Wall Street opens little changed in light trading

U.S. stocks fell on Thursday, weighed down by weakness in retailers as investors stepped back from a recent rally fueled by optimism that President-elect Donald Trump's policies will boost the economy. The decline pulled the Dow Jones Industrial Average further away from the 20,000 mark after it came very close to breaching the historic level this week. Following a sharp rally since the Nov. 8 U.S. election, the Dow is up about 14 percent for the year and the S&P 500 is 11 percent higher on