Rli Corp. Common (De) (RLI)'s 30-day implied volatility (IV30) was 25.2% at the close on November 13, 2026, down from 28.1% the day before, against a 52-week range of 13.4% to 35.8%. Its 20-day historical volatility was 34.3%.

Key numbers

30-day implied volatility (IV30): 25.2%
IV30 52-week range: 13.4% to 35.8% (median 23.0%)
Historical volatility: 20-day 34.3%, 1-year 27.3%
Implied move by the nearest expiration: ±1.8%

Data as of November 13, 2026.

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

Name: RLI Implied Volatility
Creator: Market Chameleon