Historical Volatility (Parkinson) (180-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.
State Street SPDR Bloomberg Investment Grade Floating Rate ETF (FLRN) had 180-Day Historical Volatility (Parkinson) of 0.0060 for 2026-01-20.
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