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 ORCL Bull 2X ETF (ORCU) had 90-Day Historical Volatility (Parkinson) of 0.9685 for 2026-09-02.
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