Microsoft’s backing since 2019 has been central to its rapid rise in generative AI, but now, as OpenAI negotiates to secure more control over its future, the talks have reportedly turned tense.

Stocks declined Tuesday and oil prices rose as Israel and Iran continued to exchange missile attacks and as hopes for a quick ...

A big T-Mobile investor sold a large block of stock. Shares of telecom leader T-Mobile US (NASDAQ: TMUS) sank as much as 4.6% ...