Historical Volatility (Parkinson) (20-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 CLS Daily ETF (CSEX) had 20-Day Historical Volatility (Parkinson) of 1.0482 for 2026-01-09.
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