ProShares Short High Yield (SJB)'s 30-day implied volatility (IV30) was 12.0% at the close on October 23, 2026, up from 11.2% the day before, against a 52-week range of 5.5% to 17.8%. Its 20-day historical volatility was 5.0%.

Key numbers

30-day implied volatility (IV30): 12.0%
IV30 52-week range: 5.5% to 17.8% (median 11.2%)
Historical volatility: 20-day 5.0%, 1-year 4.5%
Implied move by the nearest expiration: ±0.7%

Data as of October 23, 2026.

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

Name: SJB Implied Volatility
Creator: Market Chameleon