S&P Global (SPGI)'s 30-day implied volatility (IV30) was 31.8% at the close on October 23, 2026, up from 31.1% the day before, against a 52-week range of 13.8% to 41.3%. Its 20-day historical volatility was 23.6%.
Key numbers
30-day implied volatility (IV30): 31.8%
IV30 52-week range: 13.8% to 41.3% (median 28.9%)
Historical volatility: 20-day 23.6%, 1-year 27.9%
Implied move by the nearest expiration: ±1.2%
Data as of October 23, 2026.
SPGI Implied Volatility (IV) vs Historical Volatility (HV)
The SPGI IV term structure shows the implied volatility difference between different maturity dates.
