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.
Defiance Daily Target 2X Short ASTS ETF (ASTN) had 90-Day Historical Volatility (Parkinson) of 1.7836 for 2026-05-22.
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