Put-Call Ratio (Volume) (30-Day)

Put-Call Ratio (Volume): The ratio of puts traded to calls traded, for options with the relevant expiration date.

PTC Therapeutics, Inc. (PTCT) 30-Day Put-Call Ratio (Volume) data is not available for 2026-07-17.

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Figures for 2026-07-17

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4077
Historical Volatility (Parkinson)	0.3904
Implied Volatility (Calls)	0.6180
Implied Volatility (Puts)	0.6588
Implied Volatility (Mean)	0.6384
Put-Call Implied Volatility Ratio	1.0660
Implied Volatility Skew	0.0448
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	0.0464