Costco Wholesale (COST) Net Margin (2009 - 2026)

Costco Wholesale's Net Margin history runs 18 years deep, the most recent figure standing at 2.92% for Q1 2026.

• Quarterly Net Margin rose 12.0% year-over-year to 2.92% in Q1 2026, while the trailing twelve-month figure through Feb 2026 was 2.99% (up 10.0% YoY) and the FY2025 annual result came in at 2.94%, up 5.0% from the prior year.
• Net Margin was 2.92% for Q1 2026 at Costco Wholesale, down from 2.97% in the prior quarter.
• Across five years, Net Margin topped out at 3.03% in Q3 2025 and bottomed at 2.43% in Q2 2023.
• A 5-year average of 2.78% and a median of 2.81% in 2025 frame the typical range for Net Margin.
• Annual changes were most pronounced in 2023 — Net Margin dropped 18 bps — and 2024, when it jumped 45 bps.
• Costco Wholesale's Net Margin stood at 2.51% in 2022, then climbed by 10 bps to 2.75% in 2023, then grew by 5 bps to 2.89% in 2024, then increased by 3 bps to 2.97% in 2025, then decreased by 2 bps to 2.92% in 2026.
• Business Quant data shows COST's Net Margin at 2.92% in Q1 2026, 2.97% in Q4 2025, and 3.03% in Q3 2025.