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.
Xtrackers Artificial Intelligence and Big Data ETF (XAIX) had 20-Day Historical Volatility (Parkinson) of 0.1120 for 2026-01-20.
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