Mesabi Trust (MSB)'s 30-day implied volatility (IV30) was 55.1% at the close on October 19, 2026, up from 50.6% the day before, against a 52-week range of 32.0% to 63.0%. Its 20-day historical volatility was 65.8%.
Key numbers
30-day implied volatility (IV30): 55.1%
IV30 52-week range: 32.0% to 63.0% (median 46.1%)
Historical volatility: 20-day 65.8%, 1-year 62.4%
Implied move by the nearest expiration: ±3.2%
Data as of October 19, 2026.
MSB Implied Volatility (IV) vs Historical Volatility (HV)
The MSB IV term structure shows the implied volatility difference between different maturity dates.
