ProShares Ultrashort Nasdaq Biotechnology (BIS)'s 30-day implied volatility (IV30) was 47.6% at the close on October 29, 2026, up from 40.3% the day before, against a 52-week range of 24.2% to 48.3%. Its 20-day historical volatility was 55.5%.

Key numbers

30-day implied volatility (IV30): 47.6%
IV30 52-week range: 24.2% to 48.3% (median 36.6%)
Historical volatility: 20-day 55.5%, 1-year 44.5%
Implied move by the nearest expiration: ±2.5%

Data as of October 29, 2026.

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

Name: BIS Implied Volatility
Creator: Market Chameleon