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.
Oaktree Acquisition Corp. III Life Sciences (OACC) had 20-Day Historical Volatility (Parkinson) of 0.0414 for 2026-01-07.
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