Historical Volatility (Parkinson) (10-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.
GS-YLDBOST 20YT (FIYY) had 10-Day Historical Volatility (Parkinson) of 0.0875 for 2020-12-10.
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