By Ryan and Vlastelica
NEW YORK (Reuters) - U.S. stocks opened flat on Wednesday with investors looking ahead to an impending monetary policy announcement by the Federal Reserve as it concludes a two-day meeting, although the central bank is not expected to make any major changes.
The Dow Jones industrial average fell 4.55 points, or 0.03 percent, to 16,803.94, the S&P 500 gained 0.1 point, or 0.01 percent, to 1,942.09 and the Nasdaq Composite added 3.55 points, or 0.08 percent, to 4,340.79.
(Editing by Bernadette Baum)