MercadoLibre's Credit Card Expansion Raises NIMAL Pressure, Confirming Margin Concerns

What happened

MercadoLibre's rapid credit card growth is intensifying pressure on Mercado Pago margins as provisioning and new-market expansion weigh on net interest margin after losses (NIMAL). The company's credit portfolio reached $14.6 billion in Q1’26, up 87% YoY, with cards now 46% of the book, while NIMAL fell to 17.8% from 22.7% a year earlier. Provisioning surged to $1.24 billion, more than doubling from $603 million in the prior year, and unused credit-card commitments jumped to $11.9 billion, signaling further risk building. Simultaneously, gross margin contracted to 43.7% from 46.7%, driven by lower free-shipping thresholds and higher shipping costs, compounding the profit squeeze. While funding flexibility via receivables sales (Q1 gain of $367 million) and an undrawn $800 million revolver provides some buffer, the core earnings engine is being tested by dual margin pressure from credit and logistics.

Implication

The rapid credit card expansion is pressuring NIMAL and provisioning, which, combined with shipping-driven gross margin compression, is eroding profitability faster than revenue growth can offset. The WAIT rating at $1,660 remains appropriate, as the stock discounts a return to margin stability that is increasingly uncertain. Key checkpoints for Q2’26 include NIMAL holding above 17.8%, gross margin stabilizing, and growth in unused credit commitments slowing. If these fail, the bear case of $1,250 becomes more likely, driven by structural margin reset and higher funding costs. On the upside, if NIMAL rebounds above 19% and shipping costs decelerate, the bull case of $2,050 is achievable, but this requires execution on debt distribution and logistics efficiency.

Thesis delta

The narrative is shifting from a broad investment-driven margin squeeze to credit-specific NIMAL pressure as the dominant risk factor. While logistics costs remain a drag, the credit portfolio's rapid growth and rising provisioning are now the primary earnings sensitivity. The market must now underwrite not just shipping cost stabilization, but also sustainable credit cohort performance and NIMAL recovery.