Futures for the Dow Jones Industrial Average DJIA, +0.40% plunged as Republican presidential nominee Donald Trump's lead widened in the presidential race against Democratic rival Hillary Clinton.

    Dow futures YMZ6 fell 750 points before modestly paring gains. They were down 728 points, or 4%, at 17,554 in recent trade. S&P 500 futures ESZ6 were down 97.25 points, or 4.6%, at 2,038. Meanwhile, the Nasdaq-100 futures were off 220 points, or 4.5%, at 4,584.