Tesla stock suffers double-digit drop on carmaker’s worst day in years

Elon Musk's EV company lost a quarter of its value after revealing weak profits and high spending on AI and robotics

Tesla's stock fell about 13.5% on Thursday in one of the biggest single-day market losses in the company's history.

Elon Musk's automaker has struggled throughout the year, losing about 27% of its market value as huge capital expenditures and weaker-than-expected profits worry investors.