NEW YORK (Reuters) - U.S. stocks closed flat on Wednesday as concern about Greece and Ukraine was offset by gains in shares of Apple .
Based on the latest available data, the Dow Jones industrial average <.DJI> fell 7.77 points, or 0.04 percent, to 17,860.99, the S&P 500 <.SPX> lost 0.22 points, or 0.01 percent, to 2,068.37 and the Nasdaq Composite <.IXIC> added 13.54 points, or 0.28 percent, to 4,801.18.
(Reporting by Caroline Valetkevitch; Editing by Nick Zieminski)
