Shares of Jumia Technologies AG (JMIA) are plunging in pre-market trading on Tuesday after the e-commerce company reported disappointing third-quarter sales that missed analysts' expectations.

For the three months ended September 30, Jumia posted sales of $36.431 million, falling short of the consensus estimate of $36.841 million. The weaker-than-expected top-line performance seems to be weighing heavily on investor sentiment, with the stock down over 7% in pre-market action.

The sales miss raises concerns about Jumia's ability to drive growth and execute on its expansion plans amidst an uncertain macroeconomic environment. Investors will likely be closely watching the company's fourth-quarter results and forward guidance to assess whether the Q3 shortfall was an isolated event or part of a broader slowdown.