While its stock managed to rise following its fiscal first-quarter earnings report last week, there was not much to cheer about with Target's (TGT -0.79%) latest results. The company has been losing ground to rivals such as Walmart (WMT 0.62%), Costco Wholesale (COST -0.82%), and Amazon (AMZN -0.87%), which have all been reporting better sales growth over the past few years.Last quarter, the company saw its same-store sales drop, in part, due to pushback from customers after the retailer rolled back its div ...