MercadoLibre Plunged After Earnings. Here's Why I'm Not Selling.

MELI dropped 12% after its Q3 report, even as revenue surged 45% year over year to $10.75 billion. The sell-off traces to margin compression: operating margin fell to 6.3% from 9.8% a year earlier, a 3.5-percentage-point decline.

The source attributes the squeeze to three spending areas: expanded fulfillment capacity, free shipping, and marketing. Those are deliberate investments, not signs of demand weakness, given the 45% top-line growth.

The Motley Fool author stays bullish and holds the position. The argument is that margin pressure is temporary and strategic rather than evidence of fundamental deterioration. The author also points to the lending portfolio as a stabilizer, noting it remains healthy with credit quality stable.

Interpretation: the market priced the margin miss harder than the growth beat. A 12% drop on 45% growth suggests investors are questioning how long spending will outpace revenue, and whether the 6.3% margin is a trough or a new baseline. The source frames it as the former, but that is the author's view, not a confirmed outcome.