Stocks fell at the open on Monday as investor risk aversion was revived by concerns over Greece's debt crisis.
Energy shares also weighed as the price of crude fell more than 2 percent.
The Dow Jones industrial average <.DJI> dropped 35.82 points, or 0.33 percent, to 10,706.16. The Standard & Poor's 500 Index <.SPX> fell 5.63 points, or 0.49 percent, to 1,154.27. The Nasdaq Composite Index <.IXIC> lost 12.58 points, or 0.53 percent, to 2,361.83.
(Editing by Jeffrey Benkoe)