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

Costco Wholesale has reported Net Margin for 18 years, with the latest figure at 2.92% in Q1 2026.

• For the quarter ending Q1 2026, Net Margin rose 12.0% year-over-year to 2.92%; the trailing twelve-month figure through Feb 2026 stood at 2.99% (up 10.0% YoY), and the FY2025 full-year result was 2.94%, up 5.0% from the prior year.
• Net Margin for Q1 2026 stood at 2.92%, down from 2.97% in the prior quarter.
• The five-year high for Net Margin was 3.03% in Q3 2025, with the low at 2.43% in Q2 2023.
• Historically, Net Margin has averaged 2.78% across 5 years, with a median of 2.81% in 2025.
• Annual changes were most pronounced in 2023 — Net Margin retreated 18 bps — and 2024, when it jumped 45 bps.
• Costco Wholesale's Net Margin stood at 2.51% in 2022, then gained by 10 bps to 2.75% in 2023, then advanced by 5 bps to 2.89% in 2024, then climbed by 3 bps to 2.97% in 2025, then fell by 2 bps to 2.92% in 2026.
• The last three Net Margin figures came in at 2.92% (Q1 2026), 2.97% (Q4 2025), and 3.03% (Q3 2025), per Business Quant data.