U.S. stocks were trimming gains after the Federal Reserve announced it would keep interest rates unchanged. The S&P 500 , which was up 0.7% before the announcement, was up 11 points, or 0.6%, to 2,077. The Dow Jones Industrial Average was yo 70 points, or 0.4%, to 17,648. The Nasdaq Composite advanced 31 points, or 0.6%, lower at 5,062.
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