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.
WEBs Communication Services XLC Defined Volatility ETF (DVXC) had 120-Day Historical Volatility (Parkinson) of 0.0211 for 2025-12-17.
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