iShares 20+ Year Treasury Bond Buywrite Strategy ETF (TLTW)'s 30-day implied volatility (IV30) was 12.6% at the close on October 21, 2026, up from 11.1% the day before, against a 52-week range of 8.0% to 16.6%. Its 20-day historical volatility was 12.1%.

Key numbers

30-day implied volatility (IV30): 12.6%
IV30 52-week range: 8.0% to 16.6% (median 12.5%)
Historical volatility: 20-day 12.1%, 1-year 8.3%
Implied move by the nearest expiration: ±0.7%

Data as of October 21, 2026.

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

Name: TLTW Implied Volatility
Creator: Market Chameleon