Siam Global House PCLBKK:GLOBAL +4.03%76 Operating Margin % is 9.21% as of Dec. 2025, which is 7% above its 10-year median of 8.62. GuruFocus rates BKK:GLOBAL with a GF Score™ of 76/100 and a GF Value™ of ฿13.63 (Significantly Undervalued). The stock has 3 warning signs investors should review. Among 1,128 Retail - Cyclical companies, Siam Global House PCL ranks better than 66.76% on this metric.
Siam Global House PCL operating margin has been in a 5-year decline. The average rate of decline per year is -6.4%.
The historical rank and industry rank for Siam Global House PCL's Operating Margin % or its related term are showing as below:
BKK:GLOBAL'
s Operating Margin % Range Over the Past 10 Years
Min: 6.83 Med: 8.62 Max: 11.65
Current: 6.88
BKK:GLOBAL's Operating Margin % is ranked better than 66.76% of 1128
companies
in the Retail - Cyclical industry
Industry Median: 3.905
vs BKK:GLOBAL: 6.88
Siam Global House PCL's 5-Year Average Operating Margin % Growth Rate was -6.40% per year.
Siam Global House PCL (BKK:GLOBAL) 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 Global House PCL Operating Margin % Related Terms
Siam Global House PCL Operating Margin % Historical Data
* Premium members only.
The historical data trend for Siam Global House 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:GLOBAL vs HD, LOW, FND: Operating Margin % Comparison
For the Home Improvement Retail subindustry, Siam Global House 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 Global House PCL Operating Margin % vs Retail - Cyclical Industry
For the Retail - Cyclical industry and Consumer Cyclical sector, Siam Global House PCL's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Siam Global House PCL's Operating Margin % falls into.
Siam Global House 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 Global House 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 Global House PCL (BKK:GLOBAL) has a Operating Margin % of 9.21% as of Dec. 2025. Operating margin is the ratio of total operating income to net sales. View historical data on Siam Global House PCL and its competitors. This is near median its historical median of 8.62. Over the past decade, Siam Global House PCL's Operating Margin % has ranged from 6.83 to 11.65. According to the industry distribution chart, Siam Global House PCL ranks #375 out of 1128 companies in the Retail - Cyclical industry, placing it in the top 33.2%.
Is Siam Global House PCL's Operating Margin % too high?
Siam Global House PCL's current Operating Margin % of 9.21% is near median its 10-year median of 8.62. Over the past 10 years, this metric has ranged from a low of 6.83 to a high of 11.65. The Retail - Cyclical industry median Operating Margin % is 3.91. Siam Global House PCL's value of 9.21% is 135.9% above this industry median. Based on the distribution chart, Siam Global House PCL ranks #375 out of 1128 companies in the Retail - Cyclical industry, which is above the industry midpoint. Overall, Siam Global House PCL has a GF Score™ of 76/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Siam Global House PCL's Operating Margin % compare to HD and LOW?
According to the Retail - Cyclical industry distribution chart, Siam Global House PCL ranks #375 out of 1128 companies for Operating Margin %. This puts Siam Global House PCL in the upper half of its industry. The industry median Operating Margin % is 3.91. Siam Global House PCL's value of 9.21% is 135.9% above this benchmark. Historically, Siam Global House PCL's own Operating Margin % has ranged from 6.83 to 11.65 over the past decade. While the company's 10-year median is 8.62 vs. the industry median of 3.91, Siam Global House 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 Retail - Cyclical company?
The median Operating Margin % among Retail - Cyclical companies is 3.91, based on 1,128 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 Global House PCL's current Operating Margin % of 9.21% is 135.9% 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 Global House PCL and its competitors. For the Retail - Cyclical industry, the median Operating Margin % is 3.91 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Siam Global House PCL's current Operating Margin % is 9.21%, which is near median its own 10-year median of 8.62. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Siam Global House PCL stock overvalued right now?
Based on GuruFocus' analysis, Siam Global House PCL (BKK:GLOBAL) is currently considered Significantly Undervalued. The stock's GF Value™ is ฿13.63, compared to a current price of ฿6.45 — trading 52.7% below its estimated fair value. The current Operating Margin % is 9.21%, which is near median its 10-year median of 8.62 and 135.9% above the Retail - Cyclical industry median of 3.91. Siam Global House PCL's overall GF Score™ is 76/100 with 3 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 Global House PCL (BKK:GLOBAL), the current Operating Margin % is 9.21% as of Dec. 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 Siam Global House PCL (BKK:GLOBAL) Overvalued in 2026?
Based on GuruFocus' analysis, Siam Global House PCL stock appears to be undervalued.
The current stock price of ฿6.45 is trading 52.7% below its estimated GF Value™ of ฿13.63.
GuruFocus considers Siam Global House PCL to be Significantly Undervalued.
Key valuation signals for BKK:GLOBAL:
Operating Margin %: 9.21% (near median its 10-year median of 8.62)
GF Value™: ฿13.63 vs. price of ฿6.45 (52.7% below fair value)
Industry Position: 135.9% above the Retail - Cyclical median (#375 of 1128)
No single metric tells the full story. See the BKK:GLOBAL stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Siam Global House PCL is a company engaged in distributing home construction, home improvement, and do-it-yourself products. The firm operates in various provinces in northeastern, central, eastern, and northern Thailand. Siam sells home construction and decorative products out of warehouse stores under the name of Global House. Its products include construction materials, steel products, wood products, roofing, gardening, plumbing, lighting, flooring, electronics, decorating, tools, kitchenware, and hardware.
76GF Score
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