Stocks rose slightly at the open on Wednesday after stronger-than-forecast U.S. growth data and European banks borrowed more than a half trillion euros as part of an effort to stabilize the euro zone's financial system.

The Dow Jones industrial average <.DJI> gained 9.69 points, or 0.07 percent, at 13,014.81. The Standard & Poor's 500 Index <.SPX> added 1.27 points, or 0.09 percent, at 1,373.45. The Nasdaq Composite Index <.IXIC> rose 3.86 points, or 0.13 percent, at 2,990.62.

(Reporting By Chuck Mikolajczak; editing by Jeffrey Benkoe)