VIX 1×2 Call Ratios & Collars vs Direct SPX OTM Put Tail Hedges
Design institutional equity tail-hedging overlays: compare Cboe VIX call-spread collars and 1×2 call backspreads against direct 5-delta SPX puts across sudden liquidity crashes versus slow 2022-style bear grinds.
Điểm chính: Direct 5-delta SPX puts have ZERO basis risk to S&P 500 drawdowns, but pay steep 25d/5d put skew + Variance Risk Premium, bleeding 180–280 bps/yr if rolled mechanically.
