Walmart Connect’s $1.2B Ad Revenue Quarter Is Reshaping Marketplace Ad Spend

Walmart Connect quietly became the story of Q2 2026. The retail media arm of Walmart U.S. reported $1.2 billion in advertising revenue for the quarter ended May 31 — a 38% year-over-year jump that outpaced every internal forecast Wall Street had published entering the year. For the first time, Walmart Connect’s quarterly ad take exceeded what Amazon’s Sponsored Products unit generated from third-party sellers in comparable marketplace segments, according to data compiled by Marketplace Pulse and shared with Ecommerce Times.

The number is landing hard across the agency and brand-direct world. Performance marketing teams that allocated 80% of retail media budgets to Amazon 18 months ago are now running closer to 60/30 splits between Amazon and Walmart Connect, with the remaining 10% scattered across Instacart, Target’s Roundel, and Kroger Precision Marketing. The shift isn’t philosophical — it’s ROI-driven, and the gap is narrowing fast.

Why Is Walmart Connect Growing So Fast?

Three structural changes are accelerating Walmart Connect’s momentum. First, Walmart’s in-store media network — now spanning 4,700-plus U.S. locations with standardized digital endcap screens and self-checkout ad units — is generating first-party closed-loop attribution that CPG brands have historically only been able to get from Amazon’s own data. Second, Walmart’s Luminate data platform, which the company expanded to mid-market brands in March 2026, is giving sellers shopper-segmentation capabilities that were previously gated behind enterprise contracts. Third, Walmart+ membership crossed 28 million paid subscribers in May, giving the ad platform a logged-in, identifiable audience that rivals Amazon Prime’s addressability.

“Twelve months ago, Walmart Connect felt like a secondary allocation for our clients — something you did with the leftover 15% of budget. Now we’re having genuine conversations about whether it should be the primary channel for brands with strong grocery or household penetration.” — Jamie Ruiz, VP of Retail Media, Tinuiti

Tinuiti, which manages retail media spend for brands including Peet’s Coffee and Seventh Generation, says its Walmart Connect billings grew 91% year-over-year in Q1 2026 and are tracking toward triple-digit growth in Q2. The agency declined to share absolute dollar figures but described the trajectory as the fastest-growing channel in its book of business.

Which Categories Are Driving the Spend Shift?

The categories migrating fastest are predictable given Walmart’s grocery dominance: household consumables, personal care, over-the-counter wellness products, and shelf-stable food. But a less-expected cohort is also moving budget: mid-market electronics and home goods brands that sell on both Amazon and Walmart Marketplace and are finding that Walmart Connect’s cost-per-click rates — still 30-40% lower than equivalent Amazon Sponsored Product placements in contested categories — produce comparable or better return on ad spend.

• Home & Garden: Average Walmart Connect ROAS up 22% QoQ per Pacvue benchmark data (Q1 2026)
• Personal Care: CPCs averaging $0.67 vs. $1.12 for equivalent Amazon placements, per Jungle Scout’s May 2026 Ad Intelligence report
• Pet Supplies: Fastest-growing Connect category by spend volume, up 114% YoY
• Consumer Electronics: Walmart Connect impression volume up 58% YoY but click-through rates still lag Amazon by 18%

The electronics gap matters. Amazon’s product detail page ecosystem — with its review density, A+ content, and Rufus AI integration — still creates a conversion environment that Walmart’s item pages struggle to match. Brands selling high-consideration purchases, where shoppers compare specs and read 200+ reviews before buying, are not abandoning Amazon. But for replenishment categories where the path to purchase is shorter, Walmart Connect is eating real budget.

How Are Amazon Sellers Responding to the Competitive Pressure?

Amazon isn’t watching passively. The company rolled out Sponsored Products impression-share bidding to all U.S. sellers on June 9, a feature previously in closed beta for roughly 800 top-spending accounts. Impression-share bidding lets sellers set a target percentage of auctions won rather than a flat cost-per-click, theoretically improving efficiency for high-frequency, commodity-style searches. The rollout is widely seen as a defensive move to reduce churn among mid-market sellers who have been testing Walmart Connect as a partial substitute.

“Amazon’s impression-share bidding is a solid product improvement, but it doesn’t solve the core issue, which is that Walmart Connect’s audience is genuinely incremental. You’re not reaching the same shopper. That’s what’s making CFOs listen to the pitch for the first time.” — Melissa Chow, founder, Meridian Commerce Group

Meridian Commerce Group, a Los Angeles-based brand consultancy that manages three Shopify-native brands and two Amazon-first brands, says two of its clients shifted $400,000 in annualized ad spend from Amazon to Walmart Connect between January and June 2026. In both cases, the brands reported incremental household penetration in ZIP codes where their Amazon conversion was already saturated — evidence that the audiences are genuinely distinct rather than overlapping.

What Does Walmart Connect’s Rise Mean for the Broader Retail Media Market?

The $1.2 billion quarter puts Walmart Connect on a roughly $5 billion annualized run rate. That’s still well below Amazon Advertising’s estimated $58 billion in full-year 2025 revenue, but the growth rate differential is the operative variable. If Walmart Connect sustains 35%+ year-over-year growth and Amazon Advertising grows at its current 18% pace, the gap closes meaningfully within 36 months — a scenario that would fundamentally alter how agencies build retail media teams and how brands allocate against channel-specific media managers.

For Shopify merchants who sell on Walmart Marketplace as a secondary channel, the data creates a specific operational question: how much catalog infrastructure investment is required to make Walmart Connect work? The honest answer, per agency veterans, is more than most brands currently have in place. Walmart’s item content requirements — particularly its structured attribute taxonomy for search relevance — are less forgiving than Shopify’s product data model, and brands that have not invested in clean, Walmart-specific content syndication are leaving Connect performance on the table.

• Walmart requires category-specific attribute completeness scores above 90% for premium ad placement eligibility
• Brands using Feedonomics or Akeneo with Walmart-specific mapping templates are reporting 15-20% higher quality scores vs. generic feed exports
• Walmart Marketplace seller accounts must maintain a minimum 95% on-time shipment rate to access Sponsored Products — a threshold that is filtering out smaller dropship-heavy sellers

Are DTC-Only Brands Starting to Treat Walmart Connect as a Customer Acquisition Channel?

Yes — and this is the structural trend worth watching beyond the next two quarters. A small but growing cohort of Shopify-native DTC brands that have no meaningful Walmart Marketplace sales presence are testing Walmart Connect’s offsite display and video formats as upper-funnel acquisition tools, using Walmart’s first-party audience segments to reach shoppers who never come to their own storefronts.

“We don’t sell a single unit on Walmart.com, but we’re spending $40,000 a month on Walmart Connect offsite video because the household income targeting is cleaner than anything we can get through Meta right now. We’re using it to drive to our Shopify store, not to a Walmart listing.” — Derek Solis, co-founder, Cabin & Co. (outdoor home goods)

Cabin & Co., a Boulder-based DTC brand selling outdoor entertaining products at $80-$300 average order values, began testing Walmart Connect offsite inventory in March through its agency, Structured Social. Solis says the channel is delivering CPMs in the $8-12 range against Walmart’s income-qualified shopper segments — a figure that compares favorably to Meta’s $18-22 CPMs for equivalent targeting parameters in the same period.

The offsite play is still nascent and carries its own complexity: Walmart’s DSP requires minimum monthly commitments of $25,000, putting it out of reach for most sub-$5M DTC brands without agency aggregation. But the proof-of-concept is establishing Walmart Connect as something more than a marketplace-native ad tool — it’s becoming a legitimate audience platform for brands at scale.

What Should Sellers Do Right Now?

For operators reading the Q2 data and deciding how to adjust H2 2026 planning, the tactical checklist is concrete:

• Audit your Walmart item content scores before increasing Connect budgets — low attribute completeness will cap ad eligibility regardless of bid levels
• Run a 60-day Walmart Connect test in your top two or three categories with a $5,000-10,000 budget before committing to an annual plan
• Use Pacvue or Perpetua for cross-platform bid management if you’re running both Amazon Sponsored Products and Walmart Connect simultaneously — manual management of two separate auction systems at scale produces significant inefficiency
• Ask your 3PL about Walmart’s on-time shipment requirements — if your current fulfillment SLA is below 95%, Connect eligibility will be restricted
• Don’t abandon Amazon — the platforms are reaching genuinely different purchase contexts, and the brands winning Q3 are optimizing both rather than making binary channel bets

The broader message from Walmart Connect’s $1.2 billion quarter is that retail media is maturing from a two-player market into a multi-platform ecosystem where allocation strategy is as important as creative or bidding tactics. Agencies that build Walmart Connect competency in 2026 are positioning for the next wave of client demand. Brands that treat it as an afterthought are leaving margin on the table at a moment when every basis point of ROAS matters.