Last week, Latin American E-commerce and FinTech giant MercadoLibre released its second-quarter results, and it once again delivered absolutely stunning numbers, comfortably clearing the consensus and delivering significantly stronger growth than I anticipated. Somehow, this company just continues to defy the rule of large numbers, actually delivering the strongest growth in years.To me, with its Q2 results and commentary, MELI simply reaffirmed its status as one of the most promising businesses for the next two decades (as you’ll see by the end of this post).Yet, the market didn’t seem to agree with that view, with MELI shares selling off post-earnings and ending the week down another 5%. That now means that, despite doubling revenue, MELI shares are practically flat over the past two years, clearly remaining out of favor with investors.The reason? Primarily concerns over profitability, with margins hitting the lowest point since 2022, amid management executing an aggressive investment cycle to capture a larger share of the LatAm FinTech opportunity and grow its e-commerce dominance – management is simply sacrificing near-term profitability for long-term gain, as clearly communicated and anticipated. Meanwhile, MELI did beat the Q2 EPS consensus, and aggressive investments are already showing clear pay-off.In my opinion, the fixation on MELI’s quarterly GAAP margins is a masterclass in missing the forest for the trees. Complaining about compressed operating income while a company grows revenue 50% YoY, accelerates nearly every business metric, and nearly doubles its credit portfolio isn’t uncovering a problem, but describing what a land grab looks like on an income statement.When a company is sitting on this large of an underpenetrated, multi-decade opportunity, prioritizing today’s profits over investments to capture the opportunity at hand is the worst you can do.This short-sighted, misplaced focus on profitability is exactly where the opportunity sits for long-term-oriented investors.Clearly, there is plenty to discuss and delve into, so in today’s post, I want to break down MELI’s Q2 results and go over last quarter’s developments before updating my financial framework and view of the stock.Let’s go!This is a paid-exclusive analysis. Want full access? Consider upgrading to InvestInsights PRO for $9.50 a month or $95 a year! This gets you:6–8 Research Reports per month, 2x more than free subs do, including 3-4 Deep Dives and 2 mid-week analyses (that comes down to just $1 per analysis)Full visibility into my personal portfolio, including allocations, transactions, and conviction levelsAn overview of target prices and ratings, updated weeklyInvestInsights Premium is designed to help you find best-in-class compounders, identify deep-value opportunities, avoid costly mistakes, and stay focused on fundamentals when markets get noisy, with full transparency into how I make decisions over time.Subscribe nowFinancial & Performance ReviewDelving straight into the numbers and starting at the top, MercadoLibre delivered another mind-blowing quarter when it comes to top-line growth, with Q2 revenue coming in at $10.2 billion, surpassing the consensus by $410 million and reflecting YoY growth of 50%, which is also well ahead of my own expectations.This is another 1-point acceleration from Q1 and a fourth consecutive quarter where growth accelerates, hitting the highest level since Q4 2022 and marking the 30th consecutive quarter of 30%+ growth, which is pretty ludicrous considering the sheer size of this business. I mean, I can’t think of a business that has grown this strongly this consistently at this size.Moreover, MELI is delivering similar growth rates to the Covid years, when it fully benefited from an accelerating, pulled-forward shift to e-commerce and digital payments, and it’s doing it from nearly 3x the revenue base today – a $40+ billion revenue run rate.Impressively, its largest and most contested market – Brazil – is the primary growth driver. Q2 revenue in Brazil was up 59% YoY, the strongest growth in years, accelerating 4 points from Q1. Meanwhile, Mexico was up a similarly strong 55% YoY, a minor deceleration from 62% in Q1, and Argentina decelerated to 20%, down 2 points from Q1, still plagued by tough macro conditions.MELI simply continues to see improving momentum across the business, with strong user additions and very impressive growth in engagement across both e-commerce and FinTech operations, driven by consistent ecosystem expansion and platform improvement.This kind of growth – 30 consecutive quarters of 30%+ and accelerating – is a perfect illustration of the unique opportunity MELI sits on and dominates, holding either the #1 or #2 position in e-commerce and FinTech across every country where it operates. FinTech and e-commerce both remain significantly underpenetrated markets in LatAm, with digitalization still in its early innings. Latin America’s middle class is expanding, smartphone penetration is rising, and e-commerce penetration, digital payment adoption, and credit card ownership all remain deeply underdeveloped relative to more mature markets. Just take e-commerce penetration, which still sits at only just over 15% as of 2026, nowhere near the 30% in the U.S. So there is still loads of room to grow, users to add to the ecosystem, and engagement to grow as penetration improves.This company truly sits in a brilliant spot, and it’s allowing it to deliver unmatched growth, still surprising to the upside.Breaking down the Q2 performance by operating segment, let’s start with e-commerce. Q2 GMV (gross merchandise volume) came in at $21.9 billion, up 44% YoY, a further 2-point acceleration from Q1 and the strongest growth since late 2022, when MELI still benefited from COVID lockdowns.This was driven by 26% growth in unique buyers, in line with Q1 but growing well above 2025 levels, and items sold up 45% YoY, with items per buyer up 14% YoY and users purchasing across three or more categories up 6 points YoY to a new all-time high, amid strong improvement in engagement.In other words, growth is driven by accelerating momentum across both new user additions and engagement.Growth was led by Brazil, its largest e-commerce market by GMV, with GMV up 57% YoY, the strongest growth rate in years. One year ago, MELI lowered its free shipping threshold, which has significantly accelerated its e-commerce business and translated into strong market share gains, purely due to a more attractive value offering. For reference, items sold in Brazil accelerated to 56% in Q2, and conversion after the lowering has improved significantly, up 110 bps YoY in Q2. Also, daily active users are now growing significantly faster than monthly active users, and the percentage of customers buying across three or more categories per month is up 10 points YoY.Overall, the lower threshold has translated into a significant step up in engagement amid a structurally improved value offering, with items sold per user up 19% in Brazil on top of strong net additions, allowing MELI to keep outpacing the competition and gain structural market share.In addition to the successful reduction of shipping costs in Brazil last year, in April MELI introduced additional discounts for buyers in Brazil using PIX and lower take rates for selling in certain categories and ASP ranges for products with competitive pricing, in an effort to further raise the value offer of the platform. According to management, the initial results look good, with a meaningful improvement in the price competitiveness index and a sharp acceleration in active sellers, up 29% in Q2. Ultimately, “larger, more competitive seller base strengthens supply, and stronger supply is one of the clearest ways to support demand,” to quote management.I think that is spot on. Growing sellers and buyers create a more liquid platform that drives unmatched offering and pricing, compounding MELI’s existing e-commerce dominance.In other markets, MELI also performed very well, with Mexico GMV up 42% YoY, driven by 34% growth in items sold. In Argentina, GMV was up 13% YoY (an improvement from single-digit growth in recent quarters), driven by 22% growth in items sold, which is quite strong in a tough macro and reflects continued market share gains.As for specific e-commerce growth drivers, CBT (cross-border trade) continues to be a growth driver for MELI. CBT GMV was up 60% YoY in Q2, with strong growth in Mexico and triple-digit growth in Argentina and Brazil. Last year, MELI opened its first China fulfillment center, which is now used by thousands of sellers, with volume up 170% sequentially. It might only be a small percentage of total GMV today, but CBT is an important lever to expanding supply, further strengthening the marketplace.Ultimately, the accelerating GMV growth and healthy marketplace dynamics drove e-commerce revenue up 50% YoY, a 3-point acceleration from Q1 and the strongest growth in years. This also includes a growing contribution from advertising, with revenue up 62% YoY in Q2. MELI now holds a 10% market share in the rapidly growing LatAm digital advertising market, fully benefiting from its unmatched marketplace and user base, rich first-party data, and strong performance attribution.Moving on to FinTech, the performance was probably even stronger. Q2 TPV was $101 billion, up 56% YoY, a 6-point acceleration from Q1 and the strongest growth since Q4 2023. This was driven by remarkable growth across the portfolio.FinTech MAUs were up 30% YoY to 88 million, the strongest increase in over a year.Total transactions were up 44% YoY.AUM was up 68% YoY to $23.21 billion.The credit portfolio was up 75% YoY to $16.4 billion.Again, growing engagement is an important growth driver alongside strong new user additions. For one, AUM per user increased to $264, up 29% YoY. This reflects MELI winning share of wallet – instead of putting money in the bank, users are increasingly putting cash in their Mercado Pago account, increasingly using it as their primary financial home, which grows MELI’s potential revenue per user.Second, credit exposure per user in the consumer and credit card portfolio reached $231 and $446, up 34% and 20% YoY, respectively. This shows MELI is not just adding credit users but extending larger loans/credit lines to existing users over time, which is a sign of trust and seasoning in the book, not just aggressive new-customer acquisition. Additionally, a larger loan book per user, at the same risk profile, means more net interest income per user over time, so these are strong developments.The aggressive credit card expansion, in particular, is proving to be one of MELI’s most powerful long-term value drivers, extending well beyond net interest income. You see, users who hold the Mercado Pago credit card are 2-3x more likely to keep using both MELI’s financial products and its marketplace, so it’s kind of functioning as connective tissue that welds commerce and fintech together into a single, durable relationship.And these ecosystemic users, as MELI calls them, are incredibly valuable, with TPV per user almost 90% higher among ecosystemic users than fintech-only users, AUM per user more than twice as high, and insurtech policies per user almost 4x higher. Furthermore, ecosystemic users generated 70% more GMV and 55% more items sold per user in Q2’26, with the share purchasing three or more categories more than 15 points higher and daily app engagement meaningfully stronger.This is exactly why MELI is aggressively pushing on credit, significantly deepening the customer relationship and driving long-term ecosystem value.Ultimately, FinTech revenue was up 49% in Q2, driven by strong TPV growth and credit expansion, which is a 1-point deceleration from Q1, but mostly in line with the prior three quarters. The FinTech take rate compressed 20bps YoY, driven primarily by the move upmarket.Looking at NIMAL (NIMAL is essentially interest income earned on the credit portfolio minus loan losses as a percentage of the loan portfolio, so it’s a profitability measure of the loan book after credit losses), MELI reported a good 300 bps improvement sequentially, driven by a recovery in the Brazil consumer spread. At the same time, a Q2 NIMAL of 20.7% was still down 2 points YoY, which isn’t ideal but, crucially, it is mainly driven by a shift in mix toward the lower-spread credit card portfolio, which now accounts for 47% of credit, up from 43% last year.Credit card NIMAL in Q2 came in at -2.5%, down from breakeven in the same quarter last year, reflecting a step up in issuance, with 2.6 million new cards issued in Q2 compared to just 1.6 million last year, and these new cohorts are naturally dilutive. So, really, this isn’t a deterioration in asset quality, but just the dilutive impact of stronger growth in new cohorts, which is important to consider – the headline numbers don’t tell the full story.Meanwhile, other loans, which include consumer and merchant loans, do continue to show very good profitability, with a Q2 NIMAL of 40.6%, up 70 bps YoY. Yet, with MELI’s credit card push likely to only accelerate further, this NIMAL drag is likely to persist as the mix shifts further.At the same time, the 15-90 NPL of 4.6% was excellent in Q1, close to all-time lows, highlighting that MELI’s risk management is still excellent, even in this aggressive expansion phase. This is the first place where a deterioration in credit quality would show up, so it seems like MELI’s underwriting is actually improving, contrary to current concerns. MELI’s proprietary data (transaction history, AUM, marketplace behavior) is giving it a genuine underwriting edge over traditional lenders who don’t have that same visibility into borrower behavior, and it shows.The dynamic we are seeing here with NIMAL compressing and provisions booming (as we’ll see in a bit), but with the underlying delinquency data this clean, we are only seeing a function of upfront accounting treatment for a fast-growing, unseasoned book (provisioning ahead of losses that mostly haven’t materialized), not a sign of actual credit deterioration.Based on current data, credit concerns are clearly overblown – I can’t press it enough. If anything, delinquency trending down against rapid credit portfolio growth is perfect.Really, as a shareholder, I see very little to complain about so far, with the company comfortably outpacing my expectations amid brilliant underlying momentum in user growth and engagement.On that note, let’s move to the P&L.