Costco Wholesale Corp. /zigman2/quotes/201191698/composite COST +0.32% said late Wednesday that September same-store sales rose 4.2% from a year ago. The warehouse club said September net sales rose to $14.41 billion from $13.64 billion a year-ago. Costco shares declined 0.2% after hours, following a 1.7% rise to close the regular session at $296.90.
An earlier version of this report had an incorrect number for same-store sales and an incorrect description of net sales. It has been corrected.