Byrna Technologies (BYRN)'s 30-day implied volatility (IV30) was 73.3% at the close on October 21, 2026, up from 65.8% the day before, against a 52-week range of 46.2% to 118.5%. Its 20-day historical volatility was 64.5%.

Key numbers

30-day implied volatility (IV30): 73.3%
IV30 52-week range: 46.2% to 118.5% (median 67.8%)
Historical volatility: 20-day 64.5%, 1-year 69.5%
Implied move by the nearest expiration: ±4.1%

Data as of October 21, 2026.

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

Name: BYRN Implied Volatility
Creator: Market Chameleon