Costco September Net Sales Rise 13% as Margin Questions Linger

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Costco Wholesale reported 13% growth in September net sales, a strong start to fiscal 2027, with management highlighting broad-based gains across same-store sales, e-commerce operations and international clubs. Analysts flagged that part of the sales lift appears tied to one-off or lower-margin drivers that may weigh on profitability. The company runs large membership-only warehouse clubs across North America, Europe and Asia, and the September figures touch both its warehouse rollout story and the economics behind it. Strong same-store performance and online gains suggest recent capital spending is at least supporting higher volumes, though analyst comments on temporary fuel, pharmacy or promotional activity put pressure on the assumption that traffic converts into healthy profitability. The article was produced by Simply Wall St.

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Costco Wholesale Corp
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September net sales rose 13% with broad-based same-store, e-commerce and international gains.

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Simply Wall Sti
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