Stocks jumped about 1 percent at the open on Tuesday as the euro rose against the dollar and commodities prices climbed on optimism that new aid for Greece was on the horizon.

The Dow Jones industrial average <.DJI> was up 126.47 points, or 1.02 percent, at 12,568.05. The Standard & Poor's 500 Index <.SPX> rose 13.57 points, or 1.02 percent, at 1,344.67. The Nasdaq Composite Index <.IXIC> put on 30.41 points, or 1.09 percent, at 2,827.27.

(Reporting by Edward Krudy)