Nvidia, Meta stocks rise after expanded AI infrastructure pact; AMD sinks

US tech giants Nvidia and Meta Platforms saw their stocks rise significantly on Tuesday following the announcement of an expanded artificial intelligence infrastructure partnership, while competitor Advanced Micro Devices (AMD) shares declined amid the market reaction. The expanded pact between Nvidia, the leading graphics processing unit manufacturer, and Meta, the parent company of Facebook and Instagram, involves increased collaboration on developing next-generation AI infrastructure and data center solutions. This strategic alliance comes amid intensifying competition in the artificial intelligence hardware market, where companies are racing to secure dominance in the rapidly expanding AI sector. The market's positive response to the partnership reflects investor confidence in Nvidia's continued leadership in AI chip technology and Meta's strategic direction in building its own AI infrastructure rather than relying solely on third-party providers.