What is Retail Media?
A practical guide for mid-market retailers, not another Amazon-scale playbook
Retail Media is advertising space sold by a retailer on their own digital properties, website, app, email, to brands that want to reach shoppers at the point of purchase. It's one of the fastest-growing digital ad channels: EMARKETER's H2 2025 forecast puts US Retail Media ad spending at $58.79 billion in 2025, rising to $69.33 billion in 2026. But most content about Retail Media focuses on Amazon, Walmart, and Instacart. This guide is for the rest of the market, mid-market retailers who want to understand whether Retail Media makes sense for their business.
How Retail Media works
At its core, Retail Media monetizes something retailers already have: high-intent traffic and first-party purchase data. Brands pay to get their products seen by shoppers who are already browsing, searching, and buying in their category.
The advertiser perspective
A pet food brand wants to reach people actively shopping for dog food. Google Ads targets people who searched for dog food yesterday. Facebook targets people who liked a dog page. Retail Media targets people who are on the dog food category page right now, with their credit card in hand. That proximity to purchase is what makes Retail Media valuable, placement and intent line up in a way upper-funnel ad channels can't match.
The retailer perspective
Retail Media creates a new high-margin revenue stream from existing traffic. Ecommerce gross margins are typically thin; Retail Media revenue is much closer to pure margin because the inventory (ad placements) costs almost nothing to create incrementally. The size of the program depends on traffic volume, category density, and how many of your suppliers are willing to spend, model it bottom-up from those, not from industry-wide averages.
The shopper perspective
Done well, Retail Media improves the shopping experience, relevant sponsored products help shoppers discover brands they wouldn't have found otherwise. Done poorly, it degrades the experience by pushing irrelevant paid products above organic results. The key is maintaining relevance controls: sponsored products should only appear when they're genuinely relevant to the shopper's query or browsing context.
Onsite vs offsite Retail Media
Onsite
Ads placed on the retailer's own website or app.
- • Sponsored products in search results
- • Display banners on category pages
- • Featured slots in recommendation carousels
- • Homepage takeover placements
- • Email newsletter sponsored sections
Higher conversion, simpler to implement, first step for most retailers
Offsite
Using retailer data to target ads on external channels.
- • Social media ads targeted by purchase behavior
- • Programmatic display using first-party data
- • Connected TV ads matched to shopping segments
- • Retargeting campaigns across the web
- • Lookalike audiences from customer data
Extended reach, requires data infrastructure, usually phase 2
Ad formats and their effectiveness
| Format | Best for | Pricing model |
|---|---|---|
| Sponsored product (search) | Conversion, product discovery, highest-intent placement | CPC |
| Display banner (category) | Brand awareness, new launches | CPM |
| Homepage hero | Brand campaigns, seasonal pushes | Flat fee or CPM |
| Recommendation carousel | Cross-sell, product sampling | CPC or hybrid |
| Email placement | High engagement, opted-in audience | CPM or flat fee |
CTRs vary widely by vertical, placement design, and the relevance of the matched product, the only reliable benchmark is your own program's data once it's live.
Retail Media for mid-market: what's different
Most Retail Media content describes enterprise-scale operations. Mid-market retailers face different constraints and have different advantages.
- • You don't need a sales team on day one. Enterprise Retail Media networks employ dedicated sales teams calling on brand advertisers. Mid-market retailers can start with a self-serve platform and grow into managed relationships as demand increases.
- • Your brands are already asking. If you carry third-party brands, suppliers are likely already asking about co-op marketing, featured placement, or "how do I get my product to show up first?" That's Retail Media demand, you're just not monetizing it yet.
- • Start with sponsored products in search. It's the highest-converting format, requires the least design work, and uses a CPC model that's risk-free for brands. Add display and email placements once you've proven the model.
- • Precision beats volume. A specialty retailer with focused category traffic can sell relevant brands a more qualified audience than a marketplace serving every category. Your advantage is category depth and purchase intent density.
The technology stack
A Retail Media program needs four technology layers, whether you build, buy, or combine.
- 1. Ad server. Decides which sponsored product or banner to show for each impression, based on bids, relevance, and targeting rules. This is the core engine.
- 2. Targeting and relevance. Ensures sponsored products are contextually relevant to the shopper's query or browsing context. Without this, Retail Media degrades the shopping experience and brands see poor ROI.
- 3. Measurement and attribution. Tracks impressions, clicks, and conversions attributed to sponsored placements. Brands need clear ROI reporting to justify continued spending.
- 4. Advertiser interface. A self-serve dashboard where brands create campaigns, set bids, and view performance. This is what makes the program scalable beyond manual sales relationships.
Frequently asked questions
What is Retail Media?
Retail Media is advertising space sold by a retailer on their own digital properties, website, app, email, and increasingly in-store screens, to brands that want to reach shoppers at or near the point of purchase. It turns a retailer's traffic and first-party data into an advertising revenue stream, while giving brands access to high-intent audiences that traditional ad networks can't match.
What is the difference between a Retail Media network and a Retail Media platform?
A Retail Media network (RMN) is the business operation, the team, processes, and relationships with advertisers. A Retail Media platform is the technology that powers it, the ad server, targeting engine, reporting dashboard, and self-serve interface. Amazon Advertising is both a network and a platform. Mid-market retailers typically buy a platform (technology) and build their own network (sales relationships).
How big is the Retail Media market?
US Retail Media ad spending is forecast to reach $58.79 billion in 2025, rising to $69.33 billion in 2026, according to EMARKETER's H2 2025 forecast. It's one of the fastest-growing digital advertising channels, driven by the deprecation of third-party cookies and the value of first-party purchase intent data. Amazon and Walmart together capture the vast majority of US Retail Media spend; mid-market retailers are launching their own programs to compete on category specificity rather than scale.
What is the difference between onsite and offsite Retail Media?
Onsite Retail Media places ads on the retailer's own website or app, sponsored product listings in search results, display banners on category pages, and featured placements in recommendation carousels. Offsite Retail Media uses the retailer's first-party data to target ads on external channels like social media, display networks, and connected TV. Onsite is simpler to implement and has higher conversion rates; offsite extends reach but requires more sophisticated data infrastructure.
Can mid-market retailers do Retail Media?
Yes. Retail Media becomes viable once you have enough recurring sessions for ad placements to deliver meaningful volume to advertisers, typically when traffic is in the hundreds of thousands of monthly sessions, though category density matters more than the absolute number. The economics differ from Amazon-scale networks: mid-market retailers compete on audience precision, not volume. A specialty retailer in a specific category can offer brands a more targeted audience than a marketplace serving every category. The value proposition is precision over volume.
What formats work best for Retail Media?
Sponsored product listings in search results are typically the highest-performing format, they look native, appear at the point of intent, and convert close to organic results when relevance is well-controlled. Display banners on category and homepage placements work best for brand awareness campaigns. Email placements (sponsored products in newsletter or triggered email recommendations) are the newest frontier, with strong engagement because the audience is already opted in.
Ready to explore Retail Media for your store?
Hello Retail's Retail Media platform lets mid-market retailers launch sponsored products and display campaigns with full pricing and relevance control.