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.
Defiance Daily Target 2X Long OSS ETF (OSSL) had 30-Day Historical Volatility (Parkinson) of 1.1563 for 2026-07-13.
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