Nvidia on Wednesday briefly hit $4 trillion in market value, making it the first publicly traded company to hit that milestone.

The A.I. chip maker reached the landmark before Apple and Microsoft, as its value rose more than tenfold after ChatGPT’s release in late 2022.

Here's why Nvidia will likely become the first company to surpass $4 trillion in market value, what Nvidia and Microsoft must do to continue rising in price, and whether either growth stock is a buy now.