Geron (GERN)'s 30-day implied volatility (IV30) was 54.3% at the close on October 21, 2026, down from 74.6% the day before, against a 52-week range of 40.4% to 114.0%. Its 20-day historical volatility was 45.3%.
Key numbers
30-day implied volatility (IV30): 54.3%
IV30 52-week range: 40.4% to 114.0% (median 72.5%)
Historical volatility: 20-day 45.3%, 1-year 63.3%
Implied move by the nearest expiration: ±4.7%
Data as of October 21, 2026.
GERN Implied Volatility (IV) vs Historical Volatility (HV)
The GERN IV term structure shows the implied volatility difference between different maturity dates.
