Mercado Ads and Netflix: The Retail Media Pivot in LATAM CTV

The Convergence of Signal and Screen

For years, the critique of Connected TV (CTV) in Latin America has remained static: high engagement, poor attribution. While Netflix captured the eyeballs, the link between a 30-second spot and a checkout event remained tenuous. The newly announced alliance between Mercado Ads and Netflix Ads in Brazil and Mexico fundamentally alters this calculus. By piping Mercado Libre’s first-party retail data directly into the Netflix ad ecosystem, we are moving past the era of 'spray and pray' branding into a regime of precision performance.

This isn't just another inventory deal. It is a infrastructure play. Mercado Libre sits on the most robust transactional dataset in the region. Netflix owns the premium attention of the hardest-to-reach demographics. Merging these two signals solves the 'last mile' problem of OTT monetization.

Solving the Measurement Gap

In markets like Brazil and Mexico, advertisers have historically been hesitant to shift significant linear budgets to CTV due to fragmented measurement. The Mercado Ads partnership provides a closed-loop solution. Advertisers can now activate campaigns on Netflix’s ad-supported tier using real-world purchase intent from the region's largest e-commerce platform.

We are no longer targeting 'interests'; we are targeting 'behaviours.' If a user searches for high-end electronics on Mercado Libre, that signal can now trigger a specific premium placement on Netflix. More importantly, the partnership allows for tracking the impact of these ads all the way to the final transaction on the marketplace. This level of attribution is the holy grail for CMOs across LATAM who are under increasing pressure to justify every real and peso spent.

Regional Dominance and the Retail Media Moat

Mercado Libre’s move into the CTV space via Netflix is a defensive and offensive masterstroke. Retail media is currently the fastest-growing advertising vertical globally, and in Latin America, Mercado Ads is the undisputed incumbent. By becoming the data layer for Netflix, they cement their position as the essential partner for any brand looking to scale in the region.

For Netflix, the benefit is equally clear. Scaling an ad tier requires more than just content; it requires a sophisticated ad tech stack and data depth that local broadcasters struggle to match. By leaning on Mercado Libre’s proprietary data, Netflix can offer CPMs that reflect the true value of a conversion-ready audience, rather than just raw reach.

Implications for the Media Mix

Media planners must now rethink their 2025 allocations. This alliance signals that CTV is no longer just the 'top of the funnel.' With the integration of retail signals, the television screen becomes a performance channel. Agencies that fail to integrate retail media data into their video strategies will find themselves sidelined. The benchmark for success in Brazil and Mexico has just been raised: it’s no longer about how many people saw the ad, but how many people bought the product. This is the new standard for LATAM media strategy.