Is MercadoLibre's Rapid Loan Growth Becoming a Profitability Headwind?

MercadoLibre's (MELI) aggressive credit expansion, with its Q2 2025 portfolio surging 91% to $9.3 billion, is significantly pressuring profitability, as evidenced by a narrowed Net Interest Margin After Losses (NIMAL) of 23% and a 57% increase in provisions for doubtful accounts to $690 million. This rapid growth, particularly in lower-margin credit cards, contributed to a 1.6% net income decline to $523 million, suggesting that continued lending growth, especially amidst volatile Latin American markets and uneven asset quality (18.5% overdue >90 days), will likely remain a headwind to earnings rather than a lever for expansion, contrasting with more disciplined regional competitors.

Analysis

MercadoLibre's aggressive credit expansion strategy is creating a significant drag on profitability, despite the stock's strong year-to-date performance. In Q2 2025, the total credit portfolio surged 91% year-over-year to $9.3 billion, but this growth came at a steep cost, as the Net Interest Margin After Losses (NIMAL) contracted sharply to 23% from 31.1% a year prior. This margin compression is exacerbated by a strategic pivot towards lower-margin credit cards, which grew 118% to represent 43% of the portfolio and have only just reached breakeven. Rising credit risk is evident in the 57% YoY climb in provisions for doubtful accounts to $690 million, and while short-term delinquencies have improved, the persistently high 18.5% rate for loans overdue more than 90 days signals underlying stress in the portfolio. Consequently, net income declined 1.6% to $523 million, as escalating credit costs offset gains in commerce and payments. This strategy contrasts with the more measured approach of competitor Nu Holdings, and when combined with regional economic uncertainty in Argentina and Brazil, suggests MELI's lending growth is a headwind to earnings, a fact not currently reflected in its premium valuation of 3.8x forward P/S ratio compared to the industry's 2.26x.

Key Decisions for Investors

• Investors should critically evaluate the disconnect between MELI's 46.5% YTD stock appreciation and its deteriorating credit-driven profitability, as the current valuation premium may not be sustainable if margin compression continues.
• It is crucial to monitor asset quality metrics in subsequent earnings reports, particularly the >90 day delinquency rate (currently 18.5%) and provisions for doubtful accounts, as any further deterioration will directly signal increasing pressure on net income.
• Consider the relative risk-reward profile compared to regional peers like Nu Holdings, which demonstrates a more disciplined credit strategy, as MELI's aggressive pursuit of market share appears to be sacrificing near-term profitability and increasing exposure to volatile markets.
• Factor in the heightened macro-political risks from key markets like Argentina and Brazil, which could amplify underwriting challenges and lead to negative earnings revisions despite the consensus estimate for 17.88% growth in 2025.