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

Costco Wholesale (COST) has reported Net Margin for 18 consecutive years, with 3.11% the latest figure, recorded in Q2 2026.

• For the quarter ending Q2 2026, Net Margin rose 10.0% year-over-year to 3.11%; the trailing twelve-month figure through May 2026 stood at 3.01% (up 9.0% YoY), and the FY2025 full-year result was 2.94%, up 5.0% from the prior year.
• Net Margin rose to 3.11% in Q2 2026 per COST's latest filing, from 2.92% in the prior quarter.
• Across five years, Net Margin topped out at 3.11% in Q2 2026 and bottomed at 2.43% in Q2 2023.
• Historically, Net Margin has averaged 2.8% across 5 years, with a median of 2.84% in 2024.
• The sharpest annual moves came in 2023 and 2024: Net Margin decreased 18 bps in 2023, then surged 45 bps in 2024.
• Over 5 years, 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 climbed by 5 bps to 3.11% in 2026.
• According to Business Quant data, Net Margin over the past three periods registered 3.11%, 2.92%, and 2.97% for Q2 2026, Q1 2026, and Q4 2025 respectively.