US stocks today: Nasdaq ends lower as chip weakness offsets solid earnings, economic data

US markets ended lower with the Nasdaq falling 1.47% to 25,885.47, dragged down by weakness in semiconductor stocks despite TSMC posting a 77% jump in quarterly profit. The S&P 500 slipped 0.50% to 7,534.62 while the Dow edged down 0.21% to 52,549.51, cushioned by UnitedHealth's earnings beat. Chip-related stocks like SanDisk, Western Digital, Seagate, and Intel were among the biggest losers, highlighting elevated valuations and lofty expectations for the sector.