Historical Volatility (Parkinson) (120-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 Genomics Immunology and Healthcare ETF (IDNA) had 120-Day Historical Volatility (Parkinson) of 0.1762 for 2026-01-20.
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