Algoma Steel Group - Common Shares (ASTL)'s 30-day implied volatility (IV30) was 74.3% at the close on October 23, 2026, up from 62.8% the day before, against a 52-week range of 44.0% to 119.5%. Its 20-day historical volatility was 58.7%.

Key numbers

30-day implied volatility (IV30): 74.3%
IV30 52-week range: 44.0% to 119.5% (median 74.0%)
Historical volatility: 20-day 58.7%, 1-year 67.6%
Implied move by the nearest expiration: ±4.0%

Data as of October 23, 2026.

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

Name: ASTL Implied Volatility
Creator: Market Chameleon