Historical Volatility (Parkinson) (30-Day)
Historical Volatility (Parkinson): The past volatility of the security over the selected time frame, calculated using the high and low prices on each trading day.
SPDR Loomis Sayles Opportunistic Bond ETF (OBND) had 30-Day Historical Volatility (Parkinson) of 0.0128 for 2025-09-02.
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