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.
LAZ-NON-DOLR AI (XDLR) 20-Day Historical Volatility (Parkinson) data is not available for 2026-11-10.
For much more extensive volatility insights, check out our new product VolVue:
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- Up to 20 years of data history
- 52-Week Rank and Percentile for all metrics and time frames