SoftBank Group CEO Masayoshi Son on Monday said he has agreed with OpenAI CEO Sam Altman to set up a joint venture in Japan ...

The deal, if it were to go through, would make the Japanese tech investment fund the largest outside stakeholder in OpenAI, overtaking Microsoft.

From left: Masayoshi Son, chairman and CEO of SoftBank; Larry Ellison, executive chairman of Oracle; and Sam Altman, CEO of OpenAI listen to President Trump speak at the White House on Jan.

Emily Bary is a MarketWatch news editor based in New York. Victor Reklaitis Victor Reklaitis is a Washington Correspondent for MarketWatch. During his time at MarketWatch, he also has served in ...

SoftBank shares surged — on five times the previous day’s volume — on Wednesday after the Japanese investment group landed a starring role in an U.S. artificial-intelligence infrastructure ...

Jan. 21, Trump announced a joint venture with Oracle Chairman Larry Ellison, SoftBank CEO Masayoshi Son and Altman called ...

While the presidential transition commanded headlines this week, equally significant shifts were occurring in AI technology. Just hours before Donald Trump’s inauguration, DeepSeek released its latest ...

The Stargate project outlines a commitment to spend $500 billion over the next four years to develop advanced AI ...

Stocks are approaching records in the first couple of days of Trump's presidency, with more pronounced moves in specific ...

Stargate is a joint venture between SoftBank, OpenAI and Oracle to create data centres. The same is expected to generate over ...

Masayoshi Son, the CEO of the Japanese multinational investment company SoftBank, has pledged a hefty investment deal with Donald Trump for the U.S. On December 16, 2024, the two jointly announced ...

United States President Donald Trump has announced a $500bn joint venture with Texas-based tech firm Oracle, Japan’s SoftBank ...