US Global Investors (GROW)'s 30-day implied volatility (IV30) was 56.6% at the close on October 20, 2026, up from 54.6% the day before, against a 52-week range of 26.4% to 79.2%. Its 20-day historical volatility was 55.3%.

Key numbers

30-day implied volatility (IV30): 56.6%
IV30 52-week range: 26.4% to 79.2% (median 47.5%)
Historical volatility: 20-day 55.3%, 1-year 57.9%
Implied move by the nearest expiration: ±3.4%

Data as of October 20, 2026.

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

Name: GROW Implied Volatility
Creator: Market Chameleon