MercadoLibre Reveals Ecosystemic Users Drive Multiples of Profit as Credit Book Hits $16.4 Billion, Margins Stay Under Pressure
Q2 2026 earnings call, August 5, 2026
MercadoLibre used its second-quarter call less to recap results than to make a strategic argument to investors: the company's decision to sacrifice near-term margin for deeper user engagement is working, and the data now proves it. Net revenue crossed $10 billion for the first time, up 50% year-on-year, but operating margin fell to 6.7%, down 550 basis points from a year ago. Management's message was unambiguous. CFO Martin de los Santos framed the quarter as validation of a multiyear bet: "We are changing behavior and building habits we believe will drive this business' profitability for years to come."
The Ecosystemic User Reveal
The most significant new disclosure was the company's quantification of what it calls "ecosystemic users," those who actively use both the Marketplace and Mercado Pago rather than just one. According to de los Santos, these users generate 70% more GMV and 90% more total payment volume than single-platform users, along with double the assets under management, and are growing 37% year-on-year, the fastest-growing cohort on the platform. Critically, contribution profit per ecosystemic user is "multiples" of the combined profit from a Marketplace-only user and a Fintech-only user added together. This is the clearest articulation yet of why MercadoLibre keeps reinvesting margin into engagement rather than banking it, and it gives analysts a concrete framework for modeling the payoff from cross-sell rather than treating commerce and fintech as separate lines of business. CEO Ariel Szarfsztejn called this intersection of commerce and fintech at scale "a unique flywheel that is very difficult to replicate for any other player across the region."
One Year Into Brazil's Free Shipping Experiment
Management devoted unusual detail to the one-year anniversary of lowering the free shipping threshold in Brazil, treating it as a case study for the broader engagement thesis. Items per buyer in Brazil grew 19% year-on-year even as the company added large volumes of lower-spending new buyers, evidence, executives argued, of existing users going deeper rather than the base simply growing. Conversion rose 1.1 percentage points year-on-year, which de los Santos called "a step change" rather than an incremental gain, and one that "has proven sustainable for a full year." Items sold in Brazil are now growing 56%, roughly double the 26% pace before the change. Daily active users have grown faster than monthly actives every quarter since the shift, and new buyer cohorts acquired post-change are purchasing more, across more categories, with higher retention than prior cohorts. Szarfsztejn was explicit that the company will not chase these comps mechanically: "We are not optimizing for growth... we will just find whatever we think is needed in order to continue improving the value proposition for our consumers."
Credit Book Scaling Fast, Asset Quality Holding
MercadoLibre's credit portfolio reached $16.4 billion, up 75% year-on-year, with NIMAL (net interest margin after losses) improving from 18% in the first quarter to 21% in the second, driven by all three largest markets. The 15-to-90-day NPL ratio was 7.0% for the total portfolio and 4.6% for credit cards specifically, both near historical lows. Management pushed back on concerns about credit deterioration in Brazil, with fintech president Osvaldo Giménez stating flatly, "I confirm that so far, we are not seeing any deceleration or deterioration of credit book in Brazil." On the uptick in 90-day-plus NPLs that UBS analyst Kaio Prato flagged, Giménez attributed the move to portfolio mix and issuance pacing rather than underlying credit stress, while de los Santos added that faster-growing, shorter-duration products mechanically carry higher NPLs since "the good payers get out of the portfolio fairly quickly and the defaulters stay for 360 days."
Credit Card Still Investing Through Losses, But Strategically Justified
The credit card book, now above $7 billion, remains in investment mode, with NIMAL at negative 2.5% compared with near-breakeven a year ago, a deterioration executives attributed entirely to accelerated issuance rather than weaker unit economics. Brazil issued 2.6 million cards in the quarter versus 1.6 million a year ago, and Giménez said each cohort typically reaches NIMAL breakeven after 12 to 18 months. Mexico's card economics are already outperforming Brazil's. De los Santos reminded investors the card's value extends well beyond its own P&L line: cardholders are two to three times more likely to become ecosystemic users. Argentina's card, launched roughly three quarters ago, is seeing strong uptake with no surprises in early payment behavior, even as some local financial institutions flag credit-cycle concerns.
Margin Pressure: Mexico Device Costs and Brazil Take-Rate Cuts
Sequential margins held roughly flat versus the first quarter, but the composition shifted. Improved profitability in Brazil's consumer credit book, where provisions normalized after a first-quarter spike, was offset by margin compression in acquiring, primarily in Mexico, and by continued investment in commerce. Goldman Sachs analyst Irma Sgarz pressed management on whether the company could pass rising costs through to customers. De los Santos attributed Mexico's acquiring compression to two factors: chip-driven increases in point-of-sale device costs that are "there to stay," and a one-off inventory restocking charge tied to Mexico's rapid growth, since devices sold at a loss require upfront loss recognition. Giménez noted the company chose not to raise device prices because payback periods remain in line with expectations and competitors haven't raised prices either. Separately, Brazil take-rate cuts and PIX-linked consumer discounts, alongside rising logistics energy costs, added further drag, some of which MercadoLibre chose to absorb rather than pass to shoppers.
AI Spend Delivering Measurable Returns
MercadoLibre disclosed it spent approximately $80 million more on AI this quarter than a year earlier, but management provided unusually specific evidence of return. Customer service headcount has fallen from 10,000 to 7,000 representatives even as the business tripled in size, with 90% of interactions now handled without human involvement. Product development costs fell from 8.4% to 7.2% of revenue year-on-year despite absorbing AI costs, and de los Santos said human-written code is "now the exception" among the company's 20,000 developers. AI-enhanced search is lifting both marketplace conversion and advertising click-through rates, with the ad orchestrator tool's usage up 66% and advertising revenue growing 73% year-on-year. Szarfsztejn was careful to frame AI as strategic rather than merely a cost lever: "AI is accelerating the secular shift that we already are trying to capture... this is like a fuel that we are applying to an organization that is already wired into technology."
Mexico Growth Cooling on Tax Reform and World Cup, Cross-Border Scaling
Mexico commerce growth decelerated due to a previously flagged tax reform, a softer macro backdrop, and reduced consumption during the World Cup, which de los Santos said hit "a bit deeper in June and July." Even so, MercadoLibre said it gained share against both its main online competitor and traditional retailers. Cross-border trade continues to scale, growing GMV around 60% year-on-year with triple-digit growth in Brazil and Argentina; volume from the company's Chinese fulfillment center grew 170% quarter-over-quarter, and unit economics have improved sequentially for several consecutive quarters.