Don't let Chewy's recent share price increase scare you away from a long-term investment in an industry leader. Leading online pet-products retailer Chewy (CHWY 5.81%) has seen its share price rocket 56% higher over the last month. This run might have investors thinking they missed their opportunity to buy shares in the newly profitable business. However, even after growing its net profit margin from negative 9% in 2018 to 2.3% in its last quarter, Chewy could still be in the early stages of its margin expa ...