That Alibaba success has often made it harder to see when Son has stayed too long at the table. When Son needed capital to launch his first Vision Fund in 2017, he didn’t hesitate to seek $45 billion from Saudi Arabia’s Public Investment Fund – long before taking Saudi money became acceptable in Silicon Valley.

Japanese technology giant SoftBank says it has sold its stake in Nvidia, raising $5.8 billion to pour into other investments.

But SoftBank isn't bailing on AI. Instead, it's selling the world's hottest AI stock so it can buy more AI. SoftBank has already put $7.5 billion into OpenAI, and plans on investing another $22.5 billion into the company soon.

Technology investor SoftBank Group reports second quarter earnings results on Tuesday in the midst of feverish investment in artificial intelligence that has sent its share price soaring.

Discover how Masayoshi Son sold his Nvidia shares too soon, missing out on a potential $250 billion fortune as Nvidia became the world's first company to surpass a $5 trillion market valuation.

SoftBank Group (SFTBY) explored a potential takeover of Marvell Technology (MRVL) earlier this year in what would have been the semiconductor industry's largest-ever acquisition, according to a Bloomberg report.