Stocks rose at the open on Tuesday as investors welcomed talk that debt-burdened Greece could get help from the European Union, while broker comments lifted shares of industrial companies, including Dow component Caterpillar Inc .

The Dow Jones industrial average <.DJI> gained 101.43 points, or 1.02 percent, to 10,009.82. The Standard & Poor's 500 Index <.SPX> rose 11.76 points, or 1.11 percent, to 1,068.50. The Nasdaq Composite Index <.IXIC> added 26.01 points, or 1.22 percent, to 2,152.06.

Caterpillar