DiplomaDPMAY +2.87%75 Net Margin % is 11.78% as of Mar. 2026, which is 19% above its 10-year median of 9.91. GuruFocus rates DPMAY with a GF Score™ of 75/100 and a GF Value™ of $18.81 (Modestly Overvalued). The stock has 7 warning signs investors should review. Among 157 Industrial Distribution companies, Diploma ranks better than 92.99% on this metric.
Net margin is calculated as Net Income divided by its Revenue. Diploma's Net Income for the
six
months ended in Mar. 2026 was $134 Mil. Diploma's Revenue for the
six
months ended in Mar. 2026 was $1,135 Mil. Therefore, Diploma's net margin for the quarter that ended in Mar. 2026 was 11.78%.
The historical rank and industry rank for Diploma's Net Margin % or its related term are showing as below:
DPMAY'
s Net Margin % Range Over the Past 10 Years
Min: 8.86 Med: 9.91 Max: 12.13
Current: 11.5
DPMAY's Net Margin % is ranked better than 92.99% of 157
companies
in the Industrial Distribution industry
Industry Median: 3.09
vs DPMAY: 11.50
Diploma (OTCPK:DPMAY) Net Margin % Explanation
Although Net Income and Earnings-per-Share (EPS) are the most widely used parameter in measuring a company's profitability and valuation, it is the least reliable. The reason is that reported earnings can be manipulated easily by adjusting any numbers such as Depreciation, Depletion and Amotorization and non-recurring items.
But the long term trend of the net margin is a good indicator of the competitiveness and health of the business.
Diploma Net Margin % Related Terms
Diploma Net Margin % Historical Data
* Premium members only.
The historical data trend for Diploma's Net Margin % 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.
For the Industrial Distribution subindustry, Diploma's Net Margin %, along with its competitors' market caps and Net Margin % 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 Net Margin % vs Industrial Distribution Industry
For the Industrial Distribution industry and Industrials sector, Diploma's Net Margin % distribution charts can be found below:
* The bar in red indicates where Diploma's Net Margin % falls into.
* 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 (DPMAY) has a Net Margin % of 11.78% as of Mar. 2026. Net margin is the ratio of total net income to net sales. View historical data on Diploma and its competitors. This is 19% above median its historical median of 9.91. Over the past decade, Diploma's Net Margin % has ranged from 8.86 to 12.13. According to the industry distribution chart, Diploma ranks #11 out of 157 companies in the Industrial Distribution industry, placing it in the top 7%.
Is Diploma's Net Margin % too high?
Diploma's current Net Margin % of 11.78% is 19% above median its 10-year median of 9.91. Over the past 10 years, this metric has ranged from a low of 8.86 to a high of 12.13. The Industrial Distribution industry median Net Margin % is 3.09. Diploma's value of 11.78% is 281.2% above this industry median. Based on the distribution chart, Diploma ranks #11 out of 157 companies in the Industrial Distribution industry, which is in the top quartile — a strong position relative to peers. Overall, Diploma has a GF Score™ of 75/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Diploma's Net Margin % compare to GWW and FAST?
According to the Industrial Distribution industry distribution chart, Diploma ranks #11 out of 157 companies for Net Margin %. This places Diploma in the top 7% of its industry — outperforming the majority of peers. The industry median Net Margin % is 3.09. Diploma's value of 11.78% is 281.2% above this benchmark. Historically, Diploma's own Net Margin % has ranged from 8.86 to 12.13 over the past decade. While the company's 10-year median is 9.91 vs. the industry median of 3.09, Diploma 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 Net Margin % for an Industrial Distribution company?
The median Net Margin % among Industrial Distribution companies is 3.09, based on 157 companies in the industry. Companies in the top quartile (top 25%) have a Net Margin % significantly above this median, while those in the bottom quartile fall well below. However, Net Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Diploma's current Net Margin % of 11.78% is 281.2% 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 Net Margin % mean?
A high Net Margin % can signal that a stock is expensive relative to its fundamentals. Net margin is the ratio of total net income to net sales. View historical data on Diploma and its competitors. For the Industrial Distribution industry, the median Net Margin % is 3.09 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Diploma's current Net Margin % is 11.78%, which is 19% above median its own 10-year median of 9.91. 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 (DPMAY) is currently considered Modestly Overvalued. The stock's GF Value™ is $18.81, compared to a current price of $23.63 — trading 25.6% above its estimated fair value. The current Net Margin % is 11.78%, which is 19% above median its 10-year median of 9.91 and 281.2% above the Industrial Distribution industry median of 3.09. Diploma's overall GF Score™ is 75/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Net Margin % calculated?
Net Margin % is calculated from a company's financial statements. For Diploma (DPMAY), the current Net Margin % is 11.78% 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 (DPMAY) Overvalued in 2026?
Based on GuruFocus' analysis, Diploma stock appears to be overvalued.
The current stock price of $23.63 is trading 25.6% above its estimated GF Value™ of $18.81.
GuruFocus considers Diploma to be Modestly Overvalued.
Key valuation signals for DPMAY:
Net Margin %: 11.78% (19% above median its 10-year median of 9.91)
GF Value™: $18.81 vs. price of $23.63 (25.6% above fair value)
Industry Position: 281.2% above the Industrial Distribution median (#11 of 157)
No single metric tells the full story. See the DPMAY stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
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.
75GF Score
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