Every online store sits on more value than its product catalog suggests. Traffic itself has become an asset. Retailers with sufficient traffic have begun treating their own platforms as media properties.
Brands pay to appear on a product page, a search result, or a checkout screen the retailer already owns.Â
A commerce media platform makes that possible by turning existing site traffic into sellable ad inventory, without building a separate media business from scratch. The numbers explain the rush.
Global retail media spend reached roughly $175 billion in 2025 and is forecast to reach nearly $197 billion by the end of 2026, according to WARC and WPP Media. That growth rate outpaces almost every other advertising channel tracked today.
Why Retailers Started Selling Their Own Ad SpaceÂ
The logic is straightforward once you see it. A retailer already has shoppers who are actively browsing with purchase intent, which advertisers spend a lot of money to achieve elsewhere.
Amazon proved the model at scale years ago. Its advertising business alone generated tens of billions in 2025. Smaller retailers noticed the same opportunity sitting on their own sites.Â
A customer who is on the site of a mid-size retailer and is looking to buy running shoes has a higher purchase intent than a customer scrolling through social media.
It is that disconnect between intention and attention that commerce media capitalizes on.
Retail Media Versus Commerce MediaÂ
The two terms get used loosely. However, they describe different scopes. A retail media network sells inventory inside one retailer’s own ecosystem, like Amazon Ads or Walmart Connect.
A commerce media platform is usually more expansive. It is able to consolidate inventory and shopper information among multiple partners, occasionally with loyalty programs or fintech information in addition to retail traffic.
What This Actually Looks Like on a Retail SiteÂ
The most visible one is sponsored product listings. A brand will pay to be ranked higher in search results, just like search ads on Google. Beyond listings, retailers increasingly sell:
- Banner placements on category and homepage sections
- Sponsored spots within email newsletters sent to existing customers
- Off-site campaigns using the retailer’s own shopper data on external platforms
The latter type is more important than it may seem. First-party purchase data of a retailer is truly useful in targeting.
This is particularly true because third-party cookies are becoming less dependable in the wider ad market.
Why This Matters More as Margins TightenÂ
E-commerce product margins have been strained over the years. Shipping expenses, external advertising expenses, and the ever-present price competition all push that figure down.
Advertising revenue offers a different kind of margin entirely. Onsite ad inventory typically runs 70 to 90 percent gross margin, according to BCG, since the retailer already owns the surface being sold.
Offsite campaigns, where the retailer buys outside inventory, usually land closer to 20 to 40 percent.Â
The majority of retailers continue to make a small percentage of what they can. The industry standards place the average at 0.5 percent of gross merchandise value converted to ad revenue, and the most successful operators are multiple times higher.
Where Smaller Retailers Actually Fit InÂ
It used to take Amazon-scale to construct this type of ad infrastructure. That has changed. Commerce media platforms have now enabled mid-size retailers to integrate into existing ad-serving technology rather than developing it in-house.
The majority of retailers do not open all formats simultaneously. One onsite format, typically sponsored product listings, is a typical entry point, with a single offsite channel added when volume warrants it.
What Advertisers Get in ReturnÂ
Brands buying this inventory are not just paying for visibility. They are paying to be close to a real purchase decision, as well as access to first-party information that the retailer already possesses.
Advertisers also have a measurement advantage. Retail media provides closed-loop reporting, where an ad impression can be directly linked to a real sale on the same platform. It is more difficult to say that on the open web.
Attribution is usually based on modeling. Retail media is becoming a complement to programmatic spend as advertisers target shoppers at various stages through each channel.
The Trade-Offs Worth KnowingÂ
None of this comes free of friction. Retailers are in a balancing act between making money off their site and overloading the shopping experience that customers went to.
Excessive sponsored placements push the relevant organic products down the page and undermine trust in search results.
Retailers who push too far on ad revenue risk ruining the shopping experience that created their traffic in the first place.
The retailers that are successful in this regard limit sponsored inventory and make it easily identifiable as such, as opposed to organic results. And there is a data question to consider.
Advertising with shopper data, particularly off-site, brings up privacy concerns that are region-specific and still developing.Â
Where This Is Headed
Retail media is on track to overtake combined linear and connected TV ad spend globally in 2026, according to WARC.
As more mid-size retailers adopt the model, competition among the vendors serving this segment keeps pushing entry costs down further.
For a growing e-commerce brand with steady traffic and repeat customers, this represents a genuine second revenue line.
It will not replace product revenue, and it is not the right fit for every retailer’s scale. But for brands with an audience worth monetizing beyond a single transaction, it is becoming harder to ignore.
