Nvidia, AMD, and Intel stocks rise on strong AI spending signals

Nvidia, AMD and Intel shares rose up to 2% in US premarket trading on Wednesday after stronger-than-expected updates from Super Micro Computer and SpaceX signaled robust artificial intelligence infrastructure spending. Intel later indicated gains above 3%, following last week's semiconductor selloff. Super Micro Computer raised its preliminary first-quarter revenue forecast to $18.5-19.5 billion from $14.5-15.5 billion, a midpoint upgrade of $4 billion or 26.7%, while also lifting expected gross margins to 12%-12.5%. SpaceX reported third-quarter revenue of about $14.6 billion, beating estimates, with AI contributing over half of sales. Meta reports earnings after Wednesday's close, with its capital expenditure outlook testing whether Big Tech can sustain massive AI investments. Microsoft, Alphabet, Amazon and Meta are expected to spend over $700 billion combined this year. Intel reports October 29 and AMD November 3, providing further demand tests.