Bentley Systems - Class B (BSY)'s 30-day implied volatility (IV30) was 42.5% at the close on October 21, 2026, down from 45.7% the day before, against a 52-week range of 20.1% to 58.6%. Its 20-day historical volatility was 43.5%.

Key numbers

30-day implied volatility (IV30): 42.5%
IV30 52-week range: 20.1% to 58.6% (median 39.9%)
Historical volatility: 20-day 43.5%, 1-year 39.9%
Implied move by the nearest expiration: ±2.9%

Data as of October 21, 2026.

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

Name: BSY Implied Volatility
Creator: Market Chameleon