Apple reclaims world's most valuable company title as Nvidia slips amid AI investment concerns

Apple has reclaimed the position of the world's most valuable company, surpassing Nvidia amid rising concerns. Both companies have seen their stock prices decline, with Apple falling 1.2 percent and Nvidia 4.2 percent. Significant investments in artificial intelligence by major firms have raised questions regarding long-term sustainability. Apple's limited capital expenditure on AI compared to rivals has attracted investor interest and boosted free cash flow projections.