Vanguard Intermediate-Term Bond ETF (BIV)'s 30-day implied volatility (IV30) was 5.7% at the close on October 20, 2026, down from 5.9% the day before, against a 52-week range of 2.6% to 10.4%. Its 20-day historical volatility was 6.3%.

Key numbers

30-day implied volatility (IV30): 5.7%
IV30 52-week range: 2.6% to 10.4% (median 4.9%)
Historical volatility: 20-day 6.3%, 1-year 4.4%
Implied move by the nearest expiration: ±0.4%

Data as of October 20, 2026.

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

Name: BIV Implied Volatility
Creator: Market Chameleon