Interroyal Engineering PCLBKK:IROYAL -0.43%22 Operating Margin % is 38.02% as of Mar. 2026, which is 11% above its 10-year median of 34.10. GuruFocus rates BKK:IROYAL with a GF Score™ of 22/100. The stock has 2 warning signs investors should review. Among 3,026 Industrial Products companies, Interroyal Engineering PCL ranks better than 99.31% on this metric.
The historical rank and industry rank for Interroyal Engineering PCL's Operating Margin % or its related term are showing as below:
BKK:IROYAL'
s Operating Margin % Range Over the Past 10 Years
Min: 30.85 Med: 34.1 Max: 40.95
Current: 38.22
BKK:IROYAL's Operating Margin % is ranked better than 99.31% of 3026
companies
in the Industrial Products industry
Industry Median: 6.53
vs BKK:IROYAL: 38.22
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.
Interroyal Engineering PCL Operating Margin % Related Terms
Interroyal Engineering PCL 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.
BKK:IROYAL vs GEV, ETN, PH: Operating Margin % Comparison
For the Specialty Industrial Machinery subindustry, Interroyal Engineering PCL'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.
Interroyal Engineering PCL Operating Margin % vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Interroyal Engineering PCL's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Interroyal Engineering PCL'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.
Interroyal Engineering PCL's Operating Margin % for the fiscal year that ended in Dec. 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.
Interroyal Engineering PCL (BKK:IROYAL) has a Operating Margin % of 38.02% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on Interroyal Engineering PCL and its competitors. This is 11% above median its historical median of 34.10. Over the past decade, Interroyal Engineering PCL's Operating Margin % has ranged from 30.85 to 40.95. According to the industry distribution chart, Interroyal Engineering PCL ranks #21 out of 3026 companies in the Industrial Products industry, placing it in the top 0.7%.
Is Interroyal Engineering PCL's Operating Margin % too high?
Interroyal Engineering PCL's current Operating Margin % of 38.02% is 11% above median its 10-year median of 34.10. Over the past 10 years, this metric has ranged from a low of 30.85 to a high of 40.95. The Industrial Products industry median Operating Margin % is 6.53. Interroyal Engineering PCL's value of 38.02% is 482.2% above this industry median. Based on the distribution chart, Interroyal Engineering PCL ranks #21 out of 3026 companies in the Industrial Products industry, which is in the top quartile — a strong position relative to peers. Overall, Interroyal Engineering PCL has a GF Score™ of 22/100, reflecting its overall financial health beyond just this single metric.
How does Interroyal Engineering PCL's Operating Margin % compare to GEV and ETN?
According to the Industrial Products industry distribution chart, Interroyal Engineering PCL ranks #21 out of 3026 companies for Operating Margin %. This places Interroyal Engineering PCL in the top 1% of its industry — outperforming the majority of peers. The industry median Operating Margin % is 6.53. Interroyal Engineering PCL's value of 38.02% is 482.2% above this benchmark. Historically, Interroyal Engineering PCL's own Operating Margin % has ranged from 30.85 to 40.95 over the past decade. While the company's 10-year median is 34.10 vs. the industry median of 6.53, Interroyal Engineering PCL 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 3,026 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. Interroyal Engineering PCL's current Operating Margin % of 38.02% is 482.2% 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 Interroyal Engineering PCL 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. Interroyal Engineering PCL's current Operating Margin % is 38.02%, which is 11% above median its own 10-year median of 34.10. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Interroyal Engineering PCL stock overvalued right now?
Interroyal Engineering PCL (BKK:IROYAL) has a current Operating Margin % of 38.02%. The current Operating Margin % is 38.02%, which is 11% above median its 10-year median of 34.10 and 482.2% above the Industrial Products industry median of 6.53. Interroyal Engineering PCL's overall GF Score™ is 22/100 with 2 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 Interroyal Engineering PCL (BKK:IROYAL), the current Operating Margin % is 38.02% 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.
Interroyal Engineering PCL provides comprehensive engineering solutions both in Thailand and internationally including the procurement, design, installation, and maintenance of machinery and equipment for various industries which are divided into: Energy; Communications, Networks, and Intelligent Technology; Petroleum and Natural Gas Business Support; Environmental Management and Future Energy Development. The group operates in two business segments: revenues from sales; and revenues from sales with installation.
22GF Score
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