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 2.0×).
| Field | Walmart | Costco |
|---|---|---|
| Legal name | Walmart Inc. | Costco Wholesale Corporation |
| Ticker | WMT | COST |
| Exchange | New York Stock Exchange XNYS | Nasdaq Stock Market XNAS |
| Jurisdiction | United States | United States |
| Sector | Consumer Staples | Consumer Staples |
| Industry | Discount & grocery retail | Warehouse club retail |
| Market cap ≈ | $817.9bn | $419.3bn |
| Founded | 1962 | 1983 |
| Reporting currency | USD | USD |
| LEI | Y87794H0US1R65VBXU25 | 29DX7H14B9S6O3FD6V18 |
| ISIN | US9311421039 | US22160K1051 |
| FIGI | BBG001S5XH92 | BBG001S9KRQ7 |
| Index membership | S&P 500 | S&P 500, Nasdaq-100 |
| Held by (covered funds) | — | 1 |
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.
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.
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/walmart · /api/v1/companies/costco