Donaldson Company (DCI)'s 30-day implied volatility (IV30) was 28.2% at the close on October 21, 2026, up from 23.6% the day before, against a 52-week range of 14.5% to 41.6%. Its 20-day historical volatility was 19.4%.
Key numbers
30-day implied volatility (IV30): 28.2%
IV30 52-week range: 14.5% to 41.6% (median 24.7%)
Historical volatility: 20-day 19.4%, 1-year 23.6%
Implied move by the nearest expiration: ±1.5%
Data as of October 21, 2026.
DCI Implied Volatility (IV) vs Historical Volatility (HV)
The DCI IV term structure shows the implied volatility difference between different maturity dates.
