S&P 500 futures fall as Brexit vote count shows tight race

U.S. stock index futures fell in after-hours trading on Thursday after vote counts showed a tight race in Britain's referendum over whether to stay in the European Union. S&P E-mini futures fell 0.15 percent after the vote count in the northeastern city of Sunderland showed a stronger-than-expected vote in favour of taking Britain out of the European Union. Earlier on Thursday, U.S. investors bet the United Kingdom would remain part of the European Union, potentially avoiding damage to Europ