Walmart Marketplace Growth Reaches Fastest Pace in Years

Why It Matters

The acceleration positions Walmart as a credible alternative to Amazon, offering sellers a faster, lower‑risk channel that can boost profitability and diversify revenue streams across North America.

Key Takeaways

• Walmart marketplace GMV reached $15 billion, 10% of U.S. e‑commerce.
• Q1 FY27 third‑party sales grew ~50% YoY, fastest in years.
• Fulfillment Services shipments rose 150%, boosting same‑day delivery reach.
• Walmart Connect ad spend jumped >50%, fueling seller competition.
• New cross‑border marketplace launched in Canada and Mexico.

Pulse Analysis

Walmart’s marketplace surge reflects a strategic pivot toward a low‑inventory, high‑margin model that directly challenges Amazon’s dominance. While Amazon still commands roughly two‑thirds of U.S. e‑commerce GMV, Walmart’s 10% share is expanding at a pace that outstrips the retail giant’s own marketplace growth. This shift is significant for investors and merchants alike, as it signals a broader rebalancing of power among the nation’s largest online retailers and introduces a new competitive lever—speed‑driven fulfillment paired with integrated advertising.

The engine behind the growth is Walmart’s aggressive investment in fulfillment and advertising infrastructure. Walmart Fulfillment Services (WFS) shipped nearly 150% more units in the quarter, extending same‑day or next‑day delivery to about 60% of U.S. households within 30 minutes. This logistical advantage translates into higher visibility for third‑party listings, especially as Walmart Connect advertising spend rose more than 50% year‑over‑year. Sellers are increasingly allocating budget to bid for placement, creating a virtuous cycle where faster delivery and prominent search placement drive sales, which in turn fund further ad spend.

For sellers, the marketplace’s rapid expansion and new cross‑border capabilities open tangible growth pathways. By leveraging Walmart’s existing logistics network, merchants can reach Canadian and Mexican consumers without building separate operations. The combination of accelerated delivery, scalable advertising, and a growing seller ecosystem makes Walmart’s platform an increasingly attractive alternative to Amazon, especially for brands seeking diversified exposure and lower inventory risk. As the marketplace continues to scale, it could reshape the competitive dynamics of North American e‑commerce, prompting both incumbents and newcomers to reassess their channel strategies.