The S&P 500 and the Nasdaq opened at record highs on Thursday, as blockbuster earnings from Meta and Microsoft signaled Big Tech's hefty artificial intelligence bets were paying off. The Dow Jones Industrial Average rose 204.

Nvidia’s (NASDAQ:NVDA) ascent to a $4.3 trillion market capitalization has cemented its status as a titan in the tech world and the world’s most valuable company, driven by its unrivaled dominance in artificial intelligence (AI) chip production.

And with Microsoft shares up by 9% and Meta gaining 11% before the open, the S&P 500 would have a hard time being anything but up today. In fact, that index is gaining nearly 1% in premarket futures trading. The Nasdaq, of which both Microsoft and Meta are also members, is up more than 1%.