Historical Volatility (Close-to-Close) (30-Day)
Historical Volatility (Close-to-Close): The past volatility of the security over the selected time frame, calculated using the closing price on each trading day.
FT Vest U.S. Equity Buffer & Premium Income ETF - December (XIDE) had 30-Day Historical Volatility (Close-to-Close) of 0.0209 for 2025-10-20.
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