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.
Direxion Daily AMZN Bull 2X ETF (AMZU) had 180-Day Historical Volatility (Parkinson) of 0.4884 for 2026-06-03.
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