Costco Posts Sales, Margin Gains

Costco Wholesale Corp. said gasoline sales squeezed the company's margins in the first quarter, but gross-margin gains on core items, including food, helped the chain meet analysts' estimates for profitability. In a conference call with analysts last week discussing the results, the company said gross margins in its key product areas food and sundries; hard lines; soft lines;

ISSAQUAH, Wash. — Costco Wholesale Corp. here said gasoline sales squeezed the company's margins in the first quarter, but gross-margin gains on core items, including food, helped the chain meet analysts' estimates for profitability.

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