Walmart Inc.

WMT ·Consumer Cyclical, Department Stores, United States

Walmart Inc. (WMT)

Overview

Walmart Inc. is the world's largest retailer by revenue, operating a sprawling network of hypermarkets, supercenters, discount department stores, grocery stores, and membership warehouse clubs across the United States and roughly 18 other countries. Headquartered in Bentonville, Arkansas, the company was founded in 1962 by Sam Walton and has grown into one of the largest private employers on Earth, with roughly 2.1 million associates worldwide and more than 10,700 retail units, including its Sam's Club warehouse chain and international banners. For its fiscal year 2026 (ended January 31, 2026), Walmart reported total revenue of $713.2 billion and net income of $21.9 billion, cementing its position as a perennial fixture at or near the top of the Fortune Global 500 and a bellwether stock in the S&P 500's consumer staples/retail complex.

What They Do & How They Make Money

At its core, Walmart is a mass merchandiser: it buys goods — groceries, general merchandise, apparel, electronics, health and wellness products — in enormous volume and sells them at low prices through physical stores and, increasingly, online. The classic model is "everyday low prices" driven by scale purchasing power, an efficient logistics and distribution network, and tight cost control, with the company earning a modest margin on a very high volume of transactions. Grocery is the anchor of the business, now accounting for more than half of U.S. sales, which drives frequent customer visits that also support higher-margin general merchandise purchases.

Beyond the traditional retail engine, Walmart has been aggressively diversifying its profit mix toward higher-margin, capital-light revenue streams. Membership fees from Sam's Club (and increasingly Walmart+ in the core business) provide recurring, high-margin subscription revenue. A fast-growing marketplace business lets third-party sellers list products on Walmart.com in exchange for referral fees, expanding assortment without Walmart holding the inventory. Walmart Connect, the company's retail media/advertising arm, sells ad placements to brands and suppliers across Walmart's and Sam's Club's digital properties — leveraging the retailer's enormous first-party shopper data — and has become one of the fastest-growing pieces of the business, with global advertising revenue surging 46% to nearly $6.4 billion in fiscal 2026. Walmart also earns revenue from financial services, data monetization, and fulfillment services (renting out its logistics network to other companies), and it operates a growing delivery and pickup business that monetizes its dense store footprint as a de facto distribution network. Together, these newer businesses are lower-capital, higher-margin complements to the low-margin core of selling physical goods, and management increasingly frames Walmart as a hybrid retailer-and-platform rather than a pure brick-and-mortar chain.

Business Segments

Walmart reports results across three segments:

Walmart U.S. — The company's largest segment by far, comprising its namesake supercenters, discount stores, and neighborhood markets across the United States, plus Walmart.com and the associated marketplace, advertising, and membership (Walmart+) businesses. In fiscal 2026, this segment generated $483.0 billion in net sales (roughly two-thirds of total company revenue) and $25.2 billion in operating income, making it both the largest revenue contributor and the largest profit contributor.
Walmart International — Encompasses all retail operations outside the U.S., including markets such as Mexico (Walmex), Canada, China, and various Central American operations, spanning supercenters, cash-and-carry formats, and e-commerce. This segment posted $130.4 billion in net sales and $5.1 billion in operating income in fiscal 2026, with sales up 7.0% but operating income down about 7.2% year-over-year, reflecting a mixed margin picture across diverse international markets.
Sam's Club — The company's U.S. membership warehouse club chain, competing directly with Costco and BJ's Wholesale. Sam's Club contributed $93.0 billion in net sales and $2.4 billion in operating income in fiscal 2026, with membership income (recurring, high-margin fees) an increasingly important profit driver as the club grows its member base and Plus-tier penetration.

Momentum in the most recent reported quarter (Q2 fiscal 2027, ended roughly July 2026) showed continued strength across the business: Walmart U.S. comparable sales grew 2.6% with e-commerce up 24% and marketplace net sales up more than 50%; Sam's Club U.S. comps grew 4.4% with e-commerce up 26%; and Walmart International net sales grew 7.9% in constant currency with advertising up 20%. Company-wide, global advertising revenue grew 38% and global e-commerce grew 23% in that quarter, underscoring that the digital and advertising businesses are growing several multiples faster than the legacy store-based business.

Competitors

Walmart competes across several distinct battlegrounds, and its competitive set varies significantly by category:

Grocery: Kroger, Albertsons (Safeway, Acme, Shaw's), Publix, Ahold Delhaize (Stop & Shop, Giant), and regional chains — Walmart is now effectively the largest grocer in the U.S. by revenue.
General merchandise / discount retail: Target, along with small-box discounters Dollar General and Dollar Tree/Family Dollar, which compete for value-conscious shoppers, especially in rural and lower-income markets.
Warehouse clubs: Costco and BJ's Wholesale Club compete directly with Sam's Club for membership-based bulk shopping.
E-commerce and marketplace: Amazon is by far Walmart's largest and most direct threat in online retail, commanding an estimated 35-40% of U.S. e-commerce sales versus Walmart's roughly high-single-digit share; Walmart is nonetheless the clear #2 U.S. online retailer and is closing the gap fastest in grocery e-commerce.
Advertising/retail media: Amazon Ads, Instacart, Kroger's Precision Marketing, and Target's Roundel all compete for the same brand ad dollars that Walmart Connect is chasing.
Pharmacy and health: CVS Health, Walgreens, and increasingly Amazon Pharmacy compete with Walmart's in-store pharmacies and health clinics.
International: Walmart faces different rivals market by market — for example, local hypermarket chains, Mercado Libre, and Amazon in Mexico, or Chinese e-commerce giants like Alibaba's platforms via its stake in JD.com in China.

Competitive Position

Walmart's moat rests on scale advantages that are extraordinarily difficult to replicate: unmatched purchasing power with suppliers, one of the most efficient private logistics and distribution networks in the world, a dense store footprint (roughly 90% of Americans live within 10 miles of a Walmart) that doubles as a fulfillment network for online orders, and decades of accumulated cost discipline embedded in its culture and systems. This scale lets Walmart sustain the low prices that anchor its brand promise while still generating positive returns, a combination that's genuinely hard for smaller rivals to match. Grocery — a low-margin but high-frequency category — is a particular strength: Walmart's dominance in food retail drives consistent foot traffic that cross-sells higher-margin general merchandise, and it has increasingly leaned into this by expanding fresh and private-label grocery assortments.

The company's newer growth engines — advertising, marketplace, and membership — are strategically important because they diversify Walmart's profit pool away from thin retail margins toward higher-margin, more scalable revenue streams, and they are growing far faster than the core store base. This is Walmart's clearest answer to the "Amazon problem": rather than simply defending market share store by store, Walmart is building its own version of a retail media and marketplace ecosystem on top of its existing scale and shopper data, monetizing both its physical footprint and its e-commerce growth. Notably, Walmart has narrowed the e-commerce gap with Amazon over time, particularly in grocery, where its store network gives it an edge in fast, low-cost pickup and delivery that Amazon has struggled to match at scale.

That said, Walmart faces real structural risks. Its heritage as a price leader constrains pricing power and keeps overall operating margins thin (historically in the 4% range), meaning small cost shocks — tariffs, wage inflation, freight costs, or supply chain disruption — can meaningfully move profitability, as seen in periods where tariff-related costs and refunds swung operating income sharply quarter to quarter. Amazon and other digital-native competitors continue to build layered ecosystems (commerce, advertising, cloud, subscriptions, logistics-for-hire) that could structurally out-earn Walmart's retail-anchored model over the long run even if Walmart's absolute sales stay larger. Walmart also faces continued pressure to fund heavy capital investment — automation, supply chain modernization, AI, and store remodels — with no guarantee that spending translates into proportionally higher returns, and it must manage rising labor costs and potential minimum-wage or unionization pressure across its enormous workforce. Finally, intensifying discount and dollar-store competition at the low end, and Costco/BJ's competition in the club channel, mean Walmart cannot take its price-leadership position for granted in any single format. On balance, Walmart enters the second half of the 2020s as the largest and arguably best-positioned traditional retailer in the world, but one whose long-term investment thesis increasingly hinges on whether its digital, advertising, and membership businesses can lift overall profitability rather than merely defending its enormous existing sales base.