US stocks were mixed on Monday, with the Nasdaq Composite falling 1.1%, as hopes for US-Iran talks intertwined with AI spending concerns. Oil stocks weakened on hopes for US-Iran talks, but Wall Street stocks rebounded at the open. However, as the trading day progressed, tech stocks came under pressure, with the Nasdaq Composite falling 1.1%, the S&P 500 down 0.5%, and the Dow Jones Industrial Average up 0.4%. Market strategist Joseph Zidle noted that growing concerns about the midterm elections and AI spending exacerbated market unease.