iPath Series B Carbon ETN (GRN)'s 30-day implied volatility (IV30) was 22.5% at the close on October 19, 2026, down from 28.8% the day before, against a 52-week range of 14.3% to 35.4%. Its 20-day historical volatility was 27.9%.

Key numbers

30-day implied volatility (IV30): 22.5%
IV30 52-week range: 14.3% to 35.4% (median 23.0%)
Historical volatility: 20-day 27.9%, 1-year 29.7%
Implied move by the nearest expiration: ±1.8%

Data as of October 19, 2026.

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

Name: GRN Implied Volatility
Creator: Market Chameleon