Companhia Siderurgica Nacional S.A. (SID)'s 30-day implied volatility (IV30) was 56.4% at the close on November 12, 2026, down from 72.4% the day before, against a 52-week range of 31.6% to 99.7%. Its 20-day historical volatility was 83.9%.

Key numbers

30-day implied volatility (IV30): 56.4%
IV30 52-week range: 31.6% to 99.7% (median 55.7%)
Historical volatility: 20-day 83.9%, 1-year 65.6%
Implied move by the nearest expiration: ±4.6%

Data as of November 12, 2026.

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

Name: SID Implied Volatility
Creator: Market Chameleon