Costco Reports Strong March Sales Growth Despite Calendar Headwinds

  • Costco reported net sales of $28.41 billion for March 2026, an 11.3% increase from $25.51 billion in the prior year.
  • Comparable sales growth for the five weeks ended April 5, 2026, was 9.4%, with digitally-enabled sales surging 23.3%.
  • First 31 weeks of fiscal 2026 saw net sales of $173.26 billion, up 9.1% year-over-year.
  • Easter calendar shift reduced total and comparable sales by approximately 1.5%.
  • Costco operates 928 warehouses globally, with significant digital presence in 8 countries.

Costco's strong March sales performance reflects continued resilience in both physical and digital channels. The retailer's ability to grow comparable sales despite a calendar shift highlights operational strength. As the retail landscape evolves, Costco's omnichannel strategy and international expansion remain key drivers of its market position.

Digital Acceleration
How Costco will sustain its 23.3% digitally-enabled sales growth amid rising e-commerce competition.
Geographic Expansion
Whether Costco's international markets can maintain double-digit comparable sales growth.
Operational Efficiency
The pace at which Costco can offset calendar-related sales headwinds through operational improvements.