Apple overtakes Nvidia to become the world's most valuable publicly traded company, two years after it lost the crown, closing at a $4.9T market cap on Monday (Kalley Huang/New York Times)

Apple has surpassed Nvidia to become the world's most valuable publicly traded company, achieving a $4.9T market cap on Monday. This milestone comes two years after Apple previously lost the top position. The shift occurred amidst increasing concerns regarding the costs associated with the artificial intelligence boom, allowing Apple to slip past the chipmaker Nvidia.