The U.S. stock market closed higher Thursday, with the S&P 500 booking yet another record peak. - Spencer Platt/Getty Images Sectors in the U.S. stock market just traded in a way that suggests investors are excessively confident and a pullback may be near — although that doesn’t necessarily spell the end of the S&P 500’s bull run, according to DataTrek Research. Correlations for five major S&P 500 sectors hit an unusually low level that since 2023 has been followed by a drop for the U.S. equities benchma ...