Historical Volatility (Parkinson) (90-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.

TetraLogic Pharmaceuticals Corporation (TLOG) had 90-Day Historical Volatility (Parkinson) of 1.8721 for 2016-11-03.

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Figures for 2016-11-03

Volatility Metrics
Historical Volatility (Close-to-Close)	0.9267
Historical Volatility (Parkinson)	1.8721
Implied Volatility (Calls)	--
Implied Volatility (Puts)	--
Implied Volatility (Mean)	--
Put-Call Implied Volatility Ratio	--
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	--