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 AAPL Daily ETF (AAPB) had 90-Day Historical Volatility (Parkinson) of 0.4014 for 2026-03-06.
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