US stocks rose on Monday as the federal government shutdown entered another week, while a megadeal between AMD (AMD) and OpenAI (OPAI.PVT) lifted hopes for the AI trade. The Nasdaq Composite (^IXIC) led the way higher, rising 0.5% amid a near-35% surge from AMD. The S&P 500 (^GSPC) ticked 0.3% higher, while the Dow Jones Industrial Average rose 0.1%. In another jolt to the AI outlook, AMD (AMD) said Monday it has signed a multiyear deal with OpenAI (OPAI.PVT) to supply chips that will bring in tens of b ...