MercadoLibre just reported its fastest revenue growth in four years — $10.17 billion in Q2 2026, up 50% year-over-year, beating the consensus estimate of $9.77 billion. Earnings per share came in at $9.19 versus the $8.69 estimate. The stock fell 7.3% on the report and is down roughly 23% over the past 12 months, sitting around $1,821, well below its 52-week high near $2,548.
The market isn't angry about the revenue or the EPS beat. It's angry about operating margins, which compressed to 6.7% from 13% a year ago. That 550-basis-point drop is the story Wall Street has reduced MELIMELI-- to. The problem is, the margin compression is intentional. Management has explicitly stated they're not optimizing for short-term margins. Two-thirds of the compression comes from bad-debt provisions on a credit book that grew 87% year-over-year to $16.4 billion. Provisions nearly doubled from $603 million in Q1 2025 to $1.24 billion in Q1 2026. That's the mechanical accounting consequence of issuing credit faster than the book matures, not a deterioration in borrower quality. NPLs (nonperforming loans) are near record lows at 7.0% overall and 4.6% for cards.
Here's the disconnect between the narrative and the math:
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1. The margin story is a function of credit book growth, not a business model problem.
MercadoLibre's fintech segment is growing the credit card portfolio at a rate that mechanically depresses margins — not because borrowers are defaulting, but because accounting rules require reserving for expected losses at issuance. Mature Brazilian card cohorts typically reach breakeven within 12 to 18 months. The faster you issue, the lower the average portfolio maturity, and the heavier the provisioning drag. This is a timing issue, not a quality issue. The 15-to-90-day NPL ratio is near historical lows. In a country with a history of complex credit cycles like Brazil, lowering NPLs while doubling the credit book is not a structural weakness — it's proof the underwriting engine works.
2. Logistics costs per shipment fell 17% despite a 56% surge in volume.
This is the operating leverage signal the market should be focusing on. Cost per shipment declined in local currency even as volume accelerated dramatically year-over-year in Brazil. The company is adding 14 new fulfillment centers in Brazil in 2026, roughly a 50% increase in infrastructure spending. That's growing pains from scaling the fulfillment network, not a structural cost problem. The lower free-shipping threshold, implemented a year ago, produced durable behavioral changes: items per buyer rose 19%, conversion improved by 1.1 percentage points, and daily active users are outgrowing monthly active users. These are the kind of engagement metrics that compound.
3. Free cash flow grew 68% while operating margins compressed.
Here's the number that matters most for the valuation argument: free cash flow over the trailing twelve months is $12.4 billion, up 68% year-over-year. The FCF margin sits at 37.2%. This tells you the margin compression is real on the income statement but hasn't translated into cash flow deterioration. The business is generating record cash while reinvesting heavily. ROE is 27.5%, ROIC is 13.8%. These are not the returns of a company whose business model is breaking. They're the returns of a company that's choosing to deploy cash into growth rather than distribute it.
4. AI search is already paying for itself.
AI-enhanced search is deployed across the five largest markets. Incremental commerce and ad revenues more than offset the cost of third-party AI models. That's a rare outcome for an AI investment in 2026 — most companies are still spending on AI infrastructure without a clear revenue link. MercadoLibre's AI investment is showing measurable returns on conversion, item sales, and advertising click-through rates.
5. The CEO transition happened during the sell-off, not the other way around.
Founder Marcos Galperin stepped back to Executive Chairman on January 1, 2026. Ariel Szarfsztejn, a company veteran since 2017, took over as CEO. The leadership change coincided with the period of intense investor scrutiny over capital allocation. That's relevant context: the market sometimes sells transitions before it understands continuity. Szarfsztejn and CFO Martin de los Santos have been running the playbook for years — the margin trade-off language coming out of the Q2 call tracks directly with Q1 and full-year FY2025 messaging.
AInvest's aggregate signal labels the stock a Buy, with a fundamental rating of 9.86. That's worth noting because AInvest's composite doesn't account for the temporary nature of the margin compression — if the aggregate model is buying MELI at these levels with a near-perfect fundamental score, the disconnect between the score and the price action is itself a data point.
The counterpoint. UBS downgraded MELI to Neutral, arguing margin pressure could persist through 2027. That's the real bear case: what if the provisioning cycle runs longer than management expects? What if credit quality doesn't hold as the book scales past $16.4 billion? The answer isn't certainty — it's that mature cohorts are already reaching breakeven on schedule and NPLs are declining, not rising. The break condition is straightforward: if NPLs spike above the current 7.0% level or Brazil's macro environment deteriorates sharply, the credit thesis needs rethinking. That's the risk, and it's not trivial. But it's different from saying the business model is broken.
Where the valuation sits. The stock trades at roughly 45 times forward earnings, which looks expensive until you put it next to the growth rate. Revenue is growing 50% year-over-year. The forward P/E is 93% below the stock's own 8-year average. On a price-to-sales basis, MELI trades at 2.6 times trailing revenue — less than 3x sales for a company growing revenue at 50% with 37% FCF margins. That's not the valuation of a company whose earnings power is deteriorating. It's the valuation of a company the market has temporarily mislabeled.
The EV/EBITDA multiple is roughly 25x on the trailing basis, but that multiple is depressed by the current margin trough. As credit cohorts mature and provisioning normalizes, EBITDA will expand without requiring further revenue acceleration. The operating leverage is already showing on the logistics side — costs per shipment declining as volume surges.
The path for the gap to close. Three conditions would force re-rating: margin stabilization as credit book maturation accelerates, continued revenue growth above 40-50%, and confirmation that the logistics investment is producing durable unit economics improvement. Q2 2026 already delivered on the first two. The margin stabilization timeline is the variable that matters most. Management declined to give a specific date, which is fair — credit book dynamics are harder to schedule than logistics costs. But the cohort data is the leading indicator, and it's pointing the right direction.
The stock may need to find a bottom before it re-rates fully. A battered name can take time to convince the broader market. But the forward math at these levels is already far more attractive than the panic narrative suggests. Trading below 3x revenue with 50% growth and record cash flow generation — that's a GARP setup, not a value trap.
The narrative is margin compression. The story is credit book scaling, logistics leverage, and cash flow growth that the compressed income statement doesn't capture. At roughly 2.6 times trailing sales and 45x forward earnings on a company growing revenue at 50% with declining unit shipping costs, the valuation doesn't reflect the execution trajectory. If credit quality holds — and current data says it is — this compression phase sets up a re-rating, not a capitulation.
