Maplebear (CART.US) stock plunged over 12% as Q4 revenue and Q1 earnings guidance fell short of expectations.

Maplebear (CART.US), the parent company of Instacart, an American food delivery service, saw its stock price drop 12.26% on Wednesday, its largest single-day decline ever, due to its poor Q4 performance and disappointing Q1 profit guidance.

According to the earnings report, Instacart's Q4 revenue grew 10% YoY to $883 million, but missed analysts' average expectation of $891 million. Under GAAP accounting standards, its net profit was $148 million, up $13 million YoY; its adjusted EBITDA was $252 million, up 27% YoY. The total transaction value (Gross transaction value), which measures the value of products sold, was $8.645 billion, up 10% YoY.

At the same time, the company expects its adjusted EBITDA in Q1 2025 to be between $220 million and $230 million, with a median forecast lower than analysts' average expectation of $237.1 million; it expects its total transaction value to be between $9 billion and $9.15 billion, lower than analysts' average expectation of $9 billion.

Data shows that Maplebear's stock price rose more than 76% last year and reached a record high of $53.15/share on February 19. However, since then, its stock price has fallen by more than 19%.