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Sonu InfratechNSE:SONUINFRA +4.91%68 Operating Margin % is 14.88% as of Sep. 2025, which is 104% above its 10-year median of 7.31. GuruFocus rates NSE:SONUINFRA with a GF Score™ of 68/100 and a GF Value™ of ₹161.27 (Possible Value Trap). The stock has 6 warning signs investors should review. Among 1,772 Construction companies, Sonu Infratech ranks better than 78.33% on this metric.
Sonu Infratech Ltd operating margin is expanding. Margin expansion is usually a good sign.
The historical rank and industry rank for Sonu Infratech's Operating Margin % or its related term are showing as below:
NSE:SONUINFRA'
s Operating Margin % Range Over the Past 10 Years
Min: 4.44 Med: 7.31 Max: 12.38
Current: 12.38
NSE:SONUINFRA's Operating Margin % is ranked better than 78.33% of 1772
companies
in the Construction industry
Industry Median: 5.9
vs NSE:SONUINFRA: 12.38
Sonu Infratech's 5-Year Average Operating Margin % Growth Rate was 12.60% per year.
Sonu Infratech (NSE:SONUINFRA) 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.
Sonu Infratech Operating Margin % Related Terms
Sonu Infratech Operating Margin % Historical Data
* Premium members only.
The historical data trend for Sonu Infratech's Operating 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.
NSE:SONUINFRA vs PWR, FIX, EME: Operating Margin % Comparison
For the Engineering & Construction subindustry, Sonu Infratech'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.
Sonu Infratech Operating Margin % vs Construction Industry
For the Construction industry and Industrials sector, Sonu Infratech's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Sonu Infratech's Operating Margin % falls into.
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.
Sonu Infratech's Operating Margin % for the fiscal year that ended in Mar. 2025 is calculated as
* 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.
Sonu Infratech (NSE:SONUINFRA) has a Operating Margin % of 14.88% as of Sep. 2025. Operating margin is the ratio of total operating income to net sales. View historical data on Sonu Infratech and its competitors. This is 104% above median its historical median of 7.31. Over the past decade, Sonu Infratech's Operating Margin % has ranged from 4.44 to 12.38. According to the industry distribution chart, Sonu Infratech ranks #384 out of 1772 companies in the Construction industry, placing it in the top 21.7%.
Is Sonu Infratech's Operating Margin % too high?
Sonu Infratech's current Operating Margin % of 14.88% is 104% above median its 10-year median of 7.31. Over the past 10 years, this metric has ranged from a low of 4.44 to a high of 12.38. The Construction industry median Operating Margin % is 5.90. Sonu Infratech's value of 14.88% is 152.2% above this industry median. Based on the distribution chart, Sonu Infratech ranks #384 out of 1772 companies in the Construction industry, which is in the top quartile — a strong position relative to peers. Overall, Sonu Infratech has a GF Score™ of 68/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Sonu Infratech's Operating Margin % compare to PWR and FIX?
According to the Construction industry distribution chart, Sonu Infratech ranks #384 out of 1772 companies for Operating Margin %. This places Sonu Infratech in the top 22% of its industry — outperforming the majority of peers. The industry median Operating Margin % is 5.90. Sonu Infratech's value of 14.88% is 152.2% above this benchmark. Historically, Sonu Infratech's own Operating Margin % has ranged from 4.44 to 12.38 over the past decade. While the company's 10-year median is 7.31 vs. the industry median of 5.90, Sonu Infratech 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 a Construction company?
The median Operating Margin % among Construction companies is 5.90, based on 1,772 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. Sonu Infratech's current Operating Margin % of 14.88% is 152.2% 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 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 Sonu Infratech and its competitors. For the Construction industry, the median Operating Margin % is 5.90 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sonu Infratech's current Operating Margin % is 14.88%, which is 104% above median its own 10-year median of 7.31. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sonu Infratech stock overvalued right now?
Based on GuruFocus' analysis, Sonu Infratech (NSE:SONUINFRA) is currently considered Possible Value Trap. The stock's GF Value™ is ₹161.27, compared to a current price of ₹38.45 — trading 76.2% below its estimated fair value. The current Operating Margin % is 14.88%, which is 104% above median its 10-year median of 7.31 and 152.2% above the Construction industry median of 5.90. Sonu Infratech's overall GF Score™ is 68/100 with 6 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 Sonu Infratech (NSE:SONUINFRA), the current Operating Margin % is 14.88% as of Sep. 2025. 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 Sonu Infratech (NSE:SONUINFRA) Overvalued in 2026?
Based on GuruFocus' analysis, Sonu Infratech stock appears to be undervalued.
The current stock price of ₹38.45 is trading 76.2% below its estimated GF Value™ of ₹161.27.
GuruFocus considers Sonu Infratech to be Possible Value Trap.
Key valuation signals for NSE:SONUINFRA:
Operating Margin %: 14.88% (104% above median its 10-year median of 7.31)
GF Value™: ₹161.27 vs. price of ₹38.45 (76.2% below fair value)
Industry Position: 152.2% above the Construction median (#384 of 1772)
No single metric tells the full story. See the NSE:SONUINFRA stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Sonu Infratech Ltd is engaged in the business of civil construction services, such as piling, excavation, road preparation, land leveling, structural painting, building construction in nature of commercial and industrial projects, and mechanical scaffolding services including structuring and piping. The company operates and generates revenue within India.
68GF Score
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