Semiconductor stocks drag S&P 500, Nasdaq lower: AlphaCheck

US equities finished the session with divergent momentum on Monday as semiconductor and tech names retreated, pressuring the broader market indexes while defensive positioning elsewhere offered some support. The S&P 500 and Nasdaq both declined amid the tech selloff, though the Dow Jones Industrial Average managed gains. Market participants were simultaneously weighing fresh signals from Treasury yields, renewed tariff concerns, and other macroeconomic crosscurrents that shaped the day's directional bias.

The move underscores the outsized influence semiconductor and technology shares continue to exert on major benchmarks, particularly the Nasdaq. With Treasury yields shifting and trade policy uncertainty persisting, investors face competing signals about near-term risk appetite.

• Tech and semiconductor declines drove losses in the S&P 500 and Nasdaq, while the Dow's strength highlighted rotation away from growth names.
• Treasury yield moves and tariff headlines were among factors investors digested alongside the sector weakness.
• Semiconductor-heavy indexes remain sensitive barometers of broader sentiment around growth and macroeconomic conditions.