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.
Invesco CurrencyShares British Pound Sterling Trust (FXB) had 20-Day Historical Volatility (Parkinson) of 0.0277 for 2026-01-20.
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