The Southern Rubber Industry JSC (STC:CSM) Operating Margin %: 4.03% (As of Mar. 2026) — Near Median


STC:CSM The Southern Rubber Industry JSC STC:CSM
66 GF Score
Price ₫12,800.00
GF Value ₫12,389.12
Valuation Fairly Valued
! 6 Warning Signs
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What is The Southern Rubber Industry JSC Operating Margin %?

The Southern Rubber Industry JSC STC:CSM 66 Operating Margin % is 4.03% as of Mar. 2026, which is 6% below its 10-year median of 4.30. GuruFocus rates STC:CSM with a GF Score™ of 66/100 and a GF Value™ of ₫12,389.12 (Fairly Valued). The stock has 6 warning signs investors should review. Among 1,325 Vehicles & Parts companies, The Southern Rubber Industry JSC ranks worse than 64.38% on this metric.

Operating Margin % is calculated as Operating Income divided by its Revenue. The Southern Rubber Industry JSC's Operating Income for the three months ended in Mar. 2026 was ₫44,518 Mil. The Southern Rubber Industry JSC's Revenue for the three months ended in Mar. 2026 was ₫1,105,282 Mil. Therefore, The Southern Rubber Industry JSC's Operating Margin % for the quarter that ended in Mar. 2026 was 4.03%.

Warning Sign:

The Southern Rubber Industry JSC operating margin has been in a 5-year decline. The average rate of decline per year is -22.1%.

The historical rank and industry rank for The Southern Rubber Industry JSC's Operating Margin % or its related term are showing as below:

STC:CSM' s Operating Margin % Range Over the Past 10 Years
Min: 1.09   Med: 4.3   Max: 12.19
Current: 3.1


STC:CSM's Operating Margin % is ranked worse than
64.38% of 1325 companies
in the Vehicles & Parts industry
Industry Median: 4.86 vs STC:CSM: 3.10

The Southern Rubber Industry JSC's 5-Year Average Operating Margin % Growth Rate was -22.10% per year.

The Southern Rubber Industry JSC's Operating Income for the three months ended in Mar. 2026 was ₫44,518 Mil. Its Operating Income for the trailing twelve months (TTM) ended in Mar. 2026 was ₫129,259 Mil.


The Southern Rubber Industry JSC  (STC:CSM) 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 Nokia’s 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.


The Southern Rubber Industry JSC Operating Margin % Related Terms


The Southern Rubber Industry JSC Operating Margin % Historical Data

* Premium members only.

The historical data trend for The Southern Rubber Industry 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.

The Southern Rubber Industry JSC Operating Margin % Chart

The Southern Rubber Industry JSC Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Operating Margin %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 3.48 4.57 3.41 2.84 1.09

The Southern Rubber Industry JSC Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Operating Margin % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 2.60 2.20 4.09 1.98 4.03

STC:CSM vs ORLY, AZO, BWA: Operating Margin % Comparison

For the Auto Parts subindustry, The Southern Rubber Industry 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.


The Southern Rubber Industry JSC Operating Margin % vs Vehicles & Parts Industry

For the Vehicles & Parts industry and Consumer Cyclical sector, The Southern Rubber Industry JSC's Operating Margin % distribution charts can be found below:

* The bar in red indicates where The Southern Rubber Industry JSC's Operating Margin % falls into.


STC:CSM
66GF Score
The Southern Rubber Industry JSC STC:CSM
Operating Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
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The Southern Rubber Industry JSC 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.

The Southern Rubber Industry JSC's Operating Margin % for the fiscal year that ended in Dec. 2025 is calculated as

Operating Margin %=Operating Income (A: Dec. 2025 ) / Revenue (A: Dec. 2025 )
=45158.844 / 4142874.772
=1.09 %

The Southern Rubber Industry JSC's Operating Margin % for the quarter that ended in Mar. 2026 is calculated as

Operating Margin %=Operating Income (Q: Mar. 2026 ) / Revenue (Q: Mar. 2026 )
=44518.257 / 1105281.531
=4.03 %

* 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.

Frequently Asked Questions Learn more about Operating Margin % →
What does a Operating Margin % of 4.03% mean?
The Southern Rubber Industry JSC (STC:CSM) has a Operating Margin % of 4.03% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on The Southern Rubber Industry JSC and its competitors. This is near median its historical median of 4.30. Over the past decade, The Southern Rubber Industry JSC's Operating Margin % has ranged from 1.09 to 12.19. According to the industry distribution chart, The Southern Rubber Industry JSC ranks #853 out of 1325 companies in the Vehicles & Parts industry, placing it in the top 64.4%.
Is The Southern Rubber Industry JSC's Operating Margin % too high?
The Southern Rubber Industry JSC's current Operating Margin % of 4.03% is near median its 10-year median of 4.30. Over the past 10 years, this metric has ranged from a low of 1.09 to a high of 12.19. The Vehicles & Parts industry median Operating Margin % is 4.86. The Southern Rubber Industry JSC's value of 4.03% is 17.1% below this industry median. Based on the distribution chart, The Southern Rubber Industry JSC ranks #853 out of 1325 companies in the Vehicles & Parts industry, which is below the industry midpoint. Overall, The Southern Rubber Industry JSC has a GF Score™ of 66/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does The Southern Rubber Industry JSC's Operating Margin % compare to ORLY and AZO?
According to the Vehicles & Parts industry distribution chart, The Southern Rubber Industry JSC ranks #853 out of 1325 companies for Operating Margin %. This places The Southern Rubber Industry JSC in the lower half of its industry. The industry median Operating Margin % is 4.86. The Southern Rubber Industry JSC's value of 4.03% is 17.1% below this benchmark. Historically, The Southern Rubber Industry JSC's own Operating Margin % has ranged from 1.09 to 12.19 over the past decade. While the company's 10-year median is 4.30 vs. the industry median of 4.86, The Southern Rubber Industry 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 Vehicles & Parts company?
The median Operating Margin % among Vehicles & Parts companies is 4.86, based on 1,325 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. The Southern Rubber Industry JSC's current Operating Margin % of 4.03% is 17.1% 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 The Southern Rubber Industry JSC and its competitors. For the Vehicles & Parts industry, the median Operating Margin % is 4.86 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. The Southern Rubber Industry JSC's current Operating Margin % is 4.03%, which is near median its own 10-year median of 4.30. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is The Southern Rubber Industry JSC stock overvalued right now?
Based on GuruFocus' analysis, The Southern Rubber Industry JSC (STC:CSM) is currently considered Fairly Valued. The stock's GF Value™ is ₫12,389.12, compared to a current price of ₫12,800.00 — trading 3.3% above its estimated fair value. The current Operating Margin % is 4.03%, which is near median its 10-year median of 4.30 and 17.1% below the Vehicles & Parts industry median of 4.86. The Southern Rubber Industry JSC's overall GF Score™ is 66/100 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 The Southern Rubber Industry JSC (STC:CSM), the current Operating Margin % is 4.03% 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 The Southern Rubber Industry JSC (STC:CSM) Overvalued in 2026?

Based on GuruFocus' analysis, The Southern Rubber Industry JSC stock appears to be overvalued. The current stock price of ₫12,800.00 is trading 3.3% above its estimated GF Value™ of ₫12,389.12. GuruFocus considers The Southern Rubber Industry JSC to be Fairly Valued.

Key valuation signals for STC:CSM:

  • Operating Margin %: 4.03% (near median its 10-year median of 4.30)
  • GF Value™: ₫12,389.12 vs. price of ₫12,800.00 (3.3% above fair value)
  • GF Score™: 66/100 with 6 warning signs
  • Industry Position: 17.1% below the Vehicles & Parts median (#853 of 1325)

No single metric tells the full story. See the STC:CSM stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


The Southern Rubber Industry JSC Business Description

Address 180 Nguyen Thi Minh Khai, Ward 6, District 3, Ho Chi Minh, VNM
The Southern Rubber Industry JSC is a Vietnam-based manufacturer and seller of tires and tubes. The company offers trucks and light trucks tires and tubes, motorcycle tires and tubes, passenger car radial tires, bicycle tires and tubes, industrial tires and tubes, electric vehicle tires and tubes, specific tires and tubes, and other products. The organization has a business presence in Vietnam and other countries.
66GF Score

Get the complete analysis for STC:CSM

Operating Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

₫12,800.00
Price
₫12,389.12
GF Value