Siam City Cement PCLBKK:SCCC +0.69%77 Operating Margin % is 14.40% as of Mar. 2026, which is 31% above its 10-year median of 11.03. GuruFocus rates BKK:SCCC with a GF Score™ of 77/100 and a GF Value™ of ฿159.15 (Fairly Valued). The stock has 4 warning signs investors should review. Among 404 Building Materials companies, Siam City Cement PCL ranks better than 66.58% on this metric.
Siam City Cement PCL operating margin has been in a 5-year decline. The average rate of decline per year is -1.8%.
The historical rank and industry rank for Siam City Cement PCL's Operating Margin % or its related term are showing as below:
BKK:SCCC'
s Operating Margin % Range Over the Past 10 Years
Min: 6.63 Med: 11.03 Max: 14.62
Current: 11.62
BKK:SCCC's Operating Margin % is ranked better than 66.58% of 404
companies
in the Building Materials industry
Industry Median: 7.65
vs BKK:SCCC: 11.62
Siam City Cement PCL's 5-Year Average Operating Margin % Growth Rate was -1.80% per year.
Siam City Cement PCL (BKK:SCCC) 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.
Siam City Cement PCL Operating Margin % Related Terms
Siam City Cement PCL Operating Margin % Historical Data
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The historical data trend for Siam City Cement 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.
BKK:SCCC vs CRH, VMC, MLM: Operating Margin % Comparison
For the Building Materials subindustry, Siam City Cement 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.
Siam City Cement PCL Operating Margin % vs Building Materials Industry
For the Building Materials industry and Basic Materials sector, Siam City Cement PCL's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Siam City Cement PCL's Operating Margin % falls into.
Siam City Cement PCL 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.
Siam City Cement 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.
Siam City Cement PCL (BKK:SCCC) has a Operating Margin % of 14.40% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on Siam City Cement PCL and its competitors. This is 31% above median its historical median of 11.03. Over the past decade, Siam City Cement PCL's Operating Margin % has ranged from 6.63 to 14.62. According to the industry distribution chart, Siam City Cement PCL ranks #135 out of 404 companies in the Building Materials industry, placing it in the top 33.4%.
Is Siam City Cement PCL's Operating Margin % too high?
Siam City Cement PCL's current Operating Margin % of 14.40% is 31% above median its 10-year median of 11.03. Over the past 10 years, this metric has ranged from a low of 6.63 to a high of 14.62. The Building Materials industry median Operating Margin % is 7.65. Siam City Cement PCL's value of 14.40% is 88.2% above this industry median. Based on the distribution chart, Siam City Cement PCL ranks #135 out of 404 companies in the Building Materials industry, which is above the industry midpoint. Overall, Siam City Cement PCL has a GF Score™ of 77/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Siam City Cement PCL's Operating Margin % compare to CRH and VMC?
According to the Building Materials industry distribution chart, Siam City Cement PCL ranks #135 out of 404 companies for Operating Margin %. This puts Siam City Cement PCL in the upper half of its industry. The industry median Operating Margin % is 7.65. Siam City Cement PCL's value of 14.40% is 88.2% above this benchmark. Historically, Siam City Cement PCL's own Operating Margin % has ranged from 6.63 to 14.62 over the past decade. While the company's 10-year median is 11.03 vs. the industry median of 7.65, Siam City Cement 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 a Building Materials company?
The median Operating Margin % among Building Materials companies is 7.65, based on 404 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. Siam City Cement PCL's current Operating Margin % of 14.40% is 88.2% 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 Siam City Cement PCL and its competitors. For the Building Materials industry, the median Operating Margin % is 7.65 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Siam City Cement PCL's current Operating Margin % is 14.40%, which is 31% above median its own 10-year median of 11.03. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Siam City Cement PCL stock overvalued right now?
Based on GuruFocus' analysis, Siam City Cement PCL (BKK:SCCC) is currently considered Fairly Valued. The stock's GF Value™ is ฿159.15, compared to a current price of ฿146.50 — trading 7.9% below its estimated fair value. The current Operating Margin % is 14.40%, which is 31% above median its 10-year median of 11.03 and 88.2% above the Building Materials industry median of 7.65. Siam City Cement PCL's overall GF Score™ is 77/100 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 Siam City Cement PCL (BKK:SCCC), the current Operating Margin % is 14.40% 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 Siam City Cement PCL (BKK:SCCC) Overvalued in 2026?
Based on GuruFocus' analysis, Siam City Cement PCL stock appears to be undervalued.
The current stock price of ฿146.50 is trading 7.9% below its estimated GF Value™ of ฿159.15.
GuruFocus considers Siam City Cement PCL to be Fairly Valued.
Key valuation signals for BKK:SCCC:
Operating Margin %: 14.40% (31% above median its 10-year median of 11.03)
GF Value™: ฿159.15 vs. price of ฿146.50 (7.9% below fair value)
Industry Position: 88.2% above the Building Materials median (#135 of 404)
No single metric tells the full story. See the BKK:SCCC stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Siam City Cement PCL is a Thailand-based company that produces cement-based building materials, wood replacement products, and lightweight concrete blocks through its subsidiaries. The company is composed of five segments: Cement, Concrete & Aggregate, Waste management and Industrial services, Light Building Materials, and Energy. It generates the majority of its revenue from the Cement segment. It sells various cement types, namely Portland, Hydraulic, Mixed, and Masonry, that serve various building, bricklaying, and plastering purposes.
77GF Score
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