Historical Volatility (Parkinson) (90-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 TSLA Bull 2X Shares (TSLL) had 90-Day Historical Volatility (Parkinson) of 0.9019 for 2025-08-15.
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