By DAMIAN J. TROISE and ALEX VEIGA (AP) — A rout in technology companies pulled the Nasdaq down 3.5% Thursday, the biggest loss for the tech-heavy index since last October. The S&P 500 gave up 2.4% and the Dow Jones Industrial Average lost a more modest 1.8%, a day after the blue chip index set a record high. A steady march higher in Treasury yields has been drawing money out of the stock market and