Main Street Capital (MAIN)'s 30-day implied volatility (IV30) was 20.6% at the close on November 3, 2026, down from 21.6% the day before, against a 52-week range of 15.8% to 35.5%. Its 20-day historical volatility was 18.1%.

Key numbers

30-day implied volatility (IV30): 20.6%
IV30 52-week range: 15.8% to 35.5% (median 23.5%)
Historical volatility: 20-day 18.1%, 1-year 24.0%
Implied move by the nearest expiration: ±1.4%

Data as of November 3, 2026.

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

Name: MAIN Implied Volatility
Creator: Market Chameleon