Quick answer: Costco earnings: Costco lists its fiscal Q4 2026 earnings results and earnings call for Thursday, September 24, 2026. The company’s events page does not state a public call time, so this guide does not infer one. Costco’s official August sales release reported fiscal-Q4 net sales of $93.9 billion, up 11.3% year over year.
This is an educational, source-based guide, not investment advice or a price forecast.
Costco earnings date: what is confirmed
| Item | Official detail |
|---|---|
| Company | Costco Wholesale (Nasdaq: COST) |
| Events listed | Fiscal Q4 2026 earnings results and earnings call |
| Scheduled date | Thursday, September 24, 2026 |
| Call time | Not stated on Costco’s public events page |
| Primary source | Costco investor relations |
Because the official events page does not publish a time, readers should check Costco’s investor-relations events page and the company’s earnings materials on September 24 rather than relying on unconfirmed calendar entries.
Official sales context before Q4 results
Costco’s September 2 release was a sales update, not a complete earnings report. Still, it provides a useful company-supplied baseline for reading the full Q4 release.
| Reported period | Net sales | Year-over-year change |
|---|---|---|
| Four weeks ended August 30, 2026 | $23.70 billion | +9.9% |
| Fiscal Q4 (16 weeks) | $93.9 billion | +11.3% |
| Fiscal year (52 weeks) | $297.3 billion | +10.2% |
That same release reported comparable sales growth of 9.4% for the fiscal quarter overall and 10.7% for the U.S. fiscal quarter, excluding the company’s stated effects. These figures give context, but they do not disclose full-quarter profit, margins, membership-fee income, cash flow, or guidance.
Why sales are not the same as earnings
Revenue can be strong while earnings tell a different story. When Costco reports, the complete release and filing may add information on gross margin, selling costs, membership metrics, inventory, cash flow, and forward-looking commentary. Each should be read in the company’s own reporting context instead of inferred from one sales number.
Five checks when Costco reports
- Compare revenue with the sales baseline: Match reported quarterly revenue with Costco’s prior $93.9 billion Q4 sales update, noting that timing and reporting definitions matter.
- Read profitability in the release: Use reported earnings and margin discussion; do not calculate a conclusion from comparable sales alone.
- Separate membership disclosures from assumptions: Check whether the company actually provides renewal or membership information.
- Look at comparable-sales drivers: Read the company’s explanation of traffic, mix, currency, fuel, or other effects before assigning a cause.
- Check the forward view: Treat management commentary as guidance at that date and review its stated risks and assumptions.
What this page cannot tell you
This guide does not predict COST’s share-price reaction, recommend a trade, or supply a call time that Costco has not publicly listed. Its purpose is to make the official reporting date and the most relevant company-provided sales context easier to verify.
Related source-based reading
- AutoZone Earnings: Fiscal Q4 2026 Preview and What to Watch
- FOMC Minutes: Oct. 7, 2026 Time and Investor Guide
Primary sources
FAQ
When are Costco’s fiscal Q4 2026 earnings?
Costco lists both its fiscal Q4 2026 earnings results and earnings call for Thursday, September 24, 2026.
Does Costco’s August sales release include full earnings?
No. The release reports sales and comparable-sales data. Readers should use the earnings release and related company materials for profit, margins, cash flow, and other complete results.
Last reviewed September 21, 2026. This article is educational information and is not personalized investment, tax, or legal advice.