As previously reported, Northcoast upgraded Costco to Buy from Neutral with a $190 price target. Analyst Chuck Cerankosky said the firm's Retail Momentum Index has strengthened for Costco and expects earning to benefit from fiscal 2018 by membership fee increases that took effect on June 1. The analyst said Costco is able to combine value merchandising with an upscale product selection in a destination shopping format, is taking market share in fresh food categories, and is shown to be relatively immune to food deflation over the past several quarters.