Genmab A/S - American Depositary Shares (GMAB)'s 30-day implied volatility (IV30) was 51.7% at the close on October 21, 2026, up from 50.5% the day before, against a 52-week range of 21.8% to 66.2%. Its 20-day historical volatility was 37.9%.

Key numbers

30-day implied volatility (IV30): 51.7%
IV30 52-week range: 21.8% to 66.2% (median 38.6%)
Historical volatility: 20-day 37.9%, 1-year 34.0%
Implied move by the nearest expiration: ±3.2%

Data as of October 21, 2026.

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

Name: GMAB Implied Volatility
Creator: Market Chameleon