Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
Sung GangROCO:6240 -2.70%69 Net Margin % is 41.99% as of Dec. 2025, which is 428% above its 10-year median of 7.96. GuruFocus rates ROCO:6240 with a GF Score™ of 69/100 and a GF Value™ of NT$26.12 (Possible Value Trap). The stock has 3 warning signs investors should review. Among 1,011 Media - Diversified companies, Sung Gang ranks worse than 89.12% on this metric.
Net margin is calculated as Net Income divided by its Revenue. Sung Gang's Net Income for the
three
months ended in Dec. 2025 was NT$6.44 Mil. Sung Gang's Revenue for the
three
months ended in Dec. 2025 was NT$15.34 Mil. Therefore, Sung Gang's net margin for the quarter that ended in Dec. 2025 was 41.99%.
The historical rank and industry rank for Sung Gang's Net Margin % or its related term are showing as below:
ROCO:6240'
s Net Margin % Range Over the Past 10 Years
Min: -170.66 Med: 7.96 Max: 310.49
Current: -52.66
ROCO:6240's Net Margin % is ranked worse than 89.12% of 1011
companies
in the Media - Diversified industry
Industry Median: 1.3
vs ROCO:6240: -52.66
Sung Gang (ROCO:6240) Net Margin % Explanation
Although Net Income and Earnings-per-Share (EPS) are the most widely used parameter in measuring a company's profitability and valuation, it is the least reliable. The reason is that reported earnings can be manipulated easily by adjusting any numbers such as Depreciation, Depletion and Amotorization and non-recurring items.
But the long term trend of the net margin is a good indicator of the competitiveness and health of the business.
Sung Gang Net Margin % Related Terms
Sung Gang Net Margin % Historical Data
* Premium members only.
The historical data trend for Sung Gang's Net 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 Publishing subindustry, Sung Gang's Net Margin %, along with its competitors' market caps and Net 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.
Sung Gang Net Margin % vs Media - Diversified Industry
For the Media - Diversified industry and Communication Services sector, Sung Gang's Net Margin % distribution charts can be found below:
* The bar in red indicates where Sung Gang's Net Margin % falls into.
* 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.
Sung Gang (ROCO:6240) has a Net Margin % of 41.99% as of Dec. 2025. Net margin is the ratio of total net income to net sales. View historical data on Sung Gang and its competitors. This is 428% above median its historical median of 7.96. According to the industry distribution chart, Sung Gang ranks #901 out of 1011 companies in the Media - Diversified industry, placing it in the top 89.1%.
Is Sung Gang's Net Margin % too high?
Sung Gang's current Net Margin % of 41.99% is 428% above median its 10-year median of 7.96. The Media - Diversified industry median Net Margin % is 1.30. Sung Gang's value of 41.99% is 3130% above this industry median. Based on the distribution chart, Sung Gang ranks #901 out of 1011 companies in the Media - Diversified industry, which is in the bottom quartile relative to peers. Overall, Sung Gang has a GF Score™ of 69/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Sung Gang's Net Margin % compare to NYT and WLY?
According to the Media - Diversified industry distribution chart, Sung Gang ranks #901 out of 1011 companies for Net Margin %. This places Sung Gang in the lower half of its industry. The industry median Net Margin % is 1.30. Sung Gang's value of 41.99% is 3130% above this benchmark. While the company's 10-year median is 7.96 vs. the industry median of 1.30, Sung Gang 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 Net Margin % for a Media - Diversified company?
The median Net Margin % among Media - Diversified companies is 1.30, based on 1,011 companies in the industry. Companies in the top quartile (top 25%) have a Net Margin % significantly above this median, while those in the bottom quartile fall well below. However, Net Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Sung Gang's current Net Margin % of 41.99% is 3130% 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 Net Margin % mean?
A high Net Margin % can signal that a stock is expensive relative to its fundamentals. Net margin is the ratio of total net income to net sales. View historical data on Sung Gang and its competitors. For the Media - Diversified industry, the median Net Margin % is 1.30 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sung Gang's current Net Margin % is 41.99%, which is 428% above median its own 10-year median of 7.96. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sung Gang stock overvalued right now?
Based on GuruFocus' analysis, Sung Gang (ROCO:6240) is currently considered Possible Value Trap. The stock's GF Value™ is NT$26.12, compared to a current price of NT$18.05 — trading 30.9% below its estimated fair value. The current Net Margin % is 41.99%, which is 428% above median its 10-year median of 7.96 and 3130% above the Media - Diversified industry median of 1.30. Sung Gang's overall GF Score™ is 69/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Net Margin % calculated?
Net Margin % is calculated from a company's financial statements. For Sung Gang (ROCO:6240), the current Net Margin % is 41.99% 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 Sung Gang (ROCO:6240) Overvalued in 2026?
Based on GuruFocus' analysis, Sung Gang stock appears to be undervalued.
The current stock price of NT$18.05 is trading 30.9% below its estimated GF Value™ of NT$26.12.
GuruFocus considers Sung Gang to be Possible Value Trap.
Key valuation signals for ROCO:6240:
Net Margin %: 41.99% (428% above median its 10-year median of 7.96)
GF Value™: NT$26.12 vs. price of NT$18.05 (30.9% below fair value)
Industry Position: 3130% above the Media - Diversified median (#901 of 1011)
No single metric tells the full story. See the ROCO:6240 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Sung Gang Corp Ltd publishes computer related books. The company is also involved in the wholesale of information software and leasing industry. Its products portfolio include Information technology books, Commercial software, Application software, and Computer skill test.
69GF Score
Get the complete analysis for ROCO:6240
Net Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
ROCO:6240 has been successfully added to your 
