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.
Ruby TechROCO:8048 88 Net Margin % is 15.10% as of Jun. 2026, which is 12% above its 10-year median of 13.54. GuruFocus rates ROCO:8048 with a GF Score™ of 88/100 and a GF Value™ of NT$51.72 (Fairly Valued). The stock has 2 warning signs investors should review. Among 2,477 Hardware companies, Ruby Tech ranks better than 87.81% on this metric.
Net margin is calculated as Net Income divided by its Revenue. Ruby Tech's Net Income for the
three
months ended in Jun. 2026 was NT$56 Mil. Ruby Tech's Revenue for the
three
months ended in Jun. 2026 was NT$374 Mil. Therefore, Ruby Tech's net margin for the quarter that ended in Jun. 2026 was 15.10%.
The historical rank and industry rank for Ruby Tech's Net Margin % or its related term are showing as below:
ROCO:8048'
s Net Margin % Range Over the Past 10 Years
Min: 9.86 Med: 13.54 Max: 18.16
Current: 16.87
ROCO:8048's Net Margin % is ranked better than 87.81% of 2477
companies
in the Hardware industry
Industry Median: 2.66
vs ROCO:8048: 16.87
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.
Ruby Tech Net Margin % Related Terms
Ruby Tech Net Margin % Historical Data
* Premium members only.
The historical data trend for Ruby Tech'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.
ROCO:8048 vs CSCO, MSI, HPE: Net Margin % Comparison
For the Communication Equipment subindustry, Ruby Tech'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.
Ruby Tech Net Margin % vs Hardware Industry
For the Hardware industry and Technology sector, Ruby Tech's Net Margin % distribution charts can be found below:
* The bar in red indicates where Ruby Tech'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.
Ruby Tech (ROCO:8048) has a Net Margin % of 15.10% as of Jun. 2026. Net margin is the ratio of total net income to net sales. View historical data on Ruby Tech and its competitors. This is 12% above median its historical median of 13.54. Over the past decade, Ruby Tech's Net Margin % has ranged from 9.86 to 18.16. According to the industry distribution chart, Ruby Tech ranks #302 out of 2477 companies in the Hardware industry, placing it in the top 12.2%.
Is Ruby Tech's Net Margin % too high?
Ruby Tech's current Net Margin % of 15.10% is 12% above median its 10-year median of 13.54. Over the past 10 years, this metric has ranged from a low of 9.86 to a high of 18.16. The Hardware industry median Net Margin % is 2.66. Ruby Tech's value of 15.10% is 467.7% above this industry median. Based on the distribution chart, Ruby Tech ranks #302 out of 2477 companies in the Hardware industry, which is in the top quartile — a strong position relative to peers. Overall, Ruby Tech has a GF Score™ of 88/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Ruby Tech's Net Margin % compare to CSCO and MSI?
According to the Hardware industry distribution chart, Ruby Tech ranks #302 out of 2477 companies for Net Margin %. This places Ruby Tech in the top 12% of its industry — outperforming the majority of peers. The industry median Net Margin % is 2.66. Ruby Tech's value of 15.10% is 467.7% above this benchmark. Historically, Ruby Tech's own Net Margin % has ranged from 9.86 to 18.16 over the past decade. While the company's 10-year median is 13.54 vs. the industry median of 2.66, Ruby Tech 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 Hardware company?
The median Net Margin % among Hardware companies is 2.66, based on 2,477 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. Ruby Tech's current Net Margin % of 15.10% is 467.7% 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 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 Ruby Tech and its competitors. For the Hardware industry, the median Net Margin % is 2.66 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Ruby Tech's current Net Margin % is 15.10%, which is 12% above median its own 10-year median of 13.54. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Ruby Tech stock overvalued right now?
Based on GuruFocus' analysis, Ruby Tech (ROCO:8048) is currently considered Fairly Valued. The stock's GF Value™ is NT$51.72, compared to a current price of NT$51.90 — trading 0.3% above its estimated fair value. The current Net Margin % is 15.10%, which is 12% above median its 10-year median of 13.54 and 467.7% above the Hardware industry median of 2.66. Ruby Tech's overall GF Score™ is 88/100 with 2 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 Ruby Tech (ROCO:8048), the current Net Margin % is 15.10% as of Jun. 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 Ruby Tech (ROCO:8048) Overvalued in 2026?
Based on GuruFocus' analysis, Ruby Tech stock appears to be overvalued.
The current stock price of NT$51.90 is trading 0.3% above its estimated GF Value™ of NT$51.72.
GuruFocus considers Ruby Tech to be Fairly Valued.
Key valuation signals for ROCO:8048:
Net Margin %: 15.10% (12% above median its 10-year median of 13.54)
GF Value™: NT$51.72 vs. price of NT$51.90 (0.3% above fair value)
Industry Position: 467.7% above the Hardware median (#302 of 2477)
No single metric tells the full story. See the ROCO:8048 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Ruby Tech Corp is engaged in the research, manufacturing, and trading of optical fiber network equipment for central offices and customer premises, network management switches, and outdoor wireless networking equipment. It is focused on OEM/ODM Business of Networking Products such as PoE Ethernet Switches, Industrial Switches, GEPON OLT/ONU, etc. The reportable segments of the company are: i) Computer and its peripheral equipment: Department 1, and ii) Computer and its peripheral equipment: Department 2. The majority of revenue is derived from Department 1.
88GF Score
Get the complete analysis for ROCO:8048
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:8048 has been successfully added to your 
