Stocks dipped at Tuesday's opening bell, retreating after a rally a day earlier, as investors wait for fresh direction ahead of Friday's key snapshot of the job market in February. The Dow Jones industrial average <.DJI> dipped 17 points, or 0.16 percent, at 10,662. The Standard & Poor's 500 Index <.SPX> eased 0.92 of a point, or 0.08 percent, at 1,155. The technology-focused Nasdaq Composite Index <.IXIC> fell 1 point, or 0.09 percent, to 2,056.//