Stocks turned lower on Monday after rising at the open, with materials and energy among the top declining sectors as oil prices fell.

The Dow Jones industrial average <.DJI> was down 12.09 points, or 0.12 percent, at 10,131.72. The Standard & Poor's 500 Index <.SPX> dipped 2.58 points, or 0.24 percent, at 1,074.18. The Nasdaq Composite Index <.IXIC> was off 7.89 points, or 0.35 percent, at 2,215.59.

(Reporting by Caroline Valetkevitch; editing by Jeffrey Benkoe)