Stocks fell on Wednesday, led lower by energy stocks, after a sliding euro and rising Italian bond yields heightened concerns about Europe's debt crisis, curbing investors' appetite for risky assets.

The Dow Jones industrial average <.DJI> was down 109.14 points, or 0.91 percent, at 11,845.80. The Standard & Poor's 500 Index <.SPX> was down 12.45 points, or 1.02 percent, at 1,213.28. The Nasdaq Composite Index <.IXIC> was down 40.32 points, or 1.56 percent, at 2,538.95.

(Reporting by Angela Moon; Editing by Padraic Cassidy)