8-K: Costco Q3 2026 Earnings: Strong Sales and Membership Growth

Sentiment:

Quarterly Earnings Report


Costco reported an 11.6% increase in net sales to $69.15 billion for the third quarter of fiscal 2026, driven by robust comparable sales and membership growth.

Summary

  • Net sales for the third quarter rose 11.6% to $69.15 billion compared to $61.96 billion in the prior year.
  • Net income for the quarter reached $2.19 billion, or $4.93 per diluted share, up from $1.90 billion, or $4.28 per diluted share, in the same period last year.
  • Total company comparable sales increased 9.8% (6.6% adjusted for gas and FX).
  • Digitally-enabled comparable sales saw significant growth of 21.5%.
  • Membership income grew 10.7% year-over-year.
  • The company currently operates 931 warehouses globally.

Sentiment

Score: 8

Explanation: StockSavvy.ai views this as a strong performance, reflecting Costco's ability to maintain high membership loyalty and consistent sales growth despite a challenging macroeconomic environment.

Positives

  • Strong top-line growth with net sales increasing 11.6% to $69.15 billion.
  • Diluted EPS grew 15.2% to $4.93 per share.
  • Worldwide membership renewal rate remains high at 89.7%.
  • Digitally-enabled comparable sales growth of 21.5% indicates successful e-commerce and app adoption.
  • Strong cash position with $18.95 billion in cash and cash equivalents.

Negatives

  • Gross margin decreased by 21 basis points compared to Q3 FY25.
  • Selling, general and administrative (SG&A) expenses increased by 20 basis points as a percentage of sales.
  • Operating expenses rose to $6.19 billion from $5.68 billion in the prior year quarter.

Risks

  • Fluctuations in gasoline prices and foreign exchange rates impacting reported comparable sales.
  • Rising costs associated with employee wages and healthcare.
  • Potential impacts from geopolitical conditions, including tariffs and global conflicts.
  • Risks related to the acquisition and development of real estate for new warehouse expansion.
  • Cybersecurity risks regarding the privacy of member and business information.

Future Outlook

The company continues to focus on warehouse expansion, estimating a total of 940 warehouses by the end of fiscal 2026. Management remains committed to lowering everyday low prices and scaling digital enhancements like push notifications and mobile ordering.

Management Comments

  • Management highlighted the scaling of push notifications in the app to streamline warehouse efficiency.
  • Management emphasized the expansion of mobile cake ordering on the Costco app.
  • Management noted the rollout of Pre-Scan technology internationally.

Industry Context

StockSavvy.ai notes that Costco continues to outperform traditional brick-and-mortar retailers by leveraging its membership-based model to drive consistent traffic and high renewal rates, effectively insulating itself from broader retail volatility.

Comparison to Industry Standards

  • Costco's 89.7% renewal rate remains a gold standard in the retail industry, significantly higher than typical subscription-based retail models.
  • The 21.5% growth in digitally-enabled sales demonstrates a successful digital transformation that rivals major e-commerce players like Amazon in terms of customer engagement.
  • Operating margins remain resilient compared to competitors like Walmart and Target, despite inflationary pressures on wages.

Stakeholder Impact

  • Shareholders benefit from consistent earnings growth and dividend payments.
  • Members benefit from the company's commitment to lowering everyday low prices on key items.
  • Employees are impacted by ongoing wage and benefit adjustments as part of the company's operational strategy.

Next Steps

  • Continue warehouse expansion to reach 940 locations by fiscal year-end.
  • Further rollout of Pre-Scan technology in international markets.
  • Ongoing expansion of mobile ordering features within the Costco app.

Key Dates

DateDescription
2026-03-11Opening of Liberty Hill, TX warehouse.
2026-03-13Opening of South St. George, UT warehouse.
2026-05-10End of the third quarter and first 36 weeks of fiscal 2026.
2026-05-28Date of earnings release and conference call.

Recommendation

buy

Costco demonstrates exceptional operational efficiency and a highly defensible business model. With strong membership renewal rates and consistent growth in both physical and digital channels, it remains a core holding for long-term investors.

Keywords

Costco, Retail, Warehouse Club, Earnings, Membership, E-commerce, Fiscal Results

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