Historical Volatility (Parkinson) (30-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.
Tradr 2X Long SPY Quarterly ETF (SPYQ) had 30-Day Historical Volatility (Parkinson) of 0.0761 for 2025-08-28.
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