APPLE-OPENAI PARTNERSHIP FRAYS, SETTING UP POSSIBLE LEGAL FIGHT OPENAI WORKS WITH LAW FIRM TO PREPARE ACTIONS AGAINST APPLE APPLE-OPENAI DEAL WOVE CHATGPT INTO IPHONE MAKER’S SOFTWARE APPLE DEAL FAILED TO MEET OPENAI’S FINANCIAL EXPECTATIONS

Nvidia shares rose as much as 4.7% Thursday, extending a seven-day rally to 20% and pushing the chipmaker’s market value toward $6 trillion, a level no company has previously reached. The surge added more than $900 billion in market capitalization as investors continued piling into AI-linked semiconductor stocks. The Philadelphia Semiconductor Index has climbed nearly 70% since late March, with gains also seen in Intel, Micron Technology, Advanced Micro Devices and Broadcom. AI chipmaker Cerebras Systems also surged in its IPO debut Thursday.

FED'S MIRAN SUBMITS RESIGNATION FROM FED BOARD EFFECTIVE ON OR SHORTLY BEFORE KEVIN WARSH'S SWEARING IN AS CHAIR