The major U.S. stock indexes moved in starkly opposite directions in early trading on Thursday, with the Dow moving sharply higher and the Nasdaq showing a significant pullback.While the Nasdaq climbed well off its worst levels of the day, the tech-heavy index still closed down 60 points or 0.3 percent at 23,594.Meanwhile, the S&P 500 rose 14 points or 0.2 percent to 6,901 and the Dow jumped 646 points or 1.3 percent to a new record closing high of 48,704.01.The surge by the Dow partly reflected a sharp in ...