Put-Call Ratio (Volume) (20-Day)

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

CSG Systems International, Inc. (CSGS) had 20-Day Put-Call Ratio (Volume) of 0.2143 for 2026-03-06.

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Figures for 2026-03-06

Volatility Metrics
Historical Volatility (Close-to-Close)	0.0243
Historical Volatility (Parkinson)	0.0277
Implied Volatility (Calls)	0.0281
Implied Volatility (Puts)	0.3505
Implied Volatility (Mean)	0.1893
Put-Call Implied Volatility Ratio	12.4794
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	0.2143
Put-Call Ratio (Open Interest)	66.0951