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.
Amplify Etho Climate Leadership U.S. ETF (ETHO) had 20-Day Historical Volatility (Parkinson) of 0.0752 for 2026-01-20.
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