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.
First Trust Asia Pacific ex-Japan AlphaDEX ETF (FPA) had 60-Day Historical Volatility (Parkinson) of 0.2130 for 2026-06-03.
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