Latin America's Programmatic Advertising Surge: Who's Winning and Why

Latin America is the fastest-growing programmatic advertising market in the world. The numbers are clear: 31% year-over-year growth in 2025, with Brazil alone representing a market larger than all of Southeast Asia combined. International brands that treat LatAm as a single market characterized by slow adoption are making an expensive mistake. The market dynamics differ sharply from North America and Europe. Mobile-first penetration in Latin America exceeds 80% in most major markets, meaning that "mobile optimization" is not a secondary consideration but the primary one. Campaigns that are not designed for mobile-first consumption consistently underperform against region-specific benchmarks. The second differentiator is the dominance of video. Pre-roll and short-form video advertising in LatAm commands higher CPMs than display in every major market, including Brazil, Mexico, Colombia, and Argentina. The creative habits of US-origin campaigns—which often treat video as one execution among many—do not transfer. Video is the primary format, and quality matters disproportionately. Third, local inventory sources in LatAm have matured significantly. While early programmatic in the region was dominated by Google and Meta inventory, local DSPs and SSPs now offer access to premium local publisher inventory that Google and Meta cannot provide. Brazilian news publishers, Mexican sports media, and Argentine entertainment platforms offer audience quality that global platforms cannot match in their categories. The brands performing best in LatAm programmatic are those that have invested in local media teams or local agency partnerships rather than running global programmatic operations with regional targeting overlays. The latter approach is faster and cheaper to set up. The former approach produces measurably better results. The entry of Chinese brands—particularly in consumer electronics, fashion, and mobility—into LatAm markets has added competitive pressure that is reshaping CPM dynamics in several categories. Shein, TikTok's parent ByteDance, and several EV brands have been willing to pay premium CPMs to establish presence in markets they see as long-term strategic priorities. The inflationary effect on programmatic costs in fashion and electronics has been significant and is expected to persist.