NB Bancorp (NBBK)'s 30-day implied volatility (IV30) was 23.0% at the close on October 22, 2026, up from 22.6% the day before, against a 52-week range of 18.4% to 35.8%. Its 20-day historical volatility was 24.6%.
Key numbers
30-day implied volatility (IV30): 23.0%
IV30 52-week range: 18.4% to 35.8% (median 27.4%)
Historical volatility: 20-day 24.6%, 1-year 28.9%
Implied move by the nearest expiration: ±1.4%
Data as of October 22, 2026.
NBBK Implied Volatility (IV) vs Historical Volatility (HV)
The NBBK IV term structure shows the implied volatility difference between different maturity dates.
