Beating analysts' expectations and raising guidance wasn't enough to make investors feel good about the retailer.Shares of Dick's Sporting Goods (DKS -6.65%) dropped on Wednesday after the athletic goods retailer reported results for its fiscal second quarter. As of 1:45 p.m. ET, Dick's stock was down 6.7%, but it had been down by nearly 11% earlier in the session.Higher sales and higher profitsIn its fiscal Q2, which ended Aug. 3, Dick's same-store sales grew by 4.5%, which led to nearly 8% growth in its n ...