DPLMF (Diploma) Effective Interest Rate on Debt %: 4.98% (As of Mar. 2026)


DPLMF Diploma PLC DPLMF
96 GF Score
Price $94.50
GF Value $74.05
Valuation Modestly Overvalued
! 6 Warning Signs
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What is Diploma Effective Interest Rate on Debt %?

Diploma DPLMF 96 Effective Interest Rate on Debt % is 4.98% as of Mar. 2026. GuruFocus rates DPLMF with a GF Score™ of 96/100 and a GF Value™ of $74.05 (Modestly Overvalued). The stock has 6 warning signs investors should review.

Effective Interest Rate on Debt % is the usage rate that a borrower actually pays on a debt. It is calculated as the positive value of Interest Expense divided by its average total debt. Total debt equals to Long-Term Debt & Capital Lease Obligation plus Short-Term Debt & Capital Lease Obligation. Diploma's annualized positive value of Interest Expense for the quarter that ended in Mar. 2026 was $32 Mil. Diploma's average total debt for the quarter that ended in Mar. 2026 was $648 Mil. Therefore, Diploma's annualized Effective Interest Rate on Debt % for the quarter that ended in Mar. 2026 was 4.98%.


Diploma  (OTCPK:DPLMF) Effective Interest Rate on Debt % Explanation

Effective Interest Rate on Debt % measures the usage rate that a borrower actually pays on a debt.


Diploma Effective Interest Rate on Debt % Related Terms


Diploma Effective Interest Rate on Debt % Historical Data

* Premium members only.

The historical data trend for Diploma's Effective Interest Rate on Debt % 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.

Diploma Effective Interest Rate on Debt % Chart

Diploma Annual Data
Trend Sep16 Sep17 Sep18 Sep19 Sep20 Sep21 Sep22 Sep23 Sep24 Sep25
Effective Interest Rate on Debt %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 4.19 2.91 4.85 5.65 5.11

Diploma Semi-Annual Data
Sep16 Mar17 Sep17 Mar18 Sep18 Mar19 Sep19 Mar20 Sep20 Mar21 Sep21 Mar22 Sep22 Mar23 Sep23 Mar24 Sep24 Mar25 Sep25 Mar26
Effective Interest Rate on Debt % 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 4.97 6.95 4.97 5.23 4.98

DPLMF vs GWW, FAST, FERG: Effective Interest Rate on Debt % Comparison

For the Industrial Distribution subindustry, Diploma's Effective Interest Rate on Debt %, along with its competitors' market caps and Effective Interest Rate on Debt % 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.


Diploma Effective Interest Rate on Debt % vs Industrial Distribution Industry

For the Industrial Distribution industry and Industrials sector, Diploma's Effective Interest Rate on Debt % distribution charts can be found below:

* The bar in red indicates where Diploma's Effective Interest Rate on Debt % falls into.


DPLMF
96GF Score
Diploma PLC DPLMF
Effective Interest Rate on Debt % is just one metric. See GF Score™, valuation, warning signs, and more.
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Diploma Effective Interest Rate on Debt % Calculation

Diploma's annualized Effective Interest Rate on Debt % for the fiscal year that ended in Sep. 2025 is calculated as

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (A: Sep. 2024 )+Total Debt  (A: Sep. 2025 ))/ count )
=-1  *  -34.73/( (730.291+628.243)/ 2 )
=-1  *  -34.73/679.267
=5.11 %

where

Total Debt  (A: Sep. 2024 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=712.963 + 17.328
=730.291

Total Debt  (A: Sep. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=608.784 + 19.459
=628.243

Diploma's annualized Effective Interest Rate on Debt % for the quarter that ended in Mar. 2026 is calculated as

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (Q: Sep. 2025 )+Total Debt  (Q: Mar. 2026 ))/ count )
=-1  *  -32.266/( (628.243+668.533)/ 2 )
=-1  *  -32.266/648.388
=4.98 %

where

Total Debt  (Q: Sep. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=608.784 + 19.459
=628.243

Total Debt  (Q: Mar. 2026 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=648.133 + 20.4
=668.533

* 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.

In the calculation of annual Effective Interest Rate on Debt %, the Interest Expense of the last fiscal year and the average total debt over the fiscal year are used. In calculating the quarterly data, the Interest Expense data used here is two times the semi-annual (Mar. 2026) interest expense data. Effective Interest Rate on Debt % is displayed in the 30-year financial page.

What does a Effective Interest Rate on Debt % of 4.98% mean?
Diploma (DPLMF) has a Effective Interest Rate on Debt % of 4.98% as of Mar. 2026. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on Diploma and its competitors.
Is Diploma's Effective Interest Rate on Debt % too high?
Diploma's current Effective Interest Rate on Debt % is 4.98%. Overall, Diploma has a GF Score™ of 96/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Diploma's Effective Interest Rate on Debt % compare to GWW and FAST?
Diploma's Effective Interest Rate on Debt % of 4.98% can be compared against companies in the Industrial Distribution industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Effective Interest Rate on Debt % for an Industrial Distribution company?
A good Effective Interest Rate on Debt % depends on the Industrial Distribution industry context. However, Effective Interest Rate on Debt % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Effective Interest Rate on Debt % mean?
A high Effective Interest Rate on Debt % can signal that a stock is expensive relative to its fundamentals. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on Diploma and its competitors. Diploma's current Effective Interest Rate on Debt % is 4.98%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Diploma stock overvalued right now?
Based on GuruFocus' analysis, Diploma (DPLMF) is currently considered Modestly Overvalued. The stock's GF Value™ is $74.05, compared to a current price of $94.50 — trading 27.6% above its estimated fair value. The current Effective Interest Rate on Debt % is 4.98%. Diploma's overall GF Score™ is 96/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Effective Interest Rate on Debt % calculated?
Effective Interest Rate on Debt % is calculated from a company's financial statements. For Diploma (DPLMF), the current Effective Interest Rate on Debt % is 4.98% as of Mar. 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 Diploma (DPLMF) Overvalued in 2026?

Based on GuruFocus' analysis, Diploma stock appears to be overvalued. The current stock price of $94.50 is trading 27.6% above its estimated GF Value™ of $74.05. GuruFocus considers Diploma to be Modestly Overvalued.

Key valuation signals for DPLMF:

  • Effective Interest Rate on Debt %: 4.98%
  • GF Value™: $74.05 vs. price of $94.50 (27.6% above fair value)
  • GF Score™: 96/100 with 6 warning signs

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


Diploma Business Description

Address 10-11 Charterhouse Square, London, GBR, EC1M 6EE
Diploma PLC is a group of businesses supplying specialised technical products and services to various industries. The Group is organized into three main reportable business sectors: Controls, Seals and Life Sciences. The company offers consumables, instrumentation, and related services to the healthcare and environmental industries; seals, gaskets, filters, cylinders, components, and kits for heavy mobile machinery and industrial equipment; and specialized wiring, connectors, fasteners, and control devices for various applications. It operates in segments such as Wire & Cable (UK), Industrial Automation, Specialty Adhesives, Windy City Wire, Interconnect and Specialty Fasteners. The company operates in UK, USA, Rest of Europe, and Rest of World.
96GF Score

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Effective Interest Rate on Debt % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$94.50
Price
$74.05
GF Value