Finance.Foundation
Comparison · seed-0.6 · 2026-08-29

Walmart (WMT) vs Costco (COST)

Walmart (WMT) and Costco (COST) side by side: both in Consumer Staples, listed on New York Stock Exchange and Nasdaq Stock Market. Walmart is the larger of the two by approximate market capitalization (about 1.9×).

FieldWalmartCostco
Legal nameWalmart Inc.Costco Wholesale Corporation
TickerWMTCOST
ExchangeNew York Stock Exchange XNYSNasdaq Stock Market XNAS
JurisdictionUnited StatesUnited States
SectorConsumer StaplesConsumer Staples
IndustryDiscount & grocery retailWarehouse club retail
Market cap ≈$800bn$420bn
Founded19621983
Reporting currencyUSDUSD
LEIY87794H0US1R65VBXU2529DX7H14B9S6O3FD6V18
ISINUS9311421039US22160K1051
FIGIBBG001S5XH92BBG001S9KRQ7
Index membershipS&P 500S&P 500, Nasdaq-100
Held by (covered funds)1

Walmart

The world's largest company by revenue (over $650bn annually) and the biggest US grocer, running about 10,500 stores plus a fast-growing e-commerce and advertising business.

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Costco

Membership warehouse-club retailer with around 900 locations worldwide; most of its profit comes from annual membership fees rather than merchandise margin.

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What they share

Same indices: S&P 500

Approximate reference values (seed-0.6 · 2026-08-29) — not real-time, not investment advice. Both sides as data: /api/v1/companies/walmart · /api/v1/companies/costco