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.
Indexperts Yield Focused Fixed Income ETF (YFFI) had 20-Day Historical Volatility (Parkinson) of 0.0379 for 2026-01-20.
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