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.

Costco Wholesale Corporation (COST) had 30-Day Put-Call Ratio (Volume) of 9.3800 for 2025-12-17.

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Figures for 2025-12-17

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1958
Historical Volatility (Parkinson)	0.1877
Implied Volatility (Calls)	0.2052
Implied Volatility (Puts)	0.2005
Implied Volatility (Mean)	0.2028
Put-Call Implied Volatility Ratio	0.9771
Implied Volatility Skew	0.0319
Option Statistics
Put-Call Ratio (Volume)	9.3800
Put-Call Ratio (Open Interest)	0.8238