KOSY JSCHSTC:KOS 82 Operating Margin % is 7.76% as of Mar. 2026, which is 4% above its 10-year median of 7.46. GuruFocus rates HSTC:KOS with a GF Score™ of 82/100 and a GF Value™ of ₫24,056.18. The stock has 6 warning signs investors should review. Among 1,745 Real Estate companies, KOSY JSC ranks worse than 59.54% on this metric.
Operating Margin % is calculated as Operating Income divided by its Revenue. KOSY JSC's Operating Income for the
three
months ended in Mar. 2026 was ₫19,938 Mil. KOSY JSC's Revenue for the
three
months ended in Mar. 2026 was ₫256,962 Mil. Therefore, KOSY JSC's Operating Margin % for the quarter that ended in Mar. 2026 was 7.76%.
Good Sign:
KOSY JSC operating margin is expanding. Margin expansion is usually a good sign.
The historical rank and industry rank for KOSY JSC's Operating Margin % or its related term are showing as below:
HSTC:KOS'
s Operating Margin % Range Over the Past 10 Years
Min: 1.93 Med: 7.46 Max: 8.68
Current: 8.62
HSTC:KOS's Operating Margin % is ranked worse than 59.54% of 1745
companies
in the Real Estate industry
Industry Median: 13.21
vs HSTC:KOS: 8.62
KOSY JSC's 5-Year Average Operating Margin % Growth Rate was 33.00% per year.
KOSY JSC's Operating Income for the
three
months ended in Mar. 2026 was ₫19,938 Mil.
Its Operating Income for the trailing twelve months (TTM) ended in Mar. 2026 was ₫136,639 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.
KOSY JSC Operating Margin % Related Terms
KOSY JSC Operating Margin % Historical Data
* Premium members only.
The historical data trend for KOSY JSC'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 Real Estate - Development subindustry, KOSY JSC'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.
KOSY JSC Operating Margin % vs Real Estate Industry
For the Real Estate industry and Real Estate sector, KOSY JSC's Operating Margin % distribution charts can be found below:
* The bar in red indicates where KOSY JSC'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.
KOSY JSC'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.
KOSY JSC (HSTC:KOS) has a Operating Margin % of 7.76% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on KOSY JSC and its competitors. This is near median its historical median of 7.46. Over the past decade, KOSY JSC's Operating Margin % has ranged from 1.93 to 8.68. According to the industry distribution chart, KOSY JSC ranks #1039 out of 1745 companies in the Real Estate industry, placing it in the top 59.5%.
Is KOSY JSC's Operating Margin % too high?
KOSY JSC's current Operating Margin % of 7.76% is near median its 10-year median of 7.46. Over the past 10 years, this metric has ranged from a low of 1.93 to a high of 8.68. The Real Estate industry median Operating Margin % is 13.21. KOSY JSC's value of 7.76% is 41.3% below this industry median. Based on the distribution chart, KOSY JSC ranks #1039 out of 1745 companies in the Real Estate industry, which is below the industry midpoint. Overall, KOSY JSC has a GF Score™ of 82/100, reflecting its overall financial health beyond just this single metric.
How does KOSY JSC's Operating Margin % compare to competitors?
According to the Real Estate industry distribution chart, KOSY JSC ranks #1039 out of 1745 companies for Operating Margin %. This places KOSY JSC in the lower half of its industry. The industry median Operating Margin % is 13.21. KOSY JSC's value of 7.76% is 41.3% below this benchmark. Historically, KOSY JSC's own Operating Margin % has ranged from 1.93 to 8.68 over the past decade. While the company's 10-year median is 7.46 vs. the industry median of 13.21, KOSY JSC 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 Real Estate company?
The median Operating Margin % among Real Estate companies is 13.21, based on 1,745 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. KOSY JSC's current Operating Margin % of 7.76% is 41.3% 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 KOSY JSC and its competitors. For the Real Estate industry, the median Operating Margin % is 13.21 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. KOSY JSC's current Operating Margin % is 7.76%, which is near median its own 10-year median of 7.46. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is KOSY JSC stock overvalued right now?
KOSY JSC (HSTC:KOS) has a current Operating Margin % of 7.76%. The stock's GF Value™ is ₫24,056.18, compared to a current price of ₫19,319.73 — trading 19.7% below its estimated fair value. The current Operating Margin % is 7.76%, which is near median its 10-year median of 7.46 and 41.3% below the Real Estate industry median of 13.21. KOSY JSC's overall GF Score™ is 82/100 with 6 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 KOSY JSC (HSTC:KOS), the current Operating Margin % is 7.76% 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 KOSY JSC (HSTC:KOS) Overvalued in 2026?
Based on GuruFocus' analysis, KOSY JSC stock appears to be undervalued.
The current stock price of ₫19,319.73 is trading 19.7% below its estimated GF Value™ of ₫24,056.18.
Key valuation signals for HSTC:KOS:
Operating Margin %: 7.76% (near median its 10-year median of 7.46)
GF Value™: ₫24,056.18 vs. price of ₫19,319.73 (19.7% below fair value)
Industry Position: 41.3% below the Real Estate median (#1039 of 1745)
No single metric tells the full story. See the HSTC:KOS stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
KOSY JSC operates in the real estate business, including land use rights that are owned, used, or leased, specifically real estate trading, and the wholesale of construction materials and other installation equipment, specifically trading of construction materials. The Company operates through real estate, trading services, and hydroelectric segments, with trading services generating maximum revenue. Its revenue includes income from real estate transfers, construction materials, and asset leasing.
82GF Score
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