MELI vs. SE: Which Global E-Commerce Offers Greater Upside Now?

MercadoLibre (MELI) saw its Q2 operating margin contract 210 bps due to competitive pressures, $117 million in FX losses, and deteriorating asset quality in its 91% growing fintech loan book. Conversely, Sea Limited (SE) exhibited stronger performance, with Shopee achieving profitable market leadership in Brazil and its fintech unit maintaining stable 1% non-performing loans amidst over 90% growth, supported by resilient gaming revenue. This operational divergence has seen SE's shares rally 72.4% YTD versus MELI's 41.9%, reflecting investor confidence in SE's disciplined, diversified model over MELI's increasing competitive and credit risks.

Analysis

A comparison of second-quarter 2025 results for MercadoLibre (MELI) and Sea Limited (SE) reveals a significant divergence in operational performance and outlook. MercadoLibre is facing substantial headwinds, evidenced by a 210 basis point contraction in its operating margin, driven by intensified competition from Shopee and TikTok in Brazil. The company's response—increasing marketing spend and subsidies—is pressuring profitability. Furthermore, its fintech division, Mercado Pago, expanded its credit portfolio by 91% year-over-year, but at the cost of deteriorating asset quality, a risk amplified by doubling FX losses to $117 million. This has led to a 16.6% downward revision in Q3 earnings estimates. In stark contrast, Sea Limited demonstrates a more disciplined and resilient model. Its e-commerce arm, Shopee, achieved profitable market leadership by order volume in Brazil, directly challenging MELI on its home turf. SE's fintech loan book grew over 90% while maintaining a stable non-performing loan ratio of just 1%. This disciplined growth is supported by its resilient gaming division, Garena, which saw bookings rise 23% and had its full-year growth guidance raised to over 30%. The market has rewarded this performance, with SE's stock rallying 72.4% year-to-date versus MELI's 41.9%, reflecting investor confidence in SE's diversified cash-generative model over MELI's increasingly risky growth strategy.

Key Decisions for Investors

• Given the diverging operational trends and analyst sentiment, investors may consider favoring Sea Limited over MercadoLibre, as SE's disciplined growth, diversified revenue, and superior execution in key battleground markets like Brazil present a more compelling risk-reward profile despite its higher valuation.
• For MercadoLibre, the key metrics to monitor are operating margins and the non-performing loan ratio within its Mercado Pago unit; further deterioration could justify reducing exposure, especially with Q3 earnings estimates already revised down 16.6%.
• Investors in Sea Limited should verify the sustainability of Shopee's profitability in Brazil and the continued strength of Garena's cash flows, as these factors underpin the company’s ability to fund growth and support its premium valuation.