Arch Capital Group Ltd. (ACGL)'s 30-day implied volatility (IV30) was 22.2% at the close on October 23, 2026, down from 24.5% the day before, against a 52-week range of 14.5% to 35.9%. Its 20-day historical volatility was 21.7%.

Key numbers

30-day implied volatility (IV30): 22.2%
IV30 52-week range: 14.5% to 35.9% (median 22.5%)
Historical volatility: 20-day 21.7%, 1-year 21.0%
Implied move by the nearest expiration: ±1.5%

Data as of October 23, 2026.

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

Name: ACGL Implied Volatility
Creator: Market Chameleon