Historical Volatility (Parkinson) (30-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.
Defiance Daily Target 2X Long BITF ETF (BTFL) had 30-Day Historical Volatility (Parkinson) of 1.4126 for 2026-02-13.
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