On Monday, the S&P 500 and the Nasdaq closed at record highs after OpenAI and Advanced Micro Devices reached a mega-deal that ignited a rally, despite the U.S. government shutdown entering its second week. Photo by John Angelillo/UPI | License PhotoOct. 6 (UPI) -- The S&P 500 and the Nasdaq closed at record highs Monday after ChatGPT-maker OpenAI and Advanced Micro Devices reached a mega-deal that ignited a rally, despite the U.S. government shutdown entering its second week.Chipmaker AMD shares closed 23.7 ...

Sam Altman, chief executive officer of OpenAI, left, and Lisa Su, chair and chief executive officer of Advanced Micro Devices, arrive for a Senate Commerce, Science, and Transportation Committee hearing in Washington, DC, US, on Thursday, May 8, 2025.OpenAI and Advanced Micro Devices have reached a deal that could see Sam Altman's company take a 10% stake in the chipmaker. AMD stock skyrocketed more than 25% Monday during premarket trading following the news.OpenAI will deploy 6 gigawatts of AMD's Instinct ...