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For years, digital advertising was dominated by technology giants such as Google and Meta. Brands spent billions of dollars on search ads, social media campaigns, influencer marketing, and display advertising to reach consumers online. However, a major shift is now changing the advertising industry, creating one of the biggest opportunities in modern commerce. Retail Media Networks (RMNs) are rapidly becoming one of the fastest growing segments in digital advertising.
What started as sponsored product placements on ecommerce websites has evolved into a powerful advertising ecosystem driven by consumer data, artificial intelligence, and shopping behavior.
Today, retailers such as Amazon, Walmart, Target, Kroger, Carrefour, and Instacart are not just selling products. They are becoming advertising and media companies.
According to GroupM estimates, global retail media advertising revenue is expected to reach nearly $153 billion by 2026. eMarketer also estimates that global retail media spending could rise to around $166 billion in 2025, compared to nearly $140 billion in 2024. Some forecasts suggest retail media could account for almost 25% of global digital advertising spending by the end of the decade.
Despite this rapid growth, retail media remains one of the least discussed transformations outside marketing and ecommerce circles.
A retail media network is an advertising platform owned by a retailer that allows brands to advertise directly on the retailer’s digital and physical platforms. These platforms can include ecommerce websites, mobile apps, loyalty programs, streaming TV platforms, in-store digital screens, and email marketing channels. Retail media advertising helps brands reach consumers while they are actively shopping or searching for products, making the advertisements far more effective than traditional digital ads.
For example, when a shopper searches for “protein bars” on Amazon and sees sponsored products at the top of the page, those are retail media advertisements. Similarly, when a grocery app promotes a beverage brand or sends personalized product recommendations, it is using retail media advertising. Unlike traditional advertising, retail media targets consumers at the exact moment they are planning to make a purchase, which often leads to higher conversion rates and stronger returns for advertisers.
Another major advantage of retail media is access to first-party customer data. The retailers know what consumers search for, what they purchase, how often they shop, which brands they prefer, and which promotions influence their buying decisions. As privacy regulations become stricter and third-party cookies disappear, first-party customer data has become one of the most valuable assets in digital advertising.
One of the biggest differences between retail media and traditional advertising is measurement accuracy. Traditional advertising channels such as television, newspapers, and billboards often struggle to directly connect advertisements with product sales. Brands may know how many people viewed an advertisement, but they cannot always measure how many consumers actually purchased the product afterward.
Retail media changes this completely by allowing retailers to track the entire customer journey, from ad impression and product click to shopping behavior and final purchase. This is known as closed-loop attribution, and it gives advertisers clear visibility into return on investment. For example, a food company can directly measure how many consumers purchased its cereal after seeing a sponsored advertisement on a grocery app. That level of transparency is extremely valuable for brands trying to improve marketing efficiency.
Retail media is also more effective because it targets consumers much closer to the point of purchase. A shopper searching for skincare products on an ecommerce platform already has strong buying intent, making the advertisement far more valuable than a broad awareness campaign. Another major difference is data quality. Traditional advertising often depends on estimated interests and browsing activity, while retail media uses actual purchase behavior and real shopping data, giving advertisers more accurate targeting and stronger results.
Several trends are driving the rapid growth of retail media networks.
First, privacy regulations and the decline of third-party cookies are making traditional digital advertising more difficult. The retailers operate inside closed ecosystems where consumers willingly share data through purchases and loyalty programs. This gives retailers access to highly valuable first-party customer data.
Second, ecommerce growth is creating massive advertising opportunities. Every product page, search result, checkout page, and app notification can become advertising space.The retailers also realized that retail media advertising businesses, where brands pay to promote products on ecommerce websites and apps, generate much higher profits than traditional retail sales. Retail margins are often between 2% and 5%, while retail media advertising margins can exceed 50%. This is why companies such as Amazon, Walmart, and Target are investing heavily in retail media networks.
Third, brands increasingly want measurable advertising results. Retail media allows companies to track the full customer journey from advertisement to purchase, helping brands understand which campaigns actually drive sales.
These factors are turning retail media into one of the fastest growing areas in global advertising.
One of the biggest ecommerce advertising trends today is the merging of commerce, entertainment, and advertising into one connected ecosystem.
The retailers are increasingly integrating advertisements across:
This allows brands to engage consumers throughout the shopping journey instead of targeting them at only one touchpoint.
For example, a consumer may see a grocery advertisement while watching streaming TV, later receive a personalized coupon through a retailer’s app, and finally encounter an in-store promotion while shopping.
Another important trend is AI-powered personalization. The retailers are increasingly using artificial intelligence to improve product recommendations, optimize ad placements, predict customer behavior, and automate campaigns.
As ecommerce evolves into a media ecosystem, retail media advertising is expected to grow even faster.
Amazon remains the global leader in retail media advertising. Its advertising business has become one of the world’s largest digital advertising platforms, competing directly with Google and Meta. Amazon’s advertising revenue reached around $62 billion in 2025, compared to more than $56 billion in 2024, showing the rapid growth of retail media.
However, nearly every retailer now wants a share of the retail media opportunity. Walmart generated approximately $6.4 billion in advertising revenue in 2025, with growth of around 46% year over year.
The number of retail media networks has also increased sharply in recent years. Industry estimates suggest there are now more than 200 retail media networks globally in 2025, compared to only a limited number dominated mainly by Amazon a few years ago.
The research also shows that around 38% of retailers and 71% of suppliers are now actively using retail media networks in 2025, highlighting how quickly adoption has expanded across the retail industry.
Walmart expanded Walmart Connect. Target strengthened Roundel. Kroger launched advertising platforms powered by loyalty card data. Instacart built advertising solutions for grocery brands. Even pharmacies, convenience stores, and food delivery companies are investing heavily in retail media.
The retailers now understand that they can monetize not only products but also consumer attention and shopping behavior.
Initially, retail media focused mainly on sponsored search ads inside ecommerce websites. Today, the model is evolving into a full omnichannel advertising ecosystem.
Retailers are now integrating advertisements across mobile apps, streaming TV platforms, Connected TV, social commerce, in-store digital screens, and offsite advertising networks.
This allows brands to follow consumers throughout the shopping journey instead of targeting them at only one moment.
For example, a customer might:
These experiences are increasingly connected through first-party customer data and AI-driven personalization.
Despite the excitement, retail media still faces several important challenges.
One major issue is fragmentation. Advertisers often need to manage campaigns across multiple retail platforms that use different systems and measurement standards.
Another challenge is ad saturation. As retailers increase the number of advertisements across their platforms, consumers may experience ad fatigue, reducing engagement over time.
Competition is also increasing rapidly. While many retailers are launching advertising platforms, only a limited number are likely to achieve large-scale profitability.
Retail media networks are transforming the global advertising industry.
What began as sponsored product placements on ecommerce websites has evolved into a massive advertising ecosystem powered by first-party data, artificial intelligence, and omnichannel consumer engagement.
As privacy regulations tighten and brands demand more measurable advertising performance, retail media advertising is becoming one of the most effective ways to reach consumers at the point of purchase. This is one of the key reasons why global retail media spending is expected to surpass $150 billion by 2026.
The rise of retail media also represents a major shift in power within digital advertising. Retailers are no longer simply merchants selling products. They are becoming media companies with highly profitable advertising businesses built on shopping behavior and customer data.
From Amazon and Walmart to grocery chains and delivery platforms, companies across the retail industry are racing to build their own retail media networks.
Retail media is no longer a niche concept understood only by marketers. It is becoming one of the most important transformations shaping the future of advertising, ecommerce, and digital consumer engagement.
If Retail Media Is a $150 Billion Opportunity, What’s the Next One?
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Aishwarya Dinesh operates at the intersection of Retail, E-commerce, and deep-tech innovation, leading research focused on disruptions shaping long-term value creation. A top-ranked global analyst known for high-conviction calls on companies like PepsiCo and Zalando, she evaluates how Generative AI, autonomous logistics, and tech-enabled supply chains influence intrinsic value and competitive moats across the consumer ecosystem. Her coverage spans leaders including Amazon, Walmart, Costco, Starbucks, Alibaba, and Lululemon, helping investors identify asymmetric opportunities and durable alpha.
A Retail Media Network (RMN) is an advertising platform owned by a retailer that allows brands to advertise on the retailer’s digital and physical platforms, such as ecommerce websites, mobile apps, loyalty programs, and in-store digital screens. RMNs help brands reach consumers while they are actively shopping, making advertisements more effective and measurable.
Retail Media Networks are growing rapidly because retailers have access to valuable first-party customer data, ecommerce platforms are creating new advertising opportunities, and brands increasingly want measurable advertising results. The decline of third-party cookies and growing privacy regulations are also pushing advertisers toward retail media platforms.
Retail media has become a major opportunity because advertising businesses generate much higher profit margins than traditional retail sales. Retail margins are often between 2% and 5%, while retail media advertising margins can exceed 50%. This allows retailers to generate additional high-margin revenue by monetizing customer attention and shopping behavior.
