MercadoLibre (NASDAQ:MELI) delivered something it had never done before on August 5: quarterly revenue topped $10 billion. Net revenue and financial income jumped 50% year over year to $10.2 billion, the fastest pace of growth in four years and the 30th straight quarter above 30% growth. Yet the stock fell as much as 8% on August 6 before closing down 5%. When a company experiences rapid top-line growth while its stock declines, the underlying drivers are typically found within its financial details and profit margins.
Bull Case: A Flywheel That Keeps Spinning Faster
MercadoLibre’s growth is not slowing as it scales; it is accelerating. Gross merchandise volume climbed 36% year over year on an FX-neutral basis to roughly $22 billion, while total payment volume through Mercado Pago crossed $100 billion in a single quarter for the first time, up 56% year-over-year. Advertising revenue jumped 73% year over year in dollar terms, and assets under management on Mercado Pago grew 68% to $23 billion, evidence that users are trusting the platform with more of their financial lives, not just their shopping.
The company’s most telling number might be its smallest sounding one. Ecosystemic users, those active in both the marketplace and Mercado Pago, grew 37% year over year and generated 70% more GMV per user than shoppers who only use the marketplace. That is the flywheel management keeps pointing to, and it helps explain why MercadoLibre is choosing to sacrifice margin now. EPS of $9.19 beat Wall Street’s expectations, a sign the business is not falling apart even as margins compress.
Bear Case: Where All That Growth Is Going
The same quarter that broke revenue records also delivered MercadoLibre’s weakest profitability in years. Operating income fell from $825 million a year ago to $683 million, and operating margin narrowed from 12.2% to just 6.7%, the lowest in four years. Net income of $466 million carried a margin of 4.6%, which one Fool contributor called the worst net margin performance since late 2023. Two forces are driving that squeeze. MercadoLibre keeps a lowered free shipping threshold in Brazil in place to fend off foreign rivals offering cutthroat promotions, and it is issuing credit cards at a rapid clip, with 2.6 million issued in the quarter versus 1.6 million a year earlier.
That credit expansion carries real risk. The credit portfolio grew 75% year-over-year to more than $16 billion, and faster loan growth typically means more loans eventually go bad, pressuring near-term loss provisions. First-half 2026 revenue of $19 billion rose 50%, but first-half net income of $883 million actually fell 13% from a year earlier. The stock is down more than 20% over the past year, with one contributor pegging the drop closer to 29%.
What The Positioning Data Shows
Hedge fund ownership slipped from 113 funds to 102 funds, a modest pullback rather than a stampede out. Short interest sits at just 1.91% of float, showing little organized betting against the stock even after its decline. MercadoLibre trades at 35.34 times forward earnings, a multiple that still assumes real growth ahead despite the compressed margins. That combination, funds trimming lightly while short sellers stay largely on the sidelines, suggests skepticism here is measured rather than acute.
The Question Investors Still Have To Answer
MercadoLibre’s growth engine is not in doubt. What is in doubt is when, or whether, that growth starts converting into expanding profit again. For the bull case to play out, the ecosystem’s deepening engagement needs to eventually let MercadoLibre ease off free shipping and promotional spending in Brazil without losing share.
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