Walmart is an omnichannel retailer built around high-volume merchandise sales, store and club traffic, digital commerce, and a growing set of retail services. The company sells grocery, consumables, health and wellness products, general merchandise, fuel, and other categories through Walmart stores, Sam’s Club warehouse clubs, eCommerce sites, marketplaces, pickup, and delivery.
Its reportable segments are Walmart U.S., Walmart International, and Sam’s Club U.S. Walmart U.S. is the core scale and profit engine. Sam’s Club U.S. adds a paid-membership warehouse model with recurring fee income and strong club traffic. Walmart International gives the company exposure to markets including Mexico and Central America, China, Canada, India through Flipkart, and other regions.
Main revenue streams include
- Retail merchandise: Walmart’s largest revenue source, led by grocery and consumables, with health and wellness, general merchandise, and fuel also important.
- Membership income: Sam’s Club earns paid membership fees, while Walmart is also developing broader membership economics through Walmart+ and bundled membership offers.
- eCommerce and marketplace: Walmart sells directly online and operates third-party marketplaces. In Q2 FY2027, global eCommerce sales rose 23%, Walmart U.S. eCommerce rose 24%, Sam’s Club U.S. eCommerce rose 26%, and International eCommerce rose 19%.
- Fulfillment services: Walmart uses stores, clubs, supply chain assets, and delivery capacity to support pickup, delivery, and marketplace fulfillment. Nearly 50% of Walmart’s marketplace business flowed through fulfillment services in Q2 FY2027.
- Advertising: Walmart Connect in the U.S. and international ad platforms, including Flipkart Ads, monetize shopper traffic and retail data. Global advertising grew 38% in Q2 FY2027, while Walmart Connect U.S. grew 43% excluding VIZIO.
Walmart’s competitive advantages start with scale. The company reported about $713 billion of revenue in fiscal 2026, employed about 2.1 million associates worldwide, and operated more than 10,900 stores and clubs in 19 countries with eCommerce websites. This scale supports purchasing leverage, broad assortment, supplier access, price investment, and dense fulfillment coverage.
The physical footprint is a major part of the digital model. Stores and clubs serve as local fulfillment nodes for pickup, delivery, and marketplace orders, helping Walmart compete against Amazon in convenience while retaining a cost advantage in grocery and everyday essentials. The company’s value-price positioning also supports traffic across income cohorts, and management said Walmart continued gaining U.S. market share across income cohorts in Q2 FY2027 while investing in more than 11,000 price rollbacks.
Walmart’s market position is strongest in U.S. mass retail and grocery, where it competes directly with Amazon, Costco, Target, Kroger, dollar stores, regional grocers, and club retailers. Compared with Amazon, Walmart has a larger physical store base and stronger grocery presence, while Amazon has greater depth in cloud computing and a more mature third-party marketplace model. Compared with Costco, Walmart has broader formats and a larger omnichannel network, while Costco remains highly focused on warehouse club membership economics.
Internationally, Walmart competes with local grocers, warehouse clubs, eCommerce platforms, and regional retailers. China is meaningful but not dominant because it sits inside Walmart International rather than as a separately reported segment. As of July 31, 2026, Walmart China had 345 retail units, including 278 Walmart Supercenters and 67 Sam’s Clubs. China Q2 FY2027 constant-currency net sales were $7.0 billion, up 20.7%, with comparable sales up 9.7% and eCommerce net sales up 26%. China’s digital mix reached 55%, reflecting a large delivery and app-based ordering business.
Walmart’s current market position is that of a global retail incumbent expanding beyond low-margin merchandise resale into higher-margin, less inventory-intensive activities. Q2 FY2027 total revenue grew 5.9%, operating income rose 28.8%, and adjusted operating income in constant currency increased 17.4%. The mix shift toward marketplace, advertising, membership, and fulfillment services is important because these businesses improve monetization of Walmart’s traffic, data, and logistics network without relying only on owned inventory sales.