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Consumer Defensive · Discount Stores · US

Costco Wholesale Corp COST

$1066 · close of Nov 9, 2026

Trust economics: passing scale economies to members via low prices builds unbreakable loyalty and compounding retention.

AI score · Solid · analysis May 8, 2026
7.7 of 10

Moat and Management hold this up; Valuation is the soft spot.

Moat9.0
Management9.0
Valuation3.0
Risk · 10 = lowest9.0
Business model9.0
Optionality8.0
Fair value
AI fair value
$678.81
as of Nov 10, 2026
Base case
$540.88
the single most likely path
Analyst consensus
$1071
41 analysts · 12-month target
Price
$1066
price 57% above the AI fair value

The price needs 18.0% growth a year for ten years. The AI thinks 7.0% is achievable, at a 4.0% margin.

Costco trades at a premium because its membership moat generates sticky, high-margin fees (75% of profits) on top of massive scale, but the stock price assumes unrealistically fast growth (20% needed) that its store expansion can't deliver forever. With steady 7% growth from 30 new warehouses yearly and slight margin gains to 4% from private labels, it's worth about 20-25% less than today—fairly valued for a defensive compounder, not a bargain. Main risk: if e-commerce or international stalls, margins stay flat and growth slows to 5%.

The business

Costco Wholesale Corporation, together with its subsidiaries, engages in the operation of membership warehouses in the United States, Puerto Rico, Canada, Mexico, Japan, the United Kingdom, Korea, Australia, Taiwan, China, Spain, France, Sweden, Iceland, and New Zealand. It offers merchandise, including sundries, dry groceries, candies, coolers, freezers, liquor, and tobacco; non-food merchandise comprising consumer electronics, appliances, small electrics, health and beauty aids, hardware, lawn and garden, sporting goods, tires, toys and seasonal, automotive, stamps, tickets, apparel, furniture, domestics, housewares, special order kiosks, and jewelry; and fresh food, such as meat, produce, deli, and bakery products. The company is also involved in warehouse ancillary operations, which include gasoline, pharmacies, food courts, optical, hearing aids, and tire installation centers. In addition, it engages in e-commerce, business centers, travel, and other businesses. Further, the company operates e-commerce sites; and offers branded and private-label products in various categories. The company was formerly known as Costco Companies, Inc. and changed its name to Costco Wholesale Corporation in August 1999. Costco Wholesale Corporation was founded in 1976 and is based in Issaquah, Washington.

Last report Sep 24, 2026 · next Dec 10, 2026

Write why this business works, set your own fair value, and let the briefing speak only when a rule you wrote is crossed.

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General investment analysis · not personalized advice · the figures carry their dates