Vanguard Morningstar Mega Cap ETF (MGC)'s 30-day implied volatility (IV30) was 16.4% at the close on October 23, 2026, against a 52-week range of 10.2% to 27.8%. Its 20-day historical volatility was 10.9%.
Key numbers
30-day implied volatility (IV30): 16.4%
IV30 52-week range: 10.2% to 27.8% (median 14.2%)
Historical volatility: 20-day 10.9%, 1-year 13.8%
Implied move by the nearest expiration: ±1.0%
Data as of October 23, 2026.
MGC Implied Volatility (IV) vs Historical Volatility (HV)
The MGC IV term structure shows the implied volatility difference between different maturity dates.
