Historical Volatility (Parkinson) (60-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.
Invesco S&P 500 Quality ETF (SPHQ) had 60-Day Historical Volatility (Parkinson) of 0.0833 for 2026-01-20.
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