Alector (ALEC)'s 30-day implied volatility (IV30) was 89.0% at the close on November 6, 2026, up from 82.5% the day before, against a 52-week range of 56.0% to 159.6%. Its 20-day historical volatility was 102.1%.

Key numbers

30-day implied volatility (IV30): 89.0%
IV30 52-week range: 56.0% to 159.6% (median 82.1%)
Historical volatility: 20-day 102.1%, 1-year 89.3%
Implied move by the nearest expiration: ±4.2%

Data as of November 6, 2026.

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

Name: ALEC Implied Volatility
Creator: Market Chameleon