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.
Invesco High Yield Equity Dividend Achievers ETF (PEY) had 20-Day Historical Volatility (Parkinson) of 0.1457 for 2026-01-20.
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