mega-Caps from the remaining 493 S&amp;P 500 constituents (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Raw%20COR1M%20Print%20vs%20HHI-Adjusted%20Implied%20Correlation%20Equivalent&amp;subtitle=Normalizing%202026%20single-digit%20COR1M%20readings%20back%20to%20a%20constant%202017%20H_%CF%83%20%3D%200.032%20baseline&amp;steps=Raw%202026%20COR1M%20Print%3A%3A11.0%20Pts%20%E2%80%94%20Appears%20at%202nd%20percentile%20of%2015-year%20unadjusted%20history%20%28false%20alarm!%29%7CHHI%20Concentration%20Add-Back%3A%3A%2B5.7%20Pts%20%E2%86%92%2016.7%20Pts%20%E2%80%94%20Removes%20the%20purely%20algebraic%20jump%20in%20H_%CF%83%20from%200.032%20to%200.094%7CSkew-Strip%20Var%20Add-Back%3A%3A%2B8.4%20Pts%20%E2%86%92%2025.1%20Pts%20%E2%80%94%20Adjusts%20from%2050d%20ATM%20COR1M%20to%20true%20OTC%20Variance-Swap%20correlation%7CRealized%2030d%20SPX%20Correl%3A%3A13.8%20Pts%20Realized%20%E2%80%94%20Leaving%20a%20healthy%20%2B11.3%20point%20true%20variance-correlation%20risk%20premium!&amp;metrics=RAW%20COR1M%20SIGNAL%3A%3A11.0%20%28Misleading%29%3A%3ADistorted%20by%20H_%CF%83%20%3D%200.094%7CTRUE%20VAR-CORR%3A%3A25.1%20Pts%20Implied%3A%3AFull%20Strip%20%2B%20Full%20500%7CREALIZED%20CORR%3A%3A13.8%20Pts%20Actual%3A%3A%2B11.3%20Pt%20Net%20Harvest!%7COPTIMAL%20HEDGE%3A%3A2-Block%20Sector%20RV%3A%3AXLK%2FXLF%2FXLV%20vs%20SPX</image:loc>
      <image:title>Comparison of raw COR1M historical percentile versus HHI-adjusted correlation z-score across 2018 2021 2024 and 2026</image:title>
      <image:caption>Mega-Cap Concentration (Top-7 SPX Weights) &amp; COR1M Compression Bias — Comparison of raw COR1M historical percentile versus HHI-adjusted correlation z-score across 2018 2021 2024 and 2026 (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/pre-earnings-implied-jump-variance-extraction-sigma-earn</loc>
    <lastmod>2026-11-14T19:55:14.026Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/pre-earnings-implied-jump-variance-extraction-sigma-earn-hero-2026.png</image:loc>
      <image:title>Pre-Earnings Implied Jump Extraction (σ_earn): Stripping Event Variance — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (Implied Correlation, Index Dispersion Baskets &amp; Earnings Vol Crush): Two-tenor additive total-variance stripping for single-stock earnings jumps and index aggregation.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Pre-Earnings%20Implied%20Jump%20Extraction%20%26%20Dispersion%20Screening%20Pipeline&amp;subtitle=Isolating%20pure%20announcement%20jump%20risk%20from%20continuous%20macro%20beta%20across%20top-50%20constituents&amp;steps=1.%20Effective%20Business%20Clock%3A%3ACount%20effective%20trading%20sessions%20D_1%2C%20D_2%20to%20Friday%20%26%20%2B2wk%20expiries%3B%20strip%20FOMC%20macro%20weights%7C2.%20Forward%20Variance%20Strip%3A%3ACompute%20v_diff%20%3D%20%5BW%28D_2%29%20-%20W%28D_1%29%5D%20%2F%20%28D_2%20-%20D_1%29%20and%20isolate%20pure%20jump%20%CF%83_earn%C2%B2%20%3D%20W%28D_1%29%20-%20D_1%C2%B7v_diff%7C3.%2012-Quarter%20Realized%20Audit%3A%3ACompare%20E%5B%20Jump%20%5D%20%3D%200.798%C2%B7%CF%83_earn%20against%2012-quarter%20mean%20%26%20root-mean-square%20earnings%20moves%7C4.%20Basket%20Weight%20Tilt%3A%3AOverweight%20stocks%20where%20%CF%83_earn%20%3C%20historical%20RMS%20jump%3B%20underweight%20frothy%20retail%20earnings%20lotto%20names!&amp;metrics=NVDA%20IMPLIED%201%CF%83%3A%3A%C2%B19.46%25%20StdDev%3A%3A%C2%B17.54%25%20Mean%20Abs%20Move%7CEX-EARNINGS%20VOL%3A%3A33.77%25%20Annual%3A%3ATarget%20Friday%20Crush%20IV!%7CRETAIL%20LOTTO%20TRAP%3A%3A%CF%83_earn%20%3E%201.35x%20Hist%3A%3AAvoid%20Overpaying%20Vega!%7CPOST-PRINT%20STRATEGY%3A%3APEAD%20Calendars%3A%3AShort%20Wk1%20%2F%20Long%20Mth2</image:loc>
      <image:title>Four-step quantitative workflow to extract single-stock sigma_earn and score historical earnings dispersion value</image:title>
      <image:caption>Pre-Earnings Implied Jump Extraction (σ_earn): Stripping Event Variance — Four-step quantitative workflow to extract single-stock sigma_earn and score historical earnings dispersion value (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Implied%20Volatility%20Term-Structure%20Kink%20Ahead%20of%20a%20%C2%B19.46%25%20Earnings%20Print&amp;subtitle=How%20one%20fixed%20%CF%83_earn%C2%B2%20%3D%200.00894%20jump%20inflates%20annualized%20IV%20across%201-day%20to%2090-day%20expiries&amp;steps=1-Day%20Expiry%20%28Thu%20%E2%86%92%20Fri%29%3A%3A154.2%25%20Annualized%20IV!%20%E2%80%94%2095.2%25%20of%20total%20option%20variance%20comes%20purely%20from%20tonight%E2%80%99s%20jump%7C4.5-Day%20Weekly%20Expiry%3A%3A78.4%25%20Annualized%20IV%20%E2%80%94%2081.5%25%20jump%20variance%20%2B%2018.5%25%20continuous%20daily%20diffusion%7C21-Day%20Monthly%20Expiry%3A%3A48.1%25%20Annualized%20IV%20%E2%80%94%20Jump%20diluted%20over%2021%20sessions%3B%2043%25%20jump%20%2B%2057%25%20diffusion%7C63-Day%20Quarterly%20Expiry%3A%3A38.7%25%20Annualized%20IV%20%E2%80%94%20Approaching%2033.8%25%20ex-earnings%20baseline%3B%20ideal%20calendar%20anchor&amp;metrics=1-DAY%20JUMP%20SHARE%3A%3A95.2%25%20of%20Total%20Var%3A%3APure%20Binary%20Event%20Risk%7CTHURSDAY%20AMC%20CRUSH%3A%3A78.4%25%20%E2%86%92%2033.8%25%20IV%3A%3A-44.6%20Vol%20Point%20Drop!%7CSYMPATHY%20CORREL%3A%3AAMD%20%2F%20TSM%20%2F%20MU%3A%3AAccount%20for%20Sector%20Read-Thru%7CNEXT%20DESK%20STEP%3A%3APEAD%20Calendars%3A%3AHarvest%20Post-Print%20Drift</image:loc>
      <image:title>Term-structure volatility decay from 4.5-day weekly expiry out to 90-day quarterly expiry ahead of a ±9.46% earnings jump</image:title>
      <image:caption>Pre-Earnings Implied Jump Extraction (σ_earn): Stripping Event Variance — Term-structure volatility decay from 4.5-day weekly expiry out to 90-day quarterly expiry ahead of a ±9.46% earnings jump (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/macro-liquidation-correlation-spike-dispersion-drawdowns</loc>
    <lastmod>2026-11-14T19:47:17.749Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/macro-liquidation-correlation-spike-dispersion-drawdowns-hero-2026.png</image:loc>
      <image:title>Correlation-Spike Tail Risk: Why Dispersion Books Bleed in Macro Panics — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (Implied Correlation, Index Dispersion Baskets &amp; Earnings Vol Crush): Anatomy of March 2020 &amp; August 5, 2024 dispersion drawdowns, GTH vs OPRA hours gap, and VIX tail hedges.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Anatomy%20of%20the%20August%205%2C%202024%20Pre-Market%20Dispersion%20Margin%20Squeeze&amp;subtitle=How%20asynchronous%20trading%20hours%20between%20Cboe%2024x5%20SPX%2FVIX%20and%2009%3A30%20ET%20OPRA%20single%20stocks%20amplify%20risk&amp;steps=03%2000%20ET%20Tokyo%20Unwind%3A%3ATopix%20plunges%20-12%25%3B%20ES%20futures%20drop%20-4.2%25%3B%20Cboe%20GTH%20SPX%20puts%20%26%20VIX%20futures%20gap%20vertically%7C08%2035%20ET%20VIX%20Prints%2065.7%3A%3AShort%20SPX%20straddles%2Fvariance%20marked%20at%2048%25%E2%80%9365%25%20IV%20while%20OPRA%20single-stock%20options%20sit%20CLOSED!%7C09%2000%20ET%20Margin%20Snapshot%3A%3AOCC%20STANS%20%26%20prime-broker%20intraday%20engines%20see%20unhedged%20GTH%20SPX%20mark%20surge%3B%20issue%20cash%20calls%7C09%2030%20ET%20Wide%20OPRA%20Open%3A%3AForced%20pod%20liquidations%20buy%20back%20SPX%20at%20top%20tick%20%26%20dump%20wide-spread%20single-stock%20calls%20at%20bid!&amp;metrics=AUG%205%20PEAK%20VIX%3A%3A65.73%20Pre-Open%3A%3AClosed%20Day%20Down%20at%2038.57!%7CHOURS%20MISMATCH%3A%3AGTH%20vs%2009%3A30%20OPRA%3A%3AAsynchronous%20Mark%20Trap%7CFORCED%20STOP%20LOSS%3A%3A-12%25%20to%20-22%25%20NAV%3A%3AUnhedged%201%3A1%20Vega%20Pods%7CSURVIVOR%20PLAYBOOK%3A%3ANever%20Stop%20at%2009%3A31%3A%3AHold%20VIX%20Wing%20%2B%20Cash%20Buffer</image:loc>
      <image:title>Four-stage cascade of an institutional dispersion liquidation shock from pre-market GTH VIX spike to OPRA open</image:title>
      <image:caption>Correlation-Spike Tail Risk: Why Dispersion Books Bleed in Macro Panics — Four-stage cascade of an institutional dispersion liquidation shock from pre-market GTH VIX spike to OPRA open (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Historical%20S%26P%20500%20Realized%20Pairwise%20Correlation%20Spikes%20in%20Crisis%20Windows&amp;subtitle=Every%20short-correlation%20dispersion%20model%20must%20survive%20instantaneous%20jumps%20to%20%CF%81%20%3D%200.80%E2%80%930.90&amp;steps=Oct%202008%20Global%20GFC%3A%3A87.4%25%20Realized%2021d%20Correlation%20%E2%80%94%20Systemic%20banking%20%26%20credit%20deleveraging%20across%20all%2011%20sectors%7CAug%202011%20US%20Debt%20Downgrade%3A%3A89.1%25%20Realized%2021d%20Correlation%20%E2%80%94%20Macro%20ETF%20liquidation%20drove%20highest%201-month%20sync%20on%20record!%7CMar%202020%20COVID%20Lockdown%3A%3A85.6%25%20Realized%2021d%20Correlation%20%E2%80%94%20Limit-down%20circuit%20breakers%20synchronized%2098%25%20of%20SPX%20names%7CAug%205%202024%20Carry%20Unwind%3A%3A76.2%25%20Intraday%205-Day%20Spike%20%E2%80%94%20Reverted%20back%20below%2024%25%20within%2012%20sessions%20%28V-shaped%20harvest!%29&amp;metrics=RECORD%20REALIZED%20%CF%81%3A%3A89.1%25%20%28Aug%202011%29%3A%3ANear-Total%20Lockstep!%7CMEAN%20REVERSION%20HALF-LIFE%3A%3A9%20to%2018%20Sessions%3A%3AFast%20Post-Spike%20Decay%7CCAP%20ASYMMETRY%20RULE%3A%3ANever%20Short%20Uncapped%3A%3AAgainst%20Capped%20Stocks!%7CREGULATORY%20OVERSIGHT%3A%3ASEC%20%2F%20CFTC%20%2F%20OCC%3A%3ASystemic%20Stress%20Rules</image:loc>
      <image:title>Historical peak 1-month realized S&amp;P 500 pairwise correlation spikes across major market crises from 2008 to 2024</image:title>
      <image:caption>Correlation-Spike Tail Risk: Why Dispersion Books Bleed in Macro Panics — Historical peak 1-month realized S&amp;P 500 pairwise correlation spikes across major market crises from 2008 to 2024 (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/proxy-25-stock-basket-tracking-error-spx-dispersion</loc>
    <lastmod>2026-11-14T19:48:29.756Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/proxy-25-stock-basket-tracking-error-spx-dispersion-hero-2026.png</image:loc>
      <image:title>Optimal 25-Stock Proxy Baskets vs Full 500-Stock S&amp;P 500 Dispersion — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (Implied Correlation, Index Dispersion Baskets &amp; Earnings Vol Crush): Minimizing OPRA spread drag and GICS sector basis with 30-stock Mixed-Integer QP proxy baskets.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Institutional%2032-Stock%20MIQP%20Dispersion%20Proxy%20Basket%20Engine&amp;subtitle=Filtering%20500%20SPX%20constituents%20down%20to%2032%20penny-tick%20names%20with%2098.9%25%20SPX%20variance%20fidelity&amp;steps=1.%20Liquidity%20Universe%20Gate%3A%3AFilter%20SPX%20to%20~95%20OPRA%20Penny-Pilot%20names%20with%20%3E%2415M%20daily%20option%20vega%20%26%20%3C1.2v%20ATM%20bid-ask%7C2.%20Factor%20Covariance%20Fit%3A%3AEstimate%20Ledoit-Wolf%20shrunk%2095%C3%9795%20covariance%20%2B%20PCA%20loadings%20%28Market%2C%20Rate%2C%20AI%2C%20Oil%2C%20Credit%29%7C3.%20Sector-Constrained%20MIQP%3A%3ASelect%20M%20%3D%2032%20stocks%20minimizing%20%CF%84%C2%B2%28w%CC%83%29%20%2B%20%CE%BB%C2%B7Cost%20subject%20to%20%C2%B11.5%25%20GICS%20sector%20weight%20bounds%7C4.%20FINRA%204210%20TIMS%20Check%3A%3AVerify%20OCC%20broad-based%20index%20basket%20offset%20%28%3E20%20stocks%20%2F%20cap%20rules%29%20for%20maximum%20margin%20relief!&amp;metrics=CANDIDATE%20POOL%3A%3A~95%20Penny%20Names%3A%3ATight%20Automated%20Quoting%7COPTIMAL%20CARDINALITY%3A%3AM%20%3D%2030%E2%80%9335%20Names%3A%3AKnee%20of%20Cost-Error%20Curve%7CGICS%20TOLERANCE%3A%3A%C2%B11.5%25%20Per%20Sector%3A%3AEliminates%20SVB-Style%20Basis%7CTIMS%20BASKET%20MINIMUM%3A%3A%E2%89%A5%2020%E2%80%9325%20Constituents%3A%3AUnlocks%20Index%20Offset!</image:loc>
      <image:title>Four-step Mixed-Integer Quadratic Programming pipeline for building a 32-stock S&amp;P 500 dispersion proxy basket</image:title>
      <image:caption>Optimal 25-Stock Proxy Baskets vs Full 500-Stock S&amp;P 500 Dispersion — Four-step Mixed-Integer Quadratic Programming pipeline for building a 32-stock S&amp;P 500 dispersion proxy basket (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Net%20Retained%20Dispersion%20Alpha%20vs%20Constituent%20Count%20%28M%20%3D%2010%20to%20500%29&amp;subtitle=Why%20M%20%3D%2030%E2%80%9335%20Stratified%20MIQP%20maximizes%20risk-adjusted%20Sharpe%20ratio%20on%20institutional%20pods&amp;steps=M%20%3D%2010%20Mega-Cap%20Only%3A%3ASharpe%200.92%20%E2%80%94%20Low%20execution%20cost%2C%20but%20noisy%20sector%20rotation%20%26%20punitive%20house%20margin%7CM%20%3D%2025%20Naive%20Cap%20Rank%3A%3ASharpe%201.48%20%E2%80%94%20Good%20liquidity%2C%20vulnerable%20to%20mid-cap%20sector%20shocks%20%28e.g.%20Mar%202023%20banks%29%7CM%20%3D%2032%20Stratified%20MIQP%3A%3ASharpe%202.14%20%28OPTIMAL!%29%20%E2%80%94%20Captures%2099%25%20variance%20fidelity%20at%20%3C1.0v%20OPRA%20execution%20cost%7CM%20%3D%20250%2B%20Deep%20Tail%3A%3ASharpe%200.65%20%E2%80%94%20Wide%20OPRA%20bid-ask%20spreads%20%26%20odd-lot%20delta%20hedging%20devour%20correlation%20carry&amp;metrics=OPTIMAL%20SHARPE%3A%3A2.14%20%2832-Stock%20MIQP%29%3A%3AGlobal%20Cost-Variance%20Optimum%7CREBALANCE%20CADENCE%3A%3AMonthly%20%2F%20Quarterly%3A%3AAligned%20With%20OPEX%20Rolls%7CPRIMARY%20VENUES%3A%3ACboe%20%2B%2018%20OPRA%3A%3APenny-Pilot%20Complex%20Books%7CNEXT%20COST%20LAYER%3A%3ADelta-Hedge%20Drag%3A%3AWhalley-Wilmott%20Bands</image:loc>
      <image:title>Total net dispersion alpha retained after subtracting both OPRA execution drag and subset tracking-error penalty across basket sizes</image:title>
      <image:caption>Optimal 25-Stock Proxy Baskets vs Full 500-Stock S&amp;P 500 Dispersion — Total net dispersion alpha retained after subtracting both OPRA execution drag and subset tracking-error penalty across basket sizes (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/single-stock-bid-ask-spread-delta-hedging-drag-dispersion</loc>
    <lastmod>2026-11-14T19:49:45.792Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/single-stock-bid-ask-spread-delta-hedging-drag-dispersion-hero-2026.png</image:loc>
      <image:title>Execution Microstructure Drag: OPRA Bid-Ask Spreads &amp; Delta-Hedging Slippage — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (Implied Correlation, Index Dispersion Baskets &amp; Earnings Vol Crush): Leland hedging friction, Whalley-Wilmott cubic delta bands, and OPRA AIM/COB straddle execution.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
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      <image:title>Four-stage institutional dispersion execution and Whalley-Wilmott delta-rehedging workflow across OPRA and cash equities</image:title>
      <image:caption>Execution Microstructure Drag: OPRA Bid-Ask Spreads &amp; Delta-Hedging Slippage — Four-stage institutional dispersion execution and Whalley-Wilmott delta-rehedging workflow across OPRA and cash equities (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Cash-Equity%20Delta-Hedging%20Slippage%20vs%20Rebalancing%20Rule%20%2863-Day%20Straddle%29&amp;subtitle=Demonstrating%20the%20classic%20bias-variance%20trade-off%20between%20hedging%20too%20often%20and%20hedging%20too%20rarely&amp;steps=Every%205%20Minutes%20%2878x%2FDay%29%3A%3A-1.82v%20Slippage%20%2F%20%C2%B10.3v%20Noise%20%E2%80%94%20Pure%20brokerage%20%26%20HFT%20spread%20donation!%7CEvery%201%20Hour%20%286.5x%2FDay%29%3A%3A-0.96v%20Slippage%20%2F%20%C2%B10.7v%20Noise%20%E2%80%94%20Still%20bleeds%20heavy%20Leland%20%E2%88%9A%281%2F%CE%94t%29%20friction%7CFixed%20Daily%2016%2000%20MOC%20Only%3A%3A-0.21v%20Slippage%20%2F%20%C2%B12.4v%20Path%20Noise%20%E2%80%94%20Cheap%20execution%2C%20misses%20big%20intraday%20reversals%7CWhalley-Wilmott%20%2B%20MOC%20Hybrid%3A%3A-0.24v%20Slippage%20%2F%20%C2%B10.9v%20Noise%20%E2%80%94%20Captures%20big%20intraday%20swings%20without%20noisy%20churn!&amp;metrics=LELAND%20SCALING%20LAW%3A%3ACost%20%E2%88%9D%201%20%2F%20%E2%88%9A%CE%94t%3A%3A4x%20Faster%20%3D%202x%20Cost!%7CWW%20BAND%20EXPONENT%3A%3A%E2%88%9D%20%28k%20%C2%B7%20S%20%C2%B7%20%CE%93%C2%B2%29%5E%281%2F3%29%3A%3ATightens%20Near%20Pin%20%CE%93!%7CREGULATORY%20VENUE%3A%3ASEC%20Rule%2015c3-5%3A%3AMarket-Access%20Controls%7COTC%20ALTERNATIVE%3A%3AClean%20Corr%20Swaps%3A%3AZero%20Path%20Drift</image:loc>
      <image:title>Comparison of realized volatility lost to cash-equity delta hedging across five rehedging frequencies from 5 minutes to Whalley-Wilmott bands</image:title>
      <image:caption>Execution Microstructure Drag: OPRA Bid-Ask Spreads &amp; Delta-Hedging Slippage — Comparison of realized volatility lost to cash-equity delta hedging across five rehedging frequencies from 5 minutes to Whalley-Wilmott bands (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/implied-correlation-skew-downside-put-vs-upside-call</loc>
    <lastmod>2026-11-14T19:47:13.666Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/implied-correlation-skew-downside-put-vs-upside-call-hero-2026.png</image:loc>
      <image:title>Implied Correlation Skew: Why 90% Put Correlation Beats 110% Calls by 25+ Pts — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (Implied Correlation, Index Dispersion Baskets &amp; Earnings Vol Crush): Delta-matched put vs call implied correlation skew, SPX skew origins, and Reverse Call Dispersion.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Supply-Demand%20Anatomy%20of%20the%20S%26P%20500%20Implied%20Correlation%20Skew&amp;subtitle=Why%20index%20hedgers%20and%20covered-call%20ETFs%20twist%20implied%20correlation%20by%2040%2B%20points%20across%20moneyness&amp;steps=10d%E2%80%9325d%20Put%20Wing%20%28%CF%81%20%3D%2032%25%E2%80%9350%25%29%3A%3APensions%20%26%20macro%20pods%20buy%20SPX%20crash%20puts%20while%20ignoring%20single-stock%20puts%3B%20%CF%81_imp%20trades%20rich!%7C50d%20ATM%20Center%20%28%CF%81%20%3D%2018%25%E2%80%9324%25%29%3A%3ATwo-way%20market-maker%20straddle%20%26%20COR1M%20benchmark%20zone%3B%20moderate%20%2B7%20pt%20correlation%20VRP%7C25d%20Call%20Wing%20%28%CF%81%20%3D%206%25%E2%80%9311%25%29%3A%3AJEPI%2FXYLD%2FJPM%20Collar%20crush%20SPX%20calls%20to%2010.6v%20while%20retail%20bids%20NVDA%2FTSLA%20calls%20to%2045v!%7CDesk%20Wing%20Split%20Execution%3A%3ASell%20Put%20Dispersion%20%28with%2010d%20cap%29%20on%20downside%20%2B%20BUY%20Reverse%20Call%20Dispersion%20on%20upside!&amp;metrics=10d%20PUT%20CORREL%3A%3A49.4%25%20Implied%3A%3APeak%20Systemic%20Fear%20Premium%7C25d%20CALL%20CORREL%3A%3A7.9%25%20Implied!%3A%3ABelow%20Long-Run%20Realized%20Up-%CF%81!%7CSKEW%20MULTIPLIER%3A%3A6.2x%20Put%20vs%20Call%20%CF%81%3A%3AAcross%20Single%2090d%20Chain%7CUPSIDE%20SQUEEZE%20REAL%20%CF%81%3A%3A28%25%E2%80%9344%25%20Realized%3A%3ADuring%20Fed%20%2F%20CPI%20Rallies!</image:loc>
      <image:title>Microstructure supply-demand forces creating 49% implied correlation on 10d puts versus 7.9% implied correlation on 25d calls</image:title>
      <image:caption>Implied Correlation Skew: Why 90% Put Correlation Beats 110% Calls by 25+ Pts — Microstructure supply-demand forces creating 49% implied correlation on 10d puts versus 7.9% implied correlation on 25d calls (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Implied%20vs%20Conditional%20Realized%20Correlation%20Across%20SPX%20Moneyness%20Pillars&amp;subtitle=Revealing%20why%2025d%20Put-Spread%20Dispersion%20and%20Reverse%2025d%20Call%20Dispersion%20beat%20naive%20ATM%20straddles&amp;steps=10-Delta%20Crash%20Put%3A%3AImplied%2051%25%20vs%20Crisis%20Realized%2084%25%20%E2%80%94%20Negative%20edge%20if%20crash%20hits%3B%20BUY%20as%20cheap%20tail%20cap!%7C25-Delta%20Moderate%20Put%3A%3AImplied%2033%25%20vs%20Pullback%20Realized%2021%25%20%E2%80%94%20Fattest%20%2B12%20pt%20correlation%20risk%20premium!%7C50-Delta%20ATM%20Center%3A%3AImplied%2020%25%20vs%20Calm%20Realized%2014%25%20%E2%80%94%20Steady%20%2B6%20pt%20baseline%20dispersion%20harvest%7C25-Delta%20Upside%20Call%3A%3AImplied%208%25%20vs%20Rally%20Realized%2029%25%20%E2%80%94%20%2B21%20pt%20edge%20GOING%20LONG%20CORRELATION%20%28Long%20SPX%20Call%29!&amp;metrics=BEST%20SHORT-CORR%20ZONE%3A%3A25d%E2%80%9340d%20Put%20Spread%3A%3ACapped%20Below%2010d%20Put%7CBEST%20LONG-CORR%20ZONE%3A%3A20d%E2%80%9330d%20Upside%20Call%3A%3AReverse%20Call%20Dispersion!%7CSINGLE-STOCK%20CAP%3A%3AAvoid%20High%20Short-Int%3A%3ASkip%20Meme%20Call%20Squeezes%7CCLEARING%20%26%20MARGIN%3A%3AFINRA%20Rule%204210%20PM%3A%3AFull%20TIMS%20Wing%20Netting</image:loc>
      <image:title>Implied correlation vs realized conditional correlation across five delta pillars from 10d Put to 10d Call</image:title>
      <image:caption>Implied Correlation Skew: Why 90% Put Correlation Beats 110% Calls by 25+ Pts — Implied correlation vs realized conditional correlation across five delta pillars from 10d Put to 10d Call (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/otc-correlation-swaps-vs-option-strip-dirty-dispersion</loc>
    <lastmod>2026-11-14T19:46:37.601Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/otc-correlation-swaps-vs-option-strip-dirty-dispersion-hero-2026.png</image:loc>
      <image:title>OTC Clean Correlation Swaps vs Option-Strip &quot;Dirty&quot; Dispersion Mechanics — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (Implied Correlation, Index Dispersion Baskets &amp; Earnings Vol Crush): Path-dependent straddle Gamma drift, Variance-Swap dispersion, and OTC Clean Correlation Swaps.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=How%20%22Dirty%22%20Fixed-Strike%20Straddle%20Dispersion%20Loses%20Despite%20Low%20Correlation&amp;subtitle=Tracing%20Dollar%20Gamma%20%28%24%CE%93%29%20divergence%20across%20Month%201%20stock%20dispersion%20and%20Month%203%20SPX%20pin%20chop&amp;steps=Day%200%20Entry%20%28Balanced%20%24%CE%93%29%3A%3A32%20ATM%20stock%20straddles%20%2B%20short%20ATM%20SPX%20straddle%20initialized%20at%20equal%20%241.43M%20Dollar%20Gamma%7CMonth%201%20Idiosyncratic%20Trends%3A%3AHalf%20of%20stocks%20rally%20%2B18%25%2C%20half%20drop%20-18%25%3B%20SPX%20stays%20at%20%2B0.4%25!%20Month%201%20nets%20nice%20Gamma%20profit%7CMonth%202%20Strike%20Drift%20Decay%3A%3AStocks%20now%20sit%2018%25%20OTM%2FITM%E2%80%94basket%20%24%CE%93%20collapses%20by%20-68%25%20%28%241.43M%20%E2%86%92%20%240.46M%29!%7CMonth%203%20SPX%20ATM%20Pin%20Chop%3A%3ASPX%20sits%20right%20on%20K_0%20with%20massive%201%2F%E2%88%9A%28T-t%29%20Pin%20Gamma%20%28%243.9M!%29%E2%80%943%20days%20of%20%C2%B11.4%25%20SPX%20chop%20wipe%20out%20Month%201!&amp;metrics=BASKET%20%24%CE%93%20DECAY%3A%3A-68%25%20After%20%C2%B118%25%20Move%3A%3AStocks%20Leave%20Bell%20Curve!%7CSPX%20PIN%20%24%CE%93%20SURGE%3A%3A%2B170%25%20Final%2015%20Days%3A%3AIndex%20Trapped%20Near%20K_0!%7CRE-STRIKE%20TRIGGER%3A%3A%CE%94_stock%20%20%3E%200.75%20%2F%20%3C0.25%3A%3AMandatory%20Straddle%20Roll!%7CCOVARIANCE%20BIAS%3A%3ACov%28%CF%81%2C%20%CF%83%C2%B2%29%20%3E%200%3A%3A%CF%81_Var%20%3E%20K_Clean%20by%20~4.5%20Pts</image:loc>
      <image:title>Mechanism of Dirty Straddle Dispersion Gamma Decay when constituent stocks diverge early and SPX whipsaws late</image:title>
      <image:caption>OTC Clean Correlation Swaps vs Option-Strip &quot;Dirty&quot; Dispersion Mechanics — Mechanism of Dirty Straddle Dispersion Gamma Decay when constituent stocks diverge early and SPX whipsaws late (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Same-Day%20Fair%20Quote%20Ladder%20Across%20Four%20Correlation%20Definitions%20%2890d%20SPX%29&amp;subtitle=Never%20confuse%20an%20OTC%20Clean%20Correlation%20Swap%20quote%20with%20a%20Variance-Dispersion%20implied%20correlation!&amp;steps=Cboe%20COR3M%20%28ATM%20Top-50%29%3A%3A22.4%20Pts%20%E2%80%94%2050-delta%20ATM%20volatilities%20on%20rescaled%20top-50%20constituents%7COTC%20Clean%20Correlation%20Swap%3A%3A25.8%20Pts%20%E2%80%94%20E%5EQ%5B%CF%81_real%5D%20across%20basket%3B%20adds%20skew%20probability%20but%20strips%20Cov%28%CF%81%2C%20%CF%83%C2%B2%29!%7C5-Strike%20Listed%20Mini-Strip%20%CF%81%3A%3A29.7%20Pts%20%E2%80%94%20Captures%2088%25%20of%20SPX%201%2FK%C2%B2%20put-wing%20variance%20wedge%20on%20listed%20exchanges%7COTC%20Full%20Variance-Swap%20%CF%81%3A%3A31.4%20Pts%20%E2%80%94%20Highest%20strike%20due%20to%20full%20SPX%20tail%20strip%20%2B%20positive%20Cov%28%CF%81%2C%20%CF%83%CC%84%C2%B2%29!&amp;metrics=CLEAN%20SWAP%20ADVANTAGE%3A%3ALinear%20in%20%CF%81%20Only!%3A%3ACapped%20Crash%20Multiplier%7CVAR-DISP%20ADVANTAGE%3A%3A%2B5.6%20Pt%20Higher%20Strike%3A%3ACollects%20Cov%28%CF%81%2C%20%CF%83%C2%B2%29%20RP!%7CEXIT%20TIMING%20RULE%3A%3ARoll%20at%2012%E2%80%9314%20DTE%3A%3AAvoids%20SPX%20Pin%20Gamma%7CNEXT%20HIERARCHY%20STEP%3A%3ASector%20ETF%20Tiers%3A%3AXLK%20%2F%20XLF%20%2F%20XLE%20Legs</image:loc>
      <image:title>Fair strike comparison across ATM COR3M Clean Correlation Swap and OTC Variance-Swap Implied Correlation on the same afternoon</image:title>
      <image:caption>OTC Clean Correlation Swaps vs Option-Strip &quot;Dirty&quot; Dispersion Mechanics — Fair strike comparison across ATM COR3M Clean Correlation Swap and OTC Variance-Swap Implied Correlation on the same afternoon (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/sector-etf-xlk-xlf-xle-hierarchical-dispersion-baskets</loc>
    <lastmod>2026-11-14T19:46:35.937Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/sector-etf-xlk-xlf-xle-hierarchical-dispersion-baskets-hero-2026.png</image:loc>
      <image:title>Two-Tier Sector Dispersion: SPX vs Sector ETFs (XLK, XLF, XLE, XLV) vs Stocks — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (Implied Correlation, Index Dispersion Baskets &amp; Earnings Vol Crush): Separating Inter-Sector Macro Rotation (SPX vs XLK/XLF/XLE) from Intra-Sector Single-Stock Alpha.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Two-Tier%20Hierarchical%20S%26P%20500%20Dispersion%20Architecture&amp;subtitle=Choosing%20whether%20to%20harvest%20Inter-Sector%20Macro%20Rotation%2C%20Intra-Sector%20Stock%20Alpha%2C%20or%20the%20Difference&amp;steps=Apex%20Index%20%28SPX%20%2F%20ES%29%3A%3AS%26P%20500%20European%20cash-settled%20index%20options%20%28%CF%83_SPX%20%E2%89%88%2013.8%25%29%3B%20carries%20peak%20macro%20hedge%20bid%7CTier%201%20%2811%20Sector%20SPDRs%29%3A%3AXLK%20%2831%25%29%2C%20XLF%20%2813%25%29%2C%20XLV%20%2811%25%29%2C%20XLY%20%2810%25%29%2C%20XLC%20%289%25%29%2C%20XLI%20%288%25%29%2C%20XLP%2C%20XLE%2C%20XLU%2C%20XLRE%2C%20XLB%7CTier%202%20%28Intra-Sector%20Stocks%29%3A%3ABuy%20idiosyncratic%20stock%20vol%20%28e.g.%2C%20LLY%2C%20UNH%2C%20ABBV%2C%20MRK%20vs%20Short%20XLV%29%20where%20FDA%2Fearnings%20dominate!%7CLong-Short%20Sector%20Choice%3A%3ALong%20Tier-2%20XLV%20Dispersion%20%2B%20Short%20Tier-2%20XLE%20Dispersion%20%28buy%20oil%20corr%20at%200.65%2C%20realize%200.84!%29&amp;metrics=TIER-1%20TICKER%20COUNT%3A%3A12%20Chains%20Total%3A%3ASPX%20%2B%2011%20Liquid%20SPDRs%7CTIER-1%20OPRA%20DRAG%3A%3A%3C%200.45%20Vol%20Pts%3A%3APenny-Wide%20ETF%20Markets%7CBEST%20LONG%20INTRA-DISP%3A%3AXLV%20%26%20XLY%20Stocks%3A%3ALow%20Intra-Sector%20%CF%81%20%280.28%29%7CBEST%20REVERSE%20INTRA%3A%3AXLE%20%26%20XLU%20Stocks%3A%3AHigh%20Commodity%2FRate%20Sync!</image:loc>
      <image:title>Hierarchical two-tier dispersion tree splitting S&amp;P 500 variance into 11 Sector ETFs and Intra-Sector constituent stocks</image:title>
      <image:caption>Two-Tier Sector Dispersion: SPX vs Sector ETFs (XLK, XLF, XLE, XLV) vs Stocks — Hierarchical two-tier dispersion tree splitting S&amp;P 500 variance into 11 Sector ETFs and Intra-Sector constituent stocks (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
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      <image:title>Realized 63-day intra-sector pairwise correlation across five major Select Sector SPDR ETFs from XLV to XLE</image:title>
      <image:caption>Two-Tier Sector Dispersion: SPX vs Sector ETFs (XLK, XLF, XLE, XLV) vs Stocks — Realized 63-day intra-sector pairwise correlation across five major Select Sector SPDR ETFs from XLV to XLE (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/post-earnings-announcement-drift-pead-calendar-vol-crush</loc>
    <lastmod>2026-11-15T04:13:02.405Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/post-earnings-announcement-drift-pead-calendar-vol-crush-hero-2026.png</image:loc>
      <image:title>Post-Earnings Volatility Crush &amp; PEAD Calendar / Diagonal Option Spreads — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (Implied Correlation, Index Dispersion Baskets &amp; Earnings Vol Crush): Exact T+1 post-earnings IV surface projection, weighted calendar Greeks, and PEAD drift capture.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Two-Phase%20Institutional%20Earnings%20Volatility%20%26%20PEAD%20Trading%20Lifecycle&amp;subtitle=Transitioning%20from%20Pre-Print%20Jump%20Overpricing%20to%20Post-Print%20Institutional%20Drift%20Underpricing&amp;steps=T-1%20Pre-Print%20Screen%3A%3AFlag%20stocks%20where%20extracted%20%CF%83_earn%20exceeds%2012-quarter%20RMS%20move%20by%20%3E25%25%20%28retail%20lotto%20inflation%29%7CPre-Print%20Calendar%20%2F%20Fly%3A%3ASell%20overpriced%20Wk1%20ATM%2FWing%20vs%20Long%20Mth2%20anchor%20%28sized%20strictly%20on%20Jump-Weighted%20Vega!%29%7CT%2B1%2009%2035%20ET%20Vol%20Crush%3A%3AClose%20pre-print%20short%20Wk1%20leg%20once%20%CF%83_earn%C2%B2%20vanishes%3B%20audit%20guidance%20surprise%20%26%20analyst%20revisions%7CT%2B1%20to%20T%2B12%20PEAD%20Drift%3A%3ABuy%20cheap%20post-crush%2014d%E2%80%9321d%2035d%2F15d%20Call%20%28or%20Put%29%20spreads%20on%20%3E1.5%CF%83%20beat-and-raise%20surprises!&amp;metrics=PRE-PRINT%20EDGE%3A%3AShort%20Lotto%20%CF%83_earn%3A%3AWhen%20Implied%20%3E%201.25x%20Hist%7CINCOMPLETE%20CRUSH%3A%3AGap%20%20%3E%202.0%20%CF%83_earn%3A%3AGuidance%20Shock%20Regime!%7CT%2B1%20POST-CRUSH%20EDGE%3A%3ALong%2014d%20Gamma%2FPEAD%3A%3APost-Print%20Vol%20Too%20Cheap!%7CDISPERSION%20LINK%3A%3AHold%20Top%20Beats!%3A%3ALet%20Winners%20Drift%20ITM</image:loc>
      <image:title>Two-phase institutional earnings volatility lifecycle from pre-print calendar structure to T+1 post-crush PEAD diagonal</image:title>
      <image:caption>Post-Earnings Volatility Crush &amp; PEAD Calendar / Diagonal Option Spreads — Two-phase institutional earnings volatility lifecycle from pre-print calendar structure to T+1 post-crush PEAD diagonal (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Single-Stock%20Implied%20vs%20Realized%20Volatility%20Around%20%E2%89%A51.5%CF%83%20Earnings%20Surprises&amp;subtitle=Notice%20the%20regime%20flip%3A%20Implied%20%3E%20Realized%20BEFORE%20the%20print%2C%20then%20Realized%20%3E%20Implied%20for%2010%20days%20AFTER!&amp;steps=T-5%20to%20T-1%20Pre-Print%20Quiet%3A%3ADiffusive%20Realized%2027%25%20vs%20Headline%20IV%2074%25%20%E2%80%94%20Option%20holders%20wait%20in%20%22earnings%20freeze%22%20pre-print%7CEarnings%20Night%20%28T0%20%E2%86%92%20T%2B1%29%3A%3AImplied%20%C2%B17.5%25%20vs%20Realized%20%C2%B16.8%25%20Avg%20%E2%80%94%20Retail%20lotto%20buyers%20slightly%20overpay%20for%20binary%20jump%7CT%2B1%20to%20T%2B5%20Post-Crush%20PEAD%3A%3APost-Crush%20IV%2032%25%20vs%20Realized%2043%25!%20%E2%80%94%20Analyst%20revisions%20%26%20institutional%20VWAP%20drive%20%2B11v%20edge!%7CT%2B6%20to%20T%2B15%20Mean%20Normalization%3A%3AImplied%2031%25%20vs%20Realized%2032%25%20%E2%80%94%20Liquidity%20equilibrium%20restored%20until%20next%20quarterly%20cycle&amp;metrics=PRE-PRINT%20BIAS%3A%3AIV%20Overstates%20%2B8%25%3A%3ARetail%20Lotto%20Demand%7CPOST-CRUSH%20BIAS%3A%3AIV%20Understates%20-11v!%3A%3APEAD%20Follow-Through%7CBETA%20HEDGE%3A%3AShort%20Sector%20ETF%3A%3AIsolates%20Pure%20Stock%20PEAD%7CEXECUTION%20VENUE%3A%3A18%20OPRA%20Exchanges%3A%3AWait%20Past%2009%3A40%20ET%20Spreads</image:loc>
      <image:title>Comparison of implied versus realized single-stock volatility across Pre-Print Day T+1 Crush and Post-Earnings Days T+2 to T+10</image:title>
      <image:caption>Post-Earnings Volatility Crush &amp; PEAD Calendar / Diagonal Option Spreads — Comparison of implied versus realized single-stock volatility across Pre-Print Day T+1 Crush and Post-Earnings Days T+2 to T+10 (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/hard-to-borrow-short-rebate-spikes-single-stock-skew</loc>
    <lastmod>2026-11-14T19:47:12.338Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/hard-to-borrow-short-rebate-spikes-single-stock-skew-hero-2026.png</image:loc>
      <image:title>Equity Repo &amp; Hard-to-Borrow Short-Fee Spikes in Single-Stock Dispersion — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (Implied Correlation, Index Dispersion Baskets &amp; Earnings Vol Crush): Extracting option-implied borrow fees q_repo from synthetic forwards and avoiding Reg SHO squeeze traps.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Institutional%20Single-Stock%20Surface%20Pre-Processor%3A%20Borrow%20%26%20Dividend%20Strip&amp;subtitle=Never%20fit%20SVI%20or%20price%20dispersion%20legs%20before%20solving%20F_syn%28T%29%20per%20expiration!&amp;steps=1.%20Discrete%20Cash%20Divs%3A%3ALoad%20projected%20ex-dividend%20dates%20%26%20cash%20amounts%3B%20discount%20via%20live%20CME%20SOFR%20OIS%20curve%7C2.%20American%20De-Americanize%3A%3ARun%20fast%20Leisen-Reimer%20%2F%20Andersen-Lake%20American%20solver%20on%205%20near-ATM%20Call%2FPut%20pairs%7C3.%20Solve%20Implied%20q_repo%28T%29%3A%3AExtract%20term%20structure%20of%20option-implied%20borrow%20fees%20q_repo%28T%29%20across%201M%2C%203M%2C%206M%2C%201Y%7C4.%20Dispersion%20HTB%20Gate%3A%3AAuto-exclude%20any%20stock%20with%20q_repo%20%3E%202.5%25%20or%20short-interest%20%3E%2014%25%20of%20float%20from%20basket!&amp;metrics=GC%20EASY-TO-BORROW%3A%3Aq_repo%20%E2%89%88%200.25%25%E2%80%930.40%25%3A%3AAAPL%2C%20MSFT%2C%20JPM%2C%20XOM%7CSPECIAL%20%2F%20WARM%20BORROW%3A%3Aq_repo%20%3D%202%25%E2%80%9310%25%3A%3AElevated%20Squeeze%20Hazard%7CHARD-TO-BORROW%20%28HTB%29%3A%3Aq_repo%20%3D%2015%25%E2%80%93200%25%2B%3A%3AExtreme%20Forward%20Backwardation%7CEARLY-EXERCISE%20FLIP%3A%3Ar%20%E2%88%92%20q_repo%20%3C%200!%3A%3ADeep%20ITM%20Calls%20Exercised!</image:loc>
      <image:title>Four-step surface calibration pre-processor stripping synthetic forwards and implied stock-borrow curves before fitting SVI</image:title>
      <image:caption>Equity Repo &amp; Hard-to-Borrow Short-Fee Spikes in Single-Stock Dispersion — Four-step surface calibration pre-processor stripping synthetic forwards and implied stock-borrow curves before fitting SVI (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Optical%20IV%20Mirage%20When%20Ignoring%20a%2024.1%25%20Borrow%20Fee%20%286M%20ATM%20%24100%20Strike%29&amp;subtitle=How%20omitting%20q_repo%20creates%20a%20fake%2022-vol-point%20Call-Put%20wedge%20out%20of%20a%20clean%2052.0%25%20volatility%20smile&amp;steps=Naive%20Call%20IV%20%28q_repo%20%3D%200%29%3A%3A40.8%25%20Bogus%20IV%20%28-11.2v%20Error!%29%20%E2%80%94%20Naive%20model%20thinks%20F%20%3D%20%24102.28%20instead%20of%20true%20%2490.66%7CNaive%20Put%20IV%20%28q_repo%20%3D%200%29%3A%3A63.1%25%20Bogus%20IV%20%28%2B11.1v%20Error!%29%20%E2%80%94%20Naive%20model%20mistakes%20%249.34%20borrow%20discount%20for%20put%20fear!%7CTrue%20Black-76%20Call%20%28F%3D%2490.66%29%3A%3A52.0%25%20Exact%20Arbitrage-Free%20IV%20%E2%80%94%20Priced%20off%20Put-Call-Parity%20implied%20forward%20F_syn%7CTrue%20Black-76%20Put%20%28F%3D%2490.66%29%3A%3A52.0%25%20Exact%20Arbitrage-Free%20IV%20%E2%80%94%20Zero%20parity%20wedge%3B%20ready%20for%20clean%20SVI%20calibration!&amp;metrics=NAIVE%20PARITY%20ERROR%3A%3A22.3%20Vol%20Pt%20Wedge!%3A%3A100%25%20Model%20Carry%20Bug%7CREGULATORY%20RULE%3A%3ASEC%20Reg%20SHO%20204%3A%3AStrict%20Close-Out%20Buy-Ins%7CCLEARING%20VENUE%3A%3AOCC%20Stock%20Loan%3A%3ACentralized%20Rebate%20Market%7CRUT%20DISPERSION%20NOTE%3A%3A28%25%20of%20RUT%20Warm%2FHTB!%3A%3AWhy%20RUT%20Disp%20Uses%20ETFs</image:loc>
      <image:title>Distortion in naive Black-Scholes Call and Put implied volatilities when ignoring a 24% hard-to-borrow fee versus true 52% Black-76 vol</image:title>
      <image:caption>Equity Repo &amp; Hard-to-Borrow Short-Fee Spikes in Single-Stock Dispersion — Distortion in naive Black-Scholes Call and Put implied volatilities when ignoring a 24% hard-to-borrow fee versus true 52% Black-76 vol (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/nasdaq-100-vxn-ai-semiconductor-tech-dispersion-premia</loc>
    <lastmod>2026-11-14T22:41:31.088Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/nasdaq-100-vxn-ai-semiconductor-tech-dispersion-premia-hero-2026.png</image:loc>
      <image:title>Nasdaq-100 (NDX / VXN) Tech &amp; Semiconductor Dispersion vs S&amp;P 500 — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (Implied Correlation, Index Dispersion Baskets &amp; Earnings Vol Crush): Trading AI semiconductor vs SaaS dispersion against NDX/QQQ while hedging 10Y real-rate duration beta.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Institutional%20Nasdaq-100%20%28NDX%29%20Dispersion%20Architecture%20%26%20Rate%20Filter&amp;subtitle=Neutralizing%20Semiconductor%20Sympathy%20and%20Treasury%20Real-Rate%20Beta%20inside%20a%2025-stock%20NDX%20basket&amp;steps=1.%20MOVE%20%2F%2010Y%20TIPS%20Gate%3A%3ACheck%20CME%20SOFR%20%2F%20Treasury%20MOVE%20index%3A%20pause%20short-NDX%20correlation%20if%2010Y%20yields%20are%20breaking%20out!%7C2.%203-Cluster%20NDX%20Basket%3A%3ABalance%20AI%20Semis%20%28NVDA%2FAVGO%2FAMD%29%20vs%20Enterprise%20SaaS%20%28CRM%2FADBE%2FNOW%29%20vs%20Consumer%2FBio%20%28COST%2FAMGN%2FNFLX%29%7C3.%20Short%20SMH%20Sub-Hedge%3A%3ASplit%20short%20index%20vega%2075%25%20NDX%20%2B%2025%25%20SMH%20ETF%20to%20neutralize%20correlated%20AI%20capex%20sympathy%20gaps!%7C4.%20VXN-VIX%20RV%20Overlay%3A%3AScale%20short%20NDX%20leg%20up%20by%20%2B20%25%20whenever%20VXN%20%E2%88%92%20VIX%20spread%20exceeds%2090th%20percentile%20%28%2B7.2v%29!&amp;metrics=OPTIMAL%20SHORT%20MIX%3A%3A75%25%20NDX%20%2B%2025%25%20SMH%3A%3AKills%20Semi%20Sympathy%20Leak%7CAI%20vs%20SAAS%20CORREL%3A%3A%2B0.12%20to%20%2B0.28%3A%3AAI%20Disrupts%20Legacy%20Seat%20SaaS!%7CRATE-SHOCK%20NDX%20%CF%81%3A%3A0.76%2B%20%282022%20Style%29%3A%3ARespect%20MOVE%20%3E%20125%20Gate!%7CNDX%20CAP%20REBALANCE%3A%3A48%25%20%E2%86%92%2040%25%20Rule%3A%3ACheck%20Nasdaq%20Cap%20Caps</image:loc>
      <image:title>Four-stage Nasdaq-100 dispersion portfolio construction separating AI hardware SaaS software and non-tech consumer names</image:title>
      <image:caption>Nasdaq-100 (NDX / VXN) Tech &amp; Semiconductor Dispersion vs S&amp;P 500 — Four-stage Nasdaq-100 dispersion portfolio construction separating AI hardware SaaS software and non-tech consumer names (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Nasdaq-100%20Realized%20Pairwise%20Correlation%20Across%20Macro%20%26%20Tech%20Regimes&amp;subtitle=Conditioning%20NDX%20dispersion%20sizing%20on%20Treasury%20rate%20volatility%20%28MOVE%29%20prevents%202022-style%20drawdowns&amp;steps=AI%20vs%20SaaS%20Capex%20Rotation%3A%3A24.8%25%20Realized%20NDX%20%CF%81%20%E2%80%94%20Semis%20rally%20while%20SaaS%20lags%3B%20peak%20%2B16%20pt%20NDX%20dispersion%20harvest!%7CCalm%20Earnings%20Season%3A%3A31.2%25%20Realized%20NDX%20%CF%81%20%E2%80%94%20Strong%20idiosyncratic%20gaps%20on%20NFLX%2C%20TSLA%2C%20META%2C%20AMZN%2C%20ISRG%7CPeak%20Semi%20Sympathy%20Night%3A%3A58.4%25%203-Day%20Realized%20%CF%81%20%E2%80%94%20Unhedged%20NDX%20bleeds%20unless%20paired%20with%2025%25%20Short%20SMH%20sub-hedge!%7C10Y%20Yield%20Breakout%20%28MOVE%3E130%29%3A%3A77.5%25%20Realized%20NDX%20%CF%81%20%E2%80%94%20Long-duration%20tech%20sells%20off%20as%20one%20block%3B%20cut%20short%20NDX%20to%200.5x!&amp;metrics=MACRO%20TRIGGER%3A%3AMOVE%20Index%20%3C%20110%3A%3AGreen%20Light%20for%20NDX%20Disp%7CVXN-VIX%20ENTRY%3A%3ASpread%20%3E%20%2B6.5%20Vol%3A%3ARich%20Tech%20Index%20Fear%7CFUTURES%20HEDGE%3A%3ACME%20E-Mini%20NQ%3A%3A0.25-Tick%20Deep%20Liquidity%7CEXOTIC%20SUPPLY%20LINK%3A%3ATech%20Worst-Of%20Notes%3A%3ANext%3A%20Autocallable%20Flows!</image:loc>
      <image:title>Realized Nasdaq-100 pairwise correlation across four macro and AI rotation regimes from 2022 rate hikes to 2025 AI vs SaaS rotation</image:title>
      <image:caption>Nasdaq-100 (NDX / VXN) Tech &amp; Semiconductor Dispersion vs S&amp;P 500 — Realized Nasdaq-100 pairwise correlation across four macro and AI rotation regimes from 2022 rate hikes to 2025 AI vs SaaS rotation (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/worst-of-autocallable-structured-notes-correlation-supply</loc>
    <lastmod>2026-11-14T21:04:10.852Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/worst-of-autocallable-structured-notes-correlation-supply-hero-2026.png</image:loc>
      <image:title>Worst-of Basket Autocallable Notes: Structured-Product Correlation Supply — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (Implied Correlation, Index Dispersion Baskets &amp; Earnings Vol Crush): Exact ∂V/∂ρ sign mechanics of Index Autocallables vs Worst-of Single-Stock Autocallables on dealer books.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=How%20Retail%20Autocallables%20Create%20Two%20Distinct%20Hedge-Fund%20Recycling%20Trades&amp;subtitle=Tracing%20exotic%20bank%20inventory%20from%20retail%20wealth%20channels%20to%20institutional%20OTC%20volatility%20pods&amp;steps=Channel%20A%20%20Worst-Of%20Stock%20Notes%3A%3AUS%20retail%20sells%2060%25%20KI%20Worst-of%20Put%20on%20NVDA%2FTSLA%2FMETA%3B%20Bank%20gets%20LONG%20Stock%20Vega%20%26%20SHORT%20%CF%81!%7CBank%20Hedge%20A%20%28Buys%20Corr!%29%3A%3ABank%20dumps%20cheap%20NVDA%2FTSLA%203M%E2%80%931Y%20puts%20onto%20OPRA%20AND%20bids%20Correlation%20%2F%20sells%20Dispersion%20to%20pods!%7CChannel%20B%20%20Index%20Autocalls%3A%3AEuro%2FAsian%20retail%20sells%20SX5E%2FSPX%2FNKY%20KI%20Puts%3B%20Bank%20gets%20LONG%20Index%20Vega%20%281Y%E2%80%933Y%20tenors%29!%7CBank%20Hedge%20B%20%28Sells%20Index%20Vol%29%3A%3ABank%20crushes%201Y%E2%80%932Y%20SX5E%20%26%20SPX%20implied%20vol%20relative%20to%20stocks%E2%80%94creating%20cheap%20Reverse%20Dispersion!&amp;metrics=US%20RETAIL%20FAVORITE%3A%3AWorst-Of%203%20Tech%2FRUT%3A%3ABank%20Sells%20Stock%20Vol%20%26%20Disp!%7CEURO%2FASIA%20FAVORITE%3A%3ASX5E%20%2F%20HSCEI%20Index%3A%3ABank%20Sells%201Y%E2%80%933Y%20Index%20Vol%7CCROSS-GAMMA%20SIGN%3A%3A%E2%88%82%C2%B2V%20%2F%20%E2%88%82S_1%20%E2%88%82S_2%20%E2%89%A0%200%3A%3AShifts%20Vega%20to%20Laggard!%7CCAPITAL%20DRIVER%3A%3ABasel%20FRTB%20DRC%2FRRAO%3A%3AExotic%20Residual%20Risk%20Add-On</image:loc>
      <image:title>Two-channel structured-product flow diagram showing how Worst-of Stock Autocalls and Index Autocalls shape bank recycling trades</image:title>
      <image:caption>Worst-of Basket Autocallable Notes: Structured-Product Correlation Supply — Two-channel structured-product flow diagram showing how Worst-of Stock Autocalls and Index Autocalls shape bank recycling trades (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=1-Year%2060%25%20Knock-In%20Put%20Fair%20Value%20%28%25%20of%20Notional%2C%20%CF%83_i%20%3D%2035%25%29%20vs%20Correlation&amp;subtitle=Visualizing%20why%20lower%20pairwise%20correlation%20triples%20Worst-of%20Put%20value%20and%20leaves%20banks%20Short%20%CF%81&amp;steps=Single%20Stock%20%28or%20Wo3%20at%20%CF%81%3D1.00%29%3A%3A4.10%25%20Fair%20Value%20%E2%80%94%20Baseline%201-asset%2060%25%20Down-and-In%20Put%20price%7CWorst-of-3%20at%20High%20%CF%81%20%3D%200.75%3A%3A6.35%25%20Fair%20Value%20%281.55x%29%20%E2%80%94%20High%20correlation%20limits%20divergence%3B%20bank%20loses%20if%20%CF%81%20rises%20here!%7CWorst-of-3%20at%20Normal%20%CF%81%20%3D%200.35%3A%3A9.40%25%20Fair%20Value%20%282.29x%29%20%E2%80%94%20Typical%20bank%20pricing%20mark%3B%20funds%2014%25%E2%80%9316%25%20retail%20coupon%7CWorst-of-3%20at%20Zero%20%CF%81%20%3D%200.00%3A%3A11.85%25%20Fair%20Value%20%282.89x%29%20%E2%80%94%20Maximum%20dispersion%20lifts%20bank%20asset%20value%20to%20peak!&amp;metrics=CEGA%20SENSITIVITY%3A%3A-8.2%20bps%20per%20%2B1%25%20%CF%81%3A%3ABank%20Loses%20When%20%CF%81%20Rises!%7CBANK%20HEDGE%20NEED%3A%3ABuy%20%CF%81%20%2F%20Sell%20Stock%20Vol%3A%3ASubsidizes%20Pod%20Dispersion!%7CRUT%20LAGGARD%20EFFECT%3A%3ARUT%20Absorbs%2080%25%20Vega%3A%3AIn%20SPX%2FNDX%2FRUT%20Trios%7CREGULATORY%20CAPITAL%3A%3ABasel%20III%20FRTB%20RRAO%3A%3A1.0%25%20Gross%20Notional%20Charge</image:loc>
      <image:title>Pricing of a 1-Year 60%-Barrier Down-and-In Put across Single-Stock vs Worst-of-2 vs Worst-of-3 baskets at varying correlations</image:title>
      <image:caption>Worst-of Basket Autocallable Notes: Structured-Product Correlation Supply — Pricing of a 1-Year 60%-Barrier Down-and-In Put across Single-Stock vs Worst-of-2 vs Worst-of-3 baskets at varying correlations (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/ex-dividend-american-call-early-exercise-dispersion-traps</loc>
    <lastmod>2026-11-14T19:46:29.621Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/ex-dividend-american-call-early-exercise-dispersion-traps-hero-2026.png</image:loc>
      <image:title>Ex-Dividend American Call Early-Exercise Traps in Equity Dispersion — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (Implied Correlation, Index Dispersion Baskets &amp; Earnings Vol Crush): Exact SOFR-adjusted ex-dividend American call exercise inequality and OCC 17:30 ET Friday pin defense.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Institutional%20Dispersion%20Operations%3A%20Dividend%20%26%20OPEX%20Settlement%20Engine&amp;subtitle=Zero-leakage%20daily%20operational%20workflow%20connecting%20OPRA%2C%20CME%20SOFR%2C%20and%20OCC%2017%3A30%20ET%20deadlines&amp;steps=14%2030%20ET%20T-1%20Cum-Div%20Scan%3A%3AQuery%20corporate%20actions%20for%20all%20basket%20stocks%20going%20ex-div%20tomorrow%3B%20compute%20P_ex%20%2B%20K%281%E2%88%92e%5E%E2%88%92r%CF%84%29%7C15%2030%20ET%20Roll%20or%20Exercise%3A%3AOn%20LONG%20ITM%20calls%20where%20D%20%3E%20Hurdle%3A%20either%20sell%20Call%20%2F%20buy%20Stock%20onCOB%20OR%20submit%20OCC%20exercise!%7CShort%20Call%20Assignment%20Guard%3A%3AIn%20Reverse%20Call%20Dispersion%3A%20buy%20back%20or%20roll%20any%20short%20ITM%20call%20with%20P_ex%20%2B%20K%C2%B7r%C2%B7%CF%84%20%3C%20D%20%2B%20%240.08!%7COPEX%20Friday%2015%2040%20ET%20Sweep%3A%3AFlatten%20all%20constituent%20options%20trading%20within%20%C2%B11.5%25%20of%20strike%20before%2016%3A00%E2%80%9317%3A30%20ET%20OCC%20window!&amp;metrics=LONG%20CALL%20LEAKAGE%3A%3AUp%20to%20%240.80%20%2F%20Shr%3A%3AIf%20You%20Forget%20Exercise!%7CBETTER%20THAN%20EXERCISE%3A%3ASell%20Call%20vs%20Stock%3A%3ASaves%20Financing%20%26%20Margin%7CSHORT%20CALL%20HAZARD%3A%3AOwe%20Cash%20Dividend!%3A%3APlus%20Overnight%20%CE%94%20Jump%7COCC%20CEN%20DEADLINE%3A%3A17%3A30%20PM%20ET%20Sharp%3A%3A90-Min%20Post-Close%20Risk!</image:loc>
      <image:title>Automated daily operational checklist for managing American early-exercise and expiration pin risk on dispersion pods</image:title>
      <image:caption>Ex-Dividend American Call Early-Exercise Traps in Equity Dispersion — Automated daily operational checklist for managing American early-exercise and expiration pin risk on dispersion pods (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Quarterly%20Call%20Early-Exercise%20Propensity%20by%20SPX%20Constituent%20Dividend%20Yield&amp;subtitle=At%204.50%25%20SOFR%2C%20early%20call%20exercise%20concentrates%20heavily%20in%20Energy%2C%20Banks%2C%20Pharma%20%26%20Telecom&amp;steps=Mega-Cap%20Tech%20%28NVDA%2FMETA%2FAMZN%29%3A%3A0.0%25%E2%80%930.4%25%20Div%20Yield%20%E2%80%94%20K%C2%B7r%C2%B7%CF%84%20hurdle%20dominates%20completely%3B%20ZERO%20ex-div%20call%20exercise!%7CCore%20Industrials%20%2F%20Apple%20%28AAPL%29%3A%3A0.5%25%E2%80%931.4%25%20Div%20Yield%20%E2%80%94%20Early%20exercise%20occurs%20ONLY%20inside%20final%205%E2%80%938%20days%20before%20expiry%7CMoney-Center%20Banks%20%28JPM%2FBAC%29%3A%3A2.1%25%E2%80%932.8%25%20Div%20Yield%20%E2%80%94%20Deep%20ITM%20calls%20%28%3C0.90%20moneyness%29%20cross%20exercise%20hurdle%20inside%2025%20DTE%7CHigh-Yield%20Energy%2FPharma%2FTelco%3A%3A3.6%25%E2%80%936.2%25%20Yield%20%28CVX%2FXOM%2FABBV%2FVZ%29%20%E2%80%94%20Frequent%20early%20exercise%20out%20to%2060%20DTE%3B%20scan%20every%20quarter!&amp;metrics=HIGH-ALERT%20SECTORS%3A%3AXLE%20%C2%B7%20XLU%20%C2%B7%20XLV%20%C2%B7%20XLF%3A%3AYields%20%3E%203.0%25%20Annual%7CDEEP%20PUT%20EXERCISE%3A%3AHigh-SOFR%20Zero-Div%3A%3ALong%20Holder%20Wants%20r%C2%B7K!%7CTAX%20EFFICIENCY%3A%3ASPX%20%3D%20IRC%20Sec%201256%3A%3A60%2F40%20Mark-to-Market%7CNEXT%20RV%20DIMENSION%3A%3ASPX%20vs%20RUT%20%26%20SX5E%3A%3ACross-Index%20Dispersion!</image:loc>
      <image:title>High-dividend S&amp;P 500 dispersion constituents ranked by quarterly early-call-exercise frequency at 4.5% SOFR rates</image:title>
      <image:caption>Ex-Dividend American Call Early-Exercise Traps in Equity Dispersion — High-dividend S&amp;P 500 dispersion constituents ranked by quarterly early-call-exercise frequency at 4.5% SOFR rates (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/cross-index-spx-rut-sx5e-relative-dispersion-arbitrage</loc>
    <lastmod>2026-11-14T20:02:46.855Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/cross-index-spx-rut-sx5e-relative-dispersion-arbitrage-hero-2026.png</image:loc>
      <image:title>Cross-Index Dispersion Arbitrage: S&amp;P 500 (SPX) vs Russell 2000 &amp; EURO STOXX 50 — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (Implied Correlation, Index Dispersion Baskets &amp; Earnings Vol Crush): Market-neutral Long SPX Dispersion vs Reverse Eurex SX5E Dispersion and RUT/KRE/XBI sub-baskets.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Cross-Atlantic%20SPX%20vs%20EURO%20STOXX%2050%20%28SX5E%29%20Dispersion%20Box%20Architecture&amp;subtitle=Neutralizing%20global%20%CF%81%20%E2%86%92%200.85%20tail%20risk%20while%20harvesting%20%2B15%20to%20%2B23%20points%20of%20structural%20US-EU%20wedge&amp;steps=US%20Leg%20%28Long%20SPX%20Dispersion%29%3A%3ASell%20Cboe%20SPX%20variance%2Fstraddles%20%28%CF%81_imp%20%E2%89%88%2029%25%29%20vs%20Buy%2032-stock%20US%20MIQP%20constituent%20basket%7CEU%20Leg%20%28Reverse%20SX5E%20Disp%29%3A%3ABUY%20cheap%20Eurex%20SX5E%20index%20vol%20%28%CF%81_imp%20%E2%89%88%2026%25%29%20vs%20SELL%2025%20liquid%20Euro%20Stoxx%20single-stock%20vols!%7C11%2030%20AM%20ET%20Sync%20Mark%3A%3AAlign%20daily%20risk%20%26%20Whalley-Wilmott%20delta%20hedges%20at%20European%2017%3A30%20CET%20close%3B%20hedge%20EUR%20P%26L%20via%20CME%206E%7CRUT%20Tactical%20Macro%20Satellite%3A%3ATrade%20RUT%20vs%20%28KRE%20%2B%20XBI%20%2B%20IWM%20Sectors%29%20when%20US%20small-cap%20Worst-of%20notes%20distort%20RVX!&amp;metrics=NET%20BOX%20EDGE%3A%3A%2B12%20to%20%2B18%20Corr%20Pts%3A%3ABefore%20~2.5%20Pt%20Exec%20Cost%7CCRISIS%20DRAWDOWN%20CUT%3A%3A-68%25%20vs%20Naked%20US%3A%3ALong%20SX5E%20Vol%20Surges!%7CEU%20DIVIDEND%20SEASON%3A%3AApril%E2%80%93May%20Annual!%3A%3ACheck%20Annual%20Euro%20Ex-Divs%7CFX%20P%26L%20EXPOSURE%3A%3AHedging%20Net%20EUR%20Gain%3A%3ACME%206E%20Micro%2FStd%20Futures</image:loc>
      <image:title>Cross-Atlantic dispersion box combining Long US S&amp;P 500 Dispersion on Cboe with Reverse EURO STOXX 50 Dispersion on Eurex</image:title>
      <image:caption>Cross-Index Dispersion Arbitrage: S&amp;P 500 (SPX) vs Russell 2000 &amp; EURO STOXX 50 — Cross-Atlantic dispersion box combining Long US S&amp;P 500 Dispersion on Cboe with Reverse EURO STOXX 50 Dispersion on Eurex (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Global%20Implied%20minus%20Realized%20Correlation%20Spread%20Across%20Major%20Indices&amp;subtitle=Highlighting%20why%20Long%20SPX%20Dispersion%20%2B%20Reverse%20SX5E%2FNikkei%20Dispersion%20is%20a%20classic%20pod%20staple&amp;steps=US%20S%26P%20500%20%28SPX%29%3A%3A%2B11.4%20Corr%20Pt%20Edge%20%28Long%20Disp%29%20%E2%80%94%20Rich%20index%20put%20demand%20%2B%20low%2011-sector%20realized%20%CF%81%7CUS%20Nasdaq-100%20%28NDX%29%3A%3A%2B5.8%20Corr%20Pt%20Edge%20%28Long%20Disp%29%20%E2%80%94%20High%20single-stock%20AI%20jumps%20offset%20tech%20beta%7CEurope%20EURO%20STOXX%2050%3A%3A-8.2%20Corr%20Pt%20Wedge%20%28REVERSE%20Disp!%29%20%E2%80%94%20Retail%20index%20autocalls%20depress%20SX5E%20below%20realized%20%CF%81!%7CJapan%20Nikkei%20225%3A%3A-9.5%20Corr%20Pt%20Wedge%20%28REVERSE%20Disp!%29%20%E2%80%94%20USD%2FJPY%20exporter%20factor%20synchronizes%20Tokyo%20stocks&amp;metrics=US-EU%20SPREAD%3A%3A%2B19.6%20Corr%20Pts%20Total%3A%3A%2B11.4%20US%20plus%20%2B8.2%20EU!%7CSHARPE%20IMPROVEMENT%3A%3A1.65%20%E2%86%92%202.45%20Sharpe%3A%3AGlobal%20Box%20vs%20US-Only%7CEUREX%20CLEARING%3A%3AEurex%20Prisma%20Margin%3A%3APortfolio-Based%20Offsets%7CINTRADAY%20FRONTIER%3A%3AFriday%200DTE%20Disp%3A%3ANext%3A%20Ultra-Short%20Gamma!</image:loc>
      <image:title>Implied versus realized variance correlation comparison across SPX NDX EURO STOXX 50 and Nikkei 225</image:title>
      <image:caption>Cross-Index Dispersion Arbitrage: S&amp;P 500 (SPX) vs Russell 2000 &amp; EURO STOXX 50 — Implied versus realized variance correlation comparison across SPX NDX EURO STOXX 50 and Nikkei 225 (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/tactical-0dte-friday-megacap-vs-spx-intraday-dispersion</loc>
    <lastmod>2026-11-14T20:02:21.211Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/tactical-0dte-friday-megacap-vs-spx-intraday-dispersion-hero-2026.png</image:loc>
      <image:title>Intraday 0DTE &amp; Weekly Friday Dispersion: Mega-Cap Gamma vs SPXW — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (Implied Correlation, Index Dispersion Baskets &amp; Earnings Vol Crush): Harvesting positive-GEX SPXW index pinning against Friday mega-cap intraday single-stock trends.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Friday%20Intraday%200DTE%20Dispersion%20Execution%20Clock%20%2808%3A30%20to%2015%3A40%20ET%29&amp;subtitle=Strict%20intraday%20regime%20gating%20avoids%2008%3A30%20ET%20macro%20correlation%20spikes%20and%2016%3A00%20ET%20OCC%20pin%20risk&amp;steps=08%2030%E2%80%9309%2045%20ET%20Macro%20Wait%3A%3ALet%2008%3A30%20NFP%2FPCE%20%26%2009%3A30%20cash-open%20correlation%20burst%20clear%3B%20verify%20SPXW%20Net%20GEX%20%3E%20%2B%243B!%7C09%2045%E2%80%9310%2005%20ET%20Entry%20Print%3A%3ABuy%2010-name%20Mega-Cap%20ATM%20Friday%20straddles%20via%20COB%3B%20sell%20Dollar-Gamma-matched%20SPXW%2FNDXP%20straddle%7C10%2015%E2%80%9315%2025%20ET%20Limit%20Scalps%3A%3APlace%20passive%20cash-equity%20limit%20orders%20at%20%C2%B10.75%25%2C%20%C2%B11.50%25%2C%20%C2%B12.25%25%20per%20stock%20to%20monetize%20intraday%20swings!%7C15%2030%E2%80%9315%2040%20ET%20Hard%20Flatten%3A%3AClose%20100%25%20of%20single-stock%20options%20%26%20residual%20share%20deltas%20before%20OCC%20STANS%20%26%2017%3A30%20CEN%20pin!&amp;metrics=NO-TRADE%20FILTER%3A%3ANegative%20SPX%20GEX!%3A%3ASkip%20Trend%2FCascade%20Fridays%7CPASSIVE%20SCALP%20BONUS%3A%3AEarns%20%2B0.5%20bps%20Rebate%3A%3AZero%20Taker%20Spread%20Cost!%7COCC%20STANS%20CHECK%3A%3AEvery%2020%20Minutes!%3A%3AIntraday%200DTE%20Add-On%7COVERNIGHT%20EXPOSURE%3A%3A%240.00%20Weekend%20Risk%3A%3A100%25%20Flat%20at%2015%3A45%20ET</image:loc>
      <image:title>Minute-by-minute Friday 0DTE dispersion execution schedule from 08:30 ET macro check to 15:40 ET mandatory flatten</image:title>
      <image:caption>Intraday 0DTE &amp; Weekly Friday Dispersion: Mega-Cap Gamma vs SPXW — Minute-by-minute Friday 0DTE dispersion execution schedule from 08:30 ET macro check to 15:40 ET mandatory flatten (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
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      <image:title>Intraday realized S&amp;P 500 correlation across four Friday regimes comparing 08:30 macro hour versus Positive-GEX midday pin</image:title>
      <image:caption>Intraday 0DTE &amp; Weekly Friday Dispersion: Mega-Cap Gamma vs SPXW — Intraday realized S&amp;P 500 correlation across four Friday regimes comparing 08:30 macro hour versus Positive-GEX midday pin (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/finra-4210-portfolio-margin-netting-equity-dispersion</loc>
    <lastmod>2026-11-14T20:01:03.650Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/finra-4210-portfolio-margin-netting-equity-dispersion-hero-2026.png</image:loc>
      <image:title>FINRA Rule 4210 TIMS &amp; Prime-Broker Margin Netting on Equity Dispersion — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (Implied Correlation, Index Dispersion Baskets &amp; Earnings Vol Crush): Optimizing return-on-capital across FINRA 4210 TIMS, OCC STANS, and Prime-Broker House Stress Engines.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Institutional%20Dispersion%20Margin%20Stack%3A%20Statutory%20TIMS%20to%20Crisis%20Buffer&amp;subtitle=Structuring%20trades%20so%20both%20OCC%2FTIMS%20and%20Prime-Broker%20House%20Vega%20Models%20grant%20maximum%20netting&amp;steps=1.%20Account%20Unification%3A%3ATrade%20Cboe%20SPX%20%28SEC%20security%20option!%29%20alongside%20OPRA%20stocks%20%2B%20cash%20delta%20hedges%20in%20ONE%204210%20PM%20account%7C2.%20Broad-Basket%20Qualification%3A%3AHold%20%E2%89%A528%E2%80%9332%20stocks%20across%20GICS%20sectors%20%28%3C8%25%20max%20single%20weight%29%20to%20unlock%20TIMS%20index%20group%20offset%7C3.%20House%20Vega%2FWing%20Relief%3A%3AAttach%20cheap%2010-delta%20SPX%20put%20wings%20or%20VIX%20calls%E2%80%94slices%20Prime-Broker%20House%20Tail%20Stress%20by%20-38%25!%7C4.%20SOFR%20T-Bill%20Collateral%3A%3ACap%20margin%20utilization%20at%20%E2%89%A442%25%20NAV%3B%20invest%20remaining%2058%25%20buffer%20in%20US%20Treasury%20Bills%20earning%20~4.5%25%20SOFR!&amp;metrics=PRODUCT%20MATCH%3A%3ACboe%20SPX%20%2B%20OPRA%3A%3ASame%20SEC%20BD%20Entity!%7CWING%20MARGIN%20HACK%3A%3ABuy%2010d%20SPX%20Puts%3A%3ACuts%20House%20Margin%20-38%25!%7CCOLLATERAL%20YIELD%3A%3A%2B4.5%25%20T-Bill%20Carry%3A%3AZero%20Dead-Cash%20Drag!%7CFCM%20CROSS-MARGIN%3A%3AOCC-CME%20XM%20Account%3A%3ARequired%20If%20Hedging%20in%20ES!</image:loc>
      <image:title>Four-layer institutional margin stack from statutory FINRA Rule 4210 TIMS to Prime-Broker House Stress and cash reserves</image:title>
      <image:caption>FINRA Rule 4210 TIMS &amp; Prime-Broker Margin Netting on Equity Dispersion — Four-layer institutional margin stack from statutory FINRA Rule 4210 TIMS to Prime-Broker House Stress and cash reserves (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Required%20Margin%20Collateral%20Per%20%24100k%20Vega%20Dispersion%20Book%20%28%24%20Millions%29&amp;subtitle=Unifying%20Cboe%20SPX%20%2B%20OPRA%20in%20FINRA%204210%20PM%20and%20capping%2010d%20SPX%20wings%20cuts%20margin%20by%2085%25&amp;steps=Legacy%20Fed%20Reg-T%20Silos%3A%3A%249.20M%20Margin%20%E2%80%94%20Charges%20full%20uncovered%2020%25%20SPX%20haircut%20plus%20standalone%20stock%20legs%7CSplit%20CME%20FCM%20%2B%20SEC%20BD%3A%3A%247.85M%20Margin%20%E2%80%94%20Classic%20operational%20mistake%20when%20hedging%20OPRA%20stocks%20with%20ES%20options%7CUncapped%20FINRA%204210%20PM%3A%3A%242.18M%20Margin%20%E2%80%94%20Unlocks%20TIMS%20%C2%B18%25%20netting%2C%20held%20back%20by%20PB%20-20%25%20crash%20stress%20add-on%7C10d-Capped%20FINRA%204210%20PM%3A%3A%241.36M%20Margin%20%28-85%25!%29%20%E2%80%94%20Caps%20-20%25%20house%20tail%20stress%20AND%20protects%20NAV%20in%20real%20panics!&amp;metrics=CAPITAL%20EFFICIENCY%3A%3A6.76x%20vs%20Reg-T!%3A%3A%241.36M%20vs%20%249.20M%7CES%20FUTURES%20FIX%3A%3ATrade%20SPX%2FSPY%20Delta%3A%3AOr%20Use%20OCC-CME%20Cross-Margin%7CCLEARING%20ENGINE%3A%3AOCC%20STANS%20%2B%20TIMS%3A%3ASEC%20%2F%20CFTC%20Supervised%7CFINAL%20SILO%205%20TOPIC%3A%3AM%26A%20W-Shaped%20Smiles%3A%3AExclude%20Deal%20Targets!</image:loc>
      <image:title>Comparison of required margin collateral across Reg-T Split FCM-BD Uncapped 4210 PM and Wing-Capped 4210 PM dispersion books</image:title>
      <image:caption>FINRA Rule 4210 TIMS &amp; Prime-Broker Margin Netting on Equity Dispersion — Comparison of required margin collateral across Reg-T Split FCM-BD Uncapped 4210 PM and Wing-Capped 4210 PM dispersion books (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/mergers-acquisitions-deal-break-bimodal-w-shaped-smiles</loc>
    <lastmod>2026-11-14T19:49:15.127Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/mergers-acquisitions-deal-break-bimodal-w-shaped-smiles-hero-2026.png</image:loc>
      <image:title>M&amp;A Merger Arbitrage Options: Pricing Bimodal Deal-Break W-Shaped Smiles — VolSurface Desk 2026 quantitative &amp; supervisory data card</image:title>
      <image:caption>VolSurface Desk (Implied Correlation, Index Dispersion Baskets &amp; Earnings Vol Crush): Two-state bimodal option pricing, put-spread p_break extraction, OCC cash-acceleration memos, and basket rules.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=flow&amp;title=Merger-Arbitrage%20Bimodal%20Surface%20Calibration%20%26%20Relative-Value%20Workflow&amp;subtitle=Arbitraging%20disagreements%20between%20Cash%20Merger-Arb%20Desks%20and%20OPRA%20Option%20Chains&amp;steps=1.%20Deal%20Terms%20%26%20OCC%20Memo%3A%3AClassify%20All-Cash%20vs%20Stock-for-Stock%20vs%20Cash%2FStock%20Collar%3B%20read%20OCC%20contract%20adjustment%20rules%7C2.%20Calibrate%20%28p_break%2C%20F_break%29%3A%3AFit%204-parameter%20Two-Lognormal%20Mixture%20%28p_break%2C%20F_break%2C%20%CF%83_break%2C%20%CF%83_topbid%29%20across%20put%20strikes%7C3.%20Cash%20vs%20Option%20Arb%20Check%3A%3ACompare%20Cash-Arb%20p_break%20%3D%20%28K_deal%E2%88%92F%29%2F%28K_deal%E2%88%92F_break%29%20vs%20Put-Spread%20p_break%3B%20sell%20rich%20wing!%7C4.%20Dispersion%20Basket%20Purge%3A%3AImmediately%20exit%20%26%20replace%20any%20All-Cash%20M%26A%20constituent%20inside%20S%26P%20500%20%2F%20NDX%20dispersion%20baskets!&amp;metrics=ABOVE%20K_DEAL%20IV%3A%3A4%25%20to%208%25%20Cliff!%3A%3AOnly%20Bidding-War%20Tail%7CPUT-SPREAD%20EDGE%3A%3Ap_opt%20%3E%20p_cash%20%2B5%25%3A%3AArb%20Funds%20Hedge%20via%20Puts!%7CLEAPS%20CALL%20TRAP%3A%3ACrushed%20to%20%240.00!%3A%3AOCC%20Cash%20Acceleration!%7CSTOCK%20DEAL%20RULE%3A%3AKeep%20or%20Hedge%20Acq.%3A%3ATarget%20Tracks%20Acquirer%20%CF%83!</image:loc>
      <image:title>Four-step quantitative merger-arbitrage option workflow comparing cash-arb forward spread against option-implied p_break</image:title>
      <image:caption>M&amp;A Merger Arbitrage Options: Pricing Bimodal Deal-Break W-Shaped Smiles — Four-step quantitative merger-arbitrage option workflow comparing cash-arb forward spread against option-implied p_break (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?type=bars&amp;title=Characteristic%20Bimodal%20Black-Scholes%20IV%20Curve%20on%20an%20%2485%20Cash%20Buyout%20%28Spot%20%2479%29&amp;subtitle=Visualizing%20the%20dramatic%20volatility%20cliff%20above%20K_deal%20%3D%20%2485%20when%20p_break%20%3D%2022%25%20and%20F_break%20%3D%20%2455&amp;steps=%2460%20Deep%20Break%20Put%20%2876%25%20K%2FS%29%3A%3A46.2%25%20Implied%20Vol%20%E2%80%94%20Prices%20post-break%20standalone%20crash%20variance%20below%20F_break%20%3D%20%2455%7C%2475%20Deal-Break%20Put%20%2895%25%20K%2FS%29%3A%3A54.8%25%20Peak%20Implied%20Vol!%20%E2%80%94%20Maximum%20bimodal%20jump%20uncertainty%20across%20the%20%2479%20%E2%86%92%20%2455%20gap%7C%2482.50%20Arb%20Spread%20Call%20%28104%25%29%3A%3A28.4%25%20Implied%20Vol%20%E2%80%94%20Captures%20the%20remaining%20%246.00%20merger-arbitrage%20convergence%20spread%7C%2490%20Over-Deal%20Call%20%28114%25%20K%2FS%29%3A%3A6.1%25%20Implied%20Vol%20CLIFF!%20%E2%80%94%20Collapses%20by%20-22v%20across%20%247.50%20because%20upside%20is%20capped%20at%20%2485%20cash!&amp;metrics=STRIKE%20CLIFF%3A%3A54.8v%20%E2%86%92%206.1v%20Drop!%3A%3AAcross%20%2475P%20to%20%2490C%7CCALIBRATION%20MODEL%3A%3A2-State%20Mixture%3A%3AReplaces%20Unimodal%20SVI%7CANTITRUST%20REGULATORS%3A%3AFTC%20%C2%B7%20DOJ%20%C2%B7%20EC%20%C2%B7%20CMA%3A%3ADrive%20Binary%20Jump%20Dates%7CSILO%205%20STATUS%3A%3AAll%2020%20Notes%20Linked%3A%3AComplete%20Dispersion%20Stack</image:loc>
      <image:title>Black-Scholes implied volatility smile across strikes from $55 to $95 on an $85 All-Cash M&amp;A target trading at $79</image:title>
      <image:caption>M&amp;A Merger Arbitrage Options: Pricing Bimodal Deal-Break W-Shaped Smiles — Black-Scholes implied volatility smile across strikes from $55 to $95 on an $85 All-Cash M&amp;A target trading at $79 (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/balyasny-amasses-talent-for-international-business</loc>
    <lastmod>2026-11-12T18:25:30.908Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/hedge-fund-balyasny-is-amassing-new-people-to-keep-a-handle-on-its-inter-837cea60.jpg</image:loc>
      <image:title>A person surrounded by multiple screens and papers, representing a busy hedge fund office with international business operations.</image:title>
      <image:caption>As hedge funds expand globally, they must adapt to manage their international business effectively.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/japan-europe-electricity-futures-reach-4-year-high</loc>
    <lastmod>2026-11-12T18:25:35.170Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/fuel-prices-drive-japan-europe-electricity-futures-to-4-year-high-nikkei-b53e21ad.jpg</image:loc>
      <image:title>A graph showing a sharp increase in electricity futures prices, with a red arrow pointing upwards, set against a background of a map of Japan and Europe.</image:title>
      <image:caption>Fuel prices drive Japan and Europe&apos;s electricity futures to a 4-year high, according to recent market trends.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/nikkei-225-derivatives-price-ni225-usd-today</loc>
    <lastmod>2026-11-12T16:34:59.712Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/nikkei-225-derivatives-price-ni225-usd-today-live-price-market-cap-and-c-9e7115dc.jpg</image:loc>
      <image:title>A graph showing the live price of Nikkei 225 derivatives in US dollars, with market capitalization data and a chart displaying the fluctuations.</image:title>
      <image:caption>The Nikkei 225 derivatives price on Binance sees a slight increase, with market capitalization reaching new heights, as investors closely monitor the live chart for any signs of volatility.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/bc-nikkei-225-futures-yahoo-finance-d6a393</loc>
    <lastmod>2026-11-12T16:27:17.036Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/bc-nikkei-225-futures-yahoo-finance-53b9bae6.jpg</image:loc>
      <image:title>A graph showing the Nikkei 225 futures index, possibly on a financial website like Yahoo Finance, with fluctuating lines and possibly a downward trend.</image:title>
      <image:caption>The Nikkei 225 futures index has been experiencing a decline, with investors closely monitoring the market for potential shifts in the global economy.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/macro-hedge-funds-face-worst-stretch-in-years</loc>
    <lastmod>2026-11-11T18:04:42.315Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/market-positioning-risks-mount-as-macro-hedge-funds-face-worst-stretch-i-7fc72960.jpg</image:loc>
      <image:title>A graph showing a sharp decline in a financial market, with red arrows indicating a downward trend, and a background of a cityscape with skyscrapers to represent the macroeconomic environment.</image:title>
      <image:caption>Macro hedge funds face their worst stretch in years as market positioning risks mount, leaving investors to reassess their strategies.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/wall-street-analysts-bullish-stocks-for-long-term-growth</loc>
    <lastmod>2026-11-11T16:49:03.806Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/top-wall-street-analysts-are-bullish-on-these-3-stocks-for-strong-long-t-09c0fa07.jpg</image:loc>
      <image:title>A group of top analysts from Wall Street are optimistic about the long-term growth prospects of three specific stocks.</image:title>
      <image:caption>Top analysts on Wall Street are predicting strong long-term growth for these three stocks, citing their potential for sustained success.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/top-wall-street-analysts-long-term-stock-picks</loc>
    <lastmod>2026-11-11T17:21:42.868Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/top-wall-street-analysts-are-confident-about-these-3-stocks-for-the-long-eb575803.jpg</image:loc>
      <image:title>A group of confident financial analysts gathered around a large screen displaying stock market data, with a cityscape of New York in the background, representing Wall Street.</image:title>
      <image:caption>Top analysts on Wall Street are optimistic about these three stocks for the long term, citing their potential for growth and stability.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/wall-street-analysts-bullish-on-top-3-stocks</loc>
    <lastmod>2026-11-11T16:29:38.567Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/top-wall-street-analysts-are-bullish-on-the-growth-potential-of-these-3-40ca9076.jpg</image:loc>
      <image:title>A group of top analysts from Wall Street are optimistic about the growth prospects of three stocks.</image:title>
      <image:caption>Top analysts on Wall Street are predicting strong growth for these three stocks, citing their potential for long-term success.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/equity-dispersion-trade-blowup-risk-warns-hedge-fund-ceo</loc>
    <lastmod>2026-11-11T01:24:08.177Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/equity-dispersion-trade-risks-a-blowup-hedge-fund-ceo-warns-bloomberg-co-a4df7508.jpg</image:loc>
      <image:title>A graph illustrating the risks of an equity dispersion trade, with a red arrow indicating potential losses and a warning sign in the background.</image:title>
      <image:caption>A hedge fund CEO warns of the risks of an equity dispersion trade, which could lead to significant losses for investors.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/traders-bet-on-anthropic-ipo-pop</loc>
    <lastmod>2026-11-11T01:22:39.982Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/traders-bet-on-a-pop-for-anthropic-s-historic-ipo-ebb0a1ff.jpg</image:loc>
      <image:title>A graph showing a stock price increasing, with traders in the background monitoring screens displaying financial data.</image:title>
      <image:caption>Traders are placing bets on a potential pop in Anthropic&apos;s historic IPO, as investors weigh the company&apos;s prospects in the market.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/nvidia-trade-details-options-traders-target-new-highs</loc>
    <lastmod>2026-11-11T01:22:17.975Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/a-massive-trade-in-nvidia-just-went-off-here-are-the-details-9c72af96.jpg</image:loc>
      <image:title>An image of a stock market graph with a significant spike, indicating a major trade, set against a background of financial news headlines and a faint image of a computer chip.</image:title>
      <image:caption>A massive trade in Nvidia has sent shockwaves through the market, with investors scrambling to understand the implications of the sudden move.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/cftc-warns-kalshi-over-contract-notification</loc>
    <lastmod>2026-11-11T00:16:29.041Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/cftc-warns-kalshi-of-imminent-charges-over-notification-of-contracts-pol-1cc58607.jpg</image:loc>
      <image:title>A close-up of a warning sign with a clock ticking in the background, symbolizing impending charges.</image:title>
      <image:caption>The U.S. Commodity Futures Trading Commission has issued a warning to Kalshi, citing potential charges over notification of contracts.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/crypto-liquidations-surpass-1-billion-amid-bitcoin-downturn</loc>
    <lastmod>2026-11-07T21:34:17.433Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/crypto-liquidations-top-1-billion-as-bitcoin-tests-11-week-low-9f349908.jpg</image:loc>
      <image:title>A graph showing a sharp decline in cryptocurrency market value, with a focus on Bitcoin&apos;s price drop, reaching an 11-week low.</image:title>
      <image:caption>Crypto liquidations have surpassed $1 billion as Bitcoin&apos;s price tests an 11-week low, sparking concerns among investors.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/bitcoin-holds-amid-ai-regulation-fears</loc>
    <lastmod>2026-11-07T16:40:13.498Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/bitcoin-holds-75k-as-ai-regulation-fears-see-kospi-halted-after-8-crash-e8557943.jpg</image:loc>
      <image:title>Editorial financial chart and market structure illustration representing Bitcoin holds $75K as AI regulation fears see KOSPI halted after 8% crash (Bitcoin, KOSPI, US)</image:title>
      <image:caption>VolSurface Desk editorial visual: Bitcoin holds $75K as AI regulation fears see KOSPI halted after 8% crash (Bitcoin, KOSPI, US).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/us-tech-stock-rout-is-the-ai-bubble-bursting</loc>
    <lastmod>2026-11-07T16:39:31.593Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/us-tech-stock-rout-is-the-ai-bubble-bursting-f8f024b4.jpg</image:loc>
      <image:title>A graph showing a sharp decline in a stock market index, with a red arrow pointing downwards, set against a backdrop of a cityscape with a prominent Wall Street sign, symbolizing the US tech stock rout.</image:title>
      <image:caption>The US tech stock market has experienced a significant rout, with some investors warning that the AI bubble may be bursting, sending shockwaves through Wall Street and prompting a sharp decline in stock prices.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vol-surface-desk-2026-regulated-institutions-6d-compliance-benchmark</loc>
    <lastmod>2026-11-07T12:10:06.691Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vol-surface-desk-2026-regulated-institutions-6d-compliance-benchmark-vmw6d2s4h.png</image:loc>
      <image:title>Listed Options, Futures &amp; Volatility Derivatives Venues 2026 Licensing Benchmark: 6D Prudential Scorecard Across 72 Audited Entities — VolSurface Desk 2026 empirical benchmark figure</image:title>
      <image:caption>VolSurface Desk institutional research pillar: 2026 Listed Options, Futures &amp; Volatility Derivatives Venues: Regulated Licence Benchmark</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=VolSurface+Desk%3A+2026+6D+Prudential+Benchmark+Architecture&amp;subtitle=Universe%3A+72+Entities+%7C+48+Authorities+%7C+Sample+Mean+4.52%2F10&amp;steps=Licence+Authenticity%3A%3ACross-check+FRN%2FCRD%2FMSB+certificate+%26+domain%7CEntity+Ring-Fencing%3A%3ASeparate+Tier-1+onshore+vs+offshore+subsidiaries%7CRisk+Telemetry%3A%3AWeight+enforcement+notices+%26+withdrawal+dockets%7C6D+Composite+Index%3A%3APublish+reproducible+0-10+compliance+scorecard&amp;metrics=Audited+Entities%3A%3A72%3A%3AActive+coverage+slice%7CSupervisory+Bodies%3A%3A48%3A%3AOfficial+registers%7CSample+Mean+Score%3A%3A4.52%2F10%3A%3A6D+weighted+mean%7CTop+Cohort+Leader%3A%3A9.3%2F10%3A%3ASCDEX</image:loc>
      <image:title>VolSurface Desk 2026 6D Compliance Benchmark Diagram</image:title>
      <image:caption>Listed Options, Futures &amp; Volatility Derivatives Venues 2026 Licensing Benchmark: 6D Prudential Scorecard Across 72 Audited Entities — VolSurface Desk 2026 6D Compliance Benchmark Diagram (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vol-surface-desk-supervisory-register-lookup-clone-firm-forensics-playbook</loc>
    <lastmod>2026-11-07T12:10:07.640Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vol-surface-desk-supervisory-register-lookup-clone-firm-forensics-playbook-vmw6d2suv.png</image:loc>
      <image:title>How to Verify Listed Options, Futures &amp; Volatility Derivatives Venues Licences &amp; Detect Clone Firms: 2026 Supervisory Lookup Playbook — VolSurface Desk 2026 empirical benchmark figure</image:title>
      <image:caption>VolSurface Desk institutional research pillar: Verify Listed Options, Futures &amp; Volatility Derivatives Venues Licences &amp; Clone Alerts (2026)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=VolSurface+Desk%3A+Four-Gate+Clone-Firm+%26+Domain+Forensics+Protocol&amp;subtitle=Covering+48+Competent+Authorities+%26+72+Audited+Institutions&amp;steps=Gate+1%3A+Certificate+Lookup%3A%3AQuery+official+regulator+portal+directly%7CGate+2%3A+Domain+Exact-Match%3A%3ACompare+approved+URL+character-by-character%7CGate+3%3A+Warning+Cross-Check%3A%3AScan+FCA%2FIOSCO+clone+%26+unauthorised+lists%7CGate+4%3A+Oracle+Attestation%3A%3AVerify+SHA-256+record+via+%2Fapi%2Fv1%2Fverify&amp;metrics=Tracked+Regulators%3A%3A48%3A%3ADirect+register+links%7CAudited+Entities%3A%3A72%3A%3AActive+coverage+slice%7CCohort+B+Audited%3A%3A10%3A%3AVerified+domain+bindings%7COracle+Latency%3A%3A%3C+50ms%3A%3AReal-time+JSON%2FMCP+API</image:loc>
      <image:title>VolSurface Desk Clone-Firm Detection &amp; Register Verification Protocol</image:title>
      <image:caption>How to Verify Listed Options, Futures &amp; Volatility Derivatives Venues Licences &amp; Detect Clone Firms: 2026 Supervisory Lookup Playbook — VolSurface Desk Clone-Firm Detection &amp; Register Verification Protocol (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vol-surface-desk-investor-compensation-segregation-counterparty-risk-matrix-2026</loc>
    <lastmod>2026-11-07T12:10:08.590Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vol-surface-desk-investor-compensation-segregation-counterparty-risk-matrix-2026-vmw6d2tl9.png</image:loc>
      <image:title>Investor Compensation Ceilings, Client-Money Segregation &amp; Counterparty Risk Matrix in Listed Options, Futures &amp; Volatility Derivatives Venues (2026) — VolSurface Desk 2026 empirical benchmark figure</image:title>
      <image:caption>VolSurface Desk institutional research pillar: Listed Options, Futures &amp; Volatility Derivatives Venues: 2026 Solvency &amp; Protection Matrix</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=VolSurface+Desk%3A+Statutory+Protection+%26+Client-Asset+Ring-Fencing+Tiers&amp;subtitle=Cross-Jurisdictional+Insolvency+Backstops+%26+Prudential+Segregation+Controls+%282026%29&amp;steps=Tier-1+Statutory+Backstop%3A%3AFSCS+%C2%A385k+%2F+SIPC+%24500k+%2F+CIPF+C%241M+%2F+ICF+%E2%82%AC20k%7CDaily+Trust+Reconciliation%3A%3ACASS+7+%2F+SEC+15c3-3+%2F+MiFID+segregated+accounts%7CNegative+Balance+%26+Margin%3A%3AAutomated+close-out+%26+retail+leverage+ceilings%7CCounterparty+Solvency+Audit%3A%3AContinuous+6D+risk+%26+complaint+telemetry&amp;metrics=UK+FSCS+Ceiling%3A%3A%C2%A385%2C000%3A%3APer+eligible+person%2Ffirm%7CUS+SIPC+Ceiling%3A%3A%24500%2C000%3A%3AIncl.+%24250k+cash+limit%7CEU+MiFID+ICF%3A%3A%E2%82%AC20%2C000%3A%3AHarmonised+EEA+floor%7CCohort+C+Audited%3A%3A10%3A%3AMulti-factor+risk+matrix</image:loc>
      <image:title>VolSurface Desk Statutory Investor Protection &amp; Segregation Matrix</image:title>
      <image:caption>Investor Compensation Ceilings, Client-Money Segregation &amp; Counterparty Risk Matrix in Listed Options, Futures &amp; Volatility Derivatives Venues (2026) — VolSurface Desk Statutory Investor Protection &amp; Segregation Matrix (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/btc-eth-options-vol-surface-skew-inversion-during-binance-6-3b-breach</loc>
    <lastmod>2026-10-30T13:50:40.278Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/btc-eth-options-vol-surface-skew-inversion-during-binance-6-3b-breach.png</image:loc>
      <image:title>BTC &amp; ETH Options Volatility Surface Spike and 25-Delta Put Skew Inversion During the $6.3B Exchange Exploit — VolSurface Desk institutional chart and forensic breakdown</image:title>
      <image:caption>VolSurface Desk forensic analysis: $6.3B Binance hot-wallet breach, $3B on-chain stablecoin freezes, and SAFU indemnification.</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/svi-stochastic-volatility-inspired-surface-no-arbitrage-butterfly-calendar-bounds-2026</loc>
    <lastmod>2026-10-27T03:31:06.130Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/svi-stochastic-volatility-inspired-surface-no-arbitrage-butterfly-calendar-bounds-2026.jpg</image:loc>
      <image:title>Gatheral SVI &amp; SSVI Volatility Surface Parameterization Eliminating Butterfly and Calendar Spread Arbitr... — Volatility &amp; Options &amp; volatility-surface, SVI, butterfly-arbitrage institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Gatheral SVI &amp; SSVI Volatility Surface Parameterization Eliminating Butterfly and Calendar Spr... (Volatility &amp; Options Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=SSVI%20Implied%20Variance%20Surface%20Calibration%20%26%20Durrleman%20No-Arbitrage%20Condition&amp;subtitle=Vol%20Surface%20Desk%20Sunday%20Desk%20Note%20%2825%20Oct%202026%29%20%7C%20Butterfly%20Density%20Positivity%20%24g%28k%29%20%5Cge%200%24%20%26%20Roger%20Lee%20Wing%20Moment%20Bounds&amp;badge=25%20OCT%202026&amp;steps=Ingest%20Primary%2025%20Oct%202026%20Releases%7CReconcile%20SSVI%20Implied%20Variance%20Surface%20Calibration%20%26%20Durrleman%20No-Arbitrage%20Condition%7CExecute%20Quantitative%20Stress%20Model%7CPublish%20Vol%20Surface%20Desk%20Audit%20Log&amp;metrics=Filing%20Date%3A25%20Oct%202026%7CStress%20Multiplier%3A1.45x%7CReconciliation%3AT%2B0%20Verified%7CDesk%20Confidence%3ATier-1%20Primary&amp;source=Vol%20Surface%20Desk%20Institutional%20Research%20Desk%20%2825%20October%202026%29</image:loc>
      <image:title>SSVI Implied Variance Surface Calibration &amp; Durrleman No-Arbitrage Condition</image:title>
      <image:caption>Gatheral SVI &amp; SSVI Volatility Surface Parameterization: Eliminating Butterfly and Calendar Spread Arbitrage (25 Oct 2026) — SSVI Implied Variance Surface Calibration &amp; Durrleman No-Arbitrage Condition (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/fomc-event-variance-extraction-straddle-weights-and-vanna-charm-hedging-2026</loc>
    <lastmod>2026-10-27T03:30:55.916Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/fomc-event-variance-extraction-straddle-weights-and-vanna-charm-hedging-2026.jpg</image:loc>
      <image:title>Extracting FOMC Event Variance From Term-Structure Kinks &amp; Dealer Vanna/Charm Pinning Flows (25 Oct 2026) — Volatility &amp; Options &amp; FOMC-volatility, event-variance, vanna institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Extracting FOMC Event Variance From Term-Structure Kinks &amp; Dealer Vanna/Charm Pinning Flows (2... (Volatility &amp; Options Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=FOMC%20Single-Day%20Event%20Variance%20Extraction%20%26%20Post-Event%20Dealer%20Vanna%2FCharm%20Flows&amp;subtitle=Vol%20Surface%20Desk%20Sunday%20Desk%20Note%20%2825%20Oct%202026%29%20%7C%20Forward%20Variance%20Decomposition%20%26%20Implied%20Breakeven%20Straddle%20Pricing&amp;badge=25%20OCT%202026&amp;steps=Ingest%20Primary%2025%20Oct%202026%20Releases%7CReconcile%20FOMC%20Single-Day%20Event%20Variance%20Extraction%20%26%20Post-Event%20Dealer%20Vanna%2FCharm%20Flows%7CExecute%20Quantitative%20Stress%20Model%7CPublish%20Vol%20Surface%20Desk%20Audit%20Log&amp;metrics=Filing%20Date%3A25%20Oct%202026%7CStress%20Multiplier%3A1.45x%7CReconciliation%3AT%2B0%20Verified%7CDesk%20Confidence%3ATier-1%20Primary&amp;source=Vol%20Surface%20Desk%20Institutional%20Research%20Desk%20%2825%20October%202026%29</image:loc>
      <image:title>FOMC Single-Day Event Variance Extraction &amp; Post-Event Dealer Vanna/Charm Flows</image:title>
      <image:caption>Extracting FOMC Event Variance From Term-Structure Kinks &amp; Dealer Vanna/Charm Pinning Flows (25 Oct 2026) — FOMC Single-Day Event Variance Extraction &amp; Post-Event Dealer Vanna/Charm Flows (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/october-2026-vix-spx-20x-ratio-negative-gamma-feedback-vix1d-0dte-dispersion-unwind</loc>
    <lastmod>2026-10-27T03:31:11.499Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/october-2026-vix-spx-20x-ratio-negative-gamma-feedback-vix1d-0dte-dispersion-unwind.jpg</image:loc>
      <image:title>The October 2026 Volatility Surface Dislocation VIX/SPX 20x Convexity Squeeze, VIX1D Surges Above 23, De... — Options Greeks, Volatility Surface... &amp; VIX/SPX 20x Ratio, VIX1D Spike, Dealer Negat... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · The October 2026 Volatility Surface Dislocation VIX/SPX 20x Convexity Squeeze, VIX1D Surges Ab... (Options Greeks, Volatility Surfaces &amp; Quantitative Dispersion Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=VIX%20Call%20Dealer%20Negative-Gamma%20Loop%20%26%20VIX1D%20%3E%2023%20Inversion&amp;subtitle=October%202026%2020x%20VIX-to-SPX%20Convexity%20Squeeze%2C%20VVIX%20Acceleration%20%26%20Front-End%20Backwardation&amp;badge=EXHIBIT%2001&amp;steps=SPX%20-1.21%25%20%26%20NDX%20-2.62%25%20Drawdown|0DTE%205850%20Put%20Wall%20Gamma%20Breach|Dealer%20Short%20VIX%20Call%20Vomma%20Hedge|VIX1D%2023.45%20%26%20Dispersion%20Stop-Out&amp;metrics=VIX%20to%20SPX%20Realized%20Beta:19.98x%20%28vs%204.65x%20Historical%20Mean%29|VIX1D%20Intraday%20Peak%20Level:23.45%20%28%2B64.79%25%20Single-Session%20Jump%29|VVIX%20Vol-of-Vol%20Terminal%20Print:124.80%20%2898th%20Percentile%20Regime%29|VIX1D%20vs%2030D%20VIX%20Inversion:%2B3.49%20vol%20pts%20%281.175x%20Ratio%29&amp;source=Cboe%20Global%20Markets%20%2F%20OPRA%20Multicast%20Telemetry%20%2F%20VolSurface%20Desk%20Oct%202026</image:loc>
      <image:title>Exhibit 1: VIX Call Dealer Negative-Gamma Feedback Loop &amp; VIX1D &gt; 23 Front-End Term Structure Inversion</image:title>
      <image:caption>The October 2026 Volatility Surface Dislocation: VIX/SPX 20x Convexity Squeeze, VIX1D Surges Above 23, Dealer Negative Gamma, and Single-Stock Dispersion Unwinds — Exhibit 1: VIX Call Dealer Negative-Gamma Feedback Loop &amp; VIX1D &gt; 23 Front-End Term Structure Inversion (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=SPX%200DTE%20Gamma%20Flip%2C%2025-Delta%20Skew%20%26%20Implied%20Correlation%20Shock&amp;subtitle=Dealer%20GEX%20Regime%20Transition%20Across%20Strike%20Walls%20%26%20Single-Stock%20Dispersion%20P%26L%20Drawdown&amp;badge=EXHIBIT%2002&amp;steps=SPX%205865%20Gamma-Neutral%20Flip|5850%20%26%205825%200DTE%20Put%20Wall%20Break|25-Delta%20Put%20Skew%20%2B6.92%20Vol%20Pts|COR1M%20%2B16.4%20Pt%20Dispersion%20Squeeze&amp;metrics=Dealer%20GEX%20Below%205825%20Strike:-%245.42B%20per%201%25%20SPX%20Move|0DTE%20Share%20of%20SPX%20Volume:56.8%25%20%282.14M%20Contracts%20Traded%29|SPX%2030D%2025-Delta%20Put-Call%20Skew:%2B6.92%20Vol%20Pts%20%2899th%20Percentile%29|Dispersion%20Book%20Mark-to-Market:-4.85%25%20NAV%20Intraday%20Drawdown&amp;source=OCC%20Options%20Telemetry%20%2F%20CME%20E-Mini%20Order%20Book%20%2F%20VolSurface%20Desk%20Oct%202026</image:loc>
      <image:title>Exhibit 2: SPX 0DTE Gamma Exposure Flip Point, 25-Delta Put Skew Steepening &amp; Implied Correlation Jump</image:title>
      <image:caption>The October 2026 Volatility Surface Dislocation: VIX/SPX 20x Convexity Squeeze, VIX1D Surges Above 23, Dealer Negative Gamma, and Single-Stock Dispersion Unwinds — Exhibit 2: SPX 0DTE Gamma Exposure Flip Point, 25-Delta Put Skew Steepening &amp; Implied Correlation Jump (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/svi-volatility-surface-arbitrage-free-calibration-0dte-gamma-vanna-dispersion-2026</loc>
    <lastmod>2026-10-27T03:01:16.692Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/svi-volatility-surface-arbitrage-free-calibration-0dte-gamma-vanna-dispersion-2026.jpg</image:loc>
      <image:title>Arbitrage-Free SVI Volatility Surface Calibration, 0DTE Intraday Gamma-Vanna-Charm Flows, and Index Disp... — Volatility Surface &amp; Derivatives D... &amp; SVI Volatility Surface, 0DTE Options Gamma,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Arbitrage-Free SVI Volatility Surface Calibration, 0DTE Intraday Gamma-Vanna-Charm Flows, and... (Volatility Surface &amp; Derivatives Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=SVI%20Implied%20Volatility%20Surface%20%26%200DTE%20Dealer%20Hedging%20Engine&amp;subtitle=Gatheral%20SSVI%20No-Arbitrage%20Calibration%2C%20Vanna%2FCharm%20Rebalancing%20%26%20OCC%20STANS%20Margin&amp;badge=EXHIBIT%2001&amp;steps=Raw%20OPRA%20Quote%20Filtering|SSVI%20Butterfly%20%26%20Calendar%20Gate|Dealer%20Gamma%2FVanna%2FCharm%20Vector|OCC%20STANS%2010k-Scenario%20VaR&amp;metrics=SPX%200DTE%20Volume%20Share:51.4%25%20of%20Total%20SPX%20ADV|Roger%20Lee%20Wing%20Slope%20Bound:%7Cdw%2Fdk%7C%20%3C%3D%202.0%20Asymptote|OCC%20STANS%20Margin%20Offset:68%25%20to%2078%25%20vs%20Reg-T|Dispersion%20Implied%20Corr%20Spread:14.2%20pts%20%28COR3M%20vs%20Realized%29&amp;source=Cboe%20Global%20Markets%20%2F%20OCC%20STANS%20%2F%20CFTC%202026</image:loc>
      <image:title>Figure 1: SVI / SSVI Arbitrage-Free Implied Volatility Surface Calibration &amp; 0DTE Dealer Gamma Hedging Loop (2026)</image:title>
      <image:caption>Arbitrage-Free SVI Volatility Surface Calibration, 0DTE Intraday Gamma-Vanna-Charm Flows, and Index Dispersion Mechanics in 2026 — Figure 1: SVI / SSVI Arbitrage-Free Implied Volatility Surface Calibration &amp; 0DTE Dealer Gamma Hedging Loop (2026) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=0DTE%20Greek%20Decay%20Mechanics%20%26%20Index%20Dispersion%20Architecture&amp;subtitle=Intraday%20Gamma%2FVanna%2FCharm%20Rebalancing%20Vector%20vs%20Single-Stock%20Variance%20Replication&amp;badge=EXHIBIT%2002&amp;steps=09%3A30%20ET%200DTE%20Customer%20Overwrite|13%3A00%20ET%20Gamma%20Pin%20%26%20Charm%20Bleed|15%3A00%20ET%20Vanna-Gamma%20Cash%20Squeeze|16%3A00%20ET%20MOC%20%26%20Dispersion%20Reset&amp;metrics=Peak%20ATM%200DTE%20Gamma%20%2815%3A30%20ET%29:8.4x%20vs%2009%3A30%20ET%20Open|15%3A00-16%3A00%20ET%20Charm%20Flow:%2414.2B%20to%20%2419.8B%20ES%20Notional|VIX%20vs%20VIX1D%20Vol-of-Vol%20Ratio:3.45x%20Intraday%20Realized%20Beta|Top-50%20Dispersion%20Vega%20Efficiency:86.5%25%20Variance%20Capture&amp;source=Desk%20Quantitative%20Research%20%2F%20Cboe%20OPRA%20%2F%20CME%202026</image:loc>
      <image:title>Figure 2: SPX 0DTE Intraday Greek Decay Trajectory &amp; Index Dispersion Convexity Architecture</image:title>
      <image:caption>Arbitrage-Free SVI Volatility Surface Calibration, 0DTE Intraday Gamma-Vanna-Charm Flows, and Index Dispersion Mechanics in 2026 — Figure 2: SPX 0DTE Intraday Greek Decay Trajectory &amp; Index Dispersion Convexity Architecture (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vanna-charm-second-order-greeks-hedging-flows-spx-25-delta-skew-dealer-opex-pin-risk</loc>
    <lastmod>2026-10-27T03:31:16.601Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vanna-charm-second-order-greeks-hedging-flows-spx-25-delta-skew-dealer-opex-pin-risk.jpg</image:loc>
      <image:title>Vanna-Charm Second-Order Greeks Hedging Flows, S&amp;P 500 25-Delta Skew Term Structure &amp; Dealer OpEx Pin Ri... — Volatility Surface &amp; Dealer Flow M... &amp; Volatility Surface &amp; Dealer Flow Mechanics,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Vanna-Charm Second-Order Greeks Hedging Flows, S&amp;P 500 25-Delta Skew Term Structure &amp; Dealer O... (Volatility Surface &amp; Dealer Flow Mechanics Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Vanna-Charm%20Second-Order%20Greeks%20Hedging%20Flows%2C%20S%26P%20500%2025-Delta%20Skew%20Term%20Structure%20%26%20Dealer%20OpEx%20Pin%20Ri%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Volatility%20Surface%20%26%20Dealer%20Flow%20Mechanics%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=Volatility%20Surface%20%26%20De%E2%80%A6%20Intake%20%26%20Scope%3A%3AVanna%20%28%E2%88%82%CE%94%2F%E2%88%82%CF%83%29%20and%20Charm%20%28%E2%88%82%CE%94%2F%E2%88%82t%29%20govern%20deterministic%20dealer%20futures%20%7C2026%20Institutional%20Rese%E2%80%A6%20Verification%3A%3AS%26P%20500%2025-delta%20risk%20reversal%20skew%20%28%CF%83_25%CE%94P%20-%20%CF%83_25%CE%94C%29%20exhibits%20a%20ste%7CPrudential%20%26%20Risk%20Controls%3A%3AThe%20Dealer%20Gamma%20Flip%20threshold%20separates%20market%20microstructure%20into%7CInstitutional%20Execution%20%26%20Audit%3A%3AOpEx%20Pin%20Risk%20peaks%20as%20time-to-maturity%20approaches%20zero%20%28%CF%84%20%E2%86%92%200%29%20and%20&amp;metrics=Volatility%20Surface%20%26%20De%E2%80%A6%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7C2026%20Institutional%20Rese%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CRisk%20%26%20Prudential%20Floor%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Vanna-Charm Second-Order Greeks Hedging Flows, S&amp;P 500 25-Delta Skew Term Structure &amp; Dealer OpEx Pin Ri... — Volatility Surface &amp; Dealer Flow Mechanics Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Vanna-Charm Second-Order Greeks Hedging Flows, S&amp;P 500 25-Delta Skew Term Structure &amp; Dealer OpEx Pin Risk Mechanics (2026 Quantitative Desk Manual) — Figure 1: Vanna-Charm Second-Order Greeks Hedging Flows, S&amp;P 500 25-Delta Skew Term Structure &amp; Dealer OpEx Pin Ri... — Volatility Surface &amp; Dealer Flow Mechanics Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/spx-0dte-gamma-exposure-gex-vanna-charm-occ-stans-margin</loc>
    <lastmod>2026-10-22T08:04:12.739Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/spx-0dte-gamma-exposure-gex-vanna-charm-occ-stans-margin.jpg</image:loc>
      <image:title>SPX 0DTE Gamma Exposure (GEX), Vanna &amp; Charm Hedging Ratios, and OCC STANS Intraday Margin Framework — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · SPX 0DTE Gamma Exposure (GEX), Vanna &amp; Charm Hedging Ratios, and OCC STANS Intraday Margin Fra... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=SPX%200DTE%20Gamma%20Exposure%20%28GEX%29%2C%20Vanna%20%26%20Charm%20Hedging%20Ratios%2C%20and%20OCC%20STANS%20Intraday%20Margin%20Framework&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AZero-days-to-expiration%20%280DTE%29%20contracts%20represent%2059%25%20of%20total%20SPX%20%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ADealer%20Gamma%20Exposure%20%28GEX%29%20measures%20the%20exact%20S%26P%20500%20notional%20%28%2410%7CVIX%20Risk%20Controls%3A%3AThe%20Options%20Clearing%20Corporation%20%28OCC%29%20evaluates%20clearing%20member%20por%7CInstitutional%20Execution%20%26%20Audit%3A%3AVanna%20and%20Charm%20govern%20cross-derivative%20delta%20drift%20across%20implied%20v&amp;metrics=vol-surface-desk%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVIX%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: SPX 0DTE Gamma Exposure (GEX), Vanna &amp; Charm Hedging Ratios, and OCC STANS Intraday Margin Framework — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>SPX 0DTE Gamma Exposure (GEX), Vanna &amp; Charm Hedging Ratios, and OCC STANS Intraday Margin Framework — Figure 1: SPX 0DTE Gamma Exposure (GEX), Vanna &amp; Charm Hedging Ratios, and OCC STANS Intraday Margin Framework — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/spx-0dte-gex-dealer-gamma-hedging-and-es-futures-impact</loc>
    <lastmod>2026-10-22T08:14:17.363Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/spx-0dte-gex-dealer-gamma-hedging-and-es-futures-impact.jpg</image:loc>
      <image:title>Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) Dealer Delta/Gamma Hedging Equati... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) Dealer Delta/Gamma Hedg... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%20SPX%200DTE%20Options%20Volume%20%2859%25%20Share%29%20%26%20Dealer%20Gamma%20Exposure%20%28GEX%29%20Dealer%20Delta%2FGamma%20Hedging%20Equati%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%20SPX%200DTE%20Options%20Volume%20%2859%25%20Share%29%20%26%20Dealer%20Gamma%20Exposure%20%28GE%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Vanna%20%28dDelta%2FdVol%29%20%26%20Charm%20%28dDelta%7CSPX-0DTE-GEX%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20OCC%20STANS%2020-Minute%20In%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A20%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSPX-0DTE-GEX%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) Dealer Delta/Gamma Hedging Equati... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX): Dealer Delta/Gamma Hedging Equations &amp; E-Mini S&amp;P 500 Futures Impact (59.0% Share of SPX Options Volume Benchmark) — Figure 1: Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) Dealer Delta/Gamma Hedging Equati... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/spx-0dte-gex-partial-derivative-formulas-and-surface-grid</loc>
    <lastmod>2026-11-05T14:34:35.359Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/spx-0dte-gex-partial-derivative-formulas-and-surface-grid.jpg</image:loc>
      <image:title>Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) Partial Derivative Formulas, Scal... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) Partial Derivative Form... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%20SPX%200DTE%20Options%20Volume%20%2859%25%20Share%29%20%26%20Dealer%20Gamma%20Exposure%20%28GEX%29%20Partial%20Derivative%20Formulas%2C%20Scal%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%20SPX%200DTE%20Options%20Volume%20%2859%25%20Share%29%20%26%20Dealer%20Gamma%20Exposure%20%28GE%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Vanna%20%28dDelta%2FdVol%29%20%26%20Charm%20%28dDelta%7CSPX-0DTE-GEX%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20OCC%20STANS%2020-Minute%20In%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A20%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSPX-0DTE-GEX%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) Partial Derivative Formulas, Scal... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX): Partial Derivative Formulas, Scaling Units &amp; Tenor Surface Grid (59.0% Share of SPX Options Volume Benchmark) — Figure 1: Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) Partial Derivative Formulas, Scal... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/spx-0dte-gex-fomc-and-cpi-event-volatility-crush-math</loc>
    <lastmod>2026-11-05T14:34:35.361Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/spx-0dte-gex-fomc-and-cpi-event-volatility-crush-math.jpg</image:loc>
      <image:title>Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) FOMC &amp; CPI Event Volatility Crush... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) FOMC &amp; CPI Event Volati... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%20SPX%200DTE%20Options%20Volume%20%2859%25%20Share%29%20%26%20Dealer%20Gamma%20Exposure%20%28GEX%29%20FOMC%20%26%20CPI%20Event%20Volatility%20Crush%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%20SPX%200DTE%20Options%20Volume%20%2859%25%20Share%29%20%26%20Dealer%20Gamma%20Exposure%20%28GE%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Vanna%20%28dDelta%2FdVol%29%20%26%20Charm%20%28dDelta%7CSPX-0DTE-GEX%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20OCC%20STANS%2020-Minute%20In%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A20%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSPX-0DTE-GEX%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) FOMC &amp; CPI Event Volatility Crush... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX): FOMC &amp; CPI Event Volatility Crush &amp; Forward Variance Decomposition (59.0% Share of SPX Options Volume Benchmark) — Figure 1: Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) FOMC &amp; CPI Event Volatility Crush... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/spx-0dte-gex-contango-roll-drag-and-term-structure-carry</loc>
    <lastmod>2026-11-05T14:34:35.363Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/spx-0dte-gex-contango-roll-drag-and-term-structure-carry.jpg</image:loc>
      <image:title>Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) Constant-Maturity Contango Roll D... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) Constant-Maturity Conta... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%20SPX%200DTE%20Options%20Volume%20%2859%25%20Share%29%20%26%20Dealer%20Gamma%20Exposure%20%28GEX%29%20Constant-Maturity%20Contango%20Roll%20D%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%20SPX%200DTE%20Options%20Volume%20%2859%25%20Share%29%20%26%20Dealer%20Gamma%20Exposure%20%28GE%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Vanna%20%28dDelta%2FdVol%29%20%26%20Charm%20%28dDelta%7CSPX-0DTE-GEX%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20OCC%20STANS%2020-Minute%20In%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A20%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSPX-0DTE-GEX%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) Constant-Maturity Contango Roll D... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX): Constant-Maturity Contango Roll Drag &amp; Backwardation Flip Triggers (59.0% Share of SPX Options Volume Benchmark) — Figure 1: Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) Constant-Maturity Contango Roll D... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/spx-0dte-gex-clearing-margin-monte-carlo-stress-scenarios</loc>
    <lastmod>2026-11-05T14:34:35.365Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/spx-0dte-gex-clearing-margin-monte-carlo-stress-scenarios.jpg</image:loc>
      <image:title>Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) Clearinghouse Margin Monte Carlo... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) Clearinghouse Margin Mo... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%20SPX%200DTE%20Options%20Volume%20%2859%25%20Share%29%20%26%20Dealer%20Gamma%20Exposure%20%28GEX%29%20Clearinghouse%20Margin%20Monte%20Carlo%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%20SPX%200DTE%20Options%20Volume%20%2859%25%20Share%29%20%26%20Dealer%20Gamma%20Exposure%20%28GE%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Vanna%20%28dDelta%2FdVol%29%20%26%20Charm%20%28dDelta%7CSPX-0DTE-GEX%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20OCC%20STANS%2020-Minute%20In%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A20%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSPX-0DTE-GEX%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) Clearinghouse Margin Monte Carlo... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX): Clearinghouse Margin Monte Carlo Scenarios &amp; Intraday Call Triggers (59.0% Share of SPX Options Volume Benchmark) — Figure 1: Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) Clearinghouse Margin Monte Carlo... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/spx-0dte-gex-strike-skew-convexity-and-butterfly-arbitrage</loc>
    <lastmod>2026-11-05T14:34:35.367Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/spx-0dte-gex-strike-skew-convexity-and-butterfly-arbitrage.jpg</image:loc>
      <image:title>Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) 25-Delta Strike Skew, Put Wing Co... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) 25-Delta Strike Skew, P... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%20SPX%200DTE%20Options%20Volume%20%2859%25%20Share%29%20%26%20Dealer%20Gamma%20Exposure%20%28GEX%29%2025-Delta%20Strike%20Skew%2C%20Put%20Wing%20Co%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%20SPX%200DTE%20Options%20Volume%20%2859%25%20Share%29%20%26%20Dealer%20Gamma%20Exposure%20%28GE%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Vanna%20%28dDelta%2FdVol%29%20%26%20Charm%20%28dDelta%7CSPX-0DTE-GEX%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20OCC%20STANS%2020-Minute%20In%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A20%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSPX-0DTE-GEX%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) 25-Delta Strike Skew, Put Wing Co... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX): 25-Delta Strike Skew, Put Wing Convexity &amp; No-Arbitrage Bounds (59.0% Share of SPX Options Volume Benchmark) — Figure 1: Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) 25-Delta Strike Skew, Put Wing Co... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/spx-0dte-gex-dispersion-correlation-unwind-stress-audit</loc>
    <lastmod>2026-11-05T14:34:35.369Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/spx-0dte-gex-dispersion-correlation-unwind-stress-audit.jpg</image:loc>
      <image:title>Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) Correlation Spike Stress Audit &amp;... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) Correlation Spike Stres... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%20SPX%200DTE%20Options%20Volume%20%2859%25%20Share%29%20%26%20Dealer%20Gamma%20Exposure%20%28GEX%29%20Correlation%20Spike%20Stress%20Audit%20%26%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%20SPX%200DTE%20Options%20Volume%20%2859%25%20Share%29%20%26%20Dealer%20Gamma%20Exposure%20%28GE%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Vanna%20%28dDelta%2FdVol%29%20%26%20Charm%20%28dDelta%7CSPX-0DTE-GEX%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20OCC%20STANS%2020-Minute%20In%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A20%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSPX-0DTE-GEX%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) Correlation Spike Stress Audit &amp;... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX): Correlation Spike Stress Audit &amp; Institutional Dispersion Unwinds (59.0% Share of SPX Options Volume Benchmark) — Figure 1: Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) Correlation Spike Stress Audit &amp;... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/spx-0dte-gex-350pm-moc-imbalance-and-cash-close-pinning</loc>
    <lastmod>2026-11-05T14:34:35.371Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/spx-0dte-gex-350pm-moc-imbalance-and-cash-close-pinning.jpg</image:loc>
      <image:title>Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) 3 50 PM ET Market-on-Close (MOC)... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) 3 50 PM ET Market-on-Cl... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%20SPX%200DTE%20Options%20Volume%20%2859%25%20Share%29%20%26%20Dealer%20Gamma%20Exposure%20%28GEX%29%203%2050%20PM%20ET%20Market-on-Close%20%28MOC%29%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%20SPX%200DTE%20Options%20Volume%20%2859%25%20Share%29%20%26%20Dealer%20Gamma%20Exposure%20%28GE%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Vanna%20%28dDelta%2FdVol%29%20%26%20Charm%20%28dDelta%7CSPX-0DTE-GEX%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20OCC%20STANS%2020-Minute%20In%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A20%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSPX-0DTE-GEX%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) 3 50 PM ET Market-on-Close (MOC)... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX): 3:50 PM ET Market-on-Close (MOC) Imbalance &amp; 4:00 PM Cash Settlement (59.0% Share of SPX Options Volume Benchmark) — Figure 1: Cboe SPX 0DTE Options Volume (59% Share) &amp; Dealer Gamma Exposure (GEX) 3 50 PM ET Market-on-Close (MOC)... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vix-futures-term-structure-contango-backwardation-dispersion-skew</loc>
    <lastmod>2026-10-22T08:04:12.739Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vix-futures-term-structure-contango-backwardation-dispersion-skew.jpg</image:loc>
      <image:title>VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation), VIX1D Benchmarks &amp; Index Dispersion Mec... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation), VIX1D Benchmarks &amp; Index Disp... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=VIX%20Futures%20Term%20Structure%20%28VX1%2FVX2%20Contango%20vs.%20Backwardation%29%2C%20VIX1D%20Benchmarks%20%26%20Index%20Dispersion%20Mec%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AStandard%20Cboe%20Volatility%20Index%20%28VX%29%20futures%20carry%20a%20%241%2C000%20contract%20%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3AVIX%20futures%20trade%20in%20contango%20%28VX1%20%3C%20VX2%29%20during%20approximately%2080%25%20o%7CVIX%20Risk%20Controls%3A%3AThe%20Cboe%201-Day%20Volatility%20Index%20%28VIX1D%29%20measures%201-day%20expected%20vola%7CInstitutional%20Execution%20%26%20Audit%3A%3AVolatility%20dispersion%20trading%E2%80%94selling%20SPX%20index%20variance%20while%20buyin&amp;metrics=vol-surface-desk%3A%3A%241%2C000%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVIX%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation), VIX1D Benchmarks &amp; Index Dispersion Mec... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation), VIX1D Benchmarks &amp; Index Dispersion Mechanics — Figure 1: VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation), VIX1D Benchmarks &amp; Index Dispersion Mec... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vanna-charm-flows-dealer-gamma-hedging-and-es-futures-impact</loc>
    <lastmod>2026-10-22T08:14:17.363Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vanna-charm-flows-dealer-gamma-hedging-and-es-futures-impact.jpg</image:loc>
      <image:title>Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging Dealer Delta/Gamma Hedging Equati... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging Dealer Delta/Gamma Hedg... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Vanna%20%28dDelta%2FdVol%29%20%26%20Charm%20%28dDelta%2FdTime%29%20Second-Order%20Dealer%20Hedging%20Dealer%20Delta%2FGamma%20Hedging%20Equati%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AVanna%20%28dDelta%2FdVol%29%20%26%20Charm%20%28dDelta%2FdTime%29%20Second-Order%20Dealer%20Hedgi%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20OCC%20STANS%2020-Minute%20Intraday%20Risk%20S%7CVANNA-CHARM-FLOWS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%20VIX%20Futures%20Term%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A20%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVANNA-CHARM-FLOWS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging Dealer Delta/Gamma Hedging Equati... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging: Dealer Delta/Gamma Hedging Equations &amp; E-Mini S&amp;P 500 Futures Impact (6.5 hrs Intraday Cash Decay Window Benchmark) — Figure 1: Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging Dealer Delta/Gamma Hedging Equati... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vanna-charm-flows-partial-derivative-formulas-and-surface-grid</loc>
    <lastmod>2026-11-05T14:34:35.373Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vanna-charm-flows-partial-derivative-formulas-and-surface-grid.jpg</image:loc>
      <image:title>Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging Partial Derivative Formulas, Scal... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging Partial Derivative Form... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Vanna%20%28dDelta%2FdVol%29%20%26%20Charm%20%28dDelta%2FdTime%29%20Second-Order%20Dealer%20Hedging%20Partial%20Derivative%20Formulas%2C%20Scal%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AVanna%20%28dDelta%2FdVol%29%20%26%20Charm%20%28dDelta%2FdTime%29%20Second-Order%20Dealer%20Hedgi%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20OCC%20STANS%2020-Minute%20Intraday%20Risk%20S%7CVANNA-CHARM-FLOWS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%20VIX%20Futures%20Term%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A20%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVANNA-CHARM-FLOWS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging Partial Derivative Formulas, Scal... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging: Partial Derivative Formulas, Scaling Units &amp; Tenor Surface Grid (6.5 hrs Intraday Cash Decay Window Benchmark) — Figure 1: Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging Partial Derivative Formulas, Scal... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vanna-charm-flows-fomc-and-cpi-event-volatility-crush-math</loc>
    <lastmod>2026-11-05T14:34:35.376Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vanna-charm-flows-fomc-and-cpi-event-volatility-crush-math.jpg</image:loc>
      <image:title>Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging FOMC &amp; CPI Event Volatility Crush... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging FOMC &amp; CPI Event Volati... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Vanna%20%28dDelta%2FdVol%29%20%26%20Charm%20%28dDelta%2FdTime%29%20Second-Order%20Dealer%20Hedging%20FOMC%20%26%20CPI%20Event%20Volatility%20Crush%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AVanna%20%28dDelta%2FdVol%29%20%26%20Charm%20%28dDelta%2FdTime%29%20Second-Order%20Dealer%20Hedgi%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20OCC%20STANS%2020-Minute%20Intraday%20Risk%20S%7CVANNA-CHARM-FLOWS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%20VIX%20Futures%20Term%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A20%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVANNA-CHARM-FLOWS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging FOMC &amp; CPI Event Volatility Crush... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging: FOMC &amp; CPI Event Volatility Crush &amp; Forward Variance Decomposition (6.5 hrs Intraday Cash Decay Window Benchmark) — Figure 1: Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging FOMC &amp; CPI Event Volatility Crush... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vanna-charm-flows-contango-roll-drag-and-term-structure-carry</loc>
    <lastmod>2026-11-05T14:34:35.378Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vanna-charm-flows-contango-roll-drag-and-term-structure-carry.jpg</image:loc>
      <image:title>Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging Constant-Maturity Contango Roll D... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging Constant-Maturity Conta... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Vanna%20%28dDelta%2FdVol%29%20%26%20Charm%20%28dDelta%2FdTime%29%20Second-Order%20Dealer%20Hedging%20Constant-Maturity%20Contango%20Roll%20D%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AVanna%20%28dDelta%2FdVol%29%20%26%20Charm%20%28dDelta%2FdTime%29%20Second-Order%20Dealer%20Hedgi%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20OCC%20STANS%2020-Minute%20Intraday%20Risk%20S%7CVANNA-CHARM-FLOWS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%20VIX%20Futures%20Term%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A20%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVANNA-CHARM-FLOWS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging Constant-Maturity Contango Roll D... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging: Constant-Maturity Contango Roll Drag &amp; Backwardation Flip Triggers (6.5 hrs Intraday Cash Decay Window Benchmark) — Figure 1: Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging Constant-Maturity Contango Roll D... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vanna-charm-flows-clearing-margin-monte-carlo-stress-scenarios</loc>
    <lastmod>2026-11-05T14:34:35.380Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vanna-charm-flows-clearing-margin-monte-carlo-stress-scenarios.jpg</image:loc>
      <image:title>Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging Clearinghouse Margin Monte Carlo... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging Clearinghouse Margin Mo... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Vanna%20%28dDelta%2FdVol%29%20%26%20Charm%20%28dDelta%2FdTime%29%20Second-Order%20Dealer%20Hedging%20Clearinghouse%20Margin%20Monte%20Carlo%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AVanna%20%28dDelta%2FdVol%29%20%26%20Charm%20%28dDelta%2FdTime%29%20Second-Order%20Dealer%20Hedgi%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20OCC%20STANS%2020-Minute%20Intraday%20Risk%20S%7CVANNA-CHARM-FLOWS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%20VIX%20Futures%20Term%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A20%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVANNA-CHARM-FLOWS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging Clearinghouse Margin Monte Carlo... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging: Clearinghouse Margin Monte Carlo Scenarios &amp; Intraday Call Triggers (6.5 hrs Intraday Cash Decay Window Benchmark) — Figure 1: Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging Clearinghouse Margin Monte Carlo... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vanna-charm-flows-strike-skew-convexity-and-butterfly-arbitrage</loc>
    <lastmod>2026-11-05T14:34:35.382Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vanna-charm-flows-strike-skew-convexity-and-butterfly-arbitrage.jpg</image:loc>
      <image:title>Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging 25-Delta Strike Skew, Put Wing Co... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging 25-Delta Strike Skew, P... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Vanna%20%28dDelta%2FdVol%29%20%26%20Charm%20%28dDelta%2FdTime%29%20Second-Order%20Dealer%20Hedging%2025-Delta%20Strike%20Skew%2C%20Put%20Wing%20Co%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AVanna%20%28dDelta%2FdVol%29%20%26%20Charm%20%28dDelta%2FdTime%29%20Second-Order%20Dealer%20Hedgi%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20OCC%20STANS%2020-Minute%20Intraday%20Risk%20S%7CVANNA-CHARM-FLOWS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%20VIX%20Futures%20Term%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A20%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVANNA-CHARM-FLOWS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging 25-Delta Strike Skew, Put Wing Co... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging: 25-Delta Strike Skew, Put Wing Convexity &amp; No-Arbitrage Bounds (6.5 hrs Intraday Cash Decay Window Benchmark) — Figure 1: Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging 25-Delta Strike Skew, Put Wing Co... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vanna-charm-flows-dispersion-correlation-unwind-stress-audit</loc>
    <lastmod>2026-11-05T14:34:35.384Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vanna-charm-flows-dispersion-correlation-unwind-stress-audit.jpg</image:loc>
      <image:title>Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging Correlation Spike Stress Audit &amp;... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging Correlation Spike Stres... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Vanna%20%28dDelta%2FdVol%29%20%26%20Charm%20%28dDelta%2FdTime%29%20Second-Order%20Dealer%20Hedging%20Correlation%20Spike%20Stress%20Audit%20%26%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AVanna%20%28dDelta%2FdVol%29%20%26%20Charm%20%28dDelta%2FdTime%29%20Second-Order%20Dealer%20Hedgi%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20OCC%20STANS%2020-Minute%20Intraday%20Risk%20S%7CVANNA-CHARM-FLOWS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%20VIX%20Futures%20Term%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A20%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVANNA-CHARM-FLOWS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging Correlation Spike Stress Audit &amp;... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging: Correlation Spike Stress Audit &amp; Institutional Dispersion Unwinds (6.5 hrs Intraday Cash Decay Window Benchmark) — Figure 1: Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging Correlation Spike Stress Audit &amp;... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vanna-charm-flows-350pm-moc-imbalance-and-cash-close-pinning</loc>
    <lastmod>2026-11-05T14:34:35.386Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vanna-charm-flows-350pm-moc-imbalance-and-cash-close-pinning.jpg</image:loc>
      <image:title>Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging 3 50 PM ET Market-on-Close (MOC)... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging 3 50 PM ET Market-on-Cl... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Vanna%20%28dDelta%2FdVol%29%20%26%20Charm%20%28dDelta%2FdTime%29%20Second-Order%20Dealer%20Hedging%203%2050%20PM%20ET%20Market-on-Close%20%28MOC%29%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AVanna%20%28dDelta%2FdVol%29%20%26%20Charm%20%28dDelta%2FdTime%29%20Second-Order%20Dealer%20Hedgi%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20OCC%20STANS%2020-Minute%20Intraday%20Risk%20S%7CVANNA-CHARM-FLOWS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%20VIX%20Futures%20Term%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A20%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVANNA-CHARM-FLOWS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging 3 50 PM ET Market-on-Close (MOC)... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging: 3:50 PM ET Market-on-Close (MOC) Imbalance &amp; 4:00 PM Cash Settlement (6.5 hrs Intraday Cash Decay Window Benchmark) — Figure 1: Vanna (dDelta/dVol) &amp; Charm (dDelta/dTime) Second-Order Dealer Hedging 3 50 PM ET Market-on-Close (MOC)... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/occ-stans-margin-dealer-gamma-hedging-and-es-futures-impact</loc>
    <lastmod>2026-10-22T08:14:17.363Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/occ-stans-margin-dealer-gamma-hedging-and-es-futures-impact.jpg</image:loc>
      <image:title>OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On Dealer Delta/Gamma Hedging Equations &amp;... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On Dealer Delta/Gamma Hedging Eq... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=OCC%20STANS%2020-Minute%20Intraday%20Risk%20Snapshots%20%26%200DTE%20Margin%20Add-On%20Dealer%20Delta%2FGamma%20Hedging%20Equations%20%26%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AOCC%20STANS%2020-Minute%20Intraday%20Risk%20Snapshots%20%26%200DTE%20Margin%20Add-On%20%28OC%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%20VIX%20Futures%20Term%20Structure%20%28VX%7COCC-STANS-MARGIN%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%201-Day%20%28VIX1D%29%20%26%209%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A20%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7COCC-STANS-MARGIN%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On Dealer Delta/Gamma Hedging Equations &amp;... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On: Dealer Delta/Gamma Hedging Equations &amp; E-Mini S&amp;P 500 Futures Impact (20 min Intraday Monte Carlo Interval Benchmark) — Figure 1: OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On Dealer Delta/Gamma Hedging Equations &amp;... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/occ-stans-margin-partial-derivative-formulas-and-surface-grid</loc>
    <lastmod>2026-11-05T14:34:35.389Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/occ-stans-margin-partial-derivative-formulas-and-surface-grid.jpg</image:loc>
      <image:title>OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On Partial Derivative Formulas, Scaling Un... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On Partial Derivative Formulas,... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=OCC%20STANS%2020-Minute%20Intraday%20Risk%20Snapshots%20%26%200DTE%20Margin%20Add-On%20Partial%20Derivative%20Formulas%2C%20Scaling%20Un%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AOCC%20STANS%2020-Minute%20Intraday%20Risk%20Snapshots%20%26%200DTE%20Margin%20Add-On%20%28OC%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%20VIX%20Futures%20Term%20Structure%20%28VX%7COCC-STANS-MARGIN%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%201-Day%20%28VIX1D%29%20%26%209%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A20%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7COCC-STANS-MARGIN%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On Partial Derivative Formulas, Scaling Un... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On: Partial Derivative Formulas, Scaling Units &amp; Tenor Surface Grid (20 min Intraday Monte Carlo Interval Benchmark) — Figure 1: OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On Partial Derivative Formulas, Scaling Un... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/occ-stans-margin-fomc-and-cpi-event-volatility-crush-math</loc>
    <lastmod>2026-11-05T14:34:35.391Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/occ-stans-margin-fomc-and-cpi-event-volatility-crush-math.jpg</image:loc>
      <image:title>OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On FOMC &amp; CPI Event Volatility Crush &amp; For... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On FOMC &amp; CPI Event Volatility C... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=OCC%20STANS%2020-Minute%20Intraday%20Risk%20Snapshots%20%26%200DTE%20Margin%20Add-On%20FOMC%20%26%20CPI%20Event%20Volatility%20Crush%20%26%20For%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AOCC%20STANS%2020-Minute%20Intraday%20Risk%20Snapshots%20%26%200DTE%20Margin%20Add-On%20%28OC%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%20VIX%20Futures%20Term%20Structure%20%28VX%7COCC-STANS-MARGIN%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%201-Day%20%28VIX1D%29%20%26%209%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A20%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7COCC-STANS-MARGIN%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On FOMC &amp; CPI Event Volatility Crush &amp; For... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On: FOMC &amp; CPI Event Volatility Crush &amp; Forward Variance Decomposition (20 min Intraday Monte Carlo Interval Benchmark) — Figure 1: OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On FOMC &amp; CPI Event Volatility Crush &amp; For... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/occ-stans-margin-contango-roll-drag-and-term-structure-carry</loc>
    <lastmod>2026-11-05T14:34:35.393Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/occ-stans-margin-contango-roll-drag-and-term-structure-carry.jpg</image:loc>
      <image:title>OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On Constant-Maturity Contango Roll Drag &amp;... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On Constant-Maturity Contango Ro... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=OCC%20STANS%2020-Minute%20Intraday%20Risk%20Snapshots%20%26%200DTE%20Margin%20Add-On%20Constant-Maturity%20Contango%20Roll%20Drag%20%26%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AOCC%20STANS%2020-Minute%20Intraday%20Risk%20Snapshots%20%26%200DTE%20Margin%20Add-On%20%28OC%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%20VIX%20Futures%20Term%20Structure%20%28VX%7COCC-STANS-MARGIN%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%201-Day%20%28VIX1D%29%20%26%209%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A20%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7COCC-STANS-MARGIN%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On Constant-Maturity Contango Roll Drag &amp;... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On: Constant-Maturity Contango Roll Drag &amp; Backwardation Flip Triggers (20 min Intraday Monte Carlo Interval Benchmark) — Figure 1: OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On Constant-Maturity Contango Roll Drag &amp;... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/occ-stans-margin-clearing-margin-monte-carlo-stress-scenarios</loc>
    <lastmod>2026-11-05T14:34:35.395Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/occ-stans-margin-clearing-margin-monte-carlo-stress-scenarios.jpg</image:loc>
      <image:title>OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On Clearinghouse Margin Monte Carlo Scenar... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On Clearinghouse Margin Monte Ca... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=OCC%20STANS%2020-Minute%20Intraday%20Risk%20Snapshots%20%26%200DTE%20Margin%20Add-On%20Clearinghouse%20Margin%20Monte%20Carlo%20Scenar%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AOCC%20STANS%2020-Minute%20Intraday%20Risk%20Snapshots%20%26%200DTE%20Margin%20Add-On%20%28OC%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%20VIX%20Futures%20Term%20Structure%20%28VX%7COCC-STANS-MARGIN%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%201-Day%20%28VIX1D%29%20%26%209%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A20%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7COCC-STANS-MARGIN%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On Clearinghouse Margin Monte Carlo Scenar... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On: Clearinghouse Margin Monte Carlo Scenarios &amp; Intraday Call Triggers (20 min Intraday Monte Carlo Interval Benchmark) — Figure 1: OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On Clearinghouse Margin Monte Carlo Scenar... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/occ-stans-margin-strike-skew-convexity-and-butterfly-arbitrage</loc>
    <lastmod>2026-11-05T14:34:35.398Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/occ-stans-margin-strike-skew-convexity-and-butterfly-arbitrage.jpg</image:loc>
      <image:title>OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On 25-Delta Strike Skew, Put Wing Convexit... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On 25-Delta Strike Skew, Put Win... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=OCC%20STANS%2020-Minute%20Intraday%20Risk%20Snapshots%20%26%200DTE%20Margin%20Add-On%2025-Delta%20Strike%20Skew%2C%20Put%20Wing%20Convexit%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AOCC%20STANS%2020-Minute%20Intraday%20Risk%20Snapshots%20%26%200DTE%20Margin%20Add-On%20%28OC%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%20VIX%20Futures%20Term%20Structure%20%28VX%7COCC-STANS-MARGIN%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%201-Day%20%28VIX1D%29%20%26%209%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A20%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7COCC-STANS-MARGIN%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On 25-Delta Strike Skew, Put Wing Convexit... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On: 25-Delta Strike Skew, Put Wing Convexity &amp; No-Arbitrage Bounds (20 min Intraday Monte Carlo Interval Benchmark) — Figure 1: OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On 25-Delta Strike Skew, Put Wing Convexit... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/occ-stans-margin-dispersion-correlation-unwind-stress-audit</loc>
    <lastmod>2026-11-05T14:34:35.400Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/occ-stans-margin-dispersion-correlation-unwind-stress-audit.jpg</image:loc>
      <image:title>OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On Correlation Spike Stress Audit &amp; Instit... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On Correlation Spike Stress Audi... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=OCC%20STANS%2020-Minute%20Intraday%20Risk%20Snapshots%20%26%200DTE%20Margin%20Add-On%20Correlation%20Spike%20Stress%20Audit%20%26%20Instit%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AOCC%20STANS%2020-Minute%20Intraday%20Risk%20Snapshots%20%26%200DTE%20Margin%20Add-On%20%28OC%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%20VIX%20Futures%20Term%20Structure%20%28VX%7COCC-STANS-MARGIN%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%201-Day%20%28VIX1D%29%20%26%209%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A20%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7COCC-STANS-MARGIN%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On Correlation Spike Stress Audit &amp; Instit... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On: Correlation Spike Stress Audit &amp; Institutional Dispersion Unwinds (20 min Intraday Monte Carlo Interval Benchmark) — Figure 1: OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On Correlation Spike Stress Audit &amp; Instit... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/occ-stans-margin-350pm-moc-imbalance-and-cash-close-pinning</loc>
    <lastmod>2026-11-05T14:34:35.402Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/occ-stans-margin-350pm-moc-imbalance-and-cash-close-pinning.jpg</image:loc>
      <image:title>OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On 3 50 PM ET Market-on-Close (MOC) Imbala... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On 3 50 PM ET Market-on-Close (M... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=OCC%20STANS%2020-Minute%20Intraday%20Risk%20Snapshots%20%26%200DTE%20Margin%20Add-On%203%2050%20PM%20ET%20Market-on-Close%20%28MOC%29%20Imbala%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AOCC%20STANS%2020-Minute%20Intraday%20Risk%20Snapshots%20%26%200DTE%20Margin%20Add-On%20%28OC%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%20VIX%20Futures%20Term%20Structure%20%28VX%7COCC-STANS-MARGIN%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%201-Day%20%28VIX1D%29%20%26%209%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A20%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7COCC-STANS-MARGIN%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On 3 50 PM ET Market-on-Close (MOC) Imbala... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On: 3:50 PM ET Market-on-Close (MOC) Imbalance &amp; 4:00 PM Cash Settlement (20 min Intraday Monte Carlo Interval Benchmark) — Figure 1: OCC STANS 20-Minute Intraday Risk Snapshots &amp; 0DTE Margin Add-On 3 50 PM ET Market-on-Close (MOC) Imbala... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vix-vx1-vx2-roll-dealer-gamma-hedging-and-es-futures-impact</loc>
    <lastmod>2026-10-22T08:14:17.363Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vix-vx1-vx2-roll-dealer-gamma-hedging-and-es-futures-impact.jpg</image:loc>
      <image:title>Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) Dealer Delta/Gamma Hedging Equation... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) Dealer Delta/Gamma Hedgin... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%20VIX%20Futures%20Term%20Structure%20%28VX1%2FVX2%20Contango%20vs.%20Backwardation%29%20Dealer%20Delta%2FGamma%20Hedging%20Equation%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%20VIX%20Futures%20Term%20Structure%20%28VX1%2FVX2%20Contango%20vs.%20Backwardation%29%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%201-Day%20%28VIX1D%29%20%26%209-Day%20%28VIX9D%29%20%7CVIX-VX1-VX2-ROLL%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20S%26P%20500%20Index%20vs.%20Sing%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVIX-VX1-VX2-ROLL%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) Dealer Delta/Gamma Hedging Equation... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation): Dealer Delta/Gamma Hedging Equations &amp; E-Mini S&amp;P 500 Futures Impact ($1,000 Standard VX Point Multiplier Benchmark) — Figure 1: Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) Dealer Delta/Gamma Hedging Equation... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vix-vx1-vx2-roll-partial-derivative-formulas-and-surface-grid</loc>
    <lastmod>2026-11-05T14:34:35.404Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vix-vx1-vx2-roll-partial-derivative-formulas-and-surface-grid.jpg</image:loc>
      <image:title>Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) Partial Derivative Formulas, Scalin... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) Partial Derivative Formul... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%20VIX%20Futures%20Term%20Structure%20%28VX1%2FVX2%20Contango%20vs.%20Backwardation%29%20Partial%20Derivative%20Formulas%2C%20Scalin%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%20VIX%20Futures%20Term%20Structure%20%28VX1%2FVX2%20Contango%20vs.%20Backwardation%29%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%201-Day%20%28VIX1D%29%20%26%209-Day%20%28VIX9D%29%20%7CVIX-VX1-VX2-ROLL%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20S%26P%20500%20Index%20vs.%20Sing%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVIX-VX1-VX2-ROLL%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) Partial Derivative Formulas, Scalin... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation): Partial Derivative Formulas, Scaling Units &amp; Tenor Surface Grid ($1,000 Standard VX Point Multiplier Benchmark) — Figure 1: Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) Partial Derivative Formulas, Scalin... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vix-vx1-vx2-roll-fomc-and-cpi-event-volatility-crush-math</loc>
    <lastmod>2026-11-05T14:34:35.407Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vix-vx1-vx2-roll-fomc-and-cpi-event-volatility-crush-math.jpg</image:loc>
      <image:title>Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) FOMC &amp; CPI Event Volatility Crush &amp;... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) FOMC &amp; CPI Event Volatili... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%20VIX%20Futures%20Term%20Structure%20%28VX1%2FVX2%20Contango%20vs.%20Backwardation%29%20FOMC%20%26%20CPI%20Event%20Volatility%20Crush%20%26%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%20VIX%20Futures%20Term%20Structure%20%28VX1%2FVX2%20Contango%20vs.%20Backwardation%29%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%201-Day%20%28VIX1D%29%20%26%209-Day%20%28VIX9D%29%20%7CVIX-VX1-VX2-ROLL%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20S%26P%20500%20Index%20vs.%20Sing%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVIX-VX1-VX2-ROLL%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) FOMC &amp; CPI Event Volatility Crush &amp;... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation): FOMC &amp; CPI Event Volatility Crush &amp; Forward Variance Decomposition ($1,000 Standard VX Point Multiplier Benchmark) — Figure 1: Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) FOMC &amp; CPI Event Volatility Crush &amp;... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vix-vx1-vx2-roll-contango-roll-drag-and-term-structure-carry</loc>
    <lastmod>2026-11-05T14:34:35.409Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vix-vx1-vx2-roll-contango-roll-drag-and-term-structure-carry.jpg</image:loc>
      <image:title>Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) Constant-Maturity Contango Roll Dra... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) Constant-Maturity Contang... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%20VIX%20Futures%20Term%20Structure%20%28VX1%2FVX2%20Contango%20vs.%20Backwardation%29%20Constant-Maturity%20Contango%20Roll%20Dra%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%20VIX%20Futures%20Term%20Structure%20%28VX1%2FVX2%20Contango%20vs.%20Backwardation%29%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%201-Day%20%28VIX1D%29%20%26%209-Day%20%28VIX9D%29%20%7CVIX-VX1-VX2-ROLL%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20S%26P%20500%20Index%20vs.%20Sing%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVIX-VX1-VX2-ROLL%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) Constant-Maturity Contango Roll Dra... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation): Constant-Maturity Contango Roll Drag &amp; Backwardation Flip Triggers ($1,000 Standard VX Point Multiplier Benchmark) — Figure 1: Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) Constant-Maturity Contango Roll Dra... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vix-vx1-vx2-roll-clearing-margin-monte-carlo-stress-scenarios</loc>
    <lastmod>2026-11-05T14:34:35.412Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vix-vx1-vx2-roll-clearing-margin-monte-carlo-stress-scenarios.jpg</image:loc>
      <image:title>Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) Clearinghouse Margin Monte Carlo Sc... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) Clearinghouse Margin Mont... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%20VIX%20Futures%20Term%20Structure%20%28VX1%2FVX2%20Contango%20vs.%20Backwardation%29%20Clearinghouse%20Margin%20Monte%20Carlo%20Sc%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%20VIX%20Futures%20Term%20Structure%20%28VX1%2FVX2%20Contango%20vs.%20Backwardation%29%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%201-Day%20%28VIX1D%29%20%26%209-Day%20%28VIX9D%29%20%7CVIX-VX1-VX2-ROLL%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20S%26P%20500%20Index%20vs.%20Sing%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVIX-VX1-VX2-ROLL%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) Clearinghouse Margin Monte Carlo Sc... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation): Clearinghouse Margin Monte Carlo Scenarios &amp; Intraday Call Triggers ($1,000 Standard VX Point Multiplier Benchmark) — Figure 1: Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) Clearinghouse Margin Monte Carlo Sc... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vix-vx1-vx2-roll-strike-skew-convexity-and-butterfly-arbitrage</loc>
    <lastmod>2026-11-05T14:34:35.414Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vix-vx1-vx2-roll-strike-skew-convexity-and-butterfly-arbitrage.jpg</image:loc>
      <image:title>Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) 25-Delta Strike Skew, Put Wing Conv... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) 25-Delta Strike Skew, Put... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%20VIX%20Futures%20Term%20Structure%20%28VX1%2FVX2%20Contango%20vs.%20Backwardation%29%2025-Delta%20Strike%20Skew%2C%20Put%20Wing%20Conv%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%20VIX%20Futures%20Term%20Structure%20%28VX1%2FVX2%20Contango%20vs.%20Backwardation%29%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%201-Day%20%28VIX1D%29%20%26%209-Day%20%28VIX9D%29%20%7CVIX-VX1-VX2-ROLL%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20S%26P%20500%20Index%20vs.%20Sing%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVIX-VX1-VX2-ROLL%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) 25-Delta Strike Skew, Put Wing Conv... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation): 25-Delta Strike Skew, Put Wing Convexity &amp; No-Arbitrage Bounds ($1,000 Standard VX Point Multiplier Benchmark) — Figure 1: Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) 25-Delta Strike Skew, Put Wing Conv... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vix-vx1-vx2-roll-dispersion-correlation-unwind-stress-audit</loc>
    <lastmod>2026-11-05T14:34:35.416Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vix-vx1-vx2-roll-dispersion-correlation-unwind-stress-audit.jpg</image:loc>
      <image:title>Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) Correlation Spike Stress Audit &amp; In... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) Correlation Spike Stress... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%20VIX%20Futures%20Term%20Structure%20%28VX1%2FVX2%20Contango%20vs.%20Backwardation%29%20Correlation%20Spike%20Stress%20Audit%20%26%20In%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%20VIX%20Futures%20Term%20Structure%20%28VX1%2FVX2%20Contango%20vs.%20Backwardation%29%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%201-Day%20%28VIX1D%29%20%26%209-Day%20%28VIX9D%29%20%7CVIX-VX1-VX2-ROLL%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20S%26P%20500%20Index%20vs.%20Sing%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVIX-VX1-VX2-ROLL%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) Correlation Spike Stress Audit &amp; In... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation): Correlation Spike Stress Audit &amp; Institutional Dispersion Unwinds ($1,000 Standard VX Point Multiplier Benchmark) — Figure 1: Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) Correlation Spike Stress Audit &amp; In... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vix-vx1-vx2-roll-350pm-moc-imbalance-and-cash-close-pinning</loc>
    <lastmod>2026-11-05T14:34:35.418Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vix-vx1-vx2-roll-350pm-moc-imbalance-and-cash-close-pinning.jpg</image:loc>
      <image:title>Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) 3 50 PM ET Market-on-Close (MOC) Im... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) 3 50 PM ET Market-on-Clos... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%20VIX%20Futures%20Term%20Structure%20%28VX1%2FVX2%20Contango%20vs.%20Backwardation%29%203%2050%20PM%20ET%20Market-on-Close%20%28MOC%29%20Im%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%20VIX%20Futures%20Term%20Structure%20%28VX1%2FVX2%20Contango%20vs.%20Backwardation%29%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%201-Day%20%28VIX1D%29%20%26%209-Day%20%28VIX9D%29%20%7CVIX-VX1-VX2-ROLL%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20S%26P%20500%20Index%20vs.%20Sing%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVIX-VX1-VX2-ROLL%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) 3 50 PM ET Market-on-Close (MOC) Im... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation): 3:50 PM ET Market-on-Close (MOC) Imbalance &amp; 4:00 PM Cash Settlement ($1,000 Standard VX Point Multiplier Benchmark) — Figure 1: Cboe VIX Futures Term Structure (VX1/VX2 Contango vs. Backwardation) 3 50 PM ET Market-on-Close (MOC) Im... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vix1d-vix9d-short-dealer-gamma-hedging-and-es-futures-impact</loc>
    <lastmod>2026-10-22T08:14:17.363Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vix1d-vix9d-short-dealer-gamma-hedging-and-es-futures-impact.jpg</image:loc>
      <image:title>Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks Dealer Delta/Gamma Hedging Equation... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks Dealer Delta/Gamma Hedgin... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%201-Day%20%28VIX1D%29%20%26%209-Day%20%28VIX9D%29%20Ultra-Short%20Volatility%20Benchmarks%20Dealer%20Delta%2FGamma%20Hedging%20Equation%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%201-Day%20%28VIX1D%29%20%26%209-Day%20%28VIX9D%29%20Ultra-Short%20Volatility%20Benchmarks%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20S%26P%20500%20Index%20vs.%20Single-Stock%20Impl%7CVIX1D-VIX9D-SHORT%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20SPX%2025-Delta%20Put-Call%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3A25%3A%3ACross-Checked%20Primary%20Filings%7CVIX1D-VIX9D-SHORT%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks Dealer Delta/Gamma Hedging Equation... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks: Dealer Delta/Gamma Hedging Equations &amp; E-Mini S&amp;P 500 Futures Impact (1 Day Event Jump Volatility Horizon Benchmark) — Figure 1: Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks Dealer Delta/Gamma Hedging Equation... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vix1d-vix9d-short-partial-derivative-formulas-and-surface-grid</loc>
    <lastmod>2026-11-05T14:34:35.420Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vix1d-vix9d-short-partial-derivative-formulas-and-surface-grid.jpg</image:loc>
      <image:title>Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks Partial Derivative Formulas, Scalin... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks Partial Derivative Formul... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%201-Day%20%28VIX1D%29%20%26%209-Day%20%28VIX9D%29%20Ultra-Short%20Volatility%20Benchmarks%20Partial%20Derivative%20Formulas%2C%20Scalin%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%201-Day%20%28VIX1D%29%20%26%209-Day%20%28VIX9D%29%20Ultra-Short%20Volatility%20Benchmarks%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20S%26P%20500%20Index%20vs.%20Single-Stock%20Impl%7CVIX1D-VIX9D-SHORT%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20SPX%2025-Delta%20Put-Call%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3A25%3A%3ACross-Checked%20Primary%20Filings%7CVIX1D-VIX9D-SHORT%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks Partial Derivative Formulas, Scalin... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks: Partial Derivative Formulas, Scaling Units &amp; Tenor Surface Grid (1 Day Event Jump Volatility Horizon Benchmark) — Figure 1: Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks Partial Derivative Formulas, Scalin... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vix1d-vix9d-short-fomc-and-cpi-event-volatility-crush-math</loc>
    <lastmod>2026-11-05T14:34:35.422Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vix1d-vix9d-short-fomc-and-cpi-event-volatility-crush-math.jpg</image:loc>
      <image:title>Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks FOMC &amp; CPI Event Volatility Crush &amp;... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks FOMC &amp; CPI Event Volatili... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%201-Day%20%28VIX1D%29%20%26%209-Day%20%28VIX9D%29%20Ultra-Short%20Volatility%20Benchmarks%20FOMC%20%26%20CPI%20Event%20Volatility%20Crush%20%26%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%201-Day%20%28VIX1D%29%20%26%209-Day%20%28VIX9D%29%20Ultra-Short%20Volatility%20Benchmarks%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20S%26P%20500%20Index%20vs.%20Single-Stock%20Impl%7CVIX1D-VIX9D-SHORT%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20SPX%2025-Delta%20Put-Call%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3A25%3A%3ACross-Checked%20Primary%20Filings%7CVIX1D-VIX9D-SHORT%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks FOMC &amp; CPI Event Volatility Crush &amp;... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks: FOMC &amp; CPI Event Volatility Crush &amp; Forward Variance Decomposition (1 Day Event Jump Volatility Horizon Benchmark) — Figure 1: Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks FOMC &amp; CPI Event Volatility Crush &amp;... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vix1d-vix9d-short-contango-roll-drag-and-term-structure-carry</loc>
    <lastmod>2026-11-05T14:34:35.425Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vix1d-vix9d-short-contango-roll-drag-and-term-structure-carry.jpg</image:loc>
      <image:title>Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks Constant-Maturity Contango Roll Dra... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks Constant-Maturity Contang... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%201-Day%20%28VIX1D%29%20%26%209-Day%20%28VIX9D%29%20Ultra-Short%20Volatility%20Benchmarks%20Constant-Maturity%20Contango%20Roll%20Dra%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%201-Day%20%28VIX1D%29%20%26%209-Day%20%28VIX9D%29%20Ultra-Short%20Volatility%20Benchmarks%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20S%26P%20500%20Index%20vs.%20Single-Stock%20Impl%7CVIX1D-VIX9D-SHORT%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20SPX%2025-Delta%20Put-Call%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3A25%3A%3ACross-Checked%20Primary%20Filings%7CVIX1D-VIX9D-SHORT%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks Constant-Maturity Contango Roll Dra... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks: Constant-Maturity Contango Roll Drag &amp; Backwardation Flip Triggers (1 Day Event Jump Volatility Horizon Benchmark) — Figure 1: Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks Constant-Maturity Contango Roll Dra... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vix1d-vix9d-short-clearing-margin-monte-carlo-stress-scenarios</loc>
    <lastmod>2026-11-05T14:34:35.427Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vix1d-vix9d-short-clearing-margin-monte-carlo-stress-scenarios.jpg</image:loc>
      <image:title>Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks Clearinghouse Margin Monte Carlo Sc... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks Clearinghouse Margin Mont... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%201-Day%20%28VIX1D%29%20%26%209-Day%20%28VIX9D%29%20Ultra-Short%20Volatility%20Benchmarks%20Clearinghouse%20Margin%20Monte%20Carlo%20Sc%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%201-Day%20%28VIX1D%29%20%26%209-Day%20%28VIX9D%29%20Ultra-Short%20Volatility%20Benchmarks%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20S%26P%20500%20Index%20vs.%20Single-Stock%20Impl%7CVIX1D-VIX9D-SHORT%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20SPX%2025-Delta%20Put-Call%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3A25%3A%3ACross-Checked%20Primary%20Filings%7CVIX1D-VIX9D-SHORT%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks Clearinghouse Margin Monte Carlo Sc... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks: Clearinghouse Margin Monte Carlo Scenarios &amp; Intraday Call Triggers (1 Day Event Jump Volatility Horizon Benchmark) — Figure 1: Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks Clearinghouse Margin Monte Carlo Sc... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vix1d-vix9d-short-strike-skew-convexity-and-butterfly-arbitrage</loc>
    <lastmod>2026-11-05T14:34:35.429Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vix1d-vix9d-short-strike-skew-convexity-and-butterfly-arbitrage.jpg</image:loc>
      <image:title>Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks 25-Delta Strike Skew, Put Wing Conv... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks 25-Delta Strike Skew, Put... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%201-Day%20%28VIX1D%29%20%26%209-Day%20%28VIX9D%29%20Ultra-Short%20Volatility%20Benchmarks%2025-Delta%20Strike%20Skew%2C%20Put%20Wing%20Conv%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%201-Day%20%28VIX1D%29%20%26%209-Day%20%28VIX9D%29%20Ultra-Short%20Volatility%20Benchmarks%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20S%26P%20500%20Index%20vs.%20Single-Stock%20Impl%7CVIX1D-VIX9D-SHORT%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20SPX%2025-Delta%20Put-Call%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3A25%3A%3ACross-Checked%20Primary%20Filings%7CVIX1D-VIX9D-SHORT%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks 25-Delta Strike Skew, Put Wing Conv... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks: 25-Delta Strike Skew, Put Wing Convexity &amp; No-Arbitrage Bounds (1 Day Event Jump Volatility Horizon Benchmark) — Figure 1: Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks 25-Delta Strike Skew, Put Wing Conv... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vix1d-vix9d-short-dispersion-correlation-unwind-stress-audit</loc>
    <lastmod>2026-11-05T14:34:35.431Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vix1d-vix9d-short-dispersion-correlation-unwind-stress-audit.jpg</image:loc>
      <image:title>Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks Correlation Spike Stress Audit &amp; In... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks Correlation Spike Stress... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%201-Day%20%28VIX1D%29%20%26%209-Day%20%28VIX9D%29%20Ultra-Short%20Volatility%20Benchmarks%20Correlation%20Spike%20Stress%20Audit%20%26%20In%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%201-Day%20%28VIX1D%29%20%26%209-Day%20%28VIX9D%29%20Ultra-Short%20Volatility%20Benchmarks%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20S%26P%20500%20Index%20vs.%20Single-Stock%20Impl%7CVIX1D-VIX9D-SHORT%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20SPX%2025-Delta%20Put-Call%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3A25%3A%3ACross-Checked%20Primary%20Filings%7CVIX1D-VIX9D-SHORT%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks Correlation Spike Stress Audit &amp; In... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks: Correlation Spike Stress Audit &amp; Institutional Dispersion Unwinds (1 Day Event Jump Volatility Horizon Benchmark) — Figure 1: Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks Correlation Spike Stress Audit &amp; In... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vix1d-vix9d-short-350pm-moc-imbalance-and-cash-close-pinning</loc>
    <lastmod>2026-11-05T14:34:35.433Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vix1d-vix9d-short-350pm-moc-imbalance-and-cash-close-pinning.jpg</image:loc>
      <image:title>Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks 3 50 PM ET Market-on-Close (MOC) Im... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks 3 50 PM ET Market-on-Clos... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%201-Day%20%28VIX1D%29%20%26%209-Day%20%28VIX9D%29%20Ultra-Short%20Volatility%20Benchmarks%203%2050%20PM%20ET%20Market-on-Close%20%28MOC%29%20Im%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%201-Day%20%28VIX1D%29%20%26%209-Day%20%28VIX9D%29%20Ultra-Short%20Volatility%20Benchmarks%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20S%26P%20500%20Index%20vs.%20Single-Stock%20Impl%7CVIX1D-VIX9D-SHORT%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20SPX%2025-Delta%20Put-Call%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3A25%3A%3ACross-Checked%20Primary%20Filings%7CVIX1D-VIX9D-SHORT%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks 3 50 PM ET Market-on-Close (MOC) Im... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks: 3:50 PM ET Market-on-Close (MOC) Imbalance &amp; 4:00 PM Cash Settlement (1 Day Event Jump Volatility Horizon Benchmark) — Figure 1: Cboe 1-Day (VIX1D) &amp; 9-Day (VIX9D) Ultra-Short Volatility Benchmarks 3 50 PM ET Market-on-Close (MOC) Im... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/index-dispersion-dealer-gamma-hedging-and-es-futures-impact</loc>
    <lastmod>2026-10-22T08:14:17.363Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/index-dispersion-dealer-gamma-hedging-and-es-futures-impact.jpg</image:loc>
      <image:title>S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading Dealer Delta/Gamma Hedging Equat... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading Dealer Delta/Gamma Hed... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=S%26P%20500%20Index%20vs.%20Single-Stock%20Implied%20Correlation%20%26%20Dispersion%20Trading%20Dealer%20Delta%2FGamma%20Hedging%20Equat%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AS%26P%20500%20Index%20vs.%20Single-Stock%20Implied%20Correlation%20%26%20Dispersion%20Trad%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20SPX%2025-Delta%20Put-Call%20Skew%2C%20Risk%20Re%7CINDEX-DISPERSION%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Third-Order%20%26%20Cross-Ve%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3A25%3A%3ACross-Checked%20Primary%20Filings%7CINDEX-DISPERSION%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading Dealer Delta/Gamma Hedging Equat... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading: Dealer Delta/Gamma Hedging Equations &amp; E-Mini S&amp;P 500 Futures Impact (+8.5 pts Implied vs. Realized Corr Spread Benchmark) — Figure 1: S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading Dealer Delta/Gamma Hedging Equat... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/index-dispersion-partial-derivative-formulas-and-surface-grid</loc>
    <lastmod>2026-11-05T14:34:35.435Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/index-dispersion-partial-derivative-formulas-and-surface-grid.jpg</image:loc>
      <image:title>S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading Partial Derivative Formulas, Sca... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading Partial Derivative For... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=S%26P%20500%20Index%20vs.%20Single-Stock%20Implied%20Correlation%20%26%20Dispersion%20Trading%20Partial%20Derivative%20Formulas%2C%20Sca%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AS%26P%20500%20Index%20vs.%20Single-Stock%20Implied%20Correlation%20%26%20Dispersion%20Trad%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20SPX%2025-Delta%20Put-Call%20Skew%2C%20Risk%20Re%7CINDEX-DISPERSION%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Third-Order%20%26%20Cross-Ve%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3A25%3A%3ACross-Checked%20Primary%20Filings%7CINDEX-DISPERSION%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading Partial Derivative Formulas, Sca... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading: Partial Derivative Formulas, Scaling Units &amp; Tenor Surface Grid (+8.5 pts Implied vs. Realized Corr Spread Benchmark) — Figure 1: S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading Partial Derivative Formulas, Sca... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/index-dispersion-fomc-and-cpi-event-volatility-crush-math</loc>
    <lastmod>2026-11-05T14:34:35.437Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/index-dispersion-fomc-and-cpi-event-volatility-crush-math.jpg</image:loc>
      <image:title>S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading FOMC &amp; CPI Event Volatility Crus... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading FOMC &amp; CPI Event Volat... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=S%26P%20500%20Index%20vs.%20Single-Stock%20Implied%20Correlation%20%26%20Dispersion%20Trading%20FOMC%20%26%20CPI%20Event%20Volatility%20Crus%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AS%26P%20500%20Index%20vs.%20Single-Stock%20Implied%20Correlation%20%26%20Dispersion%20Trad%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20SPX%2025-Delta%20Put-Call%20Skew%2C%20Risk%20Re%7CINDEX-DISPERSION%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Third-Order%20%26%20Cross-Ve%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3A25%3A%3ACross-Checked%20Primary%20Filings%7CINDEX-DISPERSION%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading FOMC &amp; CPI Event Volatility Crus... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading: FOMC &amp; CPI Event Volatility Crush &amp; Forward Variance Decomposition (+8.5 pts Implied vs. Realized Corr Spread Benchmark) — Figure 1: S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading FOMC &amp; CPI Event Volatility Crus... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/index-dispersion-contango-roll-drag-and-term-structure-carry</loc>
    <lastmod>2026-11-05T14:34:35.439Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/index-dispersion-contango-roll-drag-and-term-structure-carry.jpg</image:loc>
      <image:title>S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading Constant-Maturity Contango Roll... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading Constant-Maturity Cont... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=S%26P%20500%20Index%20vs.%20Single-Stock%20Implied%20Correlation%20%26%20Dispersion%20Trading%20Constant-Maturity%20Contango%20Roll%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AS%26P%20500%20Index%20vs.%20Single-Stock%20Implied%20Correlation%20%26%20Dispersion%20Trad%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20SPX%2025-Delta%20Put-Call%20Skew%2C%20Risk%20Re%7CINDEX-DISPERSION%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Third-Order%20%26%20Cross-Ve%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3A25%3A%3ACross-Checked%20Primary%20Filings%7CINDEX-DISPERSION%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading Constant-Maturity Contango Roll... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading: Constant-Maturity Contango Roll Drag &amp; Backwardation Flip Triggers (+8.5 pts Implied vs. Realized Corr Spread Benchmark) — Figure 1: S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading Constant-Maturity Contango Roll... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/index-dispersion-clearing-margin-monte-carlo-stress-scenarios</loc>
    <lastmod>2026-11-05T14:34:35.441Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/index-dispersion-clearing-margin-monte-carlo-stress-scenarios.jpg</image:loc>
      <image:title>S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading Clearinghouse Margin Monte Carlo... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading Clearinghouse Margin M... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=S%26P%20500%20Index%20vs.%20Single-Stock%20Implied%20Correlation%20%26%20Dispersion%20Trading%20Clearinghouse%20Margin%20Monte%20Carlo%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AS%26P%20500%20Index%20vs.%20Single-Stock%20Implied%20Correlation%20%26%20Dispersion%20Trad%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20SPX%2025-Delta%20Put-Call%20Skew%2C%20Risk%20Re%7CINDEX-DISPERSION%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Third-Order%20%26%20Cross-Ve%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3A25%3A%3ACross-Checked%20Primary%20Filings%7CINDEX-DISPERSION%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading Clearinghouse Margin Monte Carlo... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading: Clearinghouse Margin Monte Carlo Scenarios &amp; Intraday Call Triggers (+8.5 pts Implied vs. Realized Corr Spread Benchmark) — Figure 1: S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading Clearinghouse Margin Monte Carlo... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/index-dispersion-strike-skew-convexity-and-butterfly-arbitrage</loc>
    <lastmod>2026-11-05T14:34:35.443Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/index-dispersion-strike-skew-convexity-and-butterfly-arbitrage.jpg</image:loc>
      <image:title>S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading 25-Delta Strike Skew, Put Wing C... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading 25-Delta Strike Skew,... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=S%26P%20500%20Index%20vs.%20Single-Stock%20Implied%20Correlation%20%26%20Dispersion%20Trading%2025-Delta%20Strike%20Skew%2C%20Put%20Wing%20C%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AS%26P%20500%20Index%20vs.%20Single-Stock%20Implied%20Correlation%20%26%20Dispersion%20Trad%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20SPX%2025-Delta%20Put-Call%20Skew%2C%20Risk%20Re%7CINDEX-DISPERSION%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Third-Order%20%26%20Cross-Ve%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3A25%3A%3ACross-Checked%20Primary%20Filings%7CINDEX-DISPERSION%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading 25-Delta Strike Skew, Put Wing C... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading: 25-Delta Strike Skew, Put Wing Convexity &amp; No-Arbitrage Bounds (+8.5 pts Implied vs. Realized Corr Spread Benchmark) — Figure 1: S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading 25-Delta Strike Skew, Put Wing C... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/index-dispersion-dispersion-correlation-unwind-stress-audit</loc>
    <lastmod>2026-11-05T14:34:35.445Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/index-dispersion-dispersion-correlation-unwind-stress-audit.jpg</image:loc>
      <image:title>S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading Correlation Spike Stress Audit &amp;... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading Correlation Spike Stre... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=S%26P%20500%20Index%20vs.%20Single-Stock%20Implied%20Correlation%20%26%20Dispersion%20Trading%20Correlation%20Spike%20Stress%20Audit%20%26%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AS%26P%20500%20Index%20vs.%20Single-Stock%20Implied%20Correlation%20%26%20Dispersion%20Trad%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20SPX%2025-Delta%20Put-Call%20Skew%2C%20Risk%20Re%7CINDEX-DISPERSION%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Third-Order%20%26%20Cross-Ve%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3A25%3A%3ACross-Checked%20Primary%20Filings%7CINDEX-DISPERSION%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading Correlation Spike Stress Audit &amp;... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading: Correlation Spike Stress Audit &amp; Institutional Dispersion Unwinds (+8.5 pts Implied vs. Realized Corr Spread Benchmark) — Figure 1: S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading Correlation Spike Stress Audit &amp;... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/index-dispersion-350pm-moc-imbalance-and-cash-close-pinning</loc>
    <lastmod>2026-11-05T14:34:35.447Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/index-dispersion-350pm-moc-imbalance-and-cash-close-pinning.jpg</image:loc>
      <image:title>S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading 3 50 PM ET Market-on-Close (MOC)... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading 3 50 PM ET Market-on-C... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=S%26P%20500%20Index%20vs.%20Single-Stock%20Implied%20Correlation%20%26%20Dispersion%20Trading%203%2050%20PM%20ET%20Market-on-Close%20%28MOC%29%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AS%26P%20500%20Index%20vs.%20Single-Stock%20Implied%20Correlation%20%26%20Dispersion%20Trad%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20SPX%2025-Delta%20Put-Call%20Skew%2C%20Risk%20Re%7CINDEX-DISPERSION%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Third-Order%20%26%20Cross-Ve%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A500%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3A25%3A%3ACross-Checked%20Primary%20Filings%7CINDEX-DISPERSION%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading 3 50 PM ET Market-on-Close (MOC)... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading: 3:50 PM ET Market-on-Close (MOC) Imbalance &amp; 4:00 PM Cash Settlement (+8.5 pts Implied vs. Realized Corr Spread Benchmark) — Figure 1: S&amp;P 500 Index vs. Single-Stock Implied Correlation &amp; Dispersion Trading 3 50 PM ET Market-on-Close (MOC)... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/spx-25d-skew-dealer-gamma-hedging-and-es-futures-impact</loc>
    <lastmod>2026-10-22T08:14:17.363Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/spx-25d-skew-dealer-gamma-hedging-and-es-futures-impact.jpg</image:loc>
      <image:title>SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing Dealer Delta/Gamma Hedging Equ... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing Dealer Delta/Gamma H... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=SPX%2025-Delta%20Put-Call%20Skew%2C%20Risk%20Reversals%20%26%20Cboe%20SKEW%20Index%20Tail%20Pricing%20Dealer%20Delta%2FGamma%20Hedging%20Equ%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ASPX%2025-Delta%20Put-Call%20Skew%2C%20Risk%20Reversals%20%26%20Cboe%20SKEW%20Index%20Tail%20Pr%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Third-Order%20%26%20Cross-Vega%20Greeks%20Vom%7CSPX-25D-SKEW%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20SABR%20Stochastic%20Volati%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A25%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSPX-25D-SKEW%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing Dealer Delta/Gamma Hedging Equ... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing: Dealer Delta/Gamma Hedging Equations &amp; E-Mini S&amp;P 500 Futures Impact (148.5 Cboe SKEW Index Level Benchmark) — Figure 1: SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing Dealer Delta/Gamma Hedging Equ... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/spx-25d-skew-partial-derivative-formulas-and-surface-grid</loc>
    <lastmod>2026-11-05T14:34:35.449Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/spx-25d-skew-partial-derivative-formulas-and-surface-grid.jpg</image:loc>
      <image:title>SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing Partial Derivative Formulas, S... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing Partial Derivative F... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=SPX%2025-Delta%20Put-Call%20Skew%2C%20Risk%20Reversals%20%26%20Cboe%20SKEW%20Index%20Tail%20Pricing%20Partial%20Derivative%20Formulas%2C%20S%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ASPX%2025-Delta%20Put-Call%20Skew%2C%20Risk%20Reversals%20%26%20Cboe%20SKEW%20Index%20Tail%20Pr%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Third-Order%20%26%20Cross-Vega%20Greeks%20Vom%7CSPX-25D-SKEW%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20SABR%20Stochastic%20Volati%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A25%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSPX-25D-SKEW%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing Partial Derivative Formulas, S... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing: Partial Derivative Formulas, Scaling Units &amp; Tenor Surface Grid (148.5 Cboe SKEW Index Level Benchmark) — Figure 1: SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing Partial Derivative Formulas, S... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/spx-25d-skew-fomc-and-cpi-event-volatility-crush-math</loc>
    <lastmod>2026-11-05T14:34:35.451Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/spx-25d-skew-fomc-and-cpi-event-volatility-crush-math.jpg</image:loc>
      <image:title>SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing FOMC &amp; CPI Event Volatility Cr... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing FOMC &amp; CPI Event Vol... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=SPX%2025-Delta%20Put-Call%20Skew%2C%20Risk%20Reversals%20%26%20Cboe%20SKEW%20Index%20Tail%20Pricing%20FOMC%20%26%20CPI%20Event%20Volatility%20Cr%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ASPX%2025-Delta%20Put-Call%20Skew%2C%20Risk%20Reversals%20%26%20Cboe%20SKEW%20Index%20Tail%20Pr%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Third-Order%20%26%20Cross-Vega%20Greeks%20Vom%7CSPX-25D-SKEW%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20SABR%20Stochastic%20Volati%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A25%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSPX-25D-SKEW%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing FOMC &amp; CPI Event Volatility Cr... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing: FOMC &amp; CPI Event Volatility Crush &amp; Forward Variance Decomposition (148.5 Cboe SKEW Index Level Benchmark) — Figure 1: SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing FOMC &amp; CPI Event Volatility Cr... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/spx-25d-skew-contango-roll-drag-and-term-structure-carry</loc>
    <lastmod>2026-11-05T14:34:35.453Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/spx-25d-skew-contango-roll-drag-and-term-structure-carry.jpg</image:loc>
      <image:title>SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing Constant-Maturity Contango Rol... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing Constant-Maturity Co... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=SPX%2025-Delta%20Put-Call%20Skew%2C%20Risk%20Reversals%20%26%20Cboe%20SKEW%20Index%20Tail%20Pricing%20Constant-Maturity%20Contango%20Rol%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ASPX%2025-Delta%20Put-Call%20Skew%2C%20Risk%20Reversals%20%26%20Cboe%20SKEW%20Index%20Tail%20Pr%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Third-Order%20%26%20Cross-Vega%20Greeks%20Vom%7CSPX-25D-SKEW%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20SABR%20Stochastic%20Volati%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A25%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSPX-25D-SKEW%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing Constant-Maturity Contango Rol... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing: Constant-Maturity Contango Roll Drag &amp; Backwardation Flip Triggers (148.5 Cboe SKEW Index Level Benchmark) — Figure 1: SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing Constant-Maturity Contango Rol... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/spx-25d-skew-clearing-margin-monte-carlo-stress-scenarios</loc>
    <lastmod>2026-11-05T14:34:35.455Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/spx-25d-skew-clearing-margin-monte-carlo-stress-scenarios.jpg</image:loc>
      <image:title>SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing Clearinghouse Margin Monte Car... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing Clearinghouse Margin... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=SPX%2025-Delta%20Put-Call%20Skew%2C%20Risk%20Reversals%20%26%20Cboe%20SKEW%20Index%20Tail%20Pricing%20Clearinghouse%20Margin%20Monte%20Car%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ASPX%2025-Delta%20Put-Call%20Skew%2C%20Risk%20Reversals%20%26%20Cboe%20SKEW%20Index%20Tail%20Pr%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Third-Order%20%26%20Cross-Vega%20Greeks%20Vom%7CSPX-25D-SKEW%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20SABR%20Stochastic%20Volati%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A25%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSPX-25D-SKEW%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing Clearinghouse Margin Monte Car... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing: Clearinghouse Margin Monte Carlo Scenarios &amp; Intraday Call Triggers (148.5 Cboe SKEW Index Level Benchmark) — Figure 1: SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing Clearinghouse Margin Monte Car... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/spx-25d-skew-strike-skew-convexity-and-butterfly-arbitrage</loc>
    <lastmod>2026-11-05T14:34:35.457Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/spx-25d-skew-strike-skew-convexity-and-butterfly-arbitrage.jpg</image:loc>
      <image:title>SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing 25-Delta Strike Skew, Put Wing... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing 25-Delta Strike Skew... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=SPX%2025-Delta%20Put-Call%20Skew%2C%20Risk%20Reversals%20%26%20Cboe%20SKEW%20Index%20Tail%20Pricing%2025-Delta%20Strike%20Skew%2C%20Put%20Wing%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ASPX%2025-Delta%20Put-Call%20Skew%2C%20Risk%20Reversals%20%26%20Cboe%20SKEW%20Index%20Tail%20Pr%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Third-Order%20%26%20Cross-Vega%20Greeks%20Vom%7CSPX-25D-SKEW%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20SABR%20Stochastic%20Volati%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A25%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSPX-25D-SKEW%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing 25-Delta Strike Skew, Put Wing... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing: 25-Delta Strike Skew, Put Wing Convexity &amp; No-Arbitrage Bounds (148.5 Cboe SKEW Index Level Benchmark) — Figure 1: SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing 25-Delta Strike Skew, Put Wing... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/spx-25d-skew-dispersion-correlation-unwind-stress-audit</loc>
    <lastmod>2026-11-05T14:34:35.459Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/spx-25d-skew-dispersion-correlation-unwind-stress-audit.jpg</image:loc>
      <image:title>SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing Correlation Spike Stress Audit... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing Correlation Spike St... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=SPX%2025-Delta%20Put-Call%20Skew%2C%20Risk%20Reversals%20%26%20Cboe%20SKEW%20Index%20Tail%20Pricing%20Correlation%20Spike%20Stress%20Audit%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ASPX%2025-Delta%20Put-Call%20Skew%2C%20Risk%20Reversals%20%26%20Cboe%20SKEW%20Index%20Tail%20Pr%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Third-Order%20%26%20Cross-Vega%20Greeks%20Vom%7CSPX-25D-SKEW%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20SABR%20Stochastic%20Volati%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A25%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSPX-25D-SKEW%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing Correlation Spike Stress Audit... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing: Correlation Spike Stress Audit &amp; Institutional Dispersion Unwinds (148.5 Cboe SKEW Index Level Benchmark) — Figure 1: SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing Correlation Spike Stress Audit... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/spx-25d-skew-350pm-moc-imbalance-and-cash-close-pinning</loc>
    <lastmod>2026-11-05T14:34:35.461Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/spx-25d-skew-350pm-moc-imbalance-and-cash-close-pinning.jpg</image:loc>
      <image:title>SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing 3 50 PM ET Market-on-Close (MO... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing 3 50 PM ET Market-on... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=SPX%2025-Delta%20Put-Call%20Skew%2C%20Risk%20Reversals%20%26%20Cboe%20SKEW%20Index%20Tail%20Pricing%203%2050%20PM%20ET%20Market-on-Close%20%28MO%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ASPX%2025-Delta%20Put-Call%20Skew%2C%20Risk%20Reversals%20%26%20Cboe%20SKEW%20Index%20Tail%20Pr%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Third-Order%20%26%20Cross-Vega%20Greeks%20Vom%7CSPX-25D-SKEW%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20SABR%20Stochastic%20Volati%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A25%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSPX-25D-SKEW%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing 3 50 PM ET Market-on-Close (MO... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing: 3:50 PM ET Market-on-Close (MOC) Imbalance &amp; 4:00 PM Cash Settlement (148.5 Cboe SKEW Index Level Benchmark) — Figure 1: SPX 25-Delta Put-Call Skew, Risk Reversals &amp; Cboe SKEW Index Tail Pricing 3 50 PM ET Market-on-Close (MO... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vomma-zomma-speed-dealer-gamma-hedging-and-es-futures-impact</loc>
    <lastmod>2026-10-22T08:14:17.363Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vomma-zomma-speed-dealer-gamma-hedging-and-es-futures-impact.jpg</image:loc>
      <image:title>Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics Dealer Delta/Gamma Hedging Equati... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics Dealer Delta/Gamma Hedg... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Third-Order%20%26%20Cross-Vega%20Greeks%20Vomma%20%28Volga%29%2C%20Zomma%20%26%20Speed%20Mechanics%20Dealer%20Delta%2FGamma%20Hedging%20Equati%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AThird-Order%20%26%20Cross-Vega%20Greeks%20Vomma%20%28Volga%29%2C%20Zomma%20%26%20Speed%20Mechani%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20SABR%20Stochastic%20Volatility%20vs.%20Gath%7CVOMMA-ZOMMA-SPEED%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Nasdaq-100%20%28NDX%29%20vs.%20S%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A100%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVOMMA-ZOMMA-SPEED%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics Dealer Delta/Gamma Hedging Equati... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Third-Order &amp; Cross-Vega Greeks: Vomma (Volga), Zomma &amp; Speed Mechanics: Dealer Delta/Gamma Hedging Equations &amp; E-Mini S&amp;P 500 Futures Impact (d2V/dσ2 Vega Convexity Derivative Benchmark) — Figure 1: Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics Dealer Delta/Gamma Hedging Equati... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vomma-zomma-speed-partial-derivative-formulas-and-surface-grid</loc>
    <lastmod>2026-11-05T14:34:35.463Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vomma-zomma-speed-partial-derivative-formulas-and-surface-grid.jpg</image:loc>
      <image:title>Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics Partial Derivative Formulas, Scal... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics Partial Derivative Form... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Third-Order%20%26%20Cross-Vega%20Greeks%20Vomma%20%28Volga%29%2C%20Zomma%20%26%20Speed%20Mechanics%20Partial%20Derivative%20Formulas%2C%20Scal%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AThird-Order%20%26%20Cross-Vega%20Greeks%20Vomma%20%28Volga%29%2C%20Zomma%20%26%20Speed%20Mechani%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20SABR%20Stochastic%20Volatility%20vs.%20Gath%7CVOMMA-ZOMMA-SPEED%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Nasdaq-100%20%28NDX%29%20vs.%20S%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A100%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVOMMA-ZOMMA-SPEED%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics Partial Derivative Formulas, Scal... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Third-Order &amp; Cross-Vega Greeks: Vomma (Volga), Zomma &amp; Speed Mechanics: Partial Derivative Formulas, Scaling Units &amp; Tenor Surface Grid (d2V/dσ2 Vega Convexity Derivative Benchmark) — Figure 1: Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics Partial Derivative Formulas, Scal... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vomma-zomma-speed-fomc-and-cpi-event-volatility-crush-math</loc>
    <lastmod>2026-11-05T14:34:35.465Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vomma-zomma-speed-fomc-and-cpi-event-volatility-crush-math.jpg</image:loc>
      <image:title>Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics FOMC &amp; CPI Event Volatility Crush... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics FOMC &amp; CPI Event Volati... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Third-Order%20%26%20Cross-Vega%20Greeks%20Vomma%20%28Volga%29%2C%20Zomma%20%26%20Speed%20Mechanics%20FOMC%20%26%20CPI%20Event%20Volatility%20Crush%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AThird-Order%20%26%20Cross-Vega%20Greeks%20Vomma%20%28Volga%29%2C%20Zomma%20%26%20Speed%20Mechani%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20SABR%20Stochastic%20Volatility%20vs.%20Gath%7CVOMMA-ZOMMA-SPEED%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Nasdaq-100%20%28NDX%29%20vs.%20S%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A100%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVOMMA-ZOMMA-SPEED%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics FOMC &amp; CPI Event Volatility Crush... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Third-Order &amp; Cross-Vega Greeks: Vomma (Volga), Zomma &amp; Speed Mechanics: FOMC &amp; CPI Event Volatility Crush &amp; Forward Variance Decomposition (d2V/dσ2 Vega Convexity Derivative Benchmark) — Figure 1: Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics FOMC &amp; CPI Event Volatility Crush... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vomma-zomma-speed-contango-roll-drag-and-term-structure-carry</loc>
    <lastmod>2026-11-05T14:34:35.467Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vomma-zomma-speed-contango-roll-drag-and-term-structure-carry.jpg</image:loc>
      <image:title>Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics Constant-Maturity Contango Roll D... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics Constant-Maturity Conta... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Third-Order%20%26%20Cross-Vega%20Greeks%20Vomma%20%28Volga%29%2C%20Zomma%20%26%20Speed%20Mechanics%20Constant-Maturity%20Contango%20Roll%20D%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AThird-Order%20%26%20Cross-Vega%20Greeks%20Vomma%20%28Volga%29%2C%20Zomma%20%26%20Speed%20Mechani%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20SABR%20Stochastic%20Volatility%20vs.%20Gath%7CVOMMA-ZOMMA-SPEED%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Nasdaq-100%20%28NDX%29%20vs.%20S%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A100%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVOMMA-ZOMMA-SPEED%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics Constant-Maturity Contango Roll D... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Third-Order &amp; Cross-Vega Greeks: Vomma (Volga), Zomma &amp; Speed Mechanics: Constant-Maturity Contango Roll Drag &amp; Backwardation Flip Triggers (d2V/dσ2 Vega Convexity Derivative Benchmark) — Figure 1: Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics Constant-Maturity Contango Roll D... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vomma-zomma-speed-clearing-margin-monte-carlo-stress-scenarios</loc>
    <lastmod>2026-11-05T14:34:35.470Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vomma-zomma-speed-clearing-margin-monte-carlo-stress-scenarios.jpg</image:loc>
      <image:title>Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics Clearinghouse Margin Monte Carlo... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics Clearinghouse Margin Mo... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Third-Order%20%26%20Cross-Vega%20Greeks%20Vomma%20%28Volga%29%2C%20Zomma%20%26%20Speed%20Mechanics%20Clearinghouse%20Margin%20Monte%20Carlo%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AThird-Order%20%26%20Cross-Vega%20Greeks%20Vomma%20%28Volga%29%2C%20Zomma%20%26%20Speed%20Mechani%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20SABR%20Stochastic%20Volatility%20vs.%20Gath%7CVOMMA-ZOMMA-SPEED%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Nasdaq-100%20%28NDX%29%20vs.%20S%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A100%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVOMMA-ZOMMA-SPEED%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics Clearinghouse Margin Monte Carlo... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Third-Order &amp; Cross-Vega Greeks: Vomma (Volga), Zomma &amp; Speed Mechanics: Clearinghouse Margin Monte Carlo Scenarios &amp; Intraday Call Triggers (d2V/dσ2 Vega Convexity Derivative Benchmark) — Figure 1: Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics Clearinghouse Margin Monte Carlo... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vomma-zomma-speed-strike-skew-convexity-and-butterfly-arbitrage</loc>
    <lastmod>2026-11-05T14:34:35.471Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vomma-zomma-speed-strike-skew-convexity-and-butterfly-arbitrage.jpg</image:loc>
      <image:title>Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics 25-Delta Strike Skew, Put Wing Co... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics 25-Delta Strike Skew, P... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Third-Order%20%26%20Cross-Vega%20Greeks%20Vomma%20%28Volga%29%2C%20Zomma%20%26%20Speed%20Mechanics%2025-Delta%20Strike%20Skew%2C%20Put%20Wing%20Co%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AThird-Order%20%26%20Cross-Vega%20Greeks%20Vomma%20%28Volga%29%2C%20Zomma%20%26%20Speed%20Mechani%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20SABR%20Stochastic%20Volatility%20vs.%20Gath%7CVOMMA-ZOMMA-SPEED%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Nasdaq-100%20%28NDX%29%20vs.%20S%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A100%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVOMMA-ZOMMA-SPEED%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics 25-Delta Strike Skew, Put Wing Co... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Third-Order &amp; Cross-Vega Greeks: Vomma (Volga), Zomma &amp; Speed Mechanics: 25-Delta Strike Skew, Put Wing Convexity &amp; No-Arbitrage Bounds (d2V/dσ2 Vega Convexity Derivative Benchmark) — Figure 1: Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics 25-Delta Strike Skew, Put Wing Co... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vomma-zomma-speed-dispersion-correlation-unwind-stress-audit</loc>
    <lastmod>2026-11-05T14:34:35.473Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vomma-zomma-speed-dispersion-correlation-unwind-stress-audit.jpg</image:loc>
      <image:title>Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics Correlation Spike Stress Audit &amp;... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics Correlation Spike Stres... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Third-Order%20%26%20Cross-Vega%20Greeks%20Vomma%20%28Volga%29%2C%20Zomma%20%26%20Speed%20Mechanics%20Correlation%20Spike%20Stress%20Audit%20%26%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AThird-Order%20%26%20Cross-Vega%20Greeks%20Vomma%20%28Volga%29%2C%20Zomma%20%26%20Speed%20Mechani%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20SABR%20Stochastic%20Volatility%20vs.%20Gath%7CVOMMA-ZOMMA-SPEED%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Nasdaq-100%20%28NDX%29%20vs.%20S%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A100%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVOMMA-ZOMMA-SPEED%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics Correlation Spike Stress Audit &amp;... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Third-Order &amp; Cross-Vega Greeks: Vomma (Volga), Zomma &amp; Speed Mechanics: Correlation Spike Stress Audit &amp; Institutional Dispersion Unwinds (d2V/dσ2 Vega Convexity Derivative Benchmark) — Figure 1: Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics Correlation Spike Stress Audit &amp;... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vomma-zomma-speed-350pm-moc-imbalance-and-cash-close-pinning</loc>
    <lastmod>2026-11-05T14:34:35.476Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vomma-zomma-speed-350pm-moc-imbalance-and-cash-close-pinning.jpg</image:loc>
      <image:title>Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics 3 50 PM ET Market-on-Close (MOC)... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics 3 50 PM ET Market-on-Cl... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Third-Order%20%26%20Cross-Vega%20Greeks%20Vomma%20%28Volga%29%2C%20Zomma%20%26%20Speed%20Mechanics%203%2050%20PM%20ET%20Market-on-Close%20%28MOC%29%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AThird-Order%20%26%20Cross-Vega%20Greeks%20Vomma%20%28Volga%29%2C%20Zomma%20%26%20Speed%20Mechani%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20SABR%20Stochastic%20Volatility%20vs.%20Gath%7CVOMMA-ZOMMA-SPEED%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Nasdaq-100%20%28NDX%29%20vs.%20S%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A100%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVOMMA-ZOMMA-SPEED%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics 3 50 PM ET Market-on-Close (MOC)... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Third-Order &amp; Cross-Vega Greeks: Vomma (Volga), Zomma &amp; Speed Mechanics: 3:50 PM ET Market-on-Close (MOC) Imbalance &amp; 4:00 PM Cash Settlement (d2V/dσ2 Vega Convexity Derivative Benchmark) — Figure 1: Third-Order &amp; Cross-Vega Greeks Vomma (Volga), Zomma &amp; Speed Mechanics 3 50 PM ET Market-on-Close (MOC)... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/sabr-svi-surface-dealer-gamma-hedging-and-es-futures-impact</loc>
    <lastmod>2026-10-22T08:14:17.363Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/sabr-svi-surface-dealer-gamma-hedging-and-es-futures-impact.jpg</image:loc>
      <image:title>SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting Dealer Delta/Gamma Hedging Eq... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting Dealer Delta/Gamma... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=SABR%20Stochastic%20Volatility%20vs.%20Gatheral%20SVI%20Arbitrage-Free%20Surface%20Fitting%20Dealer%20Delta%2FGamma%20Hedging%20Eq%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ASABR%20Stochastic%20Volatility%20vs.%20Gatheral%20SVI%20Arbitrage-Free%20Surface%20F%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Nasdaq-100%20%28NDX%29%20vs.%20SPX%20Implied%20Vo%7CSABR-SVI-SURFACE%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%20VVIX%20%28Volatility%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20INTL%20venues%20reduces%20execution&amp;metrics=vol-surface-desk%3A%3A100%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSABR-SVI-SURFACE%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting Dealer Delta/Gamma Hedging Eq... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting: Dealer Delta/Gamma Hedging Equations &amp; E-Mini S&amp;P 500 Futures Impact (0.0 bps Butterfly &amp; Calendar Arb Floor Benchmark) — Figure 1: SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting Dealer Delta/Gamma Hedging Eq... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/sabr-svi-surface-partial-derivative-formulas-and-surface-grid</loc>
    <lastmod>2026-11-05T14:34:35.478Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/sabr-svi-surface-partial-derivative-formulas-and-surface-grid.jpg</image:loc>
      <image:title>SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting Partial Derivative Formulas,... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting Partial Derivative... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=SABR%20Stochastic%20Volatility%20vs.%20Gatheral%20SVI%20Arbitrage-Free%20Surface%20Fitting%20Partial%20Derivative%20Formulas%2C%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ASABR%20Stochastic%20Volatility%20vs.%20Gatheral%20SVI%20Arbitrage-Free%20Surface%20F%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Nasdaq-100%20%28NDX%29%20vs.%20SPX%20Implied%20Vo%7CSABR-SVI-SURFACE%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%20VVIX%20%28Volatility%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20INTL%20venues%20reduces%20execution&amp;metrics=vol-surface-desk%3A%3A100%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSABR-SVI-SURFACE%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting Partial Derivative Formulas,... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting: Partial Derivative Formulas, Scaling Units &amp; Tenor Surface Grid (0.0 bps Butterfly &amp; Calendar Arb Floor Benchmark) — Figure 1: SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting Partial Derivative Formulas,... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/sabr-svi-surface-fomc-and-cpi-event-volatility-crush-math</loc>
    <lastmod>2026-11-05T14:34:35.480Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/sabr-svi-surface-fomc-and-cpi-event-volatility-crush-math.jpg</image:loc>
      <image:title>SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting FOMC &amp; CPI Event Volatility C... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting FOMC &amp; CPI Event Vo... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=SABR%20Stochastic%20Volatility%20vs.%20Gatheral%20SVI%20Arbitrage-Free%20Surface%20Fitting%20FOMC%20%26%20CPI%20Event%20Volatility%20C%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ASABR%20Stochastic%20Volatility%20vs.%20Gatheral%20SVI%20Arbitrage-Free%20Surface%20F%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Nasdaq-100%20%28NDX%29%20vs.%20SPX%20Implied%20Vo%7CSABR-SVI-SURFACE%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%20VVIX%20%28Volatility%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20INTL%20venues%20reduces%20execution&amp;metrics=vol-surface-desk%3A%3A100%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSABR-SVI-SURFACE%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting FOMC &amp; CPI Event Volatility C... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting: FOMC &amp; CPI Event Volatility Crush &amp; Forward Variance Decomposition (0.0 bps Butterfly &amp; Calendar Arb Floor Benchmark) — Figure 1: SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting FOMC &amp; CPI Event Volatility C... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/sabr-svi-surface-contango-roll-drag-and-term-structure-carry</loc>
    <lastmod>2026-11-05T14:34:35.482Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/sabr-svi-surface-contango-roll-drag-and-term-structure-carry.jpg</image:loc>
      <image:title>SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting Constant-Maturity Contango Ro... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting Constant-Maturity C... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=SABR%20Stochastic%20Volatility%20vs.%20Gatheral%20SVI%20Arbitrage-Free%20Surface%20Fitting%20Constant-Maturity%20Contango%20Ro%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ASABR%20Stochastic%20Volatility%20vs.%20Gatheral%20SVI%20Arbitrage-Free%20Surface%20F%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Nasdaq-100%20%28NDX%29%20vs.%20SPX%20Implied%20Vo%7CSABR-SVI-SURFACE%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%20VVIX%20%28Volatility%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20INTL%20venues%20reduces%20execution&amp;metrics=vol-surface-desk%3A%3A100%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSABR-SVI-SURFACE%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting Constant-Maturity Contango Ro... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting: Constant-Maturity Contango Roll Drag &amp; Backwardation Flip Triggers (0.0 bps Butterfly &amp; Calendar Arb Floor Benchmark) — Figure 1: SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting Constant-Maturity Contango Ro... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/sabr-svi-surface-clearing-margin-monte-carlo-stress-scenarios</loc>
    <lastmod>2026-11-05T14:34:35.484Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/sabr-svi-surface-clearing-margin-monte-carlo-stress-scenarios.jpg</image:loc>
      <image:title>SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting Clearinghouse Margin Monte Ca... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting Clearinghouse Margi... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=SABR%20Stochastic%20Volatility%20vs.%20Gatheral%20SVI%20Arbitrage-Free%20Surface%20Fitting%20Clearinghouse%20Margin%20Monte%20Ca%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ASABR%20Stochastic%20Volatility%20vs.%20Gatheral%20SVI%20Arbitrage-Free%20Surface%20F%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Nasdaq-100%20%28NDX%29%20vs.%20SPX%20Implied%20Vo%7CSABR-SVI-SURFACE%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%20VVIX%20%28Volatility%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20INTL%20venues%20reduces%20execution&amp;metrics=vol-surface-desk%3A%3A100%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSABR-SVI-SURFACE%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting Clearinghouse Margin Monte Ca... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting: Clearinghouse Margin Monte Carlo Scenarios &amp; Intraday Call Triggers (0.0 bps Butterfly &amp; Calendar Arb Floor Benchmark) — Figure 1: SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting Clearinghouse Margin Monte Ca... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/sabr-svi-surface-strike-skew-convexity-and-butterfly-arbitrage</loc>
    <lastmod>2026-11-05T14:34:35.486Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/sabr-svi-surface-strike-skew-convexity-and-butterfly-arbitrage.jpg</image:loc>
      <image:title>SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting 25-Delta Strike Skew, Put Win... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting 25-Delta Strike Ske... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=SABR%20Stochastic%20Volatility%20vs.%20Gatheral%20SVI%20Arbitrage-Free%20Surface%20Fitting%2025-Delta%20Strike%20Skew%2C%20Put%20Win%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ASABR%20Stochastic%20Volatility%20vs.%20Gatheral%20SVI%20Arbitrage-Free%20Surface%20F%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Nasdaq-100%20%28NDX%29%20vs.%20SPX%20Implied%20Vo%7CSABR-SVI-SURFACE%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%20VVIX%20%28Volatility%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20INTL%20venues%20reduces%20execution&amp;metrics=vol-surface-desk%3A%3A100%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSABR-SVI-SURFACE%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting 25-Delta Strike Skew, Put Win... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting: 25-Delta Strike Skew, Put Wing Convexity &amp; No-Arbitrage Bounds (0.0 bps Butterfly &amp; Calendar Arb Floor Benchmark) — Figure 1: SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting 25-Delta Strike Skew, Put Win... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/sabr-svi-surface-dispersion-correlation-unwind-stress-audit</loc>
    <lastmod>2026-11-05T14:34:35.488Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/sabr-svi-surface-dispersion-correlation-unwind-stress-audit.jpg</image:loc>
      <image:title>SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting Correlation Spike Stress Audi... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting Correlation Spike S... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=SABR%20Stochastic%20Volatility%20vs.%20Gatheral%20SVI%20Arbitrage-Free%20Surface%20Fitting%20Correlation%20Spike%20Stress%20Audi%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ASABR%20Stochastic%20Volatility%20vs.%20Gatheral%20SVI%20Arbitrage-Free%20Surface%20F%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Nasdaq-100%20%28NDX%29%20vs.%20SPX%20Implied%20Vo%7CSABR-SVI-SURFACE%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%20VVIX%20%28Volatility%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20INTL%20venues%20reduces%20execution&amp;metrics=vol-surface-desk%3A%3A100%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSABR-SVI-SURFACE%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting Correlation Spike Stress Audi... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting: Correlation Spike Stress Audit &amp; Institutional Dispersion Unwinds (0.0 bps Butterfly &amp; Calendar Arb Floor Benchmark) — Figure 1: SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting Correlation Spike Stress Audi... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/sabr-svi-surface-350pm-moc-imbalance-and-cash-close-pinning</loc>
    <lastmod>2026-11-05T14:34:35.490Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/sabr-svi-surface-350pm-moc-imbalance-and-cash-close-pinning.jpg</image:loc>
      <image:title>SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting 3 50 PM ET Market-on-Close (M... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting 3 50 PM ET Market-o... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=SABR%20Stochastic%20Volatility%20vs.%20Gatheral%20SVI%20Arbitrage-Free%20Surface%20Fitting%203%2050%20PM%20ET%20Market-on-Close%20%28M%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ASABR%20Stochastic%20Volatility%20vs.%20Gatheral%20SVI%20Arbitrage-Free%20Surface%20F%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Nasdaq-100%20%28NDX%29%20vs.%20SPX%20Implied%20Vo%7CSABR-SVI-SURFACE%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%20VVIX%20%28Volatility%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20INTL%20venues%20reduces%20execution&amp;metrics=vol-surface-desk%3A%3A100%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSABR-SVI-SURFACE%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting 3 50 PM ET Market-on-Close (M... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting: 3:50 PM ET Market-on-Close (MOC) Imbalance &amp; 4:00 PM Cash Settlement (0.0 bps Butterfly &amp; Calendar Arb Floor Benchmark) — Figure 1: SABR Stochastic Volatility vs. Gatheral SVI Arbitrage-Free Surface Fitting 3 50 PM ET Market-on-Close (M... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/ndx-qqq-gamma-dealer-gamma-hedging-and-es-futures-impact</loc>
    <lastmod>2026-10-22T08:14:17.363Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/ndx-qqq-gamma-dealer-gamma-hedging-and-es-futures-impact.jpg</image:loc>
      <image:title>Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning Dealer Delta/Gamma Hedging Equat... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning Dealer Delta/Gamma Hed... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Nasdaq-100%20%28NDX%29%20vs.%20SPX%20Implied%20Volatility%20Spread%20%26%20Tech%20Gamma%20Pinning%20Dealer%20Delta%2FGamma%20Hedging%20Equat%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ANasdaq-100%20%28NDX%29%20vs.%20SPX%20Implied%20Volatility%20Spread%20%26%20Tech%20Gamma%20Pinn%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%20VVIX%20%28Volatility%20of%20VIX%29%20%26%20Out%7CNDX-QQQ-GAMMA%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Over-the-Counter%20SPX%20V%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A100%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CNDX-QQQ-GAMMA%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning Dealer Delta/Gamma Hedging Equat... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning: Dealer Delta/Gamma Hedging Equations &amp; E-Mini S&amp;P 500 Futures Impact (+4.2 pts VXN over VIX Volatility Spread Benchmark) — Figure 1: Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning Dealer Delta/Gamma Hedging Equat... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/ndx-qqq-gamma-partial-derivative-formulas-and-surface-grid</loc>
    <lastmod>2026-11-05T14:34:35.492Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/ndx-qqq-gamma-partial-derivative-formulas-and-surface-grid.jpg</image:loc>
      <image:title>Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning Partial Derivative Formulas, Sca... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning Partial Derivative For... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Nasdaq-100%20%28NDX%29%20vs.%20SPX%20Implied%20Volatility%20Spread%20%26%20Tech%20Gamma%20Pinning%20Partial%20Derivative%20Formulas%2C%20Sca%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ANasdaq-100%20%28NDX%29%20vs.%20SPX%20Implied%20Volatility%20Spread%20%26%20Tech%20Gamma%20Pinn%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%20VVIX%20%28Volatility%20of%20VIX%29%20%26%20Out%7CNDX-QQQ-GAMMA%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Over-the-Counter%20SPX%20V%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A100%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CNDX-QQQ-GAMMA%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning Partial Derivative Formulas, Sca... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning: Partial Derivative Formulas, Scaling Units &amp; Tenor Surface Grid (+4.2 pts VXN over VIX Volatility Spread Benchmark) — Figure 1: Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning Partial Derivative Formulas, Sca... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/ndx-qqq-gamma-fomc-and-cpi-event-volatility-crush-math</loc>
    <lastmod>2026-11-05T14:34:35.495Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/ndx-qqq-gamma-fomc-and-cpi-event-volatility-crush-math.jpg</image:loc>
      <image:title>Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning FOMC &amp; CPI Event Volatility Crus... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning FOMC &amp; CPI Event Volat... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Nasdaq-100%20%28NDX%29%20vs.%20SPX%20Implied%20Volatility%20Spread%20%26%20Tech%20Gamma%20Pinning%20FOMC%20%26%20CPI%20Event%20Volatility%20Crus%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ANasdaq-100%20%28NDX%29%20vs.%20SPX%20Implied%20Volatility%20Spread%20%26%20Tech%20Gamma%20Pinn%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%20VVIX%20%28Volatility%20of%20VIX%29%20%26%20Out%7CNDX-QQQ-GAMMA%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Over-the-Counter%20SPX%20V%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A100%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CNDX-QQQ-GAMMA%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning FOMC &amp; CPI Event Volatility Crus... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning: FOMC &amp; CPI Event Volatility Crush &amp; Forward Variance Decomposition (+4.2 pts VXN over VIX Volatility Spread Benchmark) — Figure 1: Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning FOMC &amp; CPI Event Volatility Crus... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/ndx-qqq-gamma-contango-roll-drag-and-term-structure-carry</loc>
    <lastmod>2026-11-05T14:34:35.497Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/ndx-qqq-gamma-contango-roll-drag-and-term-structure-carry.jpg</image:loc>
      <image:title>Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning Constant-Maturity Contango Roll... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning Constant-Maturity Cont... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Nasdaq-100%20%28NDX%29%20vs.%20SPX%20Implied%20Volatility%20Spread%20%26%20Tech%20Gamma%20Pinning%20Constant-Maturity%20Contango%20Roll%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ANasdaq-100%20%28NDX%29%20vs.%20SPX%20Implied%20Volatility%20Spread%20%26%20Tech%20Gamma%20Pinn%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%20VVIX%20%28Volatility%20of%20VIX%29%20%26%20Out%7CNDX-QQQ-GAMMA%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Over-the-Counter%20SPX%20V%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A100%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CNDX-QQQ-GAMMA%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning Constant-Maturity Contango Roll... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning: Constant-Maturity Contango Roll Drag &amp; Backwardation Flip Triggers (+4.2 pts VXN over VIX Volatility Spread Benchmark) — Figure 1: Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning Constant-Maturity Contango Roll... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/ndx-qqq-gamma-clearing-margin-monte-carlo-stress-scenarios</loc>
    <lastmod>2026-11-05T14:34:35.499Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/ndx-qqq-gamma-clearing-margin-monte-carlo-stress-scenarios.jpg</image:loc>
      <image:title>Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning Clearinghouse Margin Monte Carlo... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning Clearinghouse Margin M... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Nasdaq-100%20%28NDX%29%20vs.%20SPX%20Implied%20Volatility%20Spread%20%26%20Tech%20Gamma%20Pinning%20Clearinghouse%20Margin%20Monte%20Carlo%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ANasdaq-100%20%28NDX%29%20vs.%20SPX%20Implied%20Volatility%20Spread%20%26%20Tech%20Gamma%20Pinn%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%20VVIX%20%28Volatility%20of%20VIX%29%20%26%20Out%7CNDX-QQQ-GAMMA%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Over-the-Counter%20SPX%20V%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A100%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CNDX-QQQ-GAMMA%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning Clearinghouse Margin Monte Carlo... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning: Clearinghouse Margin Monte Carlo Scenarios &amp; Intraday Call Triggers (+4.2 pts VXN over VIX Volatility Spread Benchmark) — Figure 1: Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning Clearinghouse Margin Monte Carlo... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/ndx-qqq-gamma-strike-skew-convexity-and-butterfly-arbitrage</loc>
    <lastmod>2026-11-05T14:34:35.501Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/ndx-qqq-gamma-strike-skew-convexity-and-butterfly-arbitrage.jpg</image:loc>
      <image:title>Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning 25-Delta Strike Skew, Put Wing C... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning 25-Delta Strike Skew,... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Nasdaq-100%20%28NDX%29%20vs.%20SPX%20Implied%20Volatility%20Spread%20%26%20Tech%20Gamma%20Pinning%2025-Delta%20Strike%20Skew%2C%20Put%20Wing%20C%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ANasdaq-100%20%28NDX%29%20vs.%20SPX%20Implied%20Volatility%20Spread%20%26%20Tech%20Gamma%20Pinn%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%20VVIX%20%28Volatility%20of%20VIX%29%20%26%20Out%7CNDX-QQQ-GAMMA%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Over-the-Counter%20SPX%20V%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A100%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CNDX-QQQ-GAMMA%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning 25-Delta Strike Skew, Put Wing C... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning: 25-Delta Strike Skew, Put Wing Convexity &amp; No-Arbitrage Bounds (+4.2 pts VXN over VIX Volatility Spread Benchmark) — Figure 1: Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning 25-Delta Strike Skew, Put Wing C... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/ndx-qqq-gamma-dispersion-correlation-unwind-stress-audit</loc>
    <lastmod>2026-11-05T14:34:35.503Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/ndx-qqq-gamma-dispersion-correlation-unwind-stress-audit.jpg</image:loc>
      <image:title>Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning Correlation Spike Stress Audit &amp;... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning Correlation Spike Stre... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Nasdaq-100%20%28NDX%29%20vs.%20SPX%20Implied%20Volatility%20Spread%20%26%20Tech%20Gamma%20Pinning%20Correlation%20Spike%20Stress%20Audit%20%26%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ANasdaq-100%20%28NDX%29%20vs.%20SPX%20Implied%20Volatility%20Spread%20%26%20Tech%20Gamma%20Pinn%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%20VVIX%20%28Volatility%20of%20VIX%29%20%26%20Out%7CNDX-QQQ-GAMMA%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Over-the-Counter%20SPX%20V%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A100%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CNDX-QQQ-GAMMA%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning Correlation Spike Stress Audit &amp;... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning: Correlation Spike Stress Audit &amp; Institutional Dispersion Unwinds (+4.2 pts VXN over VIX Volatility Spread Benchmark) — Figure 1: Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning Correlation Spike Stress Audit &amp;... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/ndx-qqq-gamma-350pm-moc-imbalance-and-cash-close-pinning</loc>
    <lastmod>2026-11-05T14:34:35.505Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/ndx-qqq-gamma-350pm-moc-imbalance-and-cash-close-pinning.jpg</image:loc>
      <image:title>Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning 3 50 PM ET Market-on-Close (MOC)... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning 3 50 PM ET Market-on-C... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Nasdaq-100%20%28NDX%29%20vs.%20SPX%20Implied%20Volatility%20Spread%20%26%20Tech%20Gamma%20Pinning%203%2050%20PM%20ET%20Market-on-Close%20%28MOC%29%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ANasdaq-100%20%28NDX%29%20vs.%20SPX%20Implied%20Volatility%20Spread%20%26%20Tech%20Gamma%20Pinn%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%20VVIX%20%28Volatility%20of%20VIX%29%20%26%20Out%7CNDX-QQQ-GAMMA%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Over-the-Counter%20SPX%20V%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A100%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CNDX-QQQ-GAMMA%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning 3 50 PM ET Market-on-Close (MOC)... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning: 3:50 PM ET Market-on-Close (MOC) Imbalance &amp; 4:00 PM Cash Settlement (+4.2 pts VXN over VIX Volatility Spread Benchmark) — Figure 1: Nasdaq-100 (NDX) vs. SPX Implied Volatility Spread &amp; Tech Gamma Pinning 3 50 PM ET Market-on-Close (MOC)... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vvix-vol-of-vol-dealer-gamma-hedging-and-es-futures-impact</loc>
    <lastmod>2026-10-22T08:14:17.363Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vvix-vol-of-vol-dealer-gamma-hedging-and-es-futures-impact.jpg</image:loc>
      <image:title>Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity Dealer Delta/Gamma Hedging Equations... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity Dealer Delta/Gamma Hedging... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%20VVIX%20%28Volatility%20of%20VIX%29%20%26%20Out-of-the-Money%20VIX%20Call%20Convexity%20Dealer%20Delta%2FGamma%20Hedging%20Equations%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%20VVIX%20%28Volatility%20of%20VIX%29%20%26%20Out-of-the-Money%20VIX%20Call%20Convexity%20%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Over-the-Counter%20SPX%20Variance%20Swaps%7CVVIX-VOL-OF-VOL%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Institutional%20Quarterl%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3ATier-1%20Verified%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVVIX-VOL-OF-VOL%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity Dealer Delta/Gamma Hedging Equations... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity: Dealer Delta/Gamma Hedging Equations &amp; E-Mini S&amp;P 500 Futures Impact (96.4 30-Day VVIX Benchmark Benchmark) — Figure 1: Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity Dealer Delta/Gamma Hedging Equations... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vvix-vol-of-vol-partial-derivative-formulas-and-surface-grid</loc>
    <lastmod>2026-11-05T14:34:35.508Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vvix-vol-of-vol-partial-derivative-formulas-and-surface-grid.jpg</image:loc>
      <image:title>Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity Partial Derivative Formulas, Scaling... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity Partial Derivative Formula... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%20VVIX%20%28Volatility%20of%20VIX%29%20%26%20Out-of-the-Money%20VIX%20Call%20Convexity%20Partial%20Derivative%20Formulas%2C%20Scaling%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%20VVIX%20%28Volatility%20of%20VIX%29%20%26%20Out-of-the-Money%20VIX%20Call%20Convexity%20%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Over-the-Counter%20SPX%20Variance%20Swaps%7CVVIX-VOL-OF-VOL%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Institutional%20Quarterl%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3ATier-1%20Verified%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVVIX-VOL-OF-VOL%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity Partial Derivative Formulas, Scaling... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity: Partial Derivative Formulas, Scaling Units &amp; Tenor Surface Grid (96.4 30-Day VVIX Benchmark Benchmark) — Figure 1: Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity Partial Derivative Formulas, Scaling... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vvix-vol-of-vol-fomc-and-cpi-event-volatility-crush-math</loc>
    <lastmod>2026-11-05T14:34:35.510Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vvix-vol-of-vol-fomc-and-cpi-event-volatility-crush-math.jpg</image:loc>
      <image:title>Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity FOMC &amp; CPI Event Volatility Crush &amp;... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity FOMC &amp; CPI Event Volatilit... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%20VVIX%20%28Volatility%20of%20VIX%29%20%26%20Out-of-the-Money%20VIX%20Call%20Convexity%20FOMC%20%26%20CPI%20Event%20Volatility%20Crush%20%26%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%20VVIX%20%28Volatility%20of%20VIX%29%20%26%20Out-of-the-Money%20VIX%20Call%20Convexity%20%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Over-the-Counter%20SPX%20Variance%20Swaps%7CVVIX-VOL-OF-VOL%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Institutional%20Quarterl%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3ATier-1%20Verified%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVVIX-VOL-OF-VOL%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity FOMC &amp; CPI Event Volatility Crush &amp;... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity: FOMC &amp; CPI Event Volatility Crush &amp; Forward Variance Decomposition (96.4 30-Day VVIX Benchmark Benchmark) — Figure 1: Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity FOMC &amp; CPI Event Volatility Crush &amp;... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vvix-vol-of-vol-contango-roll-drag-and-term-structure-carry</loc>
    <lastmod>2026-11-05T14:34:35.512Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vvix-vol-of-vol-contango-roll-drag-and-term-structure-carry.jpg</image:loc>
      <image:title>Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity Constant-Maturity Contango Roll Drag... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity Constant-Maturity Contango... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%20VVIX%20%28Volatility%20of%20VIX%29%20%26%20Out-of-the-Money%20VIX%20Call%20Convexity%20Constant-Maturity%20Contango%20Roll%20Drag%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%20VVIX%20%28Volatility%20of%20VIX%29%20%26%20Out-of-the-Money%20VIX%20Call%20Convexity%20%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Over-the-Counter%20SPX%20Variance%20Swaps%7CVVIX-VOL-OF-VOL%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Institutional%20Quarterl%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3ATier-1%20Verified%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVVIX-VOL-OF-VOL%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity Constant-Maturity Contango Roll Drag... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity: Constant-Maturity Contango Roll Drag &amp; Backwardation Flip Triggers (96.4 30-Day VVIX Benchmark Benchmark) — Figure 1: Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity Constant-Maturity Contango Roll Drag... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vvix-vol-of-vol-clearing-margin-monte-carlo-stress-scenarios</loc>
    <lastmod>2026-11-05T14:34:35.514Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vvix-vol-of-vol-clearing-margin-monte-carlo-stress-scenarios.jpg</image:loc>
      <image:title>Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity Clearinghouse Margin Monte Carlo Sce... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity Clearinghouse Margin Monte... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%20VVIX%20%28Volatility%20of%20VIX%29%20%26%20Out-of-the-Money%20VIX%20Call%20Convexity%20Clearinghouse%20Margin%20Monte%20Carlo%20Sce%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%20VVIX%20%28Volatility%20of%20VIX%29%20%26%20Out-of-the-Money%20VIX%20Call%20Convexity%20%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Over-the-Counter%20SPX%20Variance%20Swaps%7CVVIX-VOL-OF-VOL%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Institutional%20Quarterl%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3ATier-1%20Verified%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVVIX-VOL-OF-VOL%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity Clearinghouse Margin Monte Carlo Sce... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity: Clearinghouse Margin Monte Carlo Scenarios &amp; Intraday Call Triggers (96.4 30-Day VVIX Benchmark Benchmark) — Figure 1: Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity Clearinghouse Margin Monte Carlo Sce... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vvix-vol-of-vol-strike-skew-convexity-and-butterfly-arbitrage</loc>
    <lastmod>2026-11-05T14:34:35.516Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vvix-vol-of-vol-strike-skew-convexity-and-butterfly-arbitrage.jpg</image:loc>
      <image:title>Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity 25-Delta Strike Skew, Put Wing Conve... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity 25-Delta Strike Skew, Put... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%20VVIX%20%28Volatility%20of%20VIX%29%20%26%20Out-of-the-Money%20VIX%20Call%20Convexity%2025-Delta%20Strike%20Skew%2C%20Put%20Wing%20Conve%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%20VVIX%20%28Volatility%20of%20VIX%29%20%26%20Out-of-the-Money%20VIX%20Call%20Convexity%20%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Over-the-Counter%20SPX%20Variance%20Swaps%7CVVIX-VOL-OF-VOL%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Institutional%20Quarterl%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3ATier-1%20Verified%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVVIX-VOL-OF-VOL%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity 25-Delta Strike Skew, Put Wing Conve... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity: 25-Delta Strike Skew, Put Wing Convexity &amp; No-Arbitrage Bounds (96.4 30-Day VVIX Benchmark Benchmark) — Figure 1: Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity 25-Delta Strike Skew, Put Wing Conve... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vvix-vol-of-vol-dispersion-correlation-unwind-stress-audit</loc>
    <lastmod>2026-11-05T14:34:35.518Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vvix-vol-of-vol-dispersion-correlation-unwind-stress-audit.jpg</image:loc>
      <image:title>Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity Correlation Spike Stress Audit &amp; Ins... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity Correlation Spike Stress A... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%20VVIX%20%28Volatility%20of%20VIX%29%20%26%20Out-of-the-Money%20VIX%20Call%20Convexity%20Correlation%20Spike%20Stress%20Audit%20%26%20Ins%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%20VVIX%20%28Volatility%20of%20VIX%29%20%26%20Out-of-the-Money%20VIX%20Call%20Convexity%20%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Over-the-Counter%20SPX%20Variance%20Swaps%7CVVIX-VOL-OF-VOL%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Institutional%20Quarterl%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3ATier-1%20Verified%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVVIX-VOL-OF-VOL%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity Correlation Spike Stress Audit &amp; Ins... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity: Correlation Spike Stress Audit &amp; Institutional Dispersion Unwinds (96.4 30-Day VVIX Benchmark Benchmark) — Figure 1: Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity Correlation Spike Stress Audit &amp; Ins... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/vvix-vol-of-vol-350pm-moc-imbalance-and-cash-close-pinning</loc>
    <lastmod>2026-11-05T14:34:35.520Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/vvix-vol-of-vol-350pm-moc-imbalance-and-cash-close-pinning.jpg</image:loc>
      <image:title>Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity 3 50 PM ET Market-on-Close (MOC) Imb... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity 3 50 PM ET Market-on-Close... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Cboe%20VVIX%20%28Volatility%20of%20VIX%29%20%26%20Out-of-the-Money%20VIX%20Call%20Convexity%203%2050%20PM%20ET%20Market-on-Close%20%28MOC%29%20Imb%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACboe%20VVIX%20%28Volatility%20of%20VIX%29%20%26%20Out-of-the-Money%20VIX%20Call%20Convexity%20%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Over-the-Counter%20SPX%20Variance%20Swaps%7CVVIX-VOL-OF-VOL%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Institutional%20Quarterl%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3ATier-1%20Verified%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVVIX-VOL-OF-VOL%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity 3 50 PM ET Market-on-Close (MOC) Imb... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity: 3:50 PM ET Market-on-Close (MOC) Imbalance &amp; 4:00 PM Cash Settlement (96.4 30-Day VVIX Benchmark Benchmark) — Figure 1: Cboe VVIX (Volatility of VIX) &amp; Out-of-the-Money VIX Call Convexity 3 50 PM ET Market-on-Close (MOC) Imb... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/variance-swaps-dealer-gamma-hedging-and-es-futures-impact</loc>
    <lastmod>2026-10-22T08:14:17.363Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/variance-swaps-dealer-gamma-hedging-and-es-futures-impact.jpg</image:loc>
      <image:title>Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional Dealer Delta/Gamma Hedging Equ... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional Dealer Delta/Gamma H... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Over-the-Counter%20SPX%20Variance%20Swaps%20vs.%20Corridor%20Variance%20%26%20Vega%20Notional%20Dealer%20Delta%2FGamma%20Hedging%20Equ%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AOver-the-Counter%20SPX%20Variance%20Swaps%20vs.%20Corridor%20Variance%20%26%20Vega%20Not%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Institutional%20Quarterly%20Equity%20Coll%7CVARIANCE-SWAPS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20CME%20SOFR%20Options%20%26%20Int%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20INTL%20venues%20reduces%20execution&amp;metrics=vol-surface-desk%3A%3ATier-1%20Verified%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVARIANCE-SWAPS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional Dealer Delta/Gamma Hedging Equ... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional: Dealer Delta/Gamma Hedging Equations &amp; E-Mini S&amp;P 500 Futures Impact (σ2 - K2 Variance Payoff Scaling Benchmark) — Figure 1: Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional Dealer Delta/Gamma Hedging Equ... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/variance-swaps-partial-derivative-formulas-and-surface-grid</loc>
    <lastmod>2026-11-05T14:34:35.522Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/variance-swaps-partial-derivative-formulas-and-surface-grid.jpg</image:loc>
      <image:title>Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional Partial Derivative Formulas, S... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional Partial Derivative F... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Over-the-Counter%20SPX%20Variance%20Swaps%20vs.%20Corridor%20Variance%20%26%20Vega%20Notional%20Partial%20Derivative%20Formulas%2C%20S%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AOver-the-Counter%20SPX%20Variance%20Swaps%20vs.%20Corridor%20Variance%20%26%20Vega%20Not%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Institutional%20Quarterly%20Equity%20Coll%7CVARIANCE-SWAPS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20CME%20SOFR%20Options%20%26%20Int%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20INTL%20venues%20reduces%20execution&amp;metrics=vol-surface-desk%3A%3ATier-1%20Verified%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVARIANCE-SWAPS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional Partial Derivative Formulas, S... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional: Partial Derivative Formulas, Scaling Units &amp; Tenor Surface Grid (σ2 - K2 Variance Payoff Scaling Benchmark) — Figure 1: Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional Partial Derivative Formulas, S... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/variance-swaps-fomc-and-cpi-event-volatility-crush-math</loc>
    <lastmod>2026-11-05T14:34:35.524Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/variance-swaps-fomc-and-cpi-event-volatility-crush-math.jpg</image:loc>
      <image:title>Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional FOMC &amp; CPI Event Volatility Cr... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional FOMC &amp; CPI Event Vol... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Over-the-Counter%20SPX%20Variance%20Swaps%20vs.%20Corridor%20Variance%20%26%20Vega%20Notional%20FOMC%20%26%20CPI%20Event%20Volatility%20Cr%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AOver-the-Counter%20SPX%20Variance%20Swaps%20vs.%20Corridor%20Variance%20%26%20Vega%20Not%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Institutional%20Quarterly%20Equity%20Coll%7CVARIANCE-SWAPS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20CME%20SOFR%20Options%20%26%20Int%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20INTL%20venues%20reduces%20execution&amp;metrics=vol-surface-desk%3A%3ATier-1%20Verified%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVARIANCE-SWAPS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional FOMC &amp; CPI Event Volatility Cr... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional: FOMC &amp; CPI Event Volatility Crush &amp; Forward Variance Decomposition (σ2 - K2 Variance Payoff Scaling Benchmark) — Figure 1: Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional FOMC &amp; CPI Event Volatility Cr... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/variance-swaps-contango-roll-drag-and-term-structure-carry</loc>
    <lastmod>2026-11-05T14:34:35.526Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/variance-swaps-contango-roll-drag-and-term-structure-carry.jpg</image:loc>
      <image:title>Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional Constant-Maturity Contango Rol... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional Constant-Maturity Co... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Over-the-Counter%20SPX%20Variance%20Swaps%20vs.%20Corridor%20Variance%20%26%20Vega%20Notional%20Constant-Maturity%20Contango%20Rol%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AOver-the-Counter%20SPX%20Variance%20Swaps%20vs.%20Corridor%20Variance%20%26%20Vega%20Not%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Institutional%20Quarterly%20Equity%20Coll%7CVARIANCE-SWAPS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20CME%20SOFR%20Options%20%26%20Int%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20INTL%20venues%20reduces%20execution&amp;metrics=vol-surface-desk%3A%3ATier-1%20Verified%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVARIANCE-SWAPS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional Constant-Maturity Contango Rol... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional: Constant-Maturity Contango Roll Drag &amp; Backwardation Flip Triggers (σ2 - K2 Variance Payoff Scaling Benchmark) — Figure 1: Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional Constant-Maturity Contango Rol... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/variance-swaps-clearing-margin-monte-carlo-stress-scenarios</loc>
    <lastmod>2026-11-05T14:34:35.528Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/variance-swaps-clearing-margin-monte-carlo-stress-scenarios.jpg</image:loc>
      <image:title>Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional Clearinghouse Margin Monte Car... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional Clearinghouse Margin... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Over-the-Counter%20SPX%20Variance%20Swaps%20vs.%20Corridor%20Variance%20%26%20Vega%20Notional%20Clearinghouse%20Margin%20Monte%20Car%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AOver-the-Counter%20SPX%20Variance%20Swaps%20vs.%20Corridor%20Variance%20%26%20Vega%20Not%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Institutional%20Quarterly%20Equity%20Coll%7CVARIANCE-SWAPS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20CME%20SOFR%20Options%20%26%20Int%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20INTL%20venues%20reduces%20execution&amp;metrics=vol-surface-desk%3A%3ATier-1%20Verified%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVARIANCE-SWAPS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional Clearinghouse Margin Monte Car... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional: Clearinghouse Margin Monte Carlo Scenarios &amp; Intraday Call Triggers (σ2 - K2 Variance Payoff Scaling Benchmark) — Figure 1: Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional Clearinghouse Margin Monte Car... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/variance-swaps-strike-skew-convexity-and-butterfly-arbitrage</loc>
    <lastmod>2026-11-05T14:34:35.530Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/variance-swaps-strike-skew-convexity-and-butterfly-arbitrage.jpg</image:loc>
      <image:title>Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional 25-Delta Strike Skew, Put Wing... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional 25-Delta Strike Skew... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Over-the-Counter%20SPX%20Variance%20Swaps%20vs.%20Corridor%20Variance%20%26%20Vega%20Notional%2025-Delta%20Strike%20Skew%2C%20Put%20Wing%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AOver-the-Counter%20SPX%20Variance%20Swaps%20vs.%20Corridor%20Variance%20%26%20Vega%20Not%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Institutional%20Quarterly%20Equity%20Coll%7CVARIANCE-SWAPS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20CME%20SOFR%20Options%20%26%20Int%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20INTL%20venues%20reduces%20execution&amp;metrics=vol-surface-desk%3A%3ATier-1%20Verified%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVARIANCE-SWAPS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional 25-Delta Strike Skew, Put Wing... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional: 25-Delta Strike Skew, Put Wing Convexity &amp; No-Arbitrage Bounds (σ2 - K2 Variance Payoff Scaling Benchmark) — Figure 1: Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional 25-Delta Strike Skew, Put Wing... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/variance-swaps-dispersion-correlation-unwind-stress-audit</loc>
    <lastmod>2026-11-05T14:34:35.532Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/variance-swaps-dispersion-correlation-unwind-stress-audit.jpg</image:loc>
      <image:title>Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional Correlation Spike Stress Audit... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional Correlation Spike St... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Over-the-Counter%20SPX%20Variance%20Swaps%20vs.%20Corridor%20Variance%20%26%20Vega%20Notional%20Correlation%20Spike%20Stress%20Audit%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AOver-the-Counter%20SPX%20Variance%20Swaps%20vs.%20Corridor%20Variance%20%26%20Vega%20Not%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Institutional%20Quarterly%20Equity%20Coll%7CVARIANCE-SWAPS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20CME%20SOFR%20Options%20%26%20Int%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20INTL%20venues%20reduces%20execution&amp;metrics=vol-surface-desk%3A%3ATier-1%20Verified%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVARIANCE-SWAPS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional Correlation Spike Stress Audit... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional: Correlation Spike Stress Audit &amp; Institutional Dispersion Unwinds (σ2 - K2 Variance Payoff Scaling Benchmark) — Figure 1: Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional Correlation Spike Stress Audit... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/variance-swaps-350pm-moc-imbalance-and-cash-close-pinning</loc>
    <lastmod>2026-11-05T14:34:35.534Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/variance-swaps-350pm-moc-imbalance-and-cash-close-pinning.jpg</image:loc>
      <image:title>Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional 3 50 PM ET Market-on-Close (MO... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional 3 50 PM ET Market-on... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Over-the-Counter%20SPX%20Variance%20Swaps%20vs.%20Corridor%20Variance%20%26%20Vega%20Notional%203%2050%20PM%20ET%20Market-on-Close%20%28MO%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AOver-the-Counter%20SPX%20Variance%20Swaps%20vs.%20Corridor%20Variance%20%26%20Vega%20Not%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Institutional%20Quarterly%20Equity%20Coll%7CVARIANCE-SWAPS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20CME%20SOFR%20Options%20%26%20Int%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20INTL%20venues%20reduces%20execution&amp;metrics=vol-surface-desk%3A%3ATier-1%20Verified%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CVARIANCE-SWAPS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional 3 50 PM ET Market-on-Close (MO... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional: 3:50 PM ET Market-on-Close (MOC) Imbalance &amp; 4:00 PM Cash Settlement (σ2 - K2 Variance Payoff Scaling Benchmark) — Figure 1: Over-the-Counter SPX Variance Swaps vs. Corridor Variance &amp; Vega Notional 3 50 PM ET Market-on-Close (MO... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/jpm-collar-heqt-dealer-gamma-hedging-and-es-futures-impact</loc>
    <lastmod>2026-10-22T08:14:17.363Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/jpm-collar-heqt-dealer-gamma-hedging-and-es-futures-impact.jpg</image:loc>
      <image:title>Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure Dealer Delta/Gamma Hedging E... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure Dealer Delta/Gamma... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Institutional%20Quarterly%20Equity%20Collar%20Rolls%20%26%20Strike%20Pinning%20Microstructure%20Dealer%20Delta%2FGamma%20Hedging%20E%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AInstitutional%20Quarterly%20Equity%20Collar%20Rolls%20%26%20Strike%20Pinning%20Microst%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20CME%20SOFR%20Options%20%26%20Interest%20Rate%20Sw%7CJPM-COLLAR-HEQT%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20FINRA%20Rule%204210%20Portfo%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A4210%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CJPM-COLLAR-HEQT%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure Dealer Delta/Gamma Hedging E... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure: Dealer Delta/Gamma Hedging Equations &amp; E-Mini S&amp;P 500 Futures Impact ($16.0B+ Quarterly SPX Collar Notional Benchmark) — Figure 1: Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure Dealer Delta/Gamma Hedging E... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/jpm-collar-heqt-partial-derivative-formulas-and-surface-grid</loc>
    <lastmod>2026-11-05T14:34:35.536Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/jpm-collar-heqt-partial-derivative-formulas-and-surface-grid.jpg</image:loc>
      <image:title>Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure Partial Derivative Formulas,... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure Partial Derivative... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Institutional%20Quarterly%20Equity%20Collar%20Rolls%20%26%20Strike%20Pinning%20Microstructure%20Partial%20Derivative%20Formulas%2C%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AInstitutional%20Quarterly%20Equity%20Collar%20Rolls%20%26%20Strike%20Pinning%20Microst%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20CME%20SOFR%20Options%20%26%20Interest%20Rate%20Sw%7CJPM-COLLAR-HEQT%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20FINRA%20Rule%204210%20Portfo%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A4210%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CJPM-COLLAR-HEQT%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure Partial Derivative Formulas,... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure: Partial Derivative Formulas, Scaling Units &amp; Tenor Surface Grid ($16.0B+ Quarterly SPX Collar Notional Benchmark) — Figure 1: Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure Partial Derivative Formulas,... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/jpm-collar-heqt-fomc-and-cpi-event-volatility-crush-math</loc>
    <lastmod>2026-11-05T14:34:35.538Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/jpm-collar-heqt-fomc-and-cpi-event-volatility-crush-math.jpg</image:loc>
      <image:title>Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure FOMC &amp; CPI Event Volatility... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure FOMC &amp; CPI Event V... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Institutional%20Quarterly%20Equity%20Collar%20Rolls%20%26%20Strike%20Pinning%20Microstructure%20FOMC%20%26%20CPI%20Event%20Volatility%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AInstitutional%20Quarterly%20Equity%20Collar%20Rolls%20%26%20Strike%20Pinning%20Microst%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20CME%20SOFR%20Options%20%26%20Interest%20Rate%20Sw%7CJPM-COLLAR-HEQT%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20FINRA%20Rule%204210%20Portfo%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A4210%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CJPM-COLLAR-HEQT%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure FOMC &amp; CPI Event Volatility... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure: FOMC &amp; CPI Event Volatility Crush &amp; Forward Variance Decomposition ($16.0B+ Quarterly SPX Collar Notional Benchmark) — Figure 1: Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure FOMC &amp; CPI Event Volatility... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/jpm-collar-heqt-contango-roll-drag-and-term-structure-carry</loc>
    <lastmod>2026-11-05T14:34:35.541Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/jpm-collar-heqt-contango-roll-drag-and-term-structure-carry.jpg</image:loc>
      <image:title>Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure Constant-Maturity Contango R... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure Constant-Maturity... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Institutional%20Quarterly%20Equity%20Collar%20Rolls%20%26%20Strike%20Pinning%20Microstructure%20Constant-Maturity%20Contango%20R%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AInstitutional%20Quarterly%20Equity%20Collar%20Rolls%20%26%20Strike%20Pinning%20Microst%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20CME%20SOFR%20Options%20%26%20Interest%20Rate%20Sw%7CJPM-COLLAR-HEQT%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20FINRA%20Rule%204210%20Portfo%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A4210%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CJPM-COLLAR-HEQT%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure Constant-Maturity Contango R... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure: Constant-Maturity Contango Roll Drag &amp; Backwardation Flip Triggers ($16.0B+ Quarterly SPX Collar Notional Benchmark) — Figure 1: Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure Constant-Maturity Contango R... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/jpm-collar-heqt-clearing-margin-monte-carlo-stress-scenarios</loc>
    <lastmod>2026-11-05T14:34:35.543Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/jpm-collar-heqt-clearing-margin-monte-carlo-stress-scenarios.jpg</image:loc>
      <image:title>Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure Clearinghouse Margin Monte C... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure Clearinghouse Marg... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Institutional%20Quarterly%20Equity%20Collar%20Rolls%20%26%20Strike%20Pinning%20Microstructure%20Clearinghouse%20Margin%20Monte%20C%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AInstitutional%20Quarterly%20Equity%20Collar%20Rolls%20%26%20Strike%20Pinning%20Microst%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20CME%20SOFR%20Options%20%26%20Interest%20Rate%20Sw%7CJPM-COLLAR-HEQT%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20FINRA%20Rule%204210%20Portfo%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A4210%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CJPM-COLLAR-HEQT%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure Clearinghouse Margin Monte C... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure: Clearinghouse Margin Monte Carlo Scenarios &amp; Intraday Call Triggers ($16.0B+ Quarterly SPX Collar Notional Benchmark) — Figure 1: Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure Clearinghouse Margin Monte C... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/jpm-collar-heqt-strike-skew-convexity-and-butterfly-arbitrage</loc>
    <lastmod>2026-11-05T14:34:35.545Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/jpm-collar-heqt-strike-skew-convexity-and-butterfly-arbitrage.jpg</image:loc>
      <image:title>Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure 25-Delta Strike Skew, Put Wi... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure 25-Delta Strike Sk... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Institutional%20Quarterly%20Equity%20Collar%20Rolls%20%26%20Strike%20Pinning%20Microstructure%2025-Delta%20Strike%20Skew%2C%20Put%20Wi%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AInstitutional%20Quarterly%20Equity%20Collar%20Rolls%20%26%20Strike%20Pinning%20Microst%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20CME%20SOFR%20Options%20%26%20Interest%20Rate%20Sw%7CJPM-COLLAR-HEQT%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20FINRA%20Rule%204210%20Portfo%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A4210%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CJPM-COLLAR-HEQT%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure 25-Delta Strike Skew, Put Wi... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure: 25-Delta Strike Skew, Put Wing Convexity &amp; No-Arbitrage Bounds ($16.0B+ Quarterly SPX Collar Notional Benchmark) — Figure 1: Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure 25-Delta Strike Skew, Put Wi... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/jpm-collar-heqt-dispersion-correlation-unwind-stress-audit</loc>
    <lastmod>2026-11-05T14:34:35.547Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/jpm-collar-heqt-dispersion-correlation-unwind-stress-audit.jpg</image:loc>
      <image:title>Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure Correlation Spike Stress Aud... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure Correlation Spike... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Institutional%20Quarterly%20Equity%20Collar%20Rolls%20%26%20Strike%20Pinning%20Microstructure%20Correlation%20Spike%20Stress%20Aud%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AInstitutional%20Quarterly%20Equity%20Collar%20Rolls%20%26%20Strike%20Pinning%20Microst%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20CME%20SOFR%20Options%20%26%20Interest%20Rate%20Sw%7CJPM-COLLAR-HEQT%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20FINRA%20Rule%204210%20Portfo%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A4210%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CJPM-COLLAR-HEQT%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure Correlation Spike Stress Aud... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure: Correlation Spike Stress Audit &amp; Institutional Dispersion Unwinds ($16.0B+ Quarterly SPX Collar Notional Benchmark) — Figure 1: Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure Correlation Spike Stress Aud... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/jpm-collar-heqt-350pm-moc-imbalance-and-cash-close-pinning</loc>
    <lastmod>2026-11-05T14:34:35.549Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/jpm-collar-heqt-350pm-moc-imbalance-and-cash-close-pinning.jpg</image:loc>
      <image:title>Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure 3 50 PM ET Market-on-Close (... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure 3 50 PM ET Market-... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=Institutional%20Quarterly%20Equity%20Collar%20Rolls%20%26%20Strike%20Pinning%20Microstructure%203%2050%20PM%20ET%20Market-on-Close%20%28%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AInstitutional%20Quarterly%20Equity%20Collar%20Rolls%20%26%20Strike%20Pinning%20Microst%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20CME%20SOFR%20Options%20%26%20Interest%20Rate%20Sw%7CJPM-COLLAR-HEQT%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20FINRA%20Rule%204210%20Portfo%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A4210%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CJPM-COLLAR-HEQT%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure 3 50 PM ET Market-on-Close (... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure: 3:50 PM ET Market-on-Close (MOC) Imbalance &amp; 4:00 PM Cash Settlement ($16.0B+ Quarterly SPX Collar Notional Benchmark) — Figure 1: Institutional Quarterly Equity Collar Rolls &amp; Strike Pinning Microstructure 3 50 PM ET Market-on-Close (... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/sofr-sro-swaptions-dealer-gamma-hedging-and-es-futures-impact</loc>
    <lastmod>2026-10-22T08:14:17.363Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/sofr-sro-swaptions-dealer-gamma-hedging-and-es-futures-impact.jpg</image:loc>
      <image:title>CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid Dealer Delta/Gamma Hedging... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid Dealer Delta/Gamm... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=CME%20SOFR%20Options%20%26%20Interest%20Rate%20Swaption%20Normal%20%28Bachelier%29%20Volatility%20Grid%20Dealer%20Delta%2FGamma%20Hedging%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACME%20SOFR%20Options%20%26%20Interest%20Rate%20Swaption%20Normal%20%28Bachelier%29%20Volatil%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20FINRA%20Rule%204210%20Portfolio%20Margin%20vs%7CSOFR-SRO-SWAPTIONS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%20SPX%200DTE%20Options%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A4210%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSOFR-SRO-SWAPTIONS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid Dealer Delta/Gamma Hedging... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid: Dealer Delta/Gamma Hedging Equations &amp; E-Mini S&amp;P 500 Futures Impact (98.5 bps Annualized Normal Vol (1Y10Y) Benchmark) — Figure 1: CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid Dealer Delta/Gamma Hedging... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/sofr-sro-swaptions-partial-derivative-formulas-and-surface-grid</loc>
    <lastmod>2026-11-05T14:34:35.551Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/sofr-sro-swaptions-partial-derivative-formulas-and-surface-grid.jpg</image:loc>
      <image:title>CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid Partial Derivative Formulas... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid Partial Derivativ... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=CME%20SOFR%20Options%20%26%20Interest%20Rate%20Swaption%20Normal%20%28Bachelier%29%20Volatility%20Grid%20Partial%20Derivative%20Formulas%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACME%20SOFR%20Options%20%26%20Interest%20Rate%20Swaption%20Normal%20%28Bachelier%29%20Volatil%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20FINRA%20Rule%204210%20Portfolio%20Margin%20vs%7CSOFR-SRO-SWAPTIONS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%20SPX%200DTE%20Options%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A4210%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSOFR-SRO-SWAPTIONS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid Partial Derivative Formulas... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid: Partial Derivative Formulas, Scaling Units &amp; Tenor Surface Grid (98.5 bps Annualized Normal Vol (1Y10Y) Benchmark) — Figure 1: CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid Partial Derivative Formulas... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/sofr-sro-swaptions-fomc-and-cpi-event-volatility-crush-math</loc>
    <lastmod>2026-11-05T14:34:35.553Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/sofr-sro-swaptions-fomc-and-cpi-event-volatility-crush-math.jpg</image:loc>
      <image:title>CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid FOMC &amp; CPI Event Volatility... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid FOMC &amp; CPI Event... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=CME%20SOFR%20Options%20%26%20Interest%20Rate%20Swaption%20Normal%20%28Bachelier%29%20Volatility%20Grid%20FOMC%20%26%20CPI%20Event%20Volatility%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACME%20SOFR%20Options%20%26%20Interest%20Rate%20Swaption%20Normal%20%28Bachelier%29%20Volatil%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20FINRA%20Rule%204210%20Portfolio%20Margin%20vs%7CSOFR-SRO-SWAPTIONS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%20SPX%200DTE%20Options%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A4210%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSOFR-SRO-SWAPTIONS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid FOMC &amp; CPI Event Volatility... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid: FOMC &amp; CPI Event Volatility Crush &amp; Forward Variance Decomposition (98.5 bps Annualized Normal Vol (1Y10Y) Benchmark) — Figure 1: CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid FOMC &amp; CPI Event Volatility... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/sofr-sro-swaptions-contango-roll-drag-and-term-structure-carry</loc>
    <lastmod>2026-11-05T14:34:35.555Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/sofr-sro-swaptions-contango-roll-drag-and-term-structure-carry.jpg</image:loc>
      <image:title>CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid Constant-Maturity Contango... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid Constant-Maturity... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=CME%20SOFR%20Options%20%26%20Interest%20Rate%20Swaption%20Normal%20%28Bachelier%29%20Volatility%20Grid%20Constant-Maturity%20Contango%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACME%20SOFR%20Options%20%26%20Interest%20Rate%20Swaption%20Normal%20%28Bachelier%29%20Volatil%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20FINRA%20Rule%204210%20Portfolio%20Margin%20vs%7CSOFR-SRO-SWAPTIONS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%20SPX%200DTE%20Options%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A4210%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSOFR-SRO-SWAPTIONS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid Constant-Maturity Contango... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid: Constant-Maturity Contango Roll Drag &amp; Backwardation Flip Triggers (98.5 bps Annualized Normal Vol (1Y10Y) Benchmark) — Figure 1: CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid Constant-Maturity Contango... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/sofr-sro-swaptions-clearing-margin-monte-carlo-stress-scenarios</loc>
    <lastmod>2026-11-05T14:34:35.557Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/sofr-sro-swaptions-clearing-margin-monte-carlo-stress-scenarios.jpg</image:loc>
      <image:title>CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid Clearinghouse Margin Monte... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid Clearinghouse Mar... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=CME%20SOFR%20Options%20%26%20Interest%20Rate%20Swaption%20Normal%20%28Bachelier%29%20Volatility%20Grid%20Clearinghouse%20Margin%20Monte%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACME%20SOFR%20Options%20%26%20Interest%20Rate%20Swaption%20Normal%20%28Bachelier%29%20Volatil%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20FINRA%20Rule%204210%20Portfolio%20Margin%20vs%7CSOFR-SRO-SWAPTIONS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%20SPX%200DTE%20Options%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A4210%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSOFR-SRO-SWAPTIONS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid Clearinghouse Margin Monte... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid: Clearinghouse Margin Monte Carlo Scenarios &amp; Intraday Call Triggers (98.5 bps Annualized Normal Vol (1Y10Y) Benchmark) — Figure 1: CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid Clearinghouse Margin Monte... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/sofr-sro-swaptions-strike-skew-convexity-and-butterfly-arbitrage</loc>
    <lastmod>2026-11-05T14:34:35.559Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/sofr-sro-swaptions-strike-skew-convexity-and-butterfly-arbitrage.jpg</image:loc>
      <image:title>CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid 25-Delta Strike Skew, Put W... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid 25-Delta Strike S... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=CME%20SOFR%20Options%20%26%20Interest%20Rate%20Swaption%20Normal%20%28Bachelier%29%20Volatility%20Grid%2025-Delta%20Strike%20Skew%2C%20Put%20W%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACME%20SOFR%20Options%20%26%20Interest%20Rate%20Swaption%20Normal%20%28Bachelier%29%20Volatil%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20FINRA%20Rule%204210%20Portfolio%20Margin%20vs%7CSOFR-SRO-SWAPTIONS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%20SPX%200DTE%20Options%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A4210%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSOFR-SRO-SWAPTIONS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid 25-Delta Strike Skew, Put W... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid: 25-Delta Strike Skew, Put Wing Convexity &amp; No-Arbitrage Bounds (98.5 bps Annualized Normal Vol (1Y10Y) Benchmark) — Figure 1: CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid 25-Delta Strike Skew, Put W... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/sofr-sro-swaptions-dispersion-correlation-unwind-stress-audit</loc>
    <lastmod>2026-11-05T14:34:35.561Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/sofr-sro-swaptions-dispersion-correlation-unwind-stress-audit.jpg</image:loc>
      <image:title>CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid Correlation Spike Stress Au... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid Correlation Spike... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=CME%20SOFR%20Options%20%26%20Interest%20Rate%20Swaption%20Normal%20%28Bachelier%29%20Volatility%20Grid%20Correlation%20Spike%20Stress%20Au%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACME%20SOFR%20Options%20%26%20Interest%20Rate%20Swaption%20Normal%20%28Bachelier%29%20Volatil%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20FINRA%20Rule%204210%20Portfolio%20Margin%20vs%7CSOFR-SRO-SWAPTIONS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%20SPX%200DTE%20Options%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A4210%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSOFR-SRO-SWAPTIONS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid Correlation Spike Stress Au... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid: Correlation Spike Stress Audit &amp; Institutional Dispersion Unwinds (98.5 bps Annualized Normal Vol (1Y10Y) Benchmark) — Figure 1: CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid Correlation Spike Stress Au... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/sofr-sro-swaptions-350pm-moc-imbalance-and-cash-close-pinning</loc>
    <lastmod>2026-11-05T14:34:35.563Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/sofr-sro-swaptions-350pm-moc-imbalance-and-cash-close-pinning.jpg</image:loc>
      <image:title>CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid 3 50 PM ET Market-on-Close... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid 3 50 PM ET Market... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=CME%20SOFR%20Options%20%26%20Interest%20Rate%20Swaption%20Normal%20%28Bachelier%29%20Volatility%20Grid%203%2050%20PM%20ET%20Market-on-Close%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3ACME%20SOFR%20Options%20%26%20Interest%20Rate%20Swaption%20Normal%20%28Bachelier%29%20Volatil%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20FINRA%20Rule%204210%20Portfolio%20Margin%20vs%7CSOFR-SRO-SWAPTIONS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Cboe%20SPX%200DTE%20Options%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A4210%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CSOFR-SRO-SWAPTIONS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid 3 50 PM ET Market-on-Close... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid: 3:50 PM ET Market-on-Close (MOC) Imbalance &amp; 4:00 PM Cash Settlement (98.5 bps Annualized Normal Vol (1Y10Y) Benchmark) — Figure 1: CME SOFR Options &amp; Interest Rate Swaption Normal (Bachelier) Volatility Grid 3 50 PM ET Market-on-Close... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/portfolio-margin-tims-dealer-gamma-hedging-and-es-futures-impact</loc>
    <lastmod>2026-10-22T08:14:17.363Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/portfolio-margin-tims-dealer-gamma-hedging-and-es-futures-impact.jpg</image:loc>
      <image:title>FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts Dealer Delta/Gamma Hedging Eq... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts Dealer Delta/Gamma... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=FINRA%20Rule%204210%20Portfolio%20Margin%20vs.%20Reg%20T%20Strategy-Based%20Options%20Haircuts%20Dealer%20Delta%2FGamma%20Hedging%20Eq%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AFINRA%20Rule%204210%20Portfolio%20Margin%20vs.%20Reg%20T%20Strategy-Based%20Options%20Ha%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%20SPX%200DTE%20Options%20Volume%20%2859%25%20S%7CPORTFOLIO-MARGIN-TIMS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Vanna%20%28dDelta%2FdVol%29%20%26%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A4210%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CPORTFOLIO-MARGIN-TIMS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts Dealer Delta/Gamma Hedging Eq... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts: Dealer Delta/Gamma Hedging Equations &amp; E-Mini S&amp;P 500 Futures Impact (15.0% Broad-Based Index Stress Range Benchmark) — Figure 1: FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts Dealer Delta/Gamma Hedging Eq... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/portfolio-margin-tims-partial-derivative-formulas-and-surface-grid</loc>
    <lastmod>2026-11-05T14:34:35.565Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/portfolio-margin-tims-partial-derivative-formulas-and-surface-grid.jpg</image:loc>
      <image:title>FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts Partial Derivative Formulas,... — OCC Margin &amp; Dispersion Desk &amp; vol-surface-desk, OCC Margin &amp; Dispersion De... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts Partial Derivative... (OCC Margin &amp; Dispersion Desk Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=FINRA%20Rule%204210%20Portfolio%20Margin%20vs.%20Reg%20T%20Strategy-Based%20Options%20Haircuts%20Partial%20Derivative%20Formulas%2C%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20OCC%20Margin%20%26%20Dispersion%20Desk%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AFINRA%20Rule%204210%20Portfolio%20Margin%20vs.%20Reg%20T%20Strategy-Based%20Options%20Ha%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%20SPX%200DTE%20Options%20Volume%20%2859%25%20S%7CPORTFOLIO-MARGIN-TIMS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Vanna%20%28dDelta%2FdVol%29%20%26%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A4210%3A%3APrimary%20Institutional%20Benchmark%7COCC%20Margin%20%26%20Dispersion%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CPORTFOLIO-MARGIN-TIMS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts Partial Derivative Formulas,... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts: Partial Derivative Formulas, Scaling Units &amp; Tenor Surface Grid (15.0% Broad-Based Index Stress Range Benchmark) — Figure 1: FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts Partial Derivative Formulas,... — OCC Margin &amp; Dispersion Desk Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/portfolio-margin-tims-fomc-and-cpi-event-volatility-crush-math</loc>
    <lastmod>2026-11-05T14:34:35.567Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/portfolio-margin-tims-fomc-and-cpi-event-volatility-crush-math.jpg</image:loc>
      <image:title>FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts FOMC &amp; CPI Event Volatility C... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts FOMC &amp; CPI Event Vo... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=FINRA%20Rule%204210%20Portfolio%20Margin%20vs.%20Reg%20T%20Strategy-Based%20Options%20Haircuts%20FOMC%20%26%20CPI%20Event%20Volatility%20C%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AFINRA%20Rule%204210%20Portfolio%20Margin%20vs.%20Reg%20T%20Strategy-Based%20Options%20Ha%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%20SPX%200DTE%20Options%20Volume%20%2859%25%20S%7CPORTFOLIO-MARGIN-TIMS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Vanna%20%28dDelta%2FdVol%29%20%26%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A4210%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CPORTFOLIO-MARGIN-TIMS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts FOMC &amp; CPI Event Volatility C... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts: FOMC &amp; CPI Event Volatility Crush &amp; Forward Variance Decomposition (15.0% Broad-Based Index Stress Range Benchmark) — Figure 1: FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts FOMC &amp; CPI Event Volatility C... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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  <url>
    <loc>https://volsurfacedesk.com/desk-notes/portfolio-margin-tims-contango-roll-drag-and-term-structure-carry</loc>
    <lastmod>2026-11-05T14:34:35.569Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/portfolio-margin-tims-contango-roll-drag-and-term-structure-carry.jpg</image:loc>
      <image:title>FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts Constant-Maturity Contango Ro... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts Constant-Maturity C... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=FINRA%20Rule%204210%20Portfolio%20Margin%20vs.%20Reg%20T%20Strategy-Based%20Options%20Haircuts%20Constant-Maturity%20Contango%20Ro%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AFINRA%20Rule%204210%20Portfolio%20Margin%20vs.%20Reg%20T%20Strategy-Based%20Options%20Ha%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%20SPX%200DTE%20Options%20Volume%20%2859%25%20S%7CPORTFOLIO-MARGIN-TIMS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Vanna%20%28dDelta%2FdVol%29%20%26%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A4210%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CPORTFOLIO-MARGIN-TIMS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts Constant-Maturity Contango Ro... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts: Constant-Maturity Contango Roll Drag &amp; Backwardation Flip Triggers (15.0% Broad-Based Index Stress Range Benchmark) — Figure 1: FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts Constant-Maturity Contango Ro... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/portfolio-margin-tims-clearing-margin-monte-carlo-stress-scenarios</loc>
    <lastmod>2026-11-05T14:34:35.571Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/portfolio-margin-tims-clearing-margin-monte-carlo-stress-scenarios.jpg</image:loc>
      <image:title>FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts Clearinghouse Margin Monte Ca... — Second-Order Greeks &amp; Hedging &amp; vol-surface-desk, Second-Order Greeks &amp; Hedg... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts Clearinghouse Margi... (Second-Order Greeks &amp; Hedging Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=FINRA%20Rule%204210%20Portfolio%20Margin%20vs.%20Reg%20T%20Strategy-Based%20Options%20Haircuts%20Clearinghouse%20Margin%20Monte%20Ca%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20Second-Order%20Greeks%20%26%20Hedging%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AFINRA%20Rule%204210%20Portfolio%20Margin%20vs.%20Reg%20T%20Strategy-Based%20Options%20Ha%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%20SPX%200DTE%20Options%20Volume%20%2859%25%20S%7CPORTFOLIO-MARGIN-TIMS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Vanna%20%28dDelta%2FdVol%29%20%26%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A4210%3A%3APrimary%20Institutional%20Benchmark%7CSecond-Order%20Greeks%20%26%20H%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CPORTFOLIO-MARGIN-TIMS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts Clearinghouse Margin Monte Ca... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts: Clearinghouse Margin Monte Carlo Scenarios &amp; Intraday Call Triggers (15.0% Broad-Based Index Stress Range Benchmark) — Figure 1: FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts Clearinghouse Margin Monte Ca... — Second-Order Greeks &amp; Hedging Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/portfolio-margin-tims-dispersion-correlation-unwind-stress-audit</loc>
    <lastmod>2026-11-05T14:34:35.576Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/portfolio-margin-tims-dispersion-correlation-unwind-stress-audit.jpg</image:loc>
      <image:title>FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts Correlation Spike Stress Audi... — 0DTE Gamma &amp; Volatility Surface &amp; vol-surface-desk, 0DTE Gamma &amp; Volatility Su... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts Correlation Spike S... (0DTE Gamma &amp; Volatility Surface Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=FINRA%20Rule%204210%20Portfolio%20Margin%20vs.%20Reg%20T%20Strategy-Based%20Options%20Haircuts%20Correlation%20Spike%20Stress%20Audi%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%200DTE%20Gamma%20%26%20Volatility%20Surface%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AFINRA%20Rule%204210%20Portfolio%20Margin%20vs.%20Reg%20T%20Strategy-Based%20Options%20Ha%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%20SPX%200DTE%20Options%20Volume%20%2859%25%20S%7CPORTFOLIO-MARGIN-TIMS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Vanna%20%28dDelta%2FdVol%29%20%26%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A4210%3A%3APrimary%20Institutional%20Benchmark%7C0DTE%20Gamma%20%26%20Volatility%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CPORTFOLIO-MARGIN-TIMS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts Correlation Spike Stress Audi... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts: Correlation Spike Stress Audit &amp; Institutional Dispersion Unwinds (15.0% Broad-Based Index Stress Range Benchmark) — Figure 1: FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts Correlation Spike Stress Audi... — 0DTE Gamma &amp; Volatility Surface Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
  </url>
  <url>
    <loc>https://volsurfacedesk.com/desk-notes/portfolio-margin-tims-350pm-moc-imbalance-and-cash-close-pinning</loc>
    <lastmod>2026-11-05T14:34:35.578Z</lastmod>
    <image:image>
      <image:loc>https://volsurfacedesk.com/media/vol-surface-desk/portfolio-margin-tims-350pm-moc-imbalance-and-cash-close-pinning.jpg</image:loc>
      <image:title>FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts 3 50 PM ET Market-on-Close (M... — VIX Term Structure &amp; Skew &amp; vol-surface-desk, VIX Term Structure &amp; Skew,... institutional illustration (VolSurface Desk)</image:title>
      <image:caption>AI-generated editorial illustration · FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts 3 50 PM ET Market-o... (VIX Term Structure &amp; Skew Desk, VolSurface Desk).</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
    </image:image>
    <image:image>
      <image:loc>https://volsurfacedesk.com/api/figure?title=FINRA%20Rule%204210%20Portfolio%20Margin%20vs.%20Reg%20T%20Strategy-Based%20Options%20Haircuts%203%2050%20PM%20ET%20Market-on-Close%20%28M%E2%80%A6&amp;subtitle=VolSurface%20Desk%20%28volsurfacedesk.com%29%20%E2%80%A2%20VIX%20Term%20Structure%20%26%20Skew%20Quantitative%20%26%20Regulatory%20Verification%20Desk%20%282026%29&amp;steps=vol-surface-desk%20Intake%20%26%20Scope%3A%3AFINRA%20Rule%204210%20Portfolio%20Margin%20vs.%20Reg%20T%20Strategy-Based%20Options%20Ha%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%20Verification%3A%3ACross-benchmark%20analysis%20against%20Cboe%20SPX%200DTE%20Options%20Volume%20%2859%25%20S%7CPORTFOLIO-MARGIN-TIMS%20Risk%20Controls%3A%3AInstitutional%20compliance%20and%20risk%20desks%20apply%20Vanna%20%28dDelta%2FdVol%29%20%26%20%7CInstitutional%20Execution%20%26%20Audit%3A%3AStandardized%20audit%20verification%20across%20US%20venues%20reduces%20execution%2C%20&amp;metrics=vol-surface-desk%3A%3A4210%3A%3APrimary%20Institutional%20Benchmark%7CVIX%20Term%20Structure%20%26%20Sk%E2%80%A6%3A%3AT%2B0%20%2F%20Real-Time%3A%3ACross-Checked%20Primary%20Filings%7CPORTFOLIO-MARGIN-TIMS%3A%3A99.5%25%20Confidence%3A%3AVolSurface%20Desk%20Methodology%7CAudit%20%26%20Provenance%3A%3A2026%20Q4%20Baseline%3A%3ACC%20BY%204.0%20Open%20Dataset</image:loc>
      <image:title>Figure 1: FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts 3 50 PM ET Market-on-Close (M... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk)</image:title>
      <image:caption>FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts: 3:50 PM ET Market-on-Close (MOC) Imbalance &amp; 4:00 PM Cash Settlement (15.0% Broad-Based Index Stress Range Benchmark) — Figure 1: FINRA Rule 4210 Portfolio Margin vs. Reg T Strategy-Based Options Haircuts 3 50 PM ET Market-on-Close (M... — VIX Term Structure &amp; Skew Institutional Architecture &amp; Quantitative Benchmark Exhibit (VolSurface Desk) (VolSurface Desk)</image:caption>
      <image:license>https://creativecommons.org/licenses/by/4.0/</image:license>
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