Costco Wholesale Corporation reported sales results for the four-weeks and thirty nine weeks ended May 31, 2026. For the four-week reporting month of May, ended May 31, 2026, the company reported net sales of $24.01 billion, an increase of 14.5% from $20.97 billion last year.

Net sales for the first thirty nine weeks were $221.19 billion, an increase of 10.0% from $201.02 billion last year.