Power Master Energy Co (ROCO:6839) Piotroski F-Score: 3 (As of Jul. 06, 2026) — 25% Below Median


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 Piotroski F-Score?

Power Master Energy Co ROCO:6839 +0.39% 64 Piotroski F-Score is 3 as of Jul. 06, 2026, which is 25% below its 10-year median of 4.00. 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 989 Semiconductors companies, Power Master Energy Co ranks worse than 78.46% on this metric.

Warning Sign:

Piotroski F-Score of 3 is low, which usually implies poor business operation.

The zones of discrimination were as such:

Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3

Power Master Energy Co has an F-score of 3. It is a bad or low score, which usually implies poor business operation.

The historical rank and industry rank for Power Master Energy Co's Piotroski F-Score or its related term are showing as below:

ROCO:6839' s Piotroski F-Score Range Over the Past 10 Years
Min: 3   Med: 4   Max: 7
Current: 3

During the past 8 years, the highest Piotroski F-Score of Power Master Energy Co was 7. The lowest was 3. And the median was 4.

Power Master Energy Co  (ROCO:6839) Piotroski F-Score Explanation

The developer of the system is Joseph D. Piotroski is relatively unknown accounting professor who shuns publicity and rarely gives interviews.

He graduated from the University of Illinois with a B.S. in accounting in 1989, received an M.B.A. from Indiana University in 1994. Five years later, in 1999, after earning a Ph.D. in accounting from the University of Michigan, he became an associate professor of accounting at the University of Chicago.

In 2000, he wrote a research paper called "Value Investing: The Use of Historical Financial Statement Information to Separate Winners from Losers" (pdf).

He wanted to see if he can develop a system (using a simple nine-point scoring system) that can increase the returns of a strategy of investing in low price to book (referred to in the paper as high book to market) value companies.

What he found was something that exceeded his most optimistic expectations.

Buying only those companies that scored highest (8 or 9) on his nine-point scale, or F-Score as he called it, over the 20 year period from 1976 to 1996 led to an average out-performance over the market of 13.4%.

Even more impressive were the results of a strategy of investing in the highest F-Score companies (8 or 9) and shorting companies with the lowest F-Score (0 or 1).

Over the same period from 1976 to 1996 (20 years) this strategy led to an average yearly return of 23%, substantially outperforming the average S&P 500 index return of 15.83% over the same period.


Power Master Energy Co Piotroski F-Score Related Terms


Power Master Energy Co Piotroski F-Score Historical Data

* Premium members only.

The historical data trend for Power Master Energy Co's Piotroski F-Score 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 Piotroski F-Score Chart

Power Master Energy Co Annual Data
Trend Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Piotroski F-Score
Get a 7-Day Free Trial 4.00 6.00 3.00 3.00 3.00

Power Master Energy Co Semi-Annual Data
Dec18 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
Piotroski F-Score Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 3.00 0.00 3.00 0.00 3.00

ROCO:6839 vs FSLR, NXT, ENPH: Piotroski F-Score Comparison

For the Solar subindustry, Power Master Energy Co's Piotroski F-Score, along with its competitors' market caps and Piotroski F-Score 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 Piotroski F-Score vs Semiconductors Industry

For the Semiconductors industry and Technology sector, Power Master Energy Co's Piotroski F-Score distribution charts can be found below:

* The bar in red indicates where Power Master Energy Co's Piotroski F-Score falls into.


ROCO:6839
64GF Score
Power Master Energy Co Ltd ROCO:6839
Piotroski F-Score is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

How is the Piotroski F-Score calculated?

* 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.

This Year (Dec25) TTM:Last Year (Dec24) TTM:
Net Income was NT$-75 Mil.
Cash Flow from Operations was NT$-199 Mil.
Revenue was NT$1,617 Mil.
Gross Profit was NT$-54 Mil.
Average Total Assets from the begining of this year (Dec24)
to the end of this year (Dec25) was (5899.404 + 5541.969) / 2 = NT$5720.6865 Mil.
Total Assets at the begining of this year (Dec24) was NT$5,899 Mil.
Long-Term Debt & Capital Lease Obligation was NT$1,667 Mil.
Total Current Assets was NT$2,292 Mil.
Total Current Liabilities was NT$2,064 Mil.
Net Income was NT$-216 Mil.

Revenue was NT$1,808 Mil.
Gross Profit was NT$-44 Mil.
Average Total Assets from the begining of last year (Dec23)
to the end of last year (Dec24) was (5922.235 + 5899.404) / 2 = NT$5910.8195 Mil.
Total Assets at the begining of last year (Dec23) was NT$5,922 Mil.
Long-Term Debt & Capital Lease Obligation was NT$1,316 Mil.
Total Current Assets was NT$2,299 Mil.
Total Current Liabilities was NT$2,653 Mil.

*Note: If the latest quarterly/semi-annual/annual total assets data is 0, then we will use previous quarterly/semi-annual/annual data for all the items in the balance sheet.

Profitability

Question 1. Return on Assets (ROA)

Net income before extraordinary items for the year divided by Total Assets at the beginning of the year.

Score 1 if positive, 0 if negative.

Power Master Energy Co's current Net Income (TTM) was -75. ==> Negative ==> Score 0.

Question 2. Cash Flow Return on Assets (CFROA)

Net cash flow from operating activities (operating cash flow) divided by Total Assets at the beginning of the year.

Score 1 if positive, 0 if negative.

Power Master Energy Co's current Cash Flow from Operations (TTM) was -199. ==> Negative ==> Score 0.

Question 3. Change in Return on Assets

Compare this year's return on assets (1) to last year's return on assets.

Score 1 if it's higher, 0 if it's lower.

ROA (This Year)=Net Income/Total Assets (Dec24)
=-75.094/5899.404
=-0.01272908

ROA (Last Year)=Net Income/Total Assets (Dec23)
=-216.487/5922.235
=-0.03655495

Power Master Energy Co's return on assets of this year was -0.01272908. Power Master Energy Co's return on assets of last year was -0.03655495. ==> This year is higher. ==> Score 1.

Question 4. Quality of Earnings (Accrual)

Compare Cash flow return on assets (2) to return on assets (1)

Score 1 if CFROA > ROA, 0 if CFROA <= ROA.

Power Master Energy Co's current Net Income (TTM) was -75. Power Master Energy Co's current Cash Flow from Operations (TTM) was -199. ==> -199 <= -75 ==> CFROA <= ROA ==> Score 0.

Funding

Question 5. Change in Gearing or Leverage

Compare this year's gearing (long-term debt divided by average total assets) to last year's gearing.

Score 0 if this year's gearing is higher, 1 otherwise.

Gearing (This Year: Dec25)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Dec24 to Dec25
=1666.541/5720.6865
=0.29131836

Gearing (Last Year: Dec24)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Dec23 to Dec24
=1315.908/5910.8195
=0.222627

Power Master Energy Co's gearing of this year was 0.29131836. Power Master Energy Co's gearing of last year was 0.222627. ==> Last year is lower than this year ==> Score 0.

Question 6. Change in Working Capital (Liquidity)

Compare this year's current ratio (current assets divided by current liabilities) to last year's current ratio.

Score 1 if this year's current ratio is higher, 0 if it's lower

Current Ratio (This Year: Dec25)=Total Current Assets/Total Current Liabilities
=2291.537/2064.043
=1.11021767

Current Ratio (Last Year: Dec24)=Total Current Assets/Total Current Liabilities
=2298.609/2652.794
=0.86648605

Power Master Energy Co's current ratio of this year was 1.11021767. Power Master Energy Co's current ratio of last year was 0.86648605. ==> This year's current ratio is higher. ==> Score 1.

Question 7. Change in Shares in Issue

Compare the number of shares in issue this year, to the number in issue last year.

Score 0 if there is larger number of shares in issue this year, 1 otherwise.

Power Master Energy Co's number of shares in issue this year was 82.014. Power Master Energy Co's number of shares in issue last year was 82.02. ==> There is smaller number of shares in issue this year, or the same. ==> Score 1.

Efficiency

Question 8. Change in Gross Margin

Compare this year's gross margin (Gross Profit divided by sales) to last year's.

Score 1 if this year's gross margin is higher, 0 if it's lower.

Gross Margin (This Year: TTM)=Gross Profit/Revenue
=-54.185/1617.337
=-0.0335026

Gross Margin (Last Year: TTM)=Gross Profit/Revenue
=-44.054/1808.46
=-0.02435995

Power Master Energy Co's gross margin of this year was -0.0335026. Power Master Energy Co's gross margin of last year was -0.02435995. ==> Last year's gross margin is higher ==> Score 0.

Question 9. Change in asset turnover

Compare this year's asset turnover (total sales for the year divided by total assets at the beginning of the year) to last year's asset turnover ratio.

Score 1 if this year's asset turnover ratio is higher, 0 if it's lower

Asset Turnover (This Year)=Revenue/Total Assets at the Beginning of This Year (Dec24)
=1617.337/5899.404
=0.27415261

Asset Turnover (Last Year)=Revenue/Total Assets at the Beginning of Last Year (Dec23)
=1808.46/5922.235
=0.30536782

Power Master Energy Co's asset turnover of this year was 0.27415261. Power Master Energy Co's asset turnover of last year was 0.30536782. ==> Last year's asset turnover is higher ==> Score 0.

Evaluation

Piotroski F-Score= Que. 1+ Que. 2+ Que. 3+Que. 4+Que. 5+Que. 6+Que. 7+Que. 8+Que. 9
=0+0+1+0+0+1+1+0+0
=3

Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3

Power Master Energy Co has an F-score of 3. It is a bad or low score, which usually implies poor business operation.

Frequently Asked Questions Learn more about Piotroski F-Score →
What does a Piotroski F-Score of 3 mean?
Power Master Energy Co (ROCO:6839) has a Piotroski F-Score of 3 as of Jul. 06, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Power Master Energy Co and its competitors. This is 25% below median its historical median of 4.00. Over the past decade, Power Master Energy Co's Piotroski F-Score has ranged from 3.00 to 7.00. According to the industry distribution chart, Power Master Energy Co ranks #776 out of 989 companies in the Semiconductors industry, placing it in the top 78.5%.
Is Power Master Energy Co's Piotroski F-Score too high?
Power Master Energy Co's current Piotroski F-Score of 3 is 25% below median its 10-year median of 4.00. Over the past 10 years, this metric has ranged from a low of 3.00 to a high of 7.00. The Semiconductors industry median Piotroski F-Score is 5.00. Power Master Energy Co's value of 3 is 40% below this industry median. Based on the distribution chart, Power Master Energy Co ranks #776 out of 989 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 Piotroski F-Score compare to FSLR and NXT?
According to the Semiconductors industry distribution chart, Power Master Energy Co ranks #776 out of 989 companies for Piotroski F-Score. This places Power Master Energy Co in the lower half of its industry. The industry median Piotroski F-Score is 5.00. Power Master Energy Co's value of 3 is 40% below this benchmark. Historically, Power Master Energy Co's own Piotroski F-Score has ranged from 3.00 to 7.00 over the past decade. While the company's 10-year median is 4.00 vs. the industry median of 5.00, Power Master Energy Co has consistently been below 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 Piotroski F-Score for a Semiconductors company?
The median Piotroski F-Score among Semiconductors companies is 5.00, based on 989 companies in the industry. Companies in the top quartile (top 25%) have a Piotroski F-Score significantly above this median, while those in the bottom quartile fall well below. However, Piotroski F-Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Power Master Energy Co's current Piotroski F-Score of 3 is 40% below 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 Piotroski F-Score mean?
A high Piotroski F-Score can signal that a stock is expensive relative to its fundamentals. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Power Master Energy Co and its competitors. For the Semiconductors industry, the median Piotroski F-Score is 5.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Power Master Energy Co's current Piotroski F-Score is 3, which is 25% below median its own 10-year median of 4.00. 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 Piotroski F-Score is 3, which is 25% below median its 10-year median of 4.00 and 40% below the Semiconductors industry median of 5.00. 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 Piotroski F-Score calculated?
Piotroski F-Score is calculated from a company's financial statements. For Power Master Energy Co (ROCO:6839), the current Piotroski F-Score is 3 as of Jul. 06, 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 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:

  • Piotroski F-Score: 3 (25% below median its 10-year median of 4.00)
  • GF Value™: NT$15.72 vs. price of NT$12.80 (18.6% below fair value)
  • GF Score™: 64/100 with 6 warning signs
  • Industry Position: 40% below the Semiconductors median (#776 of 989)

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

Piotroski F-Score 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