The worst week for U.S. stocks in two months ended with investors mostly on the sidelines on Friday as they wait for politicians in Europe and the United States to tackle festering debt problems.

Based on the latest available data, the Dow Jones industrial average was up 25.50 points, or 0.22 percent, at 11,796.23. The Standard & Poor's 500 Index was down 0.48 point, or 0.04 percent, at 1,215.65. The Nasdaq Composite Index was down 15.49 points, or 0.60 percent, at 2,572.50.

(Reporting by Caroline Valetkevitch; Editing by Kenneth Barry)