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 AMD Daily ETF (AMDL) had 90-Day Historical Volatility (Parkinson) of 0.8921 for 2026-01-20.
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