The newest financial giant in Latin America wasn’t built by a bank. It was built by a shopping site. Mercado Libre’s fintech arm, Mercado Pago, now has 78 million monthly active users and offers digital accounts, savings, lending, insurance, and credit cards. In 2025, it generated $12.6 billion in net revenue, up 46% from a year earlier. Mercado Libre’s commerce platform still supplies the scale, with more than 120 million annual unique buyers, but Mercado Pago is increasingly the engine of growth. Its advantage is one traditional banks lack: a long-running relationship with millions of merchants and consumers, plus the transaction data to underwrite them. CEO Ariel Szarfsztejn says the goal is to build the largest digital bank in Latin America. “Our vision is democratizing access to financial services in Latin America," says Szarfsztejn. In a region where many consumers and small businesses have long been underserved by traditional finance, Mercado Pago is making the case that the bank of the future doesn’t look like a bank at all.