Energy Recovery (ERII)'s 30-day implied volatility (IV30) was 41.0% at the close on November 5, 2026, down from 62.9% the day before, against a 52-week range of 23.9% to 90.9%. Its 20-day historical volatility was 33.2%.
Key numbers
30-day implied volatility (IV30): 41.0%
IV30 52-week range: 23.9% to 90.9% (median 44.7%)
Historical volatility: 20-day 33.2%, 1-year 42.3%
Implied move by the nearest expiration: ±4.2%
Data as of November 5, 2026.
ERII Implied Volatility (IV) vs Historical Volatility (HV)
The ERII IV term structure shows the implied volatility difference between different maturity dates.
