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.

GoPro, Inc. (GPRO) had 30-Day Historical Volatility (Parkinson) of 0.6796 for 2025-05-30.

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Over 300 data fields encompassing historical volatility, implied volatility, and put-call ratios for multiple time frames
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Figures for 2025-05-30

Volatility Metrics
Historical Volatility (Close-to-Close)	0.5592
Historical Volatility (Parkinson)	0.6796
Implied Volatility (Calls)	--
Implied Volatility (Puts)	1.3533
Implied Volatility (Mean)	--
Put-Call Implied Volatility Ratio	--
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	0.4266
Put-Call Ratio (Open Interest)	0.3971