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.
GraniteShares 2x Long DELL Daily ETF (DLLL) had 20-Day Historical Volatility (Parkinson) of 0.5048 for 2025-08-01.
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