Allogene Therapeutics (ALLO)'s 30-day implied volatility (IV30) was 74.9% at the close on October 21, 2026, down from 78.0% the day before, against a 52-week range of 51.1% to 189.5%. Its 20-day historical volatility was 55.8%.

Key numbers

30-day implied volatility (IV30): 74.9%
IV30 52-week range: 51.1% to 189.5% (median 86.7%)
Historical volatility: 20-day 55.8%, 1-year 80.5%
Implied move by the nearest expiration: ±4.9%

Data as of October 21, 2026.

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

Name: ALLO Implied Volatility
Creator: Market Chameleon