Grayscale Bitcoin Mini Trust ETF (BTC)'s 30-day implied volatility (IV30) was 32.8% at the close on October 20, 2026, down from 34.9% the day before, against a 52-week range of 30.7% to 88.9%. Its 20-day historical volatility was 27.6%.

Key numbers

30-day implied volatility (IV30): 32.8%
IV30 52-week range: 30.7% to 88.9% (median 40.2%)
Historical volatility: 20-day 27.6%, 1-year 42.6%
Implied move by the nearest expiration: ±2.2%

Data as of October 20, 2026.

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

Name: BTC Implied Volatility
Creator: Market Chameleon