Vanguard S&P Mid-Cap 400 Growth Index Fund ETF Shares (IVOG)

Last Closing Price: 139.35 (2026-07-20)

Implied Volatility (Calls) (120-Day)

Implied Volatility (Calls): The forecasted future volatility of the security over the selected time frame, derived from the pricing of the at-the-money call options with the relevant expiration date.

Vanguard S&P Mid-Cap 400 Growth Index Fund ETF Shares (IVOG) had 120-Day Implied Volatility (Calls) of 0.1905 for 2026-07-20.