These three small-cap AI stocks have a shot at generating millionaire-making gains over the next decade: SoundHound AI (NASDAQ: SOUN), Serve Robotics (NASDAQ: SERV), and Evolv Technologies (NASDAQ: EVLV). Image source: Getty Images.

A William Blair analyst cheers Nvidia’s moat and margins — while also weighing in positively on Broadcom and Arm shares.

Key Takeaways Nvidia shares have exploded this year, but William Blair analysts say there's still an upside opportunity.The firm believes Nvidia has a one- to two-year lead on its competitors in artificial intelligence.

These companies are getting a nice boost thanks to AI, a trend that's likely to continue thanks to their huge addressable markets.