iShares 20+ Year Treasury Bond ETF (TLT)'s 30-day implied volatility (IV30) was 12.9% at the close on November 3, 2026, down from 13.0% the day before, against a 52-week range of 8.3% to 16.1%. Its 20-day historical volatility was 12.0%.

Key numbers

30-day implied volatility (IV30): 12.9%
IV30 52-week range: 8.3% to 16.1% (median 10.4%)
Historical volatility: 20-day 12.0%, 1-year 9.6%
Implied move by the nearest expiration: ±0.9%

Data as of November 3, 2026.

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

Name: TLT Implied Volatility
Creator: Market Chameleon