SPDR S&P 500 ETF (SPY)

Last Closing Price: 643.44 (2025-08-15)

Historical Volatility (Close-to-Close) (30-Day)

Historical Volatility (Close-to-Close): The past volatility of the security over the selected time frame, calculated using the closing price on each trading day.

SPDR S&P 500 ETF (SPY) had 30-Day Historical Volatility (Close-to-Close) of 0.1034 for 2025-08-15.