Historical Volatility (Parkinson) (180-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.
iShares Broad USD High Yield Corporate Bond ETF (USHY) had 180-Day Historical Volatility (Parkinson) of 0.0264 for 2025-12-15.
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