Historical Volatility (Parkinson) (30-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.
Western Asset High Yield Defined Opportunity Fund Inc. (HYI) had 30-Day Historical Volatility (Parkinson) of 0.0906 for 2025-05-30.
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