WillItSurvive
Retail and consumer conglomerates · United States

Costco Wholesale

costco.com ↗

Membership warehouse club selling bulk goods near cost, profit comes from membership fees not markup.

Hard to displace
Assessed 20 July 2026 · Evidence as of 20 July 2026
Strong structural protection; the business model survives ai pressure.
On the recordSince 20 July 2026 · Checkable from September 24, 2026 · Every call on the record Checkpoint: Q4 FY2026 earnings release
The call

Costco keeps growing members and sales while Walmart copies the fee idea without yet pulling members away.

Costco runs a warehouse club that charges members an annual fee to shop for discounted bulk goods. The company makes almost two-thirds of its profit from membership fees rather than from selling products themselves, which means they can offer better prices than rivals without losing money. Walmart is trying to compete with its own membership program that grew 17% recently, but copying Costco's approach would force Walmart to cut its regular business profits in half, making it extremely painful. The key thing to watch: if Costco's membership renewal rate drops below 90% or if it stops attracting new members at a healthy pace, that would signal Walmart's challenge is actually working.

Why
01
AI pressure: None apparent. AI shopping agents can't easily replace a physical warehouse trip built around bulk buys, samples, and treasure-hunt finds. Could AI do the core job? Unlikely.
02
Bigger players: Walmart (Walmart+ membership program). Walmart+ fee revenue up 17% and framed as 'beating Costco at its own game,' but this grows Walmart's own base, not proven to pull members from Costco. Could a giant copy it? No, they are blocked.
03
What protects it. Membership renewal near 90% plus a cost structure competitors can't copy without giving up their own margins.
What would change this call
Costco reports US membership renewal rate in next quarterly filing. A drop below 90% would signal Walmart+ or others are pulling members away.
Costco reports new-member growth rate in FY2026 Q4 earnings (~Sept 24, 2026). Continued deceleration below 4.1% would suggest slowing demand for the model.
Walmart discloses Walmart+ subscriber counts or churn data tied to Costco comparisons. Would show whether Walmart+ growth is net new share or its own base expansion.
Key numbers
  • US renewal rate ~92%, global ~90% (2025-10-17)
  • Membership fees ~64% of operating profit (2026-07-18)
  • Q3 FY2026 net sales $69.15B, up 11.6% (2026-05-10)
Named risks
  • New-member growth decelerated to 4.1% in Q3 FY2026, a watch item for renewal health. Severity: medium
  • Stock trades at elevated 46 to 52x P/E as of May 2026, sensitive to any growth slowdown. Severity: medium
  • Class action lawsuit alleges heavy metals in Orgain protein powder sold at Costco, filed Jul 2026. Severity: medium
  • Aggressive warehouse expansion to 940 locations by FYE2026 with ~$6.5B capex raises execution risk. Severity: low
  • Walmart+ membership and ad-business growth threatens to erode Costco's fee-based moat narrative. Severity: medium
Rivals, as read in July 2026
RivalDirectionEvidence
Walmartgaining onWalmart+ membership fee revenue up 17% enterprise-wide, framed as beating Costco, Jul 2026
Sam's Clubgaining onRemains distant third to Costco after 43 years under Walmart ownership, per Jul 2026 analysis
AmazoncontestingNamed as broader membership/e-commerce competitor amid Costco's AI-search traffic growth, Jun 2026
Questions people ask
Is Costco Wholesale profitable in 2026?
Yes. For Q3 FY2026 (ended May 10, 2026), Costco reported net income of $2.192 billion, up 15% year over year, on net sales of $69.15 billion (+11.6% YoY), per its investor relations report published May 27, 2026.
Could AI replace Costco's business model?
Unlikely for its core operations. Costco's moat is physical bulk distribution and a membership-fee revenue base, not software. CEO Ron Vachris said on May 28, 2026 that AI is meant to 'elevate' workers, not replace skilled buyers or employee evaluations.
Who is Costco's biggest competitor?
Walmart, via its Walmart+ membership program, is the most direct challenger to Costco's fee-based model. Walmart's membership fee revenue grew 17% enterprise-wide as of July 18, 2026, with press framing it as 'beating Costco at its own game.'
Is Costco stock overvalued?
Some analysts flag it as expensive. Costco traded at roughly 46 to 52 times earnings as of May 28, 2026, with a market cap of about $445 billion that day, prompting InvestingPro-style commentary that the stock is priced for continued perfection.
Is Costco losing members to Sam's Club or Walmart+?
Not yet by the numbers. Costco's global renewal rate was about 90% (92% in the US) as of October 17, 2025, and total paid members approached 83 million by July 19, 2026, though new-member growth slowed to 4.1% in Q3 FY2026.
Who owns Costco Wholesale?
Costco is publicly traded on Nasdaq under ticker COST with no controlling parent company. Ron Vachris, a 40-plus year Costco veteran, has been CEO since January 1, 2024, succeeding Craig Jelinek per an October 18, 2023 announcement.
Timeline
  • 2026-07-19Costco announces 7 new warehouses, reaches 928 total, nears 83 million paid members
  • 2026-07-18Walmart+ membership fee revenue up 17% enterprise-wide, framed as rivaling Costco's model
  • 2026-07-09Class action filed alleging heavy metals in Costco's Orgain protein powder
  • 2026-05-28Costco CEO Vachris says AI will elevate, not replace, workers on Q3 FY26 earnings call
  • 2026-05-10Q3 FY2026 quarter ends: net sales $69.15B, comp sales +9.8%, net income $2.192B
  • 2025-10-17Reports show Costco membership renewal rate at ~92% US, ~90% global
  • 2024-09-03Costco raises membership fees to $65 Gold Star / $130 Executive, first hike since 2017
  • 2024-01-01Ron Vachris becomes Costco CEO, succeeding Craig Jelinek
  • 2023-10-18Costco announces CEO succession plan naming Ron Vachris as incoming CEO
Revision history
20 July 2026
First assessed. Hard to displace. The text above is fixed as of this date and is not edited afterwards.
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