Costco Wholesale Corporation reported net sales of $29.86 billion for the five weeks ended January 4, 2026, representing an 8.5% increase from $27.52 billion in the same period last year. This robust top-line performance extends the company’s streak of double-digit growth in key holiday months and underscores continued strength in bulk retail demand across all regions.

Total company comparable sales rose 7.0% in December and 6.6% over the first eighteen weeks, with digitally-enabled transactions up 18.9% for the month and 19.6% year-to-date. International markets led with 10.6% comp growth in December (9.5% YTD), while Canada delivered 8.4% (7.0% YTD) and the U.S. posted 6.0% (5.9% YTD). Excluding gasoline and currency impacts, total comps were 6.2% for the month and 6.3% for eighteen weeks.

Costco now operates 923 warehouses worldwide, including 633 in the U.S. and Puerto Rico, 114 in Canada and expansion into Asia and Europe with new locations in China, Sweden and France. The company’s low-cost membership fee structure continues to drive renewal rates above 90%, contributing hundreds of millions in recurring revenue following the September 2024 fee increase.

With sales up more than $7 billion over the first eighteen weeks compared to last year and digitally-enabled sales approaching $20 billion, Costco’s mix of e-commerce growth and in-warehouse traffic positions it well for sustained margin expansion. Management will host a recorded discussion of these results through January 14, 2026, and investors will be watching for guidance on membership fee cadence and potential retail media monetization initiatives to further enhance profitability.