Thien Long GroupSTC:TLG -0.40%99 Operating Margin % is 14.67% as of Mar. 2026, which is 16% above its 10-year median of 12.62. GuruFocus rates STC:TLG with a GF Score™ of 99/100 and a GF Value™ of ₫56,317.01 (Modestly Undervalued). The stock has 3 warning signs investors should review. Among 3,038 Industrial Products companies, Thien Long Group ranks better than 75.61% on this metric.
Thien Long Group Corp operating margin is expanding. Margin expansion is usually a good sign.
The historical rank and industry rank for Thien Long Group's Operating Margin % or its related term are showing as below:
STC:TLG'
s Operating Margin % Range Over the Past 10 Years
Min: 10.69 Med: 12.62 Max: 14.6
Current: 12.56
STC:TLG's Operating Margin % is ranked better than 75.61% of 3038
companies
in the Industrial Products industry
Industry Median: 6.53
vs STC:TLG: 12.56
Thien Long Group's 5-Year Average Operating Margin % Growth Rate was 2.70% per year.
Thien Long Group (STC:TLG) 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.
Thien Long Group Operating Margin % Related Terms
Thien Long Group Operating Margin % Historical Data
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The historical data trend for Thien Long 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.
Thien Long Group Operating Margin % Competitor Comparison
For the Business Equipment & Supplies subindustry, Thien Long 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.
Thien Long Group Operating Margin % vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Thien Long Group's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Thien Long 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.
Thien Long Group'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.
Thien Long Group (STC:TLG) has a Operating Margin % of 14.67% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on Thien Long Group and its competitors. This is 16% above median its historical median of 12.62. Over the past decade, Thien Long Group's Operating Margin % has ranged from 10.69 to 14.60. According to the industry distribution chart, Thien Long Group ranks #741 out of 3038 companies in the Industrial Products industry, placing it in the top 24.4%.
Is Thien Long Group's Operating Margin % too high?
Thien Long Group's current Operating Margin % of 14.67% is 16% above median its 10-year median of 12.62. Over the past 10 years, this metric has ranged from a low of 10.69 to a high of 14.60. The Industrial Products industry median Operating Margin % is 6.53. Thien Long Group's value of 14.67% is 124.7% above this industry median. Based on the distribution chart, Thien Long Group ranks #741 out of 3038 companies in the Industrial Products industry, which is in the top quartile — a strong position relative to peers. Overall, Thien Long Group has a GF Score™ of 99/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Thien Long Group's Operating Margin % compare to competitors?
According to the Industrial Products industry distribution chart, Thien Long Group ranks #741 out of 3038 companies for Operating Margin %. This places Thien Long Group in the top 24% of its industry — outperforming the majority of peers. The industry median Operating Margin % is 6.53. Thien Long Group's value of 14.67% is 124.7% above this benchmark. Historically, Thien Long Group's own Operating Margin % has ranged from 10.69 to 14.60 over the past decade. While the company's 10-year median is 12.62 vs. the industry median of 6.53, Thien Long Group 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 an Industrial Products company?
The median Operating Margin % among Industrial Products companies is 6.53, based on 3,038 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. Thien Long Group's current Operating Margin % of 14.67% is 124.7% 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 Thien Long Group and its competitors. For the Industrial Products industry, the median Operating Margin % is 6.53 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Thien Long Group's current Operating Margin % is 14.67%, which is 16% above median its own 10-year median of 12.62. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Thien Long Group stock overvalued right now?
Based on GuruFocus' analysis, Thien Long Group (STC:TLG) is currently considered Modestly Undervalued. The stock's GF Value™ is ₫56,317.01, compared to a current price of ₫49,300.00 — trading 12.5% below its estimated fair value. The current Operating Margin % is 14.67%, which is 16% above median its 10-year median of 12.62 and 124.7% above the Industrial Products industry median of 6.53. Thien Long Group's overall GF Score™ is 99/100 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 Thien Long Group (STC:TLG), the current Operating Margin % is 14.67% 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 Thien Long Group (STC:TLG) Overvalued in 2026?
Based on GuruFocus' analysis, Thien Long Group stock appears to be undervalued.
The current stock price of ₫49,300.00 is trading 12.5% below its estimated GF Value™ of ₫56,317.01.
GuruFocus considers Thien Long Group to be Modestly Undervalued.
Key valuation signals for STC:TLG:
Operating Margin %: 14.67% (16% above median its 10-year median of 12.62)
GF Value™: ₫56,317.01 vs. price of ₫49,300.00 (12.5% below fair value)
Industry Position: 124.7% above the Industrial Products median (#741 of 3038)
No single metric tells the full story. See the STC:TLG stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Thien Long Group Corp is a Vietnam-based company engages in manufacturing and trading of stationery products. Its products include Pens, Office Supplies, School Supplies, and Art Supplies.
99GF Score
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