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Costco Wholesale (COST) Operating Margin (2016 - 2026)

Costco Wholesale (COST) has disclosed Operating Margin for 18 consecutive years, with 3.74% as the latest value for Q1 2026.

  • For the quarter ending Q1 2026, Operating Margin rose 11.0% year-over-year to 3.74%, compared with a TTM value of 3.82% through Feb 2026, up 13.0%, and an annual FY2025 reading of 3.77%, up 12.0% over the prior year.
  • Operating Margin was 3.74% for Q1 2026 at Costco Wholesale, up from 3.66% in the prior quarter.
  • Across five years, Operating Margin topped out at 4.0% in Q2 2025 and bottomed at 3.13% in Q2 2023.
  • Average Operating Margin over 5 years is 3.57%, with a median of 3.53% recorded in 2024.
  • The sharpest move saw Operating Margin dropped -28bps in 2023, then surged 62bps in 2024.
  • Year by year, Operating Margin stood at 3.22% in 2022, then increased by 7bps to 3.43% in 2023, then increased by 3bps to 3.53% in 2024, then increased by 4bps to 3.66% in 2025, then increased by 2bps to 3.74% in 2026.
  • Business Quant data shows Operating Margin for COST at 3.74% in Q1 2026, 3.66% in Q4 2025, and 3.88% in Q3 2025.