Costco Wholesale (COST) Net Margin (2009 - 2026)
Costco Wholesale (COST) posted Net Margin of 3.11% for fiscal Q3 2026 (quarter ended May 10, 2026), up 0.10 percentage points from 3.01% a year earlier and up 0.18 percentage points from the prior quarter.
Costco Wholesale (COST) Net Margin (2009 - 2026) Analysis & Trends
For the trailing twelve months through May 10, 2026, Net Margin at Costco Wholesale was 3.01%, up 0.09 percentage points year-over-year; for FY2025 (ended Aug 31, 2025), it was 2.94%, up 0.05 percentage points from FY2024.
- Annual Net Margin has increased for five consecutive fiscal years, with a five-year change of +0.54 percentage points (FY2020 to FY2025).
- In prior fiscal years, Costco Wholesale's Net Margin was 2.90% in FY2024 (+0.30 pp), 2.60% in FY2023 (+0.02 pp), 2.57% in FY2022 (+0.02 pp) and 2.56% in FY2021 (+0.16 pp).
- The fiscal Q3 2026 figure stands as the highest quarterly Net Margin in data going back to fiscal Q2 2009.
- On a year-over-year basis, Net Margin has increased in each of the last five quarters, with an average year-over-year change of +0.09 percentage points over the last eight quarters.
- The strongest year-over-year quarter for Net Margin in the past five years was fiscal Q3 2024, with a gain of 0.45 percentage points; the weakest was fiscal Q2 2025, with a drop of 0.18 percentage points.
- According to Business Quant data, Net Margin for the three prior fiscal quarters was 2.92% (Q2 2026), 2.97% (Q1 2026) and 3.03% (Q4 2025).
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Net Margin (Qtr) |
|---|---|---|---|---|---|
| 1 | Walmart | 862.64 Bn | 825.34 Bn | 49.13 Bn | 3.39% |
| 2 | Costco Wholesale | 409.33 Bn | 338.62 Bn | 9.01 Bn | 3.11% |
| 3 | Sysco | 37.65 Bn | 31.90 Bn | 4.13 Bn | 2.49% |
| 4 | Kroger | 35.26 Bn | 21.42 Bn | 7.86 Bn | 1.84% |
| 5 | Dollar General | 27.43 Bn | 22.11 Bn | 3.68 Bn | 4.87% |
| 6 | Caseys General Stores | 22.41 Bn | 20.40 Bn | 1.24 Bn | 4.82% |
| 7 | Dollar Tree | 21.77 Bn | 18.40 Bn | 2.10 Bn | 10.52% |
| 8 | US Foods Holding | 20.27 Bn | 20.06 Bn | 1.92 Bn | 2.61% |
| 9 | Tractor Supply | 16.74 Bn | 15.90 Bn | 1.68 Bn | 7.94% |
| 10 | Performance Food | 14.36 Bn | 14.14 Bn | 2.17 Bn | 0.90% |
Historic Data
| Date | Value |
|---|---|
| May 10, 2026 | 3.11% |
| Feb 15, 2026 | 2.92% |
| Nov 23, 2025 | 2.97% |
| Aug 31, 2025 | 3.03% |
| May 11, 2025 | 3.01% |
| Feb 16, 2025 | 2.81% |
| Nov 24, 2024 | 2.89% |
| Sep 1, 2024 | 2.95% |
| May 12, 2024 | 2.87% |
| Feb 18, 2024 | 2.98% |
| Nov 26, 2023 | 2.75% |
| Sep 3, 2023 | 2.74% |
| May 7, 2023 | 2.43% |
| Feb 12, 2023 | 2.65% |
| Nov 20, 2022 | 2.51% |
| Aug 28, 2022 | 2.59% |
| May 8, 2022 | 2.57% |
| Feb 13, 2022 | 2.50% |
| Nov 21, 2021 | 2.63% |
| Aug 29, 2021 | 2.66% |
Costco Wholesale Net Margin API
Pull this series into your own models, spreadsheets and apps with the Business Quant
Historical Metrics API. The request below matches the chart above — change the
frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.
https://data.businessquant.com/historic?slug=net-margin&ticker=COST&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "net-margin", "ticker": "COST", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=net-margin&ticker=COST&period=max&api_key=YOUR_API_KEY");
const data = await res.json();