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.
Andatee China Marine Fuel Services Corp. (AMCF) had 20-Day Historical Volatility (Parkinson) of 2.5300 for 2015-09-01.
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