Ameren (AEE)'s 30-day implied volatility (IV30) was 18.6% at the close on October 21, 2026, down from 19.3% the day before, against a 52-week range of 12.6% to 29.4%. Its 20-day historical volatility was 19.5%.
Key numbers
30-day implied volatility (IV30): 18.6%
IV30 52-week range: 12.6% to 29.4% (median 19.6%)
Historical volatility: 20-day 19.5%, 1-year 18.7%
Implied move by the nearest expiration: ±1.2%
Data as of October 21, 2026.
AEE Implied Volatility (IV) vs Historical Volatility (HV)
The AEE IV term structure shows the implied volatility difference between different maturity dates.
