Historical Volatility (Parkinson) (10-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.
First Trust Indxx Quality Precious Metals Miners ETF (PMTL) had 10-Day Historical Volatility (Parkinson) of 0.0482 for 2026-08-07.
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