Palantir stock declines for a fourth consecutive day, Nvidia, the leading maker of AI chips, reports earnings later this week, and Alibaba plans to invest more than $52 billion on artificial intelligence over the next three years.

U.S. stocks were mixed on Monday afternoon. Investors are turning their attention to Nvidia’s upcoming earnings — the first time the AI chipmaker is reporting results since a breakthrough by Chinese AI startup DeepSeek sparked a selloff in Nvidia and other tech stocks last month.