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Siamraj PCLBKK:SR -2.63%22 Operating Margin % is 2.10% as of Mar. 2026, which is 19% above its 10-year median of 1.77. GuruFocus rates BKK:SR with a GF Score™ of 22/100 and a GF Value™ of ฿0.34 (Fairly Valued). The stock has 5 warning signs investors should review. Among 549 Conglomerates companies, Siamraj PCL ranks worse than 69.03% on this metric.
Operating Margin % is calculated as Operating Income divided by its Revenue. Siamraj PCL's Operating Income for the
three
months ended in Mar. 2026 was ฿3.6 Mil. Siamraj PCL's Revenue for the
three
months ended in Mar. 2026 was ฿173.4 Mil. Therefore, Siamraj PCL's Operating Margin % for the quarter that ended in Mar. 2026 was 2.10%.
The historical rank and industry rank for Siamraj PCL's Operating Margin % or its related term are showing as below:
BKK:SR'
s Operating Margin % Range Over the Past 10 Years
Min: -9.77 Med: 1.77 Max: 5.46
Current: 2.32
BKK:SR's Operating Margin % is ranked worse than 69.03% of 549
companies
in the Conglomerates industry
Industry Median: 5.79
vs BKK:SR: 2.32
Siamraj PCL's 5-Year Average Operating Margin % Growth Rate was 0.00% per year.
Siamraj PCL's Operating Income for the
three
months ended in Mar. 2026 was ฿3.6 Mil.
Its Operating Income for the trailing twelve months (TTM) ended in Mar. 2026 was ฿14.5 Mil.
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.
Siamraj PCL Operating Margin % Related Terms
Siamraj PCL Operating Margin % Historical Data
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The historical data trend for Siamraj PCL'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.
For the Conglomerates subindustry, Siamraj 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.
Siamraj PCL Operating Margin % vs Conglomerates Industry
For the Conglomerates industry and Industrials sector, Siamraj PCL's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Siamraj 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.
Siamraj 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.
Siamraj PCL (BKK:SR) has a Operating Margin % of 2.10% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on Siamraj PCL and its competitors. This is 19% above median its historical median of 1.77. According to the industry distribution chart, Siamraj PCL ranks #379 out of 549 companies in the Conglomerates industry, placing it in the top 69%.
Is Siamraj PCL's Operating Margin % too high?
Siamraj PCL's current Operating Margin % of 2.10% is 19% above median its 10-year median of 1.77. The Conglomerates industry median Operating Margin % is 5.79. Siamraj PCL's value of 2.10% is 63.7% below this industry median. Based on the distribution chart, Siamraj PCL ranks #379 out of 549 companies in the Conglomerates industry, which is below the industry midpoint. Overall, Siamraj PCL has a GF Score™ of 22/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Siamraj PCL's Operating Margin % compare to HON and MMM?
According to the Conglomerates industry distribution chart, Siamraj PCL ranks #379 out of 549 companies for Operating Margin %. This places Siamraj PCL in the lower half of its industry. The industry median Operating Margin % is 5.79. Siamraj PCL's value of 2.10% is 63.7% below this benchmark. While the company's 10-year median is 1.77 vs. the industry median of 5.79, Siamraj PCL has consistently been below 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 Conglomerates company?
The median Operating Margin % among Conglomerates companies is 5.79, based on 549 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. Siamraj PCL's current Operating Margin % of 2.10% is 63.7% below 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 Siamraj PCL and its competitors. For the Conglomerates industry, the median Operating Margin % is 5.79 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Siamraj PCL's current Operating Margin % is 2.10%, which is 19% above median its own 10-year median of 1.77. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Siamraj PCL stock overvalued right now?
Based on GuruFocus' analysis, Siamraj PCL (BKK:SR) is currently considered Fairly Valued. The stock's GF Value™ is ฿0.34, compared to a current price of ฿0.37 — trading 8.8% above its estimated fair value. The current Operating Margin % is 2.10%, which is 19% above median its 10-year median of 1.77 and 63.7% below the Conglomerates industry median of 5.79. Siamraj PCL's overall GF Score™ is 22/100 with 5 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 Siamraj PCL (BKK:SR), the current Operating Margin % is 2.10% 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 Siamraj PCL (BKK:SR) Overvalued in 2026?
Based on GuruFocus' analysis, Siamraj PCL stock appears to be overvalued.
The current stock price of ฿0.37 is trading 8.8% above its estimated GF Value™ of ฿0.34.
GuruFocus considers Siamraj PCL to be Fairly Valued.
Key valuation signals for BKK:SR:
Operating Margin %: 2.10% (19% above median its 10-year median of 1.77)
GF Value™: ฿0.34 vs. price of ฿0.37 (8.8% above fair value)
Industry Position: 63.7% below the Conglomerates median (#379 of 549)
No single metric tells the full story. See the BKK:SR stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Siamraj PCL is engaged in various business activities. Along with its subsidiaries, the company operates in the following reportable segments: Industrial pumps, Natural gas metering and transmission systems, The Metering Pipeline Sales and Services Business Field of flow measurement business, and Other business, which includes 1) Alternative energy and 2) Parking building management. The majority of revenue is generated from the Industrial pumps segment.
22GF Score
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