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.
Vanguard Total World Stock Index Fund ETF Shares (VT) had 30-Day Historical Volatility (Parkinson) of 0.1213 for 2026-03-06.
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