Historical Volatility (Close-to-Close) (180-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.
State Street SPDR Portfolio Mortgage Backed Bond ETF (SPMB) had 180-Day Historical Volatility (Close-to-Close) of 0.0414 for 2025-12-04.
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