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

Choosing between a global titan and a regional powerhouse can define a portfolio. Amazon.com (NASDAQ:AMZN) and MercadoLibre (NASDAQ:MELI) represent two different paths to e-commerce success.

Amazon serves as the ultimate everything store with a massive cloud infrastructure business. MercadoLibre dominates the Latin American market by blending digital retail with a robust payments ecosystem. Both companies are often compared because they utilize logistics and financial services to lock customers into their platforms.

The case for Amazon.com

Amazon operates as a global leader among retail stocks, using its massive fulfillment network to serve hundreds of millions of unique products. The company generates revenue from its core e-commerce site, third-party seller services, and a high-margin advertising business. Its technology division, Amazon Web Services (AWS), provides cloud computing for enterprises and developers, serving as a significant driver of overall profitability.

In its latest annual report, filed for the 2025 fiscal year (FY), revenue reached $716.9 billion, representing a growth rate of 12.4% compared to the previous year. This expansion was accompanied by net income of $77.7 billion, resulting in a net margin of 10.8%. The increase in net margin suggests that the company is effectively balancing its heavy investments in artificial intelligence with operational discipline.

As of its December 2025 balance sheet, the debt-to-equity ratio was 0.4x. The debt-to-equity ratio, which compares total debt to shareholder equity, suggests the company maintains a conservative leverage profile. The current ratio stands at 1.1x, indicating its ability to cover short-term obligations, while free cash flow, calculated as cash flow from operations minus capital expenditures, reached $7.7 billion for the fiscal year.

The case for MercadoLibre

MercadoLibre serves a broad user base across Latin America, consisting of buyers and sellers on its marketplace and users of its fintech platform, Mercado Pago. The company has built a comprehensive ecosystem that includes logistics through Mercado Envios and advertising via Mercado Ads. By providing financial services to underbanked populations, it has created a competitive advantage that is difficult for international rivals to replicate.

In FY 2025, revenue reached $28.9 billion, which represents a significant growth rate of 39.1%. The company reported net income of $2 billion for the same period, with a net margin of 6.9%. While the company has faced currency volatility in its primary markets, its ability to maintain strong top-line growth indicates resilient consumer demand for its integrated services.

As of its December 2025 balance sheet, the debt-to-equity ratio was 1.7x. Since this ratio measures total debt against shareholder equity, a higher number suggests a greater reliance on borrowed capital. The current ratio stands at 1.2x, while free cash flow reached $10.8 billion for the fiscal year ended in December.

Risk profile comparison

Amazon faces intense competition across retail and cloud industries from well-funded rivals. Regulatory scrutiny remains a major concern, as the company deals with investigations regarding its marketplace operations and labor practices. Additionally, the business carries risks related to its complex fulfillment network and ongoing patent litigation involving smart home and connectivity technology, which could lead to significant legal costs.

MercadoLibre faces intense competition in its core markets from both local players and new international entrants. The company relies on third-party mobile platforms like Apple (NASDAQ:AAPL) for app distribution and payment processing. Other risks include economic instability in emerging markets, regulatory changes in the fintech sector, and the unpredictable nature of generative artificial intelligence outputs as the company integrates new technologies.

Valuation comparison

Amazon appears to be the more conservative play based on its lower earnings multiple, while MercadoLibre offers a lower price-to-sales multiple.

Valuation metrics sourced from Financial Modeling Prep (FMP) and may differ from other data providers.

Which stock would I buy in 2026?

A comparison between Amazon and MercadoLibre makes sense given they are both e-commerce powerhouses. Choosing between them depends on whether you want exposure to high-growth regional dominance or large-cap global stability and cloud diversification. My choice would be Amazon.

That said, now is a good time to invest in MercadoLibre. This year, the company enacted a deliberate compression of margins to pursue new long-term growth opportunities such as artificial intelligence. This margin decline caused a stock sell-off, resulting in a share price drop. Wall Street overreacted, given MercadoLibre continues to achieve spectacular sales growth in 2026. It achieved $10 billion in revenue for the first time in the second quarter, representing outstanding 50% year-over-year growth.

Amazon's Q2 sales rose a solid 20% year over year to $200.6 billion. But what makes the retailer a superior choice over MercadoLibre is its investments in artificial intelligence.

The company's AWS division is the world's leading cloud computing provider, making its AI offerings a natural extension of its cloud solutions. This helped AWS revenue to jump 37% year-over-year to $42.2 billion. As AI adoption continues across industries, Amazon is poised to experience further AWS growth, adding to its strong e-commerce business. And at a lower share price valuation than MercadoLibre based on the forward P/E ratio, now looks like a good time to buy.

Robert Izquierdo has positions in Amazon and Apple. The Motley Fool has positions in and recommends Amazon, Apple, and MercadoLibre. The Motley Fool has a disclosure policy.