NEW YORK (Reuters) – U.S. stocks were little changed at the open on Thursday, with major indexes near record levels, as investors continued to digest ongoing uncertainty over Greece.

The Dow Jones industrial average <.DJI> fell 37.05 points, or 0.21 percent, to 17,992.8, the S&P 500 <.SPX> lost 3.14 points, or 0.15 percent, to 2,096.54 and the Nasdaq Composite <.IXIC> dropped 4.77 points, or 0.1 percent, to 4,901.59.

(Reporting by Chuck Mikolajczak; Editing by Bernadette Baum)