Vanguard Morningstar Mega Cap Growth ETF (MGK)'s 30-day implied volatility (IV30) was 22.3% at the close on October 23, 2026, up from 21.4% the day before, against a 52-week range of 13.3% to 30.0%. Its 20-day historical volatility was 17.2%.

Key numbers

30-day implied volatility (IV30): 22.3%
IV30 52-week range: 13.3% to 30.0% (median 19.6%)
Historical volatility: 20-day 17.2%, 1-year 18.9%
Implied move by the nearest expiration: ±1.3%

Data as of October 23, 2026.

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

Name: MGK Implied Volatility
Creator: Market Chameleon