Ticker Company Current Price COST Costco $453.84 COST Stock: Membership Model Provides Many Advantages It’s easy to lump Costco in with other major retailer stocks, but the company differs in a lot of ways from its so-called “peers,” big-box discounters and dollar stores. InvestorPlace - Stock Market News, Stock Advice & Trading Tips Recently, I discussed how Costco (NASDAQ:COST) has been handling inflation much better than its peers in the retail sector. That’s why COST stock has partially bounced back, after plunging during the mid-May retailer stock selloff.