Wall Street Slips on AI Uncertainty; Oil Drops on US-Iran Deal Rumors

US equities closed lower as AI sector leaders called for a slowdown in advancement due to risks, pressuring semiconductor stocks, though software recovered. Oil prices fell on unconfirmed rumors of a US-Iran deal, which would increase supply. The market is reacting to sentiment shifts rather than hard data, with the AI narrative and geopolitical oil speculation driving intraday moves.