Strong data-center spending means higher sales for companies including Nvidia, AMD, and Broadcom that sell hardware products for their buildouts.

Investors continue to underestimate artificial intelligence (AI), the secular tailwinds behind the chipmaker's supercharged growth.

Nvidia briefly reached a market capitalization of $4 trillion on Wednesday, making it the first company in the world to reach the milestone and solidifying its position as one of Wall Street's most-favored stocks.