Dow Jones Top Markets Headlines at 3 PM ET: Dow Poised to Break Winning Streak | SpaceX ...

US stocks: Dow closes at record on Mideast optimism; SpaceX, AMD drag Nasdaq

Dow hits record on Iran peace hopes; Nasdaq retreats 0.85% as SpaceX and AMD fall on AI capex concerns. Investor skepticism signals that massive AI infrastructure spending must deliver clear ROI—critical amid slowing jobs and Fed rate uncertainty.