Why did SoftBank sell off its Nvidia stake?

On Tuesday, SoftBank, the Japanese financial giant, announced plans to dump all 32 million of its shares in Nvidia, the AI ​​chip maker. The news won’t be the needle that pops the AI ​​bubble, but it did cause enough of a stir to make Nvidia’s shares drop 2% Tuesday morning.

The bad vibes were muted somewhat by news of what SoftBank says it will do with the proceeds of the sell-off, along with those from the sale of some of its $9.17 billion T-Mobile stake: The firm will double down on another big bet in the AI ​​space—OpenAI.

SoftBank expects to invest $30 billion directly in OpenAI this year, according to its second-quarter financial statement in September. And it had already committed $19 billion to the $500 billion Project Stargate infrastructure initiative (with OpenAI and Oracle).

To bankroll these commitments, Masayoshi Son, SoftBank’s CEO, likely needed to free up funds. Hence the Nvidia sell-off.

For years, Son has talked about SoftBank’s strategy to invest in the “computing platforms of the future,” including artificial intelligence. His firm amassed a reported $4 billion stake in Nvidia back in 2017, only to dump the shares in 2019.

At the time Son had called Nvidia the “core company of the AI ​​revolution.” He now believes that OpenAI will be that core company.

During SoftBank’s annual general meeting in June, Son declared he is “all in” on OpenAI. He’d always wanted to be an early major investor in the AI ​​super-startup, he said, but Microsoft beat him to the punch. OpenAI, he predicted, will one day go public and eventually “become the most valuable company in the world.”

Nvidia reported $46.7 billion in revenue during its July-ending quarter (and crossed $4 trillion in market cap), while OpenAI doesn’t expect to turn a profit until 2029.

But by divesting of Nvidia and doubling down on OpenAI, Son can play a more active role in the platform’s expansion via initiatives like the Stargate Project, which will finance a major buildout of AI infrastructure.

SoftBank is still indirectly entangled in Nvidia’s fortunes, which also rest on the broad expansion of AI. The entire stock market is being propped up by confidence in Big Tech companies that are investing huge amounts in AI. Investors are placing a lot of faith in the idea that generative AI, a mostly unproven technology, will create valuable new efficiencies for businesses in the coming years.

Compounding the concern is the fact that a relatively small group of wealthy companies—SoftBank, Nvidia, and OpenAI—are investing. in each otherwhich has fed fears that they’re involved in a sort of self-inflating bubble.

It’s unclear if or when that bubble will pop. For now, Son has made his preference clear: Software over hardware, a bet that feels like a big vote of confidence for AI.