Altimmune (ALT)'s 30-day implied volatility (IV30) was 52.2% at the close on November 12, 2026, down from 66.5% the day before, against a 52-week range of 37.7% to 186.7%. Its 20-day historical volatility was 66.1%.
Key numbers
30-day implied volatility (IV30): 52.2%
IV30 52-week range: 37.7% to 186.7% (median 68.3%)
Historical volatility: 20-day 66.1%, 1-year 66.0%
Implied move by the nearest expiration: ±7.0%
Data as of November 12, 2026.
ALT Implied Volatility (IV) vs Historical Volatility (HV)
The ALT IV term structure shows the implied volatility difference between different maturity dates.
