Home Depot Inc , down 1.5 percent at $28.86, was the Dow's second-worst drag following a report that showed new home sales fell unexpectedly in November.
The U.S. dollar index <.DXY> was off 0.4 percent. A weaker dollar benefits exporters, which include technology companies and big manufacturers such as Caterpillar Inc . Shares of Caterpillar shot up nearly 1 percent.
The Dow Jones industrial average <.DJI> was off 5.67 points, or 0.05 percent, at 10,459.26. The Standard & Poor's 500 Index <.SPX> added 1.07 points, or 0.10 percent, to 1,119.09. The Nasdaq Composite Index <.IXIC> gained 10.87 points, or 0.48 percent, to 2,263.54.
(Reporting by Ellis Mnyandu; Editing by Jan Paschal)