Charles River Laboratories International (CRL)'s 30-day implied volatility (IV30) was 61.3% at the close on October 23, 2026, up from 60.9% the day before, against a 52-week range of 35.5% to 76.4%. Its 20-day historical volatility was 50.6%.

Key numbers

30-day implied volatility (IV30): 61.3%
IV30 52-week range: 35.5% to 76.4% (median 48.1%)
Historical volatility: 20-day 50.6%, 1-year 46.4%
Implied move by the nearest expiration: ±3.8%

Data as of October 23, 2026.

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

Name: CRL Implied Volatility
Creator: Market Chameleon