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.
ProShares Russell 2000 High Income ETF (ITWO) had 120-Day Historical Volatility (Parkinson) of 0.6613 for 2026-01-21.
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