Costco September net sales rise 13% to $30.02 billion

Costco Wholesale Corporation (Nasdaq: COST) reported net sales of $30.02 billion for the five weeks ended October 4, 2026, a 13.0% increase from $26.58 billion in the same period a year earlier, according to a company statement.

Total comparable sales rose 11.4% for the period. By region, U.S. comparable sales increased 12.5%, Canada rose 6.3%, and other international markets gained 10.8%. Excluding the effects of gasoline price changes and foreign exchange, total comparable sales grew 7.6%, with the U.S. up 8.0%, Canada up 4.9%, and other international markets up 7.7%.

Digitally-enabled sales, which include purchases initiated through a digital device and fulfilled through a warehouse, distribution center, or Costco Travel, rose 19.0% year-over-year on a reported basis, and 19.1% excluding foreign exchange impacts.

Costco noted that the Labor Day holiday in the U.S. and Canada fell one week later this year compared to last year, which positively affected September total and comparable sales by slightly more than 50 basis points.

Costco currently operates 939 warehouses globally, including 647 in the United States and Puerto Rico, 115 in Canada, 43 in Mexico, 37 in Japan, 29 in the United Kingdom, 20 in Korea, 15 in Australia, 14 in Taiwan, seven in China, five in Spain, three in France, two in Sweden, and one each in Iceland and New Zealand.

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