Costco Wholesale Corp.'s net sales in July grew 10.1% to $10.59 billion from $9.62 billion in the same month a year ago.

For the four-week period ended Aug. 5, comparable sales of the warehouse club operator rose 8.3% year over year, while e-commerce comparable sales were up 20.9%.

Comparable sales in Canada also grew 3.2% and climbed 6.3% in other international markets.

Meanwhile, Costco's net sales for the 48 weeks of fiscal 2018 came in at $127.40 billion, up 12.1% from $113.70 billion a year ago.