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.
GraniteShares 2x Long META Daily ETF (FBL) had 90-Day Historical Volatility (Parkinson) of 0.4660 for 2025-12-15.
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