US stocks today: Chip stocks lift Nasdaq, S&P to record closing highs; hot inflation kills rate-cut hopes

US stocks advanced with the S&P 500 and Nasdaq hitting record closing highs as AI-linked tech and chip stocks powered gains despite hotter inflation data. Producer prices surged, reinforcing expectations of prolonged Fed tightening. Markets also tracked Trump-Xi talks and rising geopolitical risks, while Morgan Stanley lifted its S&P target.