U.S. stocks showed a split late Tuesday morning. The Dow hit another record high, up 354.56 points, or 0.69%, at 52,025.59. But some investors sold out of Big Tech, sending the S&P 500 down 14.16 points, or 0.19%, to 7,540.13. The Nasdaq Composite lost 109.15 points, or 0.41%, to 26,574.79. Losses were sharper in the Nasdaq 100, which dropped 0.91% as traders pulled back from the biggest growth and tech names.