American Coastal Insurance (ACIC)'s 30-day implied volatility (IV30) was 36.8% at the close on October 16, 2026, down from 38.9% the day before, against a 52-week range of 22.1% to 49.7%. Its 20-day historical volatility was 33.3%.

Key numbers

30-day implied volatility (IV30): 36.8%
IV30 52-week range: 22.1% to 49.7% (median 30.4%)
Historical volatility: 20-day 33.3%, 1-year 32.6%
Implied move by the nearest expiration: ±2.0%

Data as of October 16, 2026.

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

Name: ACIC Implied Volatility
Creator: Market Chameleon