iShares Top 20 US Stocks ETF (TOPT)'s 30-day implied volatility (IV30) was 19.0% at the close on October 27, 2026, up from 17.9% the day before, against a 52-week range of 11.3% to 27.8%. Its 20-day historical volatility was 13.5%.

Key numbers

30-day implied volatility (IV30): 19.0%
IV30 52-week range: 11.3% to 27.8% (median 17.0%)
Historical volatility: 20-day 13.5%, 1-year 15.9%
Implied move by the nearest expiration: ±1.2%

Data as of October 27, 2026.

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

Name: TOPT Implied Volatility
Creator: Market Chameleon