Put-Call Ratio (Volume) (150-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 150-Day Put-Call Ratio (Volume) of 4.4369 for 2026-05-22.

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Figures for 2026-05-22

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2029
Historical Volatility (Parkinson)	0.1907
Implied Volatility (Calls)	0.2486
Implied Volatility (Puts)	0.2445
Implied Volatility (Mean)	0.2466
Put-Call Implied Volatility Ratio	0.9833
Implied Volatility Skew	0.0151
Option Statistics
Put-Call Ratio (Volume)	4.4369
Put-Call Ratio (Open Interest)	1.5043