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Costco Wholesale Corp COST
Costco Wholesale COST +0.34% 97 Interest Coverage is 87.97 as of May. 2026, which is 143% above its 10-year median of 36.19. GuruFocus rates COST with a GF Score™ of 97/100 and a GF Value™ of $1,014.93 (Fairly Valued). The stock has 1 warning sign investors should review. Among 254 Retail - Defensive companies, Costco Wholesale ranks better than 83.86% on this metric.
Interest Coverage is a ratio that determines how easily a company can pay interest expenses on outstanding debt. It is calculated by dividing a company's Operating Income by its Interest Expense. Costco Wholesale's Operating Income for the three months ended in May. 2026 was $2,815 Mil. Costco Wholesale's Interest Expense for the three months ended in May. 2026 was $-32 Mil. Costco Wholesale's interest coverage for the quarter that ended in May. 2026 was 87.97. The higher the ratio, the stronger the company's financial strength is.
Good Sign:
Ben Graham prefers companies' interest coverage to be at least 5. Costco Wholesale Corp has enough cash to cover all of its debt. Its financial situation is stable.
The historical rank and industry rank for Costco Wholesale's Interest Coverage or its related term are showing as below:
Note: If both Interest Expense and Interest Income are empty, while Net Interest Income is negative, then use Net Interest Income as Interest Expense.
Costco Wholesale (NAS:COST) Interest Coverage Explanation
Ben Graham requires that a company has a minimum interest coverage of 5 with the companies he invested. If the interest coverage is less than 2, the company is burdened by debt. Any business slow or recession may drag the company into a situation where it cannot pay the interest on its debt.
Interest Coverage is an important factor when GuruFocus ranks a company's overage Financial Strength .
The historical data trend for Costco Wholesale's Interest Coverage can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Note: For Interest Coverage, "No debt" indicates no long-term debt. An indication of "No Debt" does not necessarily mean that the company has no long-term debt obligations; it could be due to missing data in the quarterly or annual report. Use caution when interpreting this information.
| Costco Wholesale Annual Data | |||||||||||||||||||||
| Trend | Aug16 | Aug17 | Aug18 | Aug19 | Aug20 | Aug21 | Aug22 | Aug23 | Aug24 | Aug25 | |||||||||||
| Interest Coverage | Get a 7-Day Free Trial |
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39.23 | 49.32 | 50.71 | 54.94 | 67.42 | |||||||||||||
| Costco Wholesale Quarterly Data | ||||||||||||||||||||
| Aug21 | Nov21 | Feb22 | May22 | Aug22 | Nov22 | Feb23 | May23 | Aug23 | Nov23 | Feb24 | May24 | Aug24 | Nov24 | Feb25 | May25 | Aug25 | Nov25 | Feb26 | May26 | |
| Interest Coverage | Get a 7-Day Free Trial |
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72.29 | 72.63 | 70.37 | 78.97 | 87.97 | ||
For the Discount Stores subindustry, Costco Wholesale's Interest Coverage, along with its competitors' market caps and Interest Coverage data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
For the Retail - Defensive industry and Consumer Defensive sector, Costco Wholesale's Interest Coverage distribution charts can be found below:
* The bar in red indicates where Costco Wholesale's Interest Coverage falls into.
Interest Coverage is a ratio that determines how easily a company can pay interest expenses on outstanding debt. It is calculated by dividing a company's Operating Income (EBIT) by its Interest Expense:
If Interest Expense is negative and Operating Income is positive, then
| Interest Coverage | = | -1 | * | Operating Income | / | Interest Expense |
Else if Interest Expense is negative and Operating Income is negative, then
| The company did not have earnings to cover the interest expense. |
Else if Interest Expense is 0 and Long-Term Debt & Capital Lease Obligation is 0, then
| The company had no debt (1). |
Note: If both Interest Expense and Interest Income are empty, while Net Interest Income is negative, then use Net Interest Income as Interest Expense.
Costco Wholesale's Interest Coverage for the fiscal year that ended in Aug. 2025 is calculated as
Here, for the fiscal year that ended in Aug. 2025, Costco Wholesale's Interest Expense was $-154 Mil. Its Operating Income was $10,383 Mil. And its Long-Term Debt & Capital Lease Obligation was $8,173 Mil.
| Interest Coverage | = | -1 | * | Operating Income (A: Aug. 2025 ) | / | Interest Expense (A: Aug. 2025 ) |
| = | -1 | * | 10383 | / | -154 | |
| = | 67.42 |
Costco Wholesale's Interest Coverage for the quarter that ended in May. 2026 is calculated as
Here, for the three months ended in May. 2026, Costco Wholesale's Interest Expense was $-32 Mil. Its Operating Income was $2,815 Mil. And its Long-Term Debt & Capital Lease Obligation was $8,136 Mil.
| Interest Coverage | = | -1 | * | Operating Income (Q: May. 2026 ) | / | Interest Expense (Q: May. 2026 ) |
| = | -1 | * | 2815 | / | -32 | |
| = | 87.97 |
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
The higher the ratio, the stronger the company's Financial Strength is.
Based on GuruFocus' analysis, Costco Wholesale stock appears to be undervalued. The current stock price of $960.97 is trading 5.3% below its estimated GF Value™ of $1,014.93. GuruFocus considers Costco Wholesale to be Fairly Valued.
Key valuation signals for COST:
No single metric tells the full story. See the COST stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Interest Coverage is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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