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.
Direxion Daily BABA Bull 2X ETF (BABU) had 20-Day Historical Volatility (Parkinson) of 0.4520 for 2026-04-06.
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