In its IPO filing, Arm said the company “will be central” to the transition to AI.

But Son and Arm’s AI promises may overstate the company’s potential, at least somewhat. Arm-based chips have appeared in some gadgets beyond smartphones and tablets, such as servers that are less power-hungry. But Arm said it does not make AI chips and is not a direct competitor to Nvidia and others that make chips that are purpose-built for AI. Nvidia’s stock has exploded more than 200% this year.

Softbank tried to offload Arm to Nvidia for $40 billion, in what would have been the biggest chip deal of all time. But global antitrust regulators put a stop to it, and the deal fell apart in February 2022.

Arm did not list the number of shares it planned to sell, so a valuation wasn’t determinable yet. But Reuters reported Softbank is looking to basically double its investment from seven years ago with a $60 billion to $70 billion valuation for Arm when it IPOs, likely next month.


Softbank also this week bought the 25% stake in Arm that it did not own directly but that had been held by the Saudi Vision Fund, which Softbank manages. That purchase valued Arm at $64 billion, according to the Financial Times.