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.
First Trust Mid Cap Growth AlphaDEX ETF (FNY) had 30-Day Historical Volatility (Parkinson) of 0.1041 for 2025-05-30.
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