Shares in the technology company are down as investors grow anxious that its bet on artificial intelligence, and OpenAI in particular, may not pay off.
Investors are increasingly linking the futures of Oracle, led by Larry Ellison, center, and SoftBank, helmed by Masa Son, left, with OpenAI, Sam Altman’s A.I. giant.
Investors sent major global indexes higher on optimism that President Trump and China’s top leader, Xi Jinping, could reach a wider agreement this week.