Costco Wholesale shares fell more than 4% on Thursday even after the retailer reported strong June sales, as investors focused on regional softness, currency pressure and the stock’s rich valuation after a long run. The company said net sales stood at $29.24 billion for the five weeks ended July 5, 2026, up 10.6% from the same period last year. Comparable sales in the US also rose 10.6%, showing that demand in its largest market remained healthy.
Canada, however, was weaker. Comparable sales there rose 3.7%, well below the pace seen in the US. The gap between the two regions drew investor attention, as it showed that Costco’s headline growth was not evenly spread across markets.
