U.S. markets opened mixed as Nasdaq and S&P 500 slipped on chip stock weakness, while Dow edged higher. Investors remained cautious ahead of key Big Tech earnings, with focus on whether AI-driven momentum can sustain. Semiconductor pressure and earnings uncertainty kept overall sentiment fragile at the open.

U.S. stock futures declined on Wednesday, as the Dow Jones, Nasdaq 100, and S&P 500 indices fell, following Tuesday's higher close.

U.S. markets opened mixed as Nasdaq and S&P 500 slipped on chip stock weakness, while Dow edged higher. Investors remained cautious ahead of key Big Tech earnings, with focus on…