Power Master Energy Co (ROCO:6839) Gross Margin %: -9.89% (As of Dec. 2025)


ROCO:6839 Power Master Energy Co Ltd ROCO:6839
64 GF Score
Price NT$12.80
GF Value NT$15.72
Valuation Modestly Undervalued
! 6 Warning Signs
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What is Power Master Energy Co Gross Margin %?

Power Master Energy Co ROCO:6839 +0.39% 64 Gross Margin % is -9.89% 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 1,008 Semiconductors companies, Power Master Energy Co ranks worse than 95.63% on this metric.

Gross Margin % is calculated as gross profit divided by its revenue. Power Master Energy Co's Gross Profit for the six months ended in Dec. 2025 was NT$-74 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 Gross Margin % for the quarter that ended in Dec. 2025 was -9.89%.


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

ROCO:6839' s Gross Margin % Range Over the Past 10 Years
Min: -3.35   Med: 14.08   Max: 20.73
Current: -3.35


During the past 8 years, the highest Gross Margin % of Power Master Energy Co was 20.73%. The lowest was -3.35%. And the median was 14.08%.

ROCO:6839's Gross Margin % is ranked worse than
95.63% of 1008 companies
in the Semiconductors industry
Industry Median: 29.61 vs ROCO:6839: -3.35

Power Master Energy Co had a gross margin of -9.89% for the quarter that ended in Dec. 2025 => No sustainable competitive advantage

The 5-Year average Growth Rate of Gross Margin for Power Master Energy Co was 0.00% per year.


Power Master Energy Co  (ROCO:6839) Gross Margin % Explanation

Warren Buffett believes that firms with excellent long term economics tend to have consistently higher margins.

Durable competitive advantage creates a high Gross Margin % because of the freedom to price in excess of cost. Companies can be categorized by their Gross Margin %

1. Greater than 40% = Durable competitive advantage
2. Less than 40% = Competition eroding margins
3. Less than 20% = no sustainable competitive advantage
Consistency of Gross Margin is key

Power Master Energy Co had a gross margin of -9.89% for the quarter that ended in Dec. 2025 => No sustainable competitive advantage


Be Aware

If a company loses its competitive advantages, usually its gross margin declines well before its sales declines. Watching Gross Margin % and Operating Margin % closely helps avoid value trap situations.


Power Master Energy Co Gross Margin % Related Terms


Power Master Energy Co Gross Margin % Historical Data

* Premium members only.

The historical data trend for Power Master Energy Co's Gross 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 Gross Margin % Chart

Power Master Energy Co Annual Data
Trend Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Gross Margin %
Get a 7-Day Free Trial 13.42 9.76 14.74 -2.44 -3.35

Power Master Energy Co Semi-Annual Data
Dec18 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
Gross 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 20.29 12.67 -15.41 2.25 -9.89

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

For the Solar subindustry, Power Master Energy Co's Gross Margin %, along with its competitors' market caps and Gross 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 Gross Margin % vs Semiconductors Industry

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

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


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

Gross Margin is the percentage of Gross Profit out of sales or Revenue.

Power Master Energy Co's Gross Margin for the fiscal year that ended in Dec. 2025 is calculated as

Gross Margin % (A: Dec. 2025 )=Gross Profit (A: Dec. 2025 ) / Revenue (A: Dec. 2025 )
=-54.2 / 1617.337
=(Revenue - Cost of Goods Sold) / Revenue
=(1617.337 - 1671.522) / 1617.337
=-3.35 %

Power Master Energy Co's Gross Margin for the quarter that ended in Dec. 2025 is calculated as


Gross Margin % (Q: Dec. 2025 )=Gross Profit (Q: Dec. 2025 ) / Revenue (Q: Dec. 2025 )
=-73.8 / 746.205
=(Revenue - Cost of Goods Sold) / Revenue
=(746.205 - 820.033) / 746.205
=-9.89 %

* 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.

A positive Gross Profit is only the first step for a company to make a net profit. The gross profit needs to be big enough to also cover related labor, equipment, rental, marketing/advertising, research and development and a lot of other costs in selling the products.

Frequently Asked Questions Learn more about Gross Margin % →
What does a Gross Margin % of -9.89% mean?
Power Master Energy Co (ROCO:6839) has a Gross Margin % of -9.89% as of Dec. 2025. Gross margin is the ratio of total gross profit 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 #964 out of 1008 companies in the Semiconductors industry, placing it in the top 95.6%.
Is Power Master Energy Co's Gross Margin % too high?
Power Master Energy Co's current Gross Margin % is -9.89%. Based on the distribution chart, Power Master Energy Co ranks #964 out of 1008 companies in the Semiconductors industry, which is in the bottom quartile relative to peers. 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 Gross Margin % compare to FSLR and NXT?
According to the Semiconductors industry distribution chart, Power Master Energy Co ranks #964 out of 1008 companies for Gross Margin %. This places Power Master Energy Co in the lower half of its industry. The industry median Gross Margin % is 29.61. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Gross Margin % for a Semiconductors company?
The median Gross Margin % among Semiconductors companies is 29.61, based on 1,008 companies in the industry. Companies in the top quartile (top 25%) have a Gross Margin % significantly above this median, while those in the bottom quartile fall well below. However, Gross 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 Gross Margin % mean?
A high Gross Margin % can signal that a stock is expensive relative to its fundamentals. Gross margin is the ratio of total gross profit to net sales. View historical data on Power Master Energy Co and its competitors. For the Semiconductors industry, the median Gross Margin % is 29.61 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Power Master Energy Co's current Gross Margin % is -9.89%. 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$12.80 — trading 18.6% below its estimated fair value. The current Gross Margin % is -9.89%. 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 Gross Margin % calculated?
Gross Margin % is calculated from a company's financial statements. For Power Master Energy Co (ROCO:6839), the current Gross Margin % is -9.89% 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$12.80 is trading 18.6% 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:

  • Gross Margin %: -9.89%
  • GF Value™: NT$15.72 vs. price of NT$12.80 (18.6% 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

Get the complete analysis for ROCO:6839

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

NT$12.80
Price
NT$15.72
GF Value