X4 Pharmaceuticals (XFOR)'s 30-day implied volatility (IV30) was 72.9% at the close on October 23, 2026, up from 70.9% the day before, against a 52-week range of 47.8% to 123.0%. Its 20-day historical volatility was 71.6%.

Key numbers

30-day implied volatility (IV30): 72.9%
IV30 52-week range: 47.8% to 123.0% (median 76.0%)
Historical volatility: 20-day 71.6%, 1-year 73.6%
Implied move by the nearest expiration: ±4.5%

Data as of October 23, 2026.

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

Name: XFOR Implied Volatility
Creator: Market Chameleon