Costco Shares Slip After 11% Jump in Quarterly Sales

Costco Wholesale NASDAQ:COST fell 0.49% in premarket after the company reported fiscal fourth-quarter net sales up 11.2% to $93.9 billion and diluted earnings per share of $6.75, up from $5.87 a year earlier. The 16-week quarter included a one-time benefit of $0.15 a share from IEEPA tariff refunds…