Extreme-Strike Comparisons and Structural Bounds for SPX and VIX Options
This article explores relationships between the SPX and VIX options markets. High-strike VIX call options are used to hedge tail risk in the SPX, which means that SPX options are a re ection of the extremestrike asymptotics of VIX options, and vice versa. This relationship can be quantified using moment formulas in a model-free way. Comparison formulas are presented along with various examples of stochastic volatility models.Keywords: VIX options, moment formulas, extreme strikes.
AMS Subject Classification: Primary 60.
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