Wall Street set to open higher; Dow closes in on 20,000

U.S. stocks looked set to open higher on Friday, with the three major indexes on track to post weekly gains and the Dow within spitting distance of 20,000, a level it has never breached. The Dow came within 50 points of hitting the historic mark on Thursday and is on track for its sixth weekly gains, a day after the Federal Reserve raised interest rates for the second time in nearly a decade. U.S. stocks have been on a tear since the Nov. 8 presidential election, with the S&P rising 5.7 perc