WD-40 Co (STU:WD1) Interest Coverage: 50.78 (As of May. 2026) — 64% Above Median

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STU:WD1 WD-40 Co STU:WD1
36 GF Score
Price €217.80
GF Value €245.32
Valuation Fairly Valued
! 6 Warning Signs
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What is WD-40 Co Interest Coverage?

WD-40 Co STU:WD1 -0.35% 36 Interest Coverage is 50.78 as of May. 2026, which is 64% above its 10-year median of 30.91. GuruFocus rates STU:WD1 with a GF Score™ of 36/100 and a GF Value™ of €245.32 (Fairly Valued). The stock has 6 warning signs investors should review. Among 1,232 Chemicals companies, WD-40 Co ranks better than 74.51% 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. WD-40 Co's Operating Income for the three months ended in May. 2026 was €34.5 Mil. WD-40 Co's Interest Expense for the three months ended in May. 2026 was €-0.7 Mil. WD-40 Co's interest coverage for the quarter that ended in May. 2026 was 50.78. The higher the ratio, the stronger the company's financial strength is.

The historical rank and industry rank for WD-40 Co's Interest Coverage or its related term are showing as below:

STU:WD1' s Interest Coverage Range Over the Past 10 Years
Min: 15.98   Med: 30.91   Max: 42.6
Current: 42.6


STU:WD1's Interest Coverage is ranked better than
74.51% of 1232 companies
in the Chemicals industry
Industry Median: 10.13 vs STU:WD1: 42.60

Note: If both Interest Expense and Interest Income are empty, while Net Interest Income is negative, then use Net Interest Income as Interest Expense.


WD-40 Co  (STU:WD1) 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 .


WD-40 Co Interest Coverage Related Terms


WD-40 Co Interest Coverage Historical Data

* Premium members only.

The historical data trend for WD-40 Co'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.

WD-40 Co Interest Coverage Chart

WD-40 Co Annual Data
Trend Aug16 Aug17 Aug18 Aug19 Aug20 Aug21 Aug22 Aug23 Aug24 Aug25
Interest Coverage
Get a 7-Day Free Trial Premium Member Only Premium Member Only 37.09 31.85 15.98 22.48 30.16

WD-40 Co 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 Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 30.84 42.46 35.86 39.50 50.78

STU:WD1 vs HWKN, FUL, AVNT: Interest Coverage Comparison

For the Specialty Chemicals subindustry, WD-40 Co'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.


WD-40 Co Interest Coverage vs Chemicals Industry

For the Chemicals industry and Basic Materials sector, WD-40 Co's Interest Coverage distribution charts can be found below:

* The bar in red indicates where WD-40 Co's Interest Coverage falls into.


STU:WD1
36GF Score
WD-40 Co STU:WD1
Interest Coverage is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

WD-40 Co Interest Coverage Calculation

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.

WD-40 Co'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, WD-40 Co's Interest Expense was €-3.0 Mil. Its Operating Income was €89.2 Mil. And its Long-Term Debt & Capital Lease Obligation was €81.3 Mil.

Interest Coverage=-1* Operating Income (A: Aug. 2025 )/Interest Expense (A: Aug. 2025 )
=-1*89.158/-2.956
=30.16

WD-40 Co's Interest Coverage for the quarter that ended in May. 2026 is calculated as

Here, for the three months ended in May. 2026, WD-40 Co's Interest Expense was €-0.7 Mil. Its Operating Income was €34.5 Mil. And its Long-Term Debt & Capital Lease Obligation was €81.9 Mil.

Interest Coverage=-1* Operating Income (Q: May. 2026 )/Interest Expense (Q: May. 2026 )
=-1*34.528/-0.68
=50.78

* 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.

Frequently Asked Questions Learn more about Interest Coverage →
What does a Interest Coverage of 50.78 mean?
WD-40 Co (STU:WD1) has a Interest Coverage of 50.78 as of May. 2026. Interest Coverage measures a company's capability to pay interest expenses on its debt. View historical data on WD-40 Co and its competitors. This is 64% above median its historical median of 30.91. Over the past decade, WD-40 Co's Interest Coverage has ranged from 15.98 to 42.60. According to the industry distribution chart, WD-40 Co ranks #314 out of 1232 companies in the Chemicals industry, placing it in the top 25.5%.
Is WD-40 Co's Interest Coverage too high?
WD-40 Co's current Interest Coverage of 50.78 is 64% above median its 10-year median of 30.91. Over the past 10 years, this metric has ranged from a low of 15.98 to a high of 42.60. The Chemicals industry median Interest Coverage is 10.13. WD-40 Co's value of 50.78 is 401.3% above this industry median. Based on the distribution chart, WD-40 Co ranks #314 out of 1232 companies in the Chemicals industry, which is above the industry midpoint. Overall, WD-40 Co has a GF Score™ of 36/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does WD-40 Co's Interest Coverage compare to HWKN and FUL?
According to the Chemicals industry distribution chart, WD-40 Co ranks #314 out of 1232 companies for Interest Coverage. This puts WD-40 Co in the upper half of its industry. The industry median Interest Coverage is 10.13. WD-40 Co's value of 50.78 is 401.3% above this benchmark. Historically, WD-40 Co's own Interest Coverage has ranged from 15.98 to 42.60 over the past decade. While the company's 10-year median is 30.91 vs. the industry median of 10.13, WD-40 Co has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Interest Coverage for a Chemicals company?
The median Interest Coverage among Chemicals companies is 10.13, based on 1,232 companies in the industry. Companies in the top quartile (top 25%) have a Interest Coverage significantly above this median, while those in the bottom quartile fall well below. However, Interest Coverage should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. WD-40 Co's current Interest Coverage of 50.78 is 401.3% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Interest Coverage mean?
A high Interest Coverage can signal that a stock is expensive relative to its fundamentals. Interest Coverage measures a company's capability to pay interest expenses on its debt. View historical data on WD-40 Co and its competitors. For the Chemicals industry, the median Interest Coverage is 10.13 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. WD-40 Co's current Interest Coverage is 50.78, which is 64% above median its own 10-year median of 30.91. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is WD-40 Co stock overvalued right now?
Based on GuruFocus' analysis, WD-40 Co (STU:WD1) is currently considered Fairly Valued. The stock's GF Value™ is €245.32, compared to a current price of €217.80 — trading 11.2% below its estimated fair value. The current Interest Coverage is 50.78, which is 64% above median its 10-year median of 30.91 and 401.3% above the Chemicals industry median of 10.13. WD-40 Co's overall GF Score™ is 36/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Interest Coverage calculated?
Interest Coverage is calculated from a company's financial statements. For WD-40 Co (STU:WD1), the current Interest Coverage is 50.78 as of May. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is WD-40 Co (STU:WD1) Overvalued in 2026?

Based on GuruFocus' analysis, WD-40 Co stock appears to be undervalued. The current stock price of €217.80 is trading 11.2% below its estimated GF Value™ of €245.32. GuruFocus considers WD-40 Co to be Fairly Valued.

Key valuation signals for STU:WD1:

  • Interest Coverage: 50.78 (64% above median its 10-year median of 30.91)
  • GF Value™: €245.32 vs. price of €217.80 (11.2% below fair value)
  • GF Score™: 36/100 with 6 warning signs
  • Industry Position: 401.3% above the Chemicals median (#314 of 1232)

No single metric tells the full story. See the STU:WD1 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


WD-40 Co Business Description

Other Exchanges WDFC:USA
Address 9715 Businesspark Avenue, San Diego, CA, USA, 92131
WD-40 Co is a global marketing organization focused on developing and selling products that solve maintenance and cleaning problems internationally. It offers two product groups: maintenance products, including the flagship WD-40 Multi-Use Product, which serves as a lubricant, rust preventative, penetrant, and moisture displacer, marketed globally; and homecare and cleaning products, mainly sold in North America, the UK, and Australia. The company distributes its products through hardware stores, automotive parts outlets, industrial suppliers, mass retailers, online platforms, and specialty retailers across the Americas, EIMEA, and Asia-Pacific, with the majority of revenue generated in the Americas.
36GF Score

Get the complete analysis for STU:WD1

Interest Coverage is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€217.80
Price
€245.32
GF Value