The calendar for Wall Street on Friday will be highlighted by General Electric ( GE), whose quarterly results will be out before the opening bell. GE, a component of the Dow Jones Industrial Average and a conglomerate that's an economic indicator on its own, could figure prominently in the direction of the overall market, which for the past three days has been downward. Also due to report are Schlumberger ( SLB), Johnson Controls ( JCI), LaBranche ( LAB) and McMoRan Exploration ( MMR), among others. The notable data will be the December leading economic indicators from the Conference Board and the University of Michigan's preliminary consumer sentiment index for January. Jeffrey Lacker, president of the Richmond Federal Reserve Bank, is scheduled to give a speech. On TheStreet.com, check in early for the latest installment of "The Five Dumbest Things on Wall Street This Week." Also, Scott Moritz will take a look at who's now poised to have the most market share in the mobile-phone market, and Vishesh Kumar will update what's happening at Google ( GOOG).