State Street SPDR Bloomberg High Yield Bond ETF (JNK)'s 30-day implied volatility (IV30) was 7.8% at the close on October 16, 2026, up from 6.5% the day before, against a 52-week range of 2.7% to 12.3%. Its 20-day historical volatility was 5.3%.

Key numbers

30-day implied volatility (IV30): 7.8%
IV30 52-week range: 2.7% to 12.3% (median 5.5%)
Historical volatility: 20-day 5.3%, 1-year 3.9%
Implied move by the nearest expiration: ±0.8%

Data as of October 16, 2026.

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

Name: JNK Implied Volatility
Creator: Market Chameleon