Amazon.com vs. MercadoLibre: A Look at Which E-Commerce Stock Is a Better Investment in 2026

A comparative analysis evaluating e-commerce giants Amazon.com and MercadoLibre highlights Amazon as the preferred investment choice in 2026, driven by its artificial intelligence integration and attractive valuation. In fiscal year 2025, Amazon recorded revenue of $716.9 billion, marking a 12.4% year-over-year increase, alongside net income of $77.7 billion and a net margin of 10.8%. Amazon Web Services continues to be the core growth engine, with Q2 revenue climbing 37% year-over-year to $42.2 billion as enterprise AI adoption accelerates. While MercadoLibre delivers rapid growth across Latin America, generating $28.9 billion in FY 2025 revenue (up 39.1%) and topping $10 billion in quarterly revenue for the first time in Q2, it trades at a premium forward price-to-earnings ratio of 51.1x. In contrast, Amazon trades at a more conservative forward P/E multiple of 21.6x despite massive scale and cloud dominance. Analysts anticipate Amazon's disciplined cost structure, robust balance sheet, and leadership in cloud computing will sustain competitive outperformance.