Fortinet (FTNT)'s 30-day implied volatility (IV30) was 61.3% at the close on October 20, 2026, up from 61.1% the day before, against a 52-week range of 25.7% to 76.9%. Its 20-day historical volatility was 38.4%.
Key numbers
30-day implied volatility (IV30): 61.3%
IV30 52-week range: 25.7% to 76.9% (median 44.0%)
Historical volatility: 20-day 38.4%, 1-year 39.8%
Implied move by the nearest expiration: ±2.7%
Data as of October 20, 2026.
FTNT Implied Volatility (IV) vs Historical Volatility (HV)
The FTNT IV term structure shows the implied volatility difference between different maturity dates.
