U.S. stocks surged 3 percent on Monday, extending gains into a second week as a pledge by German and French leaders boosted hopes that the euro-zone debt crisis may be resolved.

The Dow Jones industrial average <.DJI> gained 329.76 points, or 2.97 percent, to 11,432.88. The Standard & Poor's 500 Index <.SPX> gained 39.45 points, or 3.41 percent, to 1,194.91. The Nasdaq Composite Index <.IXIC> gained 86.70 points, or 3.50 percent, to 2,566.05.

(Editing by Kenneth Barry)