 Dicks Sporting Goods Inc. stock DKS, -1.97 slid 3.7 in premarket trade Tuesday, even after the retailer topped estimates for the third quarter with positive same-store sales and an upbeat outlook. The company posted net income of 228 million, or 2.45 a share, for the quarter, down from 317 million, or 2.78 a share, in the year-earlier period. 