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.
iShares iBonds Dec 2027 Term Muni Bond ETF (IBMP) had 20-Day Historical Volatility (Parkinson) of 0.0171 for 2026-01-20.
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