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.
ARK 21Shares Blockchain and Digital Economy Innovation ETF (ARKD) had 30-Day Historical Volatility (Parkinson) of 0.2195 for 2025-06-24.
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