Surging Costco stock downgraded by Wells Fargo because this 'may be as good as it gets'Wells Fargo Securities lowers its rating to market perform from outperform for Costco shares, citing the retailer's high valuation.[Collection]

Wells Fargo Securities lowers its rating to market perform from outperform for Costco shares, citing the retailer's high valuation.https://www.cnbc.com/2018/09/14/costco-downgraded-by-wells-fargo-because-this-may-be-as-good-as-it-gets.html