Power Master Energy Co (ROCO:6839) Pretax Margin %: -26.28% (As of Dec. 2025)


ROCO:6839 Power Master Energy Co Ltd ROCO:6839
64 GF Score
Price NT$12.50
GF Value NT$15.72
Valuation Modestly Undervalued
! 6 Warning Signs
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What is Power Master Energy Co Pretax Margin %?

Power Master Energy Co ROCO:6839 -1.96% 64 Pretax Margin % is -26.28% as of Dec. 2025. GuruFocus rates ROCO:6839 with a GF Score™ of 64/100 and a GF Value™ of NT$15.72 (Modestly Undervalued). The stock has 6 warning signs investors should review. Among 1,020 Semiconductors companies, Power Master Energy Co ranks worse than 73.73% on this metric.

Pre-Tax margin is calculated as Pre-Tax Income divided by its Revenue. Power Master Energy Co's Pre-Tax Income for the six months ended in Dec. 2025 was NT$-196 Mil. Power Master Energy Co's Revenue for the six months ended in Dec. 2025 was NT$746 Mil. Therefore, Power Master Energy Co's pretax margin for the quarter that ended in Dec. 2025 was -26.28%.

The historical rank and industry rank for Power Master Energy Co's Pretax Margin % or its related term are showing as below:

ROCO:6839' s Pretax Margin % Range Over the Past 10 Years
Min: -16.74   Med: 3.24   Max: 7.33
Current: -7.94


ROCO:6839's Pretax Margin % is ranked worse than
73.73% of 1020 companies
in the Semiconductors industry
Industry Median: 5.11 vs ROCO:6839: -7.94

Power Master Energy Co  (ROCO:6839) 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.


Power Master Energy Co Pretax Margin % Related Terms


Power Master Energy Co Pretax Margin % Historical Data

* Premium members only.

The historical data trend for Power Master Energy Co'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.

Power Master Energy Co Pretax Margin % Chart

Power Master Energy Co Annual Data
Trend Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Pretax Margin %
Get a 7-Day Free Trial 2.71 3.76 6.20 -16.74 -7.94

Power Master Energy Co Semi-Annual Data
Dec18 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 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 12.05 -4.36 -27.38 7.77 -26.28

ROCO:6839 vs FSLR, NXT, ENPH: Pretax Margin % Comparison

For the Solar subindustry, Power Master Energy Co'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.


Power Master Energy Co Pretax Margin % vs Semiconductors Industry

For the Semiconductors industry and Technology sector, Power Master Energy Co's Pretax Margin % distribution charts can be found below:

* The bar in red indicates where Power Master Energy Co's Pretax Margin % falls into.


ROCO:6839
64GF Score
Power Master Energy Co Ltd ROCO:6839
Pretax Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
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Power Master Energy Co 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.

Power Master Energy Co'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 )
=-128.431/1617.337
=-7.94 %

Power Master Energy Co'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 )
=-196.103/746.205
=-26.28 %

* 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 -26.28% mean?
Power Master Energy Co (ROCO:6839) has a Pretax Margin % of -26.28% as of Dec. 2025. Pre-Tax margin is the ratio of total pre-tax income to net sales. View historical data on Power Master Energy Co and its competitors. According to the industry distribution chart, Power Master Energy Co ranks #752 out of 1020 companies in the Semiconductors industry, placing it in the top 73.7%.
Is Power Master Energy Co's Pretax Margin % too high?
Power Master Energy Co's current Pretax Margin % is -26.28%. Based on the distribution chart, Power Master Energy Co ranks #752 out of 1020 companies in the Semiconductors industry, which is below the industry midpoint. Overall, Power Master Energy Co has a GF Score™ of 64/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Power Master Energy Co's Pretax Margin % compare to FSLR and NXT?
According to the Semiconductors industry distribution chart, Power Master Energy Co ranks #752 out of 1020 companies for Pretax Margin %. This places Power Master Energy Co in the lower half of its industry. The industry median Pretax Margin % is 5.11. 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 Semiconductors company?
The median Pretax Margin % among Semiconductors companies is 5.11, based on 1,020 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. 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 Power Master Energy Co and its competitors. For the Semiconductors industry, the median Pretax Margin % is 5.11 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Power Master Energy Co's current Pretax Margin % is -26.28%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Power Master Energy Co stock overvalued right now?
Based on GuruFocus' analysis, Power Master Energy Co (ROCO:6839) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$15.72, compared to a current price of NT$12.50 — trading 20.5% below its estimated fair value. The current Pretax Margin % is -26.28%. Power Master Energy Co's overall GF Score™ is 64/100 with 6 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 Power Master Energy Co (ROCO:6839), the current Pretax Margin % is -26.28% 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 Power Master Energy Co (ROCO:6839) Overvalued in 2026?

Based on GuruFocus' analysis, Power Master Energy Co stock appears to be undervalued. The current stock price of NT$12.50 is trading 20.5% below its estimated GF Value™ of NT$15.72. GuruFocus considers Power Master Energy Co to be Modestly Undervalued.

Key valuation signals for ROCO:6839:

  • Pretax Margin %: -26.28%
  • GF Value™: NT$15.72 vs. price of NT$12.50 (20.5% below fair value)
  • GF Score™: 64/100 with 6 warning signs

No single metric tells the full story. See the ROCO:6839 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Power Master Energy Co Business Description

Address 3, Zhongzheng Road, 8th Floor, No. 651, Xinzhuang District, New Taipei City, TWN
Power Master Energy Co Ltd Formerly Power Master II Holdings Co Ltd is a professional solar power system provider in Taiwan. The business scope is divided into the four main axes of the solar power systems: Engineering Contract EPC, Power Plant Investment, Maintenance Operation Management, and Energy Storage System. It also develops solar photovoltaic components such as modules, brackets, and inverters.
64GF Score

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

NT$12.50
Price
NT$15.72
GF Value