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 5.6875 for 2026-06-17.

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Figures for 2026-06-17

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3623
Historical Volatility (Parkinson)	0.4502
Implied Volatility (Calls)	0.5586
Implied Volatility (Puts)	0.5227
Implied Volatility (Mean)	0.5407
Put-Call Implied Volatility Ratio	0.9357
Implied Volatility Skew	0.1372
Option Statistics
Put-Call Ratio (Volume)	5.6875
Put-Call Ratio (Open Interest)	0.5833