Tainet Communication System (ROCO:4905) Pretax Margin %: 18.32% (As of Dec. 2025) — 77% Below Median


ROCO:4905 Tainet Communication System Corp ROCO:4905
54 GF Score
Price NT$67.20
GF Value NT$278.20
Valuation Possible Value Trap
! 7 Warning Signs
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What is Tainet Communication System Pretax Margin %?

Tainet Communication System ROCO:4905 +0.30% 54 Pretax Margin % is 18.32% as of Dec. 2025, which is 77% below its 10-year median of 80.07. GuruFocus rates ROCO:4905 with a GF Score™ of 54/100 and a GF Value™ of NT$278.20 (Possible Value Trap). The stock has 7 warning signs investors should review. Among 2,472 Hardware companies, Tainet Communication System ranks better than 85.32% on this metric.

Pre-Tax margin is calculated as Pre-Tax Income divided by its Revenue. Tainet Communication System's Pre-Tax Income for the three months ended in Dec. 2025 was NT$37.7 Mil. Tainet Communication System's Revenue for the three months ended in Dec. 2025 was NT$205.9 Mil. Therefore, Tainet Communication System's pretax margin for the quarter that ended in Dec. 2025 was 18.32%.

The historical rank and industry rank for Tainet Communication System's Pretax Margin % or its related term are showing as below:

ROCO:4905' s Pretax Margin % Range Over the Past 10 Years
Min: -160.33   Med: 80.07   Max: 1223.25
Current: 15.48


ROCO:4905's Pretax Margin % is ranked better than
85.32% of 2472 companies
in the Hardware industry
Industry Median: 3.585 vs ROCO:4905: 15.48

Tainet Communication System  (ROCO:4905) Pretax Margin % Explanation

The pretax margin, as know as pretax profit margin, is widely used to measure the operating efficiency of a company before deducting taxes.

The pretax margin is sometimes preferred over the net margin as tax expenditures can make profitability comparisons between companies misleading.

It is a useful tool to compare companies operating in the same sector and less effective when comparing companies from other sectors as each industry generally has different operating expenses and sales patterns.

The long term trend of the pretax margin is a good indicator of the competitiveness and health of the business.


Tainet Communication System Pretax Margin % Related Terms


Tainet Communication System Pretax Margin % Historical Data

* Premium members only.

The historical data trend for Tainet Communication System's Pretax 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.

Tainet Communication System Pretax Margin % Chart

Tainet Communication System Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Pretax Margin %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 111.21 -54.17 145.71 21.71 15.48

Tainet Communication System Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
Pretax 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 19.43 19.94 -33.52 57.19 18.32

ROCO:4905 vs CSCO, CIEN, MSI: Pretax Margin % Comparison

For the Communication Equipment subindustry, Tainet Communication System's Pretax Margin %, along with its competitors' market caps and Pretax 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.


Tainet Communication System Pretax Margin % vs Hardware Industry

For the Hardware industry and Technology sector, Tainet Communication System's Pretax Margin % distribution charts can be found below:

* The bar in red indicates where Tainet Communication System's Pretax Margin % falls into.


ROCO:4905
54GF Score
Tainet Communication System Corp ROCO:4905
Pretax Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
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Tainet Communication System Pretax Margin % Calculation

Pretax margin - also known as pretax profit margin is the ratio of Pretax Income divided by net sales or Revenue, usually presented in percent.

Tainet Communication System's Pretax Margin for the fiscal year that ended in Dec. 2025 is calculated as

Pretax Margin=Pre-Tax Income (A: Dec. 2025 )/Revenue (A: Dec. 2025 )
=112.52/726.755
=15.48 %

Tainet Communication System's Pretax Margin for the quarter that ended in Dec. 2025 is calculated as

Pretax Margin=Pre-Tax Income (Q: Dec. 2025 )/Revenue (Q: Dec. 2025 )
=37.711/205.874
=18.32 %

* 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 Pretax Margin % →
What does a Pretax Margin % of 18.32% mean?
Tainet Communication System (ROCO:4905) has a Pretax Margin % of 18.32% as of Dec. 2025. Pre-Tax margin is the ratio of total pre-tax income to net sales. View historical data on Tainet Communication System and its competitors. This is 77% below median its historical median of 80.07. According to the industry distribution chart, Tainet Communication System ranks #363 out of 2472 companies in the Hardware industry, placing it in the top 14.7%.
Is Tainet Communication System's Pretax Margin % too high?
Tainet Communication System's current Pretax Margin % of 18.32% is 77% below median its 10-year median of 80.07. The Hardware industry median Pretax Margin % is 3.59. Tainet Communication System's value of 18.32% is 411% above this industry median. Based on the distribution chart, Tainet Communication System ranks #363 out of 2472 companies in the Hardware industry, which is in the top quartile — a strong position relative to peers. Overall, Tainet Communication System has a GF Score™ of 54/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Tainet Communication System's Pretax Margin % compare to CSCO and CIEN?
According to the Hardware industry distribution chart, Tainet Communication System ranks #363 out of 2472 companies for Pretax Margin %. This places Tainet Communication System in the top 15% of its industry — outperforming the majority of peers. The industry median Pretax Margin % is 3.59. Tainet Communication System's value of 18.32% is 411% above this benchmark. While the company's 10-year median is 80.07 vs. the industry median of 3.59, Tainet Communication System 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 Pretax Margin % for a Hardware company?
The median Pretax Margin % among Hardware companies is 3.59, based on 2,472 companies in the industry. Companies in the top quartile (top 25%) have a Pretax Margin % significantly above this median, while those in the bottom quartile fall well below. However, Pretax Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Tainet Communication System's current Pretax Margin % of 18.32% is 411% 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 Pretax Margin % mean?
A high Pretax Margin % can signal that a stock is expensive relative to its fundamentals. Pre-Tax margin is the ratio of total pre-tax income to net sales. View historical data on Tainet Communication System and its competitors. For the Hardware industry, the median Pretax Margin % is 3.59 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Tainet Communication System's current Pretax Margin % is 18.32%, which is 77% below median its own 10-year median of 80.07. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tainet Communication System stock overvalued right now?
Based on GuruFocus' analysis, Tainet Communication System (ROCO:4905) is currently considered Possible Value Trap. The stock's GF Value™ is NT$278.20, compared to a current price of NT$67.20 — trading 75.8% below its estimated fair value. The current Pretax Margin % is 18.32%, which is 77% below median its 10-year median of 80.07 and 411% above the Hardware industry median of 3.59. Tainet Communication System's overall GF Score™ is 54/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Pretax Margin % calculated?
Pretax Margin % is calculated from a company's financial statements. For Tainet Communication System (ROCO:4905), the current Pretax Margin % is 18.32% 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 Tainet Communication System (ROCO:4905) Overvalued in 2026?

Based on GuruFocus' analysis, Tainet Communication System stock appears to be undervalued. The current stock price of NT$67.20 is trading 75.8% below its estimated GF Value™ of NT$278.20. GuruFocus considers Tainet Communication System to be Possible Value Trap.

Key valuation signals for ROCO:4905:

  • Pretax Margin %: 18.32% (77% below median its 10-year median of 80.07)
  • GF Value™: NT$278.20 vs. price of NT$67.20 (75.8% below fair value)
  • GF Score™: 54/100 with 7 warning signs
  • Industry Position: 411% above the Hardware median (#363 of 2472)

No single metric tells the full story. See the ROCO:4905 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Tainet Communication System Business Description

Address No.108, Ruiguang Road, 3 floor, Huyuan Li, Neihu District, Taipei, TWN, 114
Tainet Communication System Corp is a manufacturer of digital transmission and switching equipment, data terminal equipment, line interface equipment (including telemetry devices), communication and traffic. Manufacturing, processing, trading and installation engineering business of replacement equipment, programmable power supplies, etc.
54GF Score

Get the complete analysis for ROCO:4905

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

NT$67.20
Price
NT$278.20
GF Value