Stem Class A (STEM)'s 30-day implied volatility (IV30) was 99.1% at the close on November 3, 2026, up from 82.0% the day before, against a 52-week range of 66.4% to 136.2%. Its 20-day historical volatility was 105.6%.

Key numbers

30-day implied volatility (IV30): 99.1%
IV30 52-week range: 66.4% to 136.2% (median 112.1%)
Historical volatility: 20-day 105.6%, 1-year 92.1%
Implied move by the nearest expiration: ±5.2%

Data as of November 3, 2026.

STEM Implied Volatility (IV) vs Historical Volatility (HV)

Name: STEM Implied Volatility
Creator: Market Chameleon