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 Residential and Multisector Real Estate ETF (REZ) had 20-Day Historical Volatility (Parkinson) of 0.1333 for 2026-01-20.
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