Lululemon forecasts flat fourth-quarter same-store sales; shares tumble TORONTO (Reuters) - Canadian yogawear chain Lululemon Athletica Inc (LULU.O), which appointed a new chief executive this week, reported higher profit on Thursday, but forecast flat same-store sales for the crucial fourth quarter. Shares slid 10.7 percent to $61 in trading before the morning bell on the Nasdaq. Net income rose to $66.1 million, or 45 cents per diluted share, for the third quarter ended November 3, from $57.3 million, or 39 cents, in the same period a year ago. Reporting by Solarina Ho; Editing by Jeffrey Benkoe