Target (NYSE: TGT) has transformed itself over the last decade, going from a middling big-box chain to a unique omnichannel retailer with a number of competitive advantages. The company has invested in store-based fulfillment, coaxing customers into picking up their online orders, which is a more cost-effective way of fulfilling them than shipping from warehouses. Consequently, the stock has been a big winner over the last decade, but more recently it's struggled as shopping habits have shifted back to services and the company has struggled to manage its inventory.