CoreWeave ( CRWV) is the Nvidia ( NVDA) -backed AI stock that’s been one of the biggest winners on Wall Street this year. What started as a crypto side hustle was the best-performing AI tech IPO of 2025, up four times since its March debut.

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.

Nvidia's latest gains reflect the U.S. stock market's return to the "AI trade" that fueled massive gains in chip stocks and related tech companies.