Dow slips as S&P 500, Nasdaq hit records on AI stock rally

US stocks finished mixed on Tuesday, with the S&P 500 and Nasdaq Composite reaching fresh record highs as investor enthusiasm around artificial intelligence and semiconductor stocks offset ongoing geopolitical concerns tied to the conflict involving Iran. The S&P 500 rose 0.62% to close at a record high of 7,519.47, while the Nasdaq Composite gained 1.18% to finish at 26,655.89.