Costco Q3 2026 Earnings Beat Estimates

Costco Q3 2026 earnings showed rising profits and U.S. same-store sales strength, prompting traders to eye the call for membership and cost clarity.

May 28, 2026·2 min read
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Flat filled vector of a warehouse cart symbolizing Costco Q3 2026 earnings and membership sales on a light smooth gradient.

KEY TAKEAWAYS

  • EPS $4.93 per diluted share, slightly above consensus of $4.91.
  • U.S. same-store sales topped expectations, led by demand for food and essentials.
  • Company listed a same-day webcast to discuss membership and operational drivers.

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Costco Wholesale Corporation reported rising profits in its fiscal third quarter, releasing results after the May 28, 2026 market close and scheduling a same-day earnings call to discuss sales strength and membership trends.

Earnings and Sales Performance

Costco (Nasdaq: COST) reported third-quarter and year-to-date operating results for the 12 weeks ended May 10, 2026, in a press release at 4:15 p.m. ET. The company posted earnings per diluted share of $4.93, slightly above the consensus estimate of $4.91 from 13 analysts.

Net sales grew year over year, with U.S. core comparable sales outpacing international trends. U.S. same-store sales exceeded market expectations, driven by strong demand for food and other essentials at membership warehouses. This pattern highlighted Costco’s resilience in staples amid changing consumer spending.

Membership Revenue and Operational Drivers

Membership revenue and renewal rates continued to support Costco’s profit model, as membership fees flow directly to the bottom line, unlike merchandise margins. These metrics remain central to sustaining operating profitability amid tightening goods-sell economics.

Fuel prices and foreign-exchange fluctuations remained significant factors affecting quarterly results. Analysts had forecasted roughly $69.7 billion in third-quarter revenue and about 6.7% comparable sales growth. The company’s results, while topping sales expectations, showed a modest earnings edge that kept focus on cost pressures and revenue mix for upcoming quarters.

Costco listed a Q3 earnings call on its investor-relations page for the same day, providing a webcast for investors to review the quarter’s performance and outlook.

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