Walmart’s E-Commerce Grew 23% in a Quarter: Why the Playbook Is Marketplace, Not Store

A Legacy Retailer Posts Tech-Company E-Commerce Growth

On 20 August 2026, Walmart reported results for its fiscal second quarter, the 13-week period ended 31 July 2026, and the digital numbers read like a fast-growing platform rather than a 60-year-old retailer. According to Walmart’s Q2 FY27 earnings release, total revenues rose 5.9% and global e-commerce grew 23% year over year, “driven by demand for convenient, fast delivery.”

That 23% headline is impressive on its own, but it undersells what is actually happening. Break the quarter apart and the growth is concentrated in exactly the parts of the business that most resemble a technology platform: the marketplace, the fulfillment services layer that supports it, and the advertising business that monetizes the resulting traffic. Walmart is not simply selling more of its own inventory online. It is increasingly operating as a platform on which other businesses sell, ship and advertise — and taking a margin at each step.

Marketplace and Advertising Are the Real Engine

The channel-level figures make the shift explicit. Walmart U.S. e-commerce grew 24% in the quarter, per Digital Commerce 360’s breakdown, while the Walmart Marketplace — where third-party sellers list goods Walmart never buys — grew 52% year over year, more than double the overall e-commerce rate. Sam’s Club U.S. online sales rose 26% and international e-commerce grew 19%. When the third-party layer grows at roughly twice the pace of the whole, the center of gravity is moving toward the platform.

Two adjacent businesses reveal why this matters for margins. Per Walmart’s Q2 FY27 results, global advertising rose 38% in the quarter, with its U.S. Walmart Connect ad business up 43% excluding VIZIO, and more than half of its marketplace business now flows through Walmart’s own fulfillment services. Advertising and fulfillment are high-margin, capital-light revenue streams that ride on top of the transaction — a retail-media-and-logistics flywheel that looks far more like Amazon’s economics than like traditional grocery retail. The retailer also noted that the number of customers using its Sparky AI shopping agent grew 70% year over year, a signal that the discovery layer is being rebuilt around AI-assisted shopping.

The Market’s Mixed Verdict

Strong operational numbers did not translate into an unambiguous market win. As WWD reported, Walmart raised its full-year sales and operating-income growth guidance on the strength of the quarter, yet the stock fell after the report as investors weighed margin pressures and lofty expectations against the growth. Part of the U.S. comp-sales figure — 2.6% growth excluding fuel — absorbed a 125-basis-point negative hit from pharmacy pricing legislation, a reminder that even a platform pivot operates inside a regulated, low-margin core business.

The tension is instructive. A retailer can post platform-grade e-commerce and advertising growth and still see its stock dip because the market is now pricing the quality and durability of that growth, not just its rate. For anyone studying the digital economy, the lesson is that “e-commerce up 23%” is no longer a sufficient story on its own — investors and operators alike now look through to the mix: how much is third-party, how much is ad-funded, and how much is genuinely additional margin versus revenue Walmart is buying with heavy fulfillment investment.

What This Means for Digital-Economy Operators

Walmart’s quarter is a blueprint that scales down. The strategic moves that drove its digital growth are available to marketplaces, retailers and platforms at any size, including across Africa and the Middle East.

1. Build the marketplace layer, not just your own catalogue

Walmart’s marketplace grew 52% versus 23% for total e-commerce — third-party selection compounds faster than owned inventory because you add assortment without buying it. If you run an online retailer, prioritize a third-party seller program with clear onboarding, trust-and-safety controls and a fulfillment option. Owned inventory ties up capital; a marketplace layer grows selection and GMV with far less balance-sheet risk. The catch, as the AliExpress DSA fine underlined this summer, is that the marketplace layer also imports product-safety liability — so build the controls in from the start.

2. Turn fulfillment into a product you sell to your sellers

More than half of Walmart’s marketplace business now runs through its own fulfillment services — a high-margin service layer wrapped around logistics. Any platform with warehousing or delivery capacity should package it as an opt-in service for third-party sellers rather than treating logistics as pure cost. Fulfillment-as-a-service raises seller retention (it is a switching cost) and creates a recurring, margin-rich revenue line that grows with marketplace volume rather than with your own inventory.

3. Stand up a retail-media business before you think you are big enough

Walmart’s advertising grew 38% globally and 43% in the U.S. because it monetizes shopper attention it already owns. Retail media is the highest-margin revenue in commerce, and you do not need Walmart’s scale to start — even a mid-sized marketplace has first-party shopping intent that brands will pay to reach. Build sponsored-listing and on-site ad inventory early; it funds price competitiveness elsewhere and turns your traffic into a second income stream that does not depend on taking inventory risk.

4. Rebuild discovery around AI-assisted shopping

Walmart’s Sparky AI agent saw 70% more users year over year, signalling that product discovery is shifting from search-and-browse to conversational, agent-led shopping. Operators should start instrumenting for AI-assisted discovery now — structured product data, clean feeds, and an assistant layer — because the discovery interface is being rewritten. Sellers and platforms that are legible to AI shopping agents will capture demand; those that are not will become invisible in an agent-mediated storefront.

The Structural Lesson: Retail Margin Is Migrating to the Platform Layer

Step back and Walmart’s quarter describes a broader migration in the digital economy: value is moving from the shelf to the platform. The store still matters — it is the fulfillment network and the traffic source — but the margin growth is in the layers built on top of it: the marketplace that adds selection without inventory, the fulfillment service that monetizes logistics, and the retail-media business that monetizes attention. Each is capital-light, each compounds, and each looks more like software economics than retail.

For emerging-market operators, the encouraging reading is that these are not scale-gated moves. A marketplace layer, a fulfillment-as-a-service offer, a sponsored-listings business and AI-legible product data can be built by a regional platform with a fraction of Walmart’s resources — and they change the unit economics in the same direction. The cautionary reading is the one the market delivered on 20 August: growth alone no longer earns applause. The durable winners will be the platforms whose e-commerce growth is increasingly third-party, ad-funded and margin-rich — not the ones simply moving more of their own boxes online.

Frequently Asked Questions

Sources & Further Reading

• Walmart Releases Q2 FY27 Earnings — Walmart Corporate
• Walmart online sales benefit from convenient, fast delivery in Q2 — Digital Commerce 360
• Walmart Posts Healthy Quarter, Raises Its 2026 Outlook but Stock Falls — WWD
• Commission fines AliExpress €550 million for breaching the Digital Services Act — European Commission