Ruby Tech (ROCO:8048) 3-Year ROIIC % : -9.86% (As of Dec. 2025)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
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.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
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.

ROCO:8048 Ruby Tech Corp ROCO:8048
80 GF Score
Price NT$50.40
GF Value NT$40.44
Valuation Modestly Overvalued
! 2 Warning Signs
View Full Analysis

What is Ruby Tech 3-Year ROIIC %?

Ruby Tech ROCO:8048 +4.35% 80 3-Year ROIIC % is -9.86 as of Dec. 2025. GuruFocus rates ROCO:8048 with a GF Score™ of 80/100 and a GF Value™ of NT$40.44 (Modestly Overvalued). The stock has 2 warning signs investors should review. Among 2,370 Hardware companies, Ruby Tech ranks worse than 66.24% on this metric.

3-Year Return on Invested Incremental Capital (3-Year ROIIC %) measures the change in earnings as a percentage of change in investment over 3-year. Ruby Tech's 3-Year ROIIC % for the quarter that ended in Dec. 2025 was -9.86%. High ROIIC is generally an indication that your business is capital efficient or has a higher operating leverage.

The industry rank for Ruby Tech's 3-Year ROIIC % or its related term are showing as below:

ROCO:8048's 3-Year ROIIC % is ranked worse than
66.24% of 2370 companies
in the Hardware industry
Industry Median: 2.35 vs ROCO:8048: -9.86

Ruby Tech  (ROCO:8048) 3-Year ROIIC % Explanation

Return on Incremental Invested Capital (ROIIC) is an extension of Return on Investment Capital (ROIC). ROIC % tells investors how efficiently that profitability is earned per dollar of company capital. ROIIC narrows the focus even further and shows how profitable each additional unit of capital investment could be. ROIIC % is a more powerful metric than ROIC because it measures how much money the company can generate going forward on future capital investments.

High ROIIC is generally an indication that your business is capital efficient or has a higher operating leverage.

Be Aware

It's important to keep in mind that when tracking ROIIC, the metric is better suited to forecasting the trend of future returns rather than measuring current return on investment.


Ruby Tech 3-Year ROIIC % Related Terms


Ruby Tech 3-Year ROIIC % Historical Data

* Premium members only.

The historical data trend for Ruby Tech's 3-Year ROIIC % 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.

Ruby Tech 3-Year ROIIC % Chart

Ruby Tech Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
3-Year ROIIC %
Get a 7-Day Free Trial Premium Member Only Premium Member Only -11.75 -13.29 38.97 -1,271.36 -9.86

Ruby Tech Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
3-Year ROIIC % 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 -1,271.36 0.00 0.00 0.00 -9.86

ROCO:8048 vs CSCO, MSI, HPE: 3-Year ROIIC % Comparison

For the Communication Equipment subindustry, Ruby Tech's 3-Year ROIIC %, along with its competitors' market caps and 3-Year ROIIC % 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 3-Year ROIIC % vs Hardware Industry

For the Hardware industry and Technology sector, Ruby Tech's 3-Year ROIIC % distribution charts can be found below:

* The bar in red indicates where Ruby Tech's 3-Year ROIIC % falls into.


ROCO:8048
80GF Score
Ruby Tech Corp ROCO:8048
3-Year ROIIC % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Ruby Tech 3-Year ROIIC % Calculation

Ruby Tech's 3-Year ROIIC % for the quarter that ended in Dec. 2025 is calculated as:

3-Year ROIIC %=3-Year Incremental Net Operating Profit After Taxes (NOPAT)**/3-Year Incremental Invested Capital**
=( 138.9648499 (Dec. 2025) - 121.252383 (Dec. 2022) )/( 423.664 (Dec. 2025) - 603.293 (Dec. 2022) )
=17.7124669/-179.629
=-9.86%***

* 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.

** Annual data of NOPAT and Invested Capital was used to calculate 3-Year ROIIC %.
*** Please be aware that the ROIIC (Return on Invested Capital) calculations are based on company-level data using the primary share class. The calculated data provided is for demonstration purposes and may slightly differ from the results displayed in the title due to potential variations caused by currency exchange rate differences throughout the year.

Frequently Asked Questions Learn more about 3-Year ROIIC % →
What does a 3-Year ROIIC % of -9.86 mean?
Ruby Tech (ROCO:8048) has a 3-Year ROIIC % of -9.86 as of Dec. 2025. 3-Year ROIIC % measures the change in earnings as a percentage of change in investment over 3-year. View historical data on Ruby Tech and its competitors. According to the industry distribution chart, Ruby Tech ranks #1570 out of 2370 companies in the Hardware industry, placing it in the top 66.2%.
Is Ruby Tech's 3-Year ROIIC % too high?
Ruby Tech's current 3-Year ROIIC % is -9.86. Based on the distribution chart, Ruby Tech ranks #1570 out of 2370 companies in the Hardware industry, which is below the industry midpoint. Overall, Ruby Tech has a GF Score™ of 80/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Ruby Tech's 3-Year ROIIC % compare to CSCO and MSI?
According to the Hardware industry distribution chart, Ruby Tech ranks #1570 out of 2370 companies for 3-Year ROIIC %. This places Ruby Tech in the lower half of its industry. The industry median 3-Year ROIIC % is 2.35. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 3-Year ROIIC % for a Hardware company?
The median 3-Year ROIIC % among Hardware companies is 2.35, based on 2,370 companies in the industry. Companies in the top quartile (top 25%) have a 3-Year ROIIC % significantly above this median, while those in the bottom quartile fall well below. However, 3-Year ROIIC % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high 3-Year ROIIC % mean?
A high 3-Year ROIIC % can signal that a stock is expensive relative to its fundamentals. 3-Year ROIIC % measures the change in earnings as a percentage of change in investment over 3-year. View historical data on Ruby Tech and its competitors. For the Hardware industry, the median 3-Year ROIIC % is 2.35 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Ruby Tech's current 3-Year ROIIC % is -9.86. 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 Modestly Overvalued. The stock's GF Value™ is NT$40.44, compared to a current price of NT$50.40 — trading 24.6% above its estimated fair value. The current 3-Year ROIIC % is -9.86. Ruby Tech's overall GF Score™ is 80/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 3-Year ROIIC % calculated?
3-Year ROIIC % is calculated from a company's financial statements. For Ruby Tech (ROCO:8048), the current 3-Year ROIIC % is -9.86 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 Ruby Tech (ROCO:8048) Overvalued in 2026?

Based on GuruFocus' analysis, Ruby Tech stock appears to be overvalued. The current stock price of NT$50.40 is trading 24.6% above its estimated GF Value™ of NT$40.44. GuruFocus considers Ruby Tech to be Modestly Overvalued.

Key valuation signals for ROCO:8048:

  • 3-Year ROIIC %: -9.86
  • GF Value™: NT$40.44 vs. price of NT$50.40 (24.6% above fair value)
  • GF Score™: 80/100 with 2 warning signs

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 Business Description

Address Nangang Road, 3rd Floor No.1, Lane 50, Section 3, Xixin Village, Nangang District, Tapei, TWN, 115
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.
80GF Score

Get the complete analysis for ROCO:8048

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

NT$50.40
Price
NT$40.44
GF Value