The past few years have been a whirlwind for Nvidia (NASDAQ: NVDA) investors. The onset of the artificial intelligence (AI) revolution led to scorching demand for the graphics processing units (GPUs) that make AI possible.

Nvidia shares are surging in premarket trading Thursday as two of its key customers—Microsoft and Meta Platforms—posted strong results and committed to continuing their heavy AI spending.

Nvidia stock was rising Thursday after major customers Microsoft and Meta Platforms signaled they will continue to spend heavily on artificial-intelligence infrastructure. Nvidia shares were up 4.2% at $113.