Costco shares fell over 4% despite strong June sales as investors focused on valuation concerns and uneven regional growth. While US demand remained robust, weaker Canada performance and headwinds from currency and fuel price deflation weighed on sentiment, reflecting tighter scrutiny of premium consumer stocks.

Costco Wholesale Corp (NASDAQ: COST) shares are trading lower Thursday morning as investors continue to weigh the company’s June sales update.

Costco shares fell over 4% despite strong June sales as investors focused on valuation concerns and uneven regional growth. While US demand remained robust, weaker Canada…