CBOE SKEW Index

CBOE SKEW Index measures the perceived probability of a tail event (≥2σ move down) from S&P 500 options pricing; 100 = lognormal, >120 signals growing tail-hedge demand.

CBOE SKEW Index is part of the Volatility category. Volatility is the market's price of uncertainty. The VIX measures 30-day implied equity volatility, the MOVE does the same for Treasuries, and SKEW captures demand for tail-risk protection. Persistent divergences between equity and bond vol often precede regime shifts, while spikes in both simultaneously signal broad deleveraging.

CBOE SKEW Index is updated once per day after market close. Each metric page on Convex shows the exact time of the last data update and provides historical data going back up to five years.

Convex sources CBOE SKEW Index data from official government and market data providers. Data is fetched automatically and displayed alongside interactive charts, AI analysis, and historical context.

The CBOE SKEW Index page includes an interactive chart with selectable time ranges (1 month to 5 years), percentage changes over multiple timeframes, a table of recent readings, AI-generated analysis, and links to related metrics and comparisons.