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.

Compass Therapeutics, Inc. (CMPX) had 30-Day Put-Call Ratio (Volume) of 0.0134 for 2025-10-13.

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Figures for 2025-10-13

Volatility Metrics
Historical Volatility (Close-to-Close)	0.7315
Historical Volatility (Parkinson)	0.6880
Implied Volatility (Calls)	1.4819
Implied Volatility (Puts)	1.9463
Implied Volatility (Mean)	1.7141
Put-Call Implied Volatility Ratio	1.3134
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	0.0134
Put-Call Ratio (Open Interest)	0.0095