COST ▲ +4.0% - Costco Wholesale Corporation $COST Costco Wholesale Corporation (“Costco” or the “Company”) (Nasdaq: COST) today reported net sales of $24.50 billion for the retail month of October, the four weeks ended November 1, 2026, an increase of 12.6 percent from $21.75 billion last year. 04-NOV-2026 04:19 PM ET