Westamerica Bancorporation (WABC)'s 30-day implied volatility (IV30) was 24.3% at the close on October 20, 2026, up from 24.0% the day before, against a 52-week range of 14.4% to 32.0%. Its 20-day historical volatility was 23.2%.

Key numbers

30-day implied volatility (IV30): 24.3%
IV30 52-week range: 14.4% to 32.0% (median 23.4%)
Historical volatility: 20-day 23.2%, 1-year 25.4%
Implied move by the nearest expiration: ±1.5%

Data as of October 20, 2026.

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

Name: WABC Implied Volatility
Creator: Market Chameleon