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

Last Closing Price: 128.15 (2026-07-21)

Implied Volatility Skew (120-Day)

Implied Volatility Skew: A measurement that quantifies the difference in implied volatility of options at lower and higher strike prices.

Vanguard S&P Mid-Cap 400 Index Fund ETF Shares (IVOO) had 120-Day Implied Volatility Skew of 0.0019 for 2026-07-21.