The membership warehouse chain said sales in November rose 5.6% year over year to $21.87 billion. In October, Costco’s sales rose 7.2%. Same-store sales last month rose 3.1% overall, with a 3.4% ...

Costco Wholesale Corp. on Wednesday reported a 9.9% year-over-year sales gain through the final stretch of the holiday-shopping season, marked by a big jump in online sales due to the later timing ...