Historical Volatility (Parkinson) (30-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 Technology XLK Defined Volatility ETF (DVXK) had 30-Day Historical Volatility (Parkinson) of 0.0139 for 2026-02-20.
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