Wall Street opens flat after ADP; ISM services due

NEW YORK (Reuters) - U.S. stocks opened little changed on Wednesday after two days of sharp swings as investors shrugged off a softer-than-expected reading on the labor market and ahead of the release of the ISM services report.

The Dow Jones industrial average <.DJI> fell 27.51 points, or 0.17 percent, to 16,368.37, the S&P 500 <.SPX> lost 2.12 points, or 0.11 percent, to 1,871.79 and the Nasdaq Composite <.IXIC> dropped 0.362 points, or 0.01 percent, to 4,351.61.

(Reporting by Chuck Mikolajczak; Editing by Bernadette Baum)