Constellation Energy - Common When-Issued (CEG)'s 30-day implied volatility (IV30) was 50.7% at the close on October 23, 2026, down from 50.9% the day before, against a 52-week range of 38.3% to 59.9%. Its 20-day historical volatility was 57.0%.

Key numbers

30-day implied volatility (IV30): 50.7%
IV30 52-week range: 38.3% to 59.9% (median 49.5%)
Historical volatility: 20-day 57.0%, 1-year 48.5%
Implied move by the nearest expiration: ±3.3%

Data as of October 23, 2026.

CEG Implied Volatility (IV) vs Historical Volatility (HV)

Name: CEG Implied Volatility
Creator: Market Chameleon