Costco (COST) vs Walmart (WMT)
Costco (COST) and Walmart (WMT) side by side: both in Consumer Staples, listed on Nasdaq Stock Market and New York Stock Exchange. Walmart is the larger of the two by approximate market capitalization (about 2.0×).
| Field | Costco | Walmart |
|---|---|---|
| Legal name | Costco Wholesale Corporation | Walmart Inc. |
| Ticker | COST | WMT |
| Exchange | Nasdaq Stock Market XNAS | New York Stock Exchange XNYS |
| Jurisdiction | United States | United States |
| Sector | Consumer Staples | Consumer Staples |
| Industry | Warehouse club retail | Discount & grocery retail |
| Market cap ≈ | $419.3bn | $817.9bn |
| Founded | 1983 | 1962 |
| Reporting currency | USD | USD |
| LEI | 29DX7H14B9S6O3FD6V18 | Y87794H0US1R65VBXU25 |
| ISIN | US22160K1051 | US9311421039 |
| FIGI | BBG001S9KRQ7 | BBG001S5XH92 |
| Index membership | S&P 500, Nasdaq-100 | S&P 500 |
| Held by (covered funds) | 1 | — |
Costco
Membership warehouse-club retailer operating 928 warehouses as tagged in its Form 10-Q for the quarter to 10 May 2026; most of its profit comes from annual membership fees rather than merchandise margin.
Walmart
The biggest US grocer and, by revenue, among the two or three largest companies in the world — Amazon overtook it on the most recent reported year. Its Form 10-K for the year to 31 January 2026 reports more than 10,900 stores in 19 countries, alongside a fast-growing e-commerce and advertising business.
What they share
Same indices: S&P 500
Market caps are computed from each issuer's own filed share count times the close on 2026-08-28, not copied from a vendor; LEI from GLEIF (CC0), ISIN read from each issuer's own primary listing document with its ISO 6166 check digit validated, FIGI from OpenFIGI, MIC from the ISO 10383 registry — full provenance on Sources. Not real-time, not investment advice. Both sides as data: /api/v1/companies/costco · /api/v1/companies/walmart