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.

CoStar Group, Inc. (CSGP) had 30-Day Put-Call Ratio (Volume) of 0.7179 for 2025-10-31.

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Figures for 2025-10-31

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4109
Historical Volatility (Parkinson)	0.3607
Implied Volatility (Calls)	0.3332
Implied Volatility (Puts)	0.3479
Implied Volatility (Mean)	0.3406
Put-Call Implied Volatility Ratio	1.0440
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	0.7179
Put-Call Ratio (Open Interest)	1.1505