SoftBank Group shares jumped roughly 16% in Tokyo trading. The catalyst: Nvidia’s latest earnings report, which painted a picture of AI demand that shows no signs of cooling off.

Why Nvidia’s numbers moved SoftBank’s stock

Nvidia reported triple-digit year-over-year revenue growth, driven overwhelmingly by its Data Center segment.

SoftBank isn’t just a passive observer of this trend. It’s deeply entangled in the AI hardware supply chain through its majority stake in Arm Holdings, the chip design firm whose architecture underpins everything from smartphones to data center processors. When Nvidia prints monster numbers, it validates the entire ecosystem that Arm sits inside.

Masayoshi Son has been on a public mission to reposition SoftBank as the world’s preeminent AI infrastructure company. The centerpiece of that ambition is a planned investment of more than $100 billion in next-generation AI data centers.