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Costco Wholesale (COST) operating margin by quarter

Costco Wholesale's operating margin was 4.0% in Q4 FY26 (fourth quarter fiscal 2026), -0.0 pts from Q3 FY26. Over the last 7 quarters it ranged from 3.6% (Q2 FY25) to 4.0% (Q3 FY25).

Costco Wholesale operating margin by quarterCostco Wholesale operating margin by quarter3.6%Q2 FY254.0%Q3 FY253.9%Q4 FY253.7%Q1 FY263.7%Q2 FY264.0%Q3 FY264.0%Q4 FY26
QuarterOperating marginQ/QY/Y
Q4 FY264.0%-0.0 pts+0.1 pts
Q3 FY264.0%+0.2 pts-0.0 pts
Q2 FY263.7%+0.1 pts+0.1 pts
Q1 FY263.7%-0.2 pts—
Q4 FY253.9%-0.1 pts—
Q3 FY254.0%+0.4 pts—
Q2 FY253.6%——

Q4 FY26 at a glance

Costco Wholesale, Q4 FY26: revenue $95.7B (+11% year over year), operating margin 4.0%, net earnings $3.0B. The chart follows the revenue to costs, profit and cash.

Questions

What is Costco Wholesale's operating margin?

Costco Wholesale's operating margin was 4.0% in Q4 FY26 (fourth quarter fiscal 2026), -0.0 pts from Q3 FY26.

How has Costco Wholesale's operating margin changed?

Over the last 7 quarters it ranged from 3.6% (Q2 FY25) to 4.0% (Q3 FY25).

Q4 FY26 results → · How Costco Wholesale makes money →