Why are profits about to drop?On June 18, restaurant chain Chipotle Mexican Grill (CMG -1.95%) completed its highly publicized 50-for-1 stock split. Shareholders saw their $3,000 stock become 50 shares worth about $60 each.Then, on July 24, Chipotle reported financial results for the second quarter, and the stock initially soared in after-hours trading. But once management spoke with analysts on the earnings call, the stock settled. While the Q2 headline numbers were great, there were concerns in the subseq ...