Historical Volatility (Parkinson) (20-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 FactSet Innovative Technology ETF (XITK) had 20-Day Historical Volatility (Parkinson) of 0.1233 for 2026-01-20.
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