Griffon (GFF)'s 30-day implied volatility (IV30) was 35.9% at the close on October 21, 2026, down from 41.0% the day before, against a 52-week range of 19.9% to 46.7%. Its 20-day historical volatility was 34.2%.
Key numbers
30-day implied volatility (IV30): 35.9%
IV30 52-week range: 19.9% to 46.7% (median 29.6%)
Historical volatility: 20-day 34.2%, 1-year 35.8%
Implied move by the nearest expiration: ±2.6%
Data as of October 21, 2026.
GFF Implied Volatility (IV) vs Historical Volatility (HV)
The GFF IV term structure shows the implied volatility difference between different maturity dates.
