Similarweb Ltd. (SMWB)'s 30-day implied volatility (IV30) was 79.9% at the close on October 21, 2026, up from 79.3% the day before, against a 52-week range of 35.9% to 110.5%. Its 20-day historical volatility was 67.3%.
Key numbers
30-day implied volatility (IV30): 79.9%
IV30 52-week range: 35.9% to 110.5% (median 65.6%)
Historical volatility: 20-day 67.3%, 1-year 71.2%
Implied move by the nearest expiration: ±5.0%
Data as of October 21, 2026.
SMWB Implied Volatility (IV) vs Historical Volatility (HV)
The SMWB IV term structure shows the implied volatility difference between different maturity dates.
