SoftBank sells its entire stake in Nvidia for $5.83 billion. Is the AI bubble about to burst?

SoftBank just pulled off one of its boldest financial moves in years — selling every last share of Nvidia it owned for $5.83 billion. The timing couldn’t be more striking. Nvidia sits at the center of the AI boom, its chips powering everything from ChatGPT to the data centers driving the next wave of automation. Yet SoftBank is cashing out, and that’s raising eyebrows across Silicon Valley and Tokyo alike.

The Japanese investment giant, led by Masayoshi Son, said the sale was part of a broader “asset monetization” strategy. It wasn’t a vote of no confidence in Nvidia, the company insists, but a way to fund what Son now calls an “all in” bet on OpenAI — the company behind ChatGPT.

SoftBank disclosed in its earnings statement that it sold 32.1 million Nvidia shares in October, alongside a partial sale of its T-Mobile holdings for another $9.17 billion. Those funds, along with a margin loan tied to its stake in chip designer Arm, will help finance a staggering $22.5 billion investment in OpenAI and other AI ventures.

“The firm said in its earnings statement that it sold 32.1 million Nvidia shares in October. It also disclosed that it sold part of its T-Mobile stake for $9.17 billion,” CNBC reported.

Yoshimitsu Goto, SoftBank’s chief financial officer, said during an investor presentation that the sales were part of a plan to keep liquidity strong while still backing ambitious projects. “We want to provide a lot of investment opportunities for investors, while we can still maintain financial strength,” he told investors. “Through those options and tools, we make sure that we are ready for funding in a very safe manner.”

SoftBank Dumps $5.83B in Nvidia Shares: Early Warning for the AI Boom?

People close to the matter told CNBC that the Nvidia sale had nothing to do with concerns about AI valuations. Instead, the sources said it’s about building up cash for an unprecedented spending spree that includes OpenAI and even the planned acquisition of ABB’s robotics unit. Still, for a company that has long touted its vision for an AI-powered future, the move reads like a calculated gamble — cashing out of one boom to double down on another.

SoftBank knows Nvidia well. The Vision Fund was an early backer, building a $4 billion position in 2017 before exiting in 2019. Despite selling again, the company remains deeply intertwined with Nvidia’s technology. Many of SoftBank’s AI initiatives, including its $500 billion Stargate data center project in the U.S., depend heavily on Nvidia’s chips.

Analysts see the sale as less a retreat and more a realignment. Rolf Bulk of New Street Research said SoftBank needed at least $30.5 billion for its investments this quarter — more than it had invested in the previous two years combined. Morningstar’s Dan Baker agreed, saying the company is “using the money to invest in other AI-related companies” rather than turning bearish on Nvidia.

SoftBank’s second-quarter results help explain the confidence. Its Vision Fund posted a $19 billion gain, doubling company’s profits and signaling that Son’s aggressive AI strategy might be paying off. “The reason we were able to have this result is because of September last year, that was the first time we invested in OpenAI,” Goto said. He added that OpenAI’s latest valuation — now around $500 billion — ranks among the highest in the world.

SoftBank’s stake in OpenAI is set to jump from 4% to 11% following the new investment, and insiders say it could grow even further depending on future valuations. While the firm isn’t seeking control, it could raise its ownership to as much as 40% over time if the opportunity looks right.

Still, the bigger story isn’t about percentages — it’s about conviction. Masayoshi Son has staked SoftBank’s future on AI, turning the company into one of the largest private backers of the technology behind ChatGPT. Whether this move signals sharp timing or misplaced confidence will depend on whether OpenAI continues to soar — or whether the AI frenzy finally runs out of steam.

For now, one thing is clear: SoftBank just walked away from the biggest AI chip rally in history to chase what it believes comes next. If it’s wrong, this could be remembered as the moment the AI bubble finally started to deflate.