Hoa Sen GroupSTC:HSG -0.43%82 Operating Margin % is 2.63% as of Mar. 2026, which is 27% below its 10-year median of 3.58. GuruFocus rates STC:HSG with a GF Score™ of 82/100 and a GF Value™ of ₫13,645.00 (Modestly Undervalued). The stock has 7 warning signs investors should review. Among 615 Steel companies, Hoa Sen Group ranks worse than 58.05% on this metric.
Operating Margin % is calculated as Operating Income divided by its Revenue. Hoa Sen Group's Operating Income for the
three
months ended in Mar. 2026 was ₫236,265 Mil. Hoa Sen Group's Revenue for the
three
months ended in Mar. 2026 was ₫8,967,069 Mil. Therefore, Hoa Sen Group's Operating Margin % for the quarter that ended in Mar. 2026 was 2.63%.
Warning Sign:
Hoa Sen Group operating margin has been in a 5-year decline. The average rate of decline per year is -32.5%.
The historical rank and industry rank for Hoa Sen Group's Operating Margin % or its related term are showing as below:
STC:HSG'
s Operating Margin % Range Over the Past 10 Years
Min: 0.56 Med: 3.58 Max: 11.94
Current: 2
STC:HSG's Operating Margin % is ranked worse than 58.05% of 615
companies
in the Steel industry
Industry Median: 2.99
vs STC:HSG: 2.00
Hoa Sen Group's 5-Year Average Operating Margin % Growth Rate was -32.50% per year.
Hoa Sen Group's Operating Income for the
three
months ended in Mar. 2026 was ₫236,265 Mil.
Its Operating Income for the trailing twelve months (TTM) ended in Mar. 2026 was ₫705,050 Mil.
Warning Sign:
Hoa Sen Group has recorded a loss in operating income at least once over the past 3 years.
Hoa Sen Group (STC:HSG) 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.
Hoa Sen Group Operating Margin % Related Terms
Hoa Sen Group Operating Margin % Historical Data
* Premium members only.
The historical data trend for Hoa Sen Group'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.
STC:HSG vs NUE, STLD, RS: Operating Margin % Comparison
For the Steel subindustry, Hoa Sen Group'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.
Hoa Sen Group Operating Margin % vs Steel Industry
For the Steel industry and Basic Materials sector, Hoa Sen Group's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Hoa Sen Group'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.
Hoa Sen Group's Operating Margin % for the fiscal year that ended in Sep. 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.
Hoa Sen Group (STC:HSG) has a Operating Margin % of 2.63% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on Hoa Sen Group and its competitors. This is 27% below median its historical median of 3.58. Over the past decade, Hoa Sen Group's Operating Margin % has ranged from 0.56 to 11.94. According to the industry distribution chart, Hoa Sen Group ranks #357 out of 615 companies in the Steel industry, placing it in the top 58%.
Is Hoa Sen Group's Operating Margin % too high?
Hoa Sen Group's current Operating Margin % of 2.63% is 27% below median its 10-year median of 3.58. Over the past 10 years, this metric has ranged from a low of 0.56 to a high of 11.94. The Steel industry median Operating Margin % is 2.99. Hoa Sen Group's value of 2.63% is 12% below this industry median. Based on the distribution chart, Hoa Sen Group ranks #357 out of 615 companies in the Steel industry, which is below the industry midpoint. Overall, Hoa Sen Group has a GF Score™ of 82/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Hoa Sen Group's Operating Margin % compare to NUE and STLD?
According to the Steel industry distribution chart, Hoa Sen Group ranks #357 out of 615 companies for Operating Margin %. This places Hoa Sen Group in the lower half of its industry. The industry median Operating Margin % is 2.99. Hoa Sen Group's value of 2.63% is 12% below this benchmark. Historically, Hoa Sen Group's own Operating Margin % has ranged from 0.56 to 11.94 over the past decade. While the company's 10-year median is 3.58 vs. the industry median of 2.99, Hoa Sen Group 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 Steel company?
The median Operating Margin % among Steel companies is 2.99, based on 615 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. Hoa Sen Group's current Operating Margin % of 2.63% is 12% 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 Hoa Sen Group and its competitors. For the Steel industry, the median Operating Margin % is 2.99 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Hoa Sen Group's current Operating Margin % is 2.63%, which is 27% below median its own 10-year median of 3.58. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Hoa Sen Group stock overvalued right now?
Based on GuruFocus' analysis, Hoa Sen Group (STC:HSG) is currently considered Modestly Undervalued. The stock's GF Value™ is ₫13,645.00, compared to a current price of ₫11,700.00 — trading 14.3% below its estimated fair value. The current Operating Margin % is 2.63%, which is 27% below median its 10-year median of 3.58 and 12% below the Steel industry median of 2.99. Hoa Sen Group's overall GF Score™ is 82/100 with 7 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 Hoa Sen Group (STC:HSG), the current Operating Margin % is 2.63% 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 Hoa Sen Group (STC:HSG) Overvalued in 2026?
Based on GuruFocus' analysis, Hoa Sen Group stock appears to be undervalued.
The current stock price of ₫11,700.00 is trading 14.3% below its estimated GF Value™ of ₫13,645.00.
GuruFocus considers Hoa Sen Group to be Modestly Undervalued.
Key valuation signals for STC:HSG:
Operating Margin %: 2.63% (27% below median its 10-year median of 3.58)
GF Value™: ₫13,645.00 vs. price of ₫11,700.00 (14.3% below fair value)
Industry Position: 12% below the Steel median (#357 of 615)
No single metric tells the full story. See the STC:HSG stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Hoa Sen Group is engaged in the production of roofing sheets made of galvanized steel, zinc-aluminum alloy, painted galvanized steel, and other alloy types; steel purlins and galvanized purlins; black steel pipes, galvanized steel pipes, alloy-coated steel pipes; galvanized steel mesh, galvanized steel wire, and other steel wire products; and cold rolled steel coils. The Group is also involved in the production and sale of construction materials, including plastic pipes and plastic pipe accessories, buying and selling construction materials, production materials, and consumer goods, warehouse leasing and cargo transportation services, industrial and civil construction, leasing of machinery, equipment, and other tangible items, and hotel business, catering services, and commercial centers.
82GF Score
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