Costco Q3 FY2026: revenue up 11.6%, EPS $4.93, gross margin 12.8%
Costco's fiscal third quarter lifted total revenue 11.6% to $70.53 billion and diluted EPS 15.2% to $4.93, while gross margin slipped to 12.8% from 13.0%. Read the sales headline with care: reported comparable sales of 9.8% fall to 6.6% once gasoline prices and foreign exchange are stripped out. Membership fees are still compounding and the balance sheet is clean, which is why the overall tilt is positive.
1 · Expected vs. Actual
Free preview belowDiluted EPS of $4.93 is up 15.2% from $4.28, ahead of the 11.6% revenue growth. Part of the gap comes from $73 million more in net interest and other income, which lifted pre-tax profit beyond what operations alone delivered. Operating income rose 11.3% to $2.82 billion, so the core engine grew roughly in line with sales.
Total revenue rose 11.6% to $70.53 billion from $63.21 billion a year earlier, split between $69.15 billion of net sales and $1.37 billion of membership fees. Membership fees grew 10.7% year over year, and that line matters because it is the closest thing Costco has to pure profit. Reported comparable sales of 9.8% are less impressive underneath: excluding gasoline and currency, the figure is 6.6%.
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Figures on this page come from the company's original SEC filings. The analysis is generated automatically and checked against validation rules, but may still contain errors or omissions. Not investment advice. · Generated 2026-09-17
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