Retail Media’s $6B Playbook Operators Should Steal

TL;DR: Retail media crossed $6 billion in annual ad revenue at Walmart alone in 2025, and the infrastructure powering it — closed-loop measurement, first-party data, full-funnel targeting — is the same playbook high-CAC operators in forex, iGaming, and legal need to run now. Here is what the Commerce All-Stars list reveals about where performance advertising is actually heading.

Closed-Loop Measurement Is Now the Baseline

The clearest signal from Adweek’s 2026 Commerce All-Stars list is that proxy metrics are finished in serious media buying. Walmart Connect’s Ryan Mayward grew the retailer’s global advertising revenue to $6.4 billion in 2025, a 46% year-over-year jump, by building the platform around actual customer behavior and closed-loop measurement rather than impressions and click-through rates. Sam’s Club MAP reported an average 23% sales lift per campaign, powered by 46% new buyers, all verified through deterministic membership data.

That standard is spreading fast. Best Buy Ads now partners with roughly 750 advertisers and delivers an average 36% sales lift with a 3.75x ROAS. Grocery TV, which reaches 1 in 4 Americans across 6,500 stores, launched closed-loop measurement in April 2025 and immediately reported a 4.7x ROAS average. The pattern is consistent: when measurement connects ad spend directly to verified transactions, advertiser confidence increases, budgets grow, and retention climbs.

For any operator running a paid media program that still reports success in clicks or impressions, this is the benchmark to hold your agency accountable to in 2026.

First-Party Data Is the Actual Competitive Moat

Every operator on this list built their advantage on proprietary data, not platform access. Instacart’s Ali Miller forged partnerships with Meta, TikTok, The Trade Desk, and NBCUniversal specifically to push Instacart’s first-party purchase signals into every layer of the funnel. Ad and other revenue passed $1 billion in 2025 after seven consecutive quarters of double-digit growth. Over 9,000 brands now include Instacart in their media mix, because the data is better than anything a platform algorithm produces independently.

Nestlé’s Neel Arora pushed ecommerce to 20.5% of total sales in 2025 by building a global center of excellence around digital shelf optimization, AI-driven personalization, and retail media — all anchored in owned data infrastructure rather than rented audiences. Christine Gambino at Omnicom pioneered deterministic measurement and clean-room commerce strategies that were central to winning Amazon’s multibillion-dollar media account. The thread: whoever controls the data controls the cost-per-acquisition.

This is exactly the argument behind running a structured performance marketing audit before committing budget to a new channel. If you cannot identify where your first-party data sits and how it feeds your targeting stack, you are paying platform rates with no moat.

The Full-Funnel Build Is Non-Negotiable

Several operators on the All-Stars list were recognized specifically for moving retail media beyond lower-funnel conversion. DoorDash Ads passed $1 billion in annualized ad revenue across 30 countries in its first three years, built on a cost-per-acquisition model that only charges restaurants for ads that convert. Toby Espinosa then acquired Symbiosys in 2025 to extend that reach into offsite channels — connecting the discovery stage to the purchase stage with one measurement framework.

Target’s Roundel now puts more than 30% of investment into offsite media, meeting consumers wherever they are in the shopping journey, including a first-to-market retail media network partnership pilot with OpenAI. Uber Advertising surpassed $2 billion in annualized revenue in 2025, up over 50% year-over-year, by expanding commerce-driven formats across mobility and delivery simultaneously.

The operators who stalled in 2025 were those who ran awareness and conversion as separate budgets with separate teams and separate measurement. The operators who scaled ran them as a single funnel with unified attribution. Audience precision at the top of the funnel only compounds when it feeds verified conversion data at the bottom.

AI Is Rewriting Discovery Before Intent Forms

Bluefish AI co-founder Jing Feng articulates this more directly than most: AI is becoming the first audience. The agentic internet is changing how brands get discovered before a consumer has consciously formed intent. Microsoft’s Tim Frank launched Copilot Checkout, which lets consumers compare, decide, and transact inside a single AI-powered conversation through integrations with Stripe, Shopify, and PayPal. Microsoft’s Commerce and Internet APIs division grew more than 500% year-over-year as a result.

Shopify president Harley Finkelstein spent 2025 building AI-powered shopping infrastructure across ChatGPT, Gemini, and other platforms. Shopify now powers more than 14% of U.S. ecommerce. Criteo’s Sherry Smith introduced Page Intelligence, an AI optimization layer that prepares product pages specifically for AI-driven discovery — because the path to purchase now runs through language model results as often as it runs through a search engine results page.

For operators using AI-powered lead qualification, the implication is direct: the same shift happening in retail discovery is happening in financial product discovery, legal intake, and gaming acquisition. The operators building their content and funnel infrastructure for AI-mediated discovery now will have a structural advantage in 18 months.

What This Means for High-CAC Vertical Operators

The retail media boom is not a consumer goods story. It is a data infrastructure and measurement story, and it translates directly to high-CAC verticals. In iGaming acquisition, the equivalent of Walmart Connect’s closed-loop model is connecting ad spend on Meta or programmatic to verified first deposits, not just registrations. Most iGaming operators are still reporting on registration volume. The operators running deterministic attribution from impression to depositor are seeing the same compounding budget efficiency that Walmart Connect reported.

In forex and broker acquisition, the parallel is connecting upper-funnel content touchpoints — webinars, YouTube, organic search — to funded account opens, not just demo signups. Nestlé’s “e-tensity” framework, which aligns incentives and measurement so digital growth is owned broadly rather than siloed, is the exact operational fix most forex marketing teams need. When the paid media team, the content team, and the CRM team all report against the same funded-account metric, budget efficiency improves without increasing spend.

For law firm and mass tort operators, the retail media lesson is about the inspiration moment. People’s Tory Brangham installed an AI-powered shopping engine that produced clickthrough rates up to 100 times higher than IAB display benchmarks by reaching consumers at the discovery stage, before intent fully formed. Personal injury and mass tort intake runs the same dynamic: the firm that reaches a potential claimant during the research phase, before they have searched for an attorney, wins the case at a fraction of the cost-per-lead of bottom-funnel competitors.

Surfside’s Michael Blanche built a platform specifically for smaller retailers by giving them access to the same measurement and attribution tools that enterprise retail media networks use. For crypto and web3 operators running with mid-size budgets, the equivalent infrastructure — clean attribution, first-party data ownership, offsite audience extension — is accessible now through the right agency stack. The barrier is operational, not financial.

The Standardization Gap Is Where Budgets Get Wasted

WPP Media’s Jason Wescott chairs the IAB Europe Retail and Commerce Media Committee specifically to drive measurement standardization across a fragmented industry. CVS Media Exchange was the first health and wellness retail media network to implement clean-room integrations with partners like Pinterest for privacy-safe sales metrics. Albertsons’ Brian Monahan published the company’s entire iROAS research framework publicly to set a transparent measurement standard across the industry.

The pattern across the All-Stars list is consistent: the operators capturing disproportionate market share are the ones who defined their measurement frameworks first, then scaled spend against those frameworks. Operators who scale spend before defining measurement end up funding platform growth, not their own. A structured review of your current attribution setup — before the next campaign launches — is the highest-ROI action available to most performance marketing operators right now.

Originally reported by Adweek, June 2026.