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.
FT Vest Laddered U.S. Equity Equal Weight Buffer ETF (BFEW) had 20-Day Historical Volatility (Parkinson) of 0.0143 for 2026-07-16.
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