Costco Wholesale (COST) Inventory Average (2009 - 2026)

Costco Wholesale's Inventory Average history runs 18 years deep, the most recent figure standing at $20.1 billion for Q1 2026.

• Quarterly Inventory Average rose 1.0% year-over-year to $20.1 billion in Q1 2026, while the trailing twelve-month figure through Feb 2026 was $20.1 billion (up 1.0% YoY) and the FY2025 annual result came in at $18.4 billion, up 4.15% from the prior year.
• Inventory Average was $20.1 billion for Q1 2026 at Costco Wholesale, up from $19.6 billion in the prior quarter.
• Across five years, Inventory Average topped out at $20.1 billion in Q1 2026 and bottomed at $16.2 billion in Q2 2023.
• A 5-year average of $18.0 billion and a median of $17.8 billion in 2022 frame the typical range for Inventory Average.
• Annual changes were most pronounced in 2022 — Inventory Average climbed 26.04% — and 2023, when it decreased 7.19%.
• Costco Wholesale's Inventory Average stood at $18.2 billion in 2022, then declined by 5.01% to $17.3 billion in 2023, then gained by 14.35% to $19.8 billion in 2024, then fell by 0.93% to $19.6 billion in 2025, then climbed by 2.23% to $20.1 billion in 2026.
• Business Quant data shows COST's Inventory Average at $20.1 billion in Q1 2026, $19.6 billion in Q4 2025, and $18.4 billion in Q3 2025.