Diamond Power InfrastructureNSE:DIACABS +0.90%54 Operating Margin % is 9.99% as of Mar. 2026, which is 287% above its 10-year median of 2.58. GuruFocus rates NSE:DIACABS with a GF Score™ of 54/100 and a GF Value™ of ₹264.29 (Modestly Undervalued). The stock has 4 warning signs investors should review. Among 3,038 Industrial Products companies, Diamond Power Infrastructure ranks better than 66.75% on this metric.
The historical rank and industry rank for Diamond Power Infrastructure's Operating Margin % or its related term are showing as below:
NSE:DIACABS'
s Operating Margin % Range Over the Past 10 Years
Min: -304.29 Med: 2.58 Max: 10.1
Current: 10.1
NSE:DIACABS's Operating Margin % is ranked better than 66.75% of 3038
companies
in the Industrial Products industry
Industry Median: 6.53
vs NSE:DIACABS: 10.10
Diamond Power Infrastructure (NSE:DIACABS) Operating Margin % Explanation
Just like Gross Margin %, it is important to see a company maintains its operating margin over time. Among the same industry, a company with higher operating margin is more efficient in its operation. It is also more stable during industry slowdown or recessions. Peter Lynch prefers those with higher margins than those with lower margins.
Be Aware
Operating Margin % can be manipulated by adjusting the rate of depreciation, depletion and amortization (DDA).
If a company is facing competition, its Operating Margin % may decline. Often the Operating Margin % declines well before the company's Revenue or even profit decline. Therefore, Operating Margin % is a very important indicator of whether the company is facing problems.
For instance, by 2012, Nokia (NOK)'s problems were well known and its stock had lost more than 90% of its market value since 2007. But Nokias Operating Margin % had already been in decline since 2002, although its Earnings per Share (Diluted) were still rising. Investors who paid attention to Operating Margin % would have avoided this huge loss. The same can be said for Research-in-Motion (RIMM).
Therefore, Operating Margin % is a very important screening filter for GuruFocus. GuruFocus's Buffett-Munger screener requires that the profit margin is either consistent or expanding. The Model Portfolio of the Buffett-Munger screener has outperformed the market every year since inception in 2009.
Diamond Power Infrastructure Operating Margin % Related Terms
Diamond Power Infrastructure Operating Margin % Historical Data
* 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.
Diamond Power Infrastructure Operating Margin % Chart
NSE:DIACABS vs GEV, ETN, PH: Operating Margin % Comparison
For the Specialty Industrial Machinery subindustry, Diamond Power Infrastructure's Operating Margin %, along with its competitors' market caps and Operating 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.
Diamond Power Infrastructure Operating Margin % vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Diamond Power Infrastructure's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Diamond Power Infrastructure's Operating Margin % falls into.
Diamond Power Infrastructure Operating Margin % Calculation
Operating Margin % - also known as operating income margin, operating profit margin and return on sales (ROS) - is the ratio of Operating Income divided by net sales or Revenue, usually presented in percent.
* 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.
Diamond Power Infrastructure (NSE:DIACABS) has a Operating Margin % of 9.99% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on Diamond Power Infrastructure and its competitors. This is 287% above median its historical median of 2.58. According to the industry distribution chart, Diamond Power Infrastructure ranks #1010 out of 3038 companies in the Industrial Products industry, placing it in the top 33.2%.
Is Diamond Power Infrastructure's Operating Margin % too high?
Diamond Power Infrastructure's current Operating Margin % of 9.99% is 287% above median its 10-year median of 2.58. The Industrial Products industry median Operating Margin % is 6.53. Diamond Power Infrastructure's value of 9.99% is 53% above this industry median. Based on the distribution chart, Diamond Power Infrastructure ranks #1010 out of 3038 companies in the Industrial Products industry, which is above the industry midpoint. Overall, Diamond Power Infrastructure has a GF Score™ of 54/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Diamond Power Infrastructure's Operating Margin % compare to GEV and ETN?
According to the Industrial Products industry distribution chart, Diamond Power Infrastructure ranks #1010 out of 3038 companies for Operating Margin %. This puts Diamond Power Infrastructure in the upper half of its industry. The industry median Operating Margin % is 6.53. Diamond Power Infrastructure's value of 9.99% is 53% above this benchmark. While the company's 10-year median is 2.58 vs. the industry median of 6.53, Diamond Power Infrastructure 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 Operating Margin % for an Industrial Products company?
The median Operating Margin % among Industrial Products companies is 6.53, based on 3,038 companies in the industry. Companies in the top quartile (top 25%) have a Operating Margin % significantly above this median, while those in the bottom quartile fall well below. However, Operating Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Diamond Power Infrastructure's current Operating Margin % of 9.99% is 53% 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 Operating Margin % mean?
A high Operating Margin % can signal that a stock is expensive relative to its fundamentals. Operating margin is the ratio of total operating income to net sales. View historical data on Diamond Power Infrastructure and its competitors. For the Industrial Products industry, the median Operating Margin % is 6.53 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Diamond Power Infrastructure's current Operating Margin % is 9.99%, which is 287% above median its own 10-year median of 2.58. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Diamond Power Infrastructure stock overvalued right now?
Based on GuruFocus' analysis, Diamond Power Infrastructure (NSE:DIACABS) is currently considered Modestly Undervalued. The stock's GF Value™ is ₹264.29, compared to a current price of ₹206.28 — trading 21.9% below its estimated fair value. The current Operating Margin % is 9.99%, which is 287% above median its 10-year median of 2.58 and 53% above the Industrial Products industry median of 6.53. Diamond Power Infrastructure's overall GF Score™ is 54/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Operating Margin % calculated?
Operating Margin % is calculated from a company's financial statements. For Diamond Power Infrastructure (NSE:DIACABS), the current Operating Margin % is 9.99% 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 Diamond Power Infrastructure (NSE:DIACABS) Overvalued in 2026?
Based on GuruFocus' analysis, Diamond Power Infrastructure stock appears to be undervalued.
The current stock price of ₹206.28 is trading 21.9% below its estimated GF Value™ of ₹264.29.
GuruFocus considers Diamond Power Infrastructure to be Modestly Undervalued.
Key valuation signals for NSE:DIACABS:
Operating Margin %: 9.99% (287% above median its 10-year median of 2.58)
GF Value™: ₹264.29 vs. price of ₹206.28 (21.9% below fair value)
Industry Position: 53% above the Industrial Products median (#1010 of 3038)
No single metric tells the full story. See the NSE:DIACABS stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Diamond Power Infrastructure Ltd is a manufacturer of power transmission equipment and a turnkey service, provider. The firm produces flexible wires and cables of various voltage grades, conductors, transformers, transmission towers, control, and relay panels, isolators, and engineering, procurement, and construction. The conductors include aluminum conductors, all aluminum alloy conductors, aluminum conductor steel reinforced, aluminum conductor alloy reinforced, and high conductivity alloy conductors. The existing capacities of the firm are in aluminum and alloy rods, alloy, and aluminum conductor steel-reinforced conductors, high tension cable and specialty cables, and power transformers.
54GF Score
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