 Burlington Stores Inc. stock BURL, -0.14 slid 1.7 in premarket trade Tuesday before reversing those losses to trade flat, after the discount clothing retailer posted weaker-than-expected third-quarter earnings and Chief Executive Michael OSullivan said it was not happy with its performance. The company had net income of 17 million, or 26 cents a share, for the quarter, up from 14 million, or 20 cents a share, in the year-earlier period. 