The Costco warehouse expansion 2026 is one of the most ambitious single-year growth programs in the company's history — 28 new warehouse locations planned for fiscal year 2026, backed by a $6.5 billion capital investment program, and driven by a CEO who has publicly committed to 30-plus new warehouse openings annually for the next five to ten years. CEO Ron Vachris made the long-range plan clear during the Q2 2026 earnings call: "We would still see a really good roadmap for 3