Winson Machinery Co (ROCO:4538) Piotroski F-Score: 7 (As of Jul. 15, 2026) — 17% Above Median

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ROCO:4538 Winson Machinery Co Ltd ROCO:4538
75 GF Score
Price NT$18.60
GF Value NT$17.46
Valuation Fairly Valued
! 5 Warning Signs
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What is Winson Machinery Co Piotroski F-Score?

Winson Machinery Co ROCO:4538 +0.54% 75 Piotroski F-Score is 7 as of Jul. 15, 2026, which is 17% above its 10-year median of 6.00. GuruFocus rates ROCO:4538 with a GF Score™ of 75/100 and a GF Value™ of NT$17.46 (Fairly Valued). The stock has 5 warning signs investors should review. Among 2,970 Industrial Products companies, Winson Machinery Co ranks better than 90.64% on this metric.

Good Sign:

Piotroski F-Score is 7, indicates a very healthy situation.

The zones of discrimination were as such:

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

Winson Machinery Co has an F-score of 7. It is a good or high score, which usually indicates a very healthy situation.

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

ROCO:4538' s Piotroski F-Score Range Over the Past 10 Years
Min: 2   Med: 6   Max: 8
Current: 7

During the past 13 years, the highest Piotroski F-Score of Winson Machinery Co was 8. The lowest was 2. And the median was 6.

Winson Machinery Co  (ROCO:4538) 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.


Winson Machinery Co Piotroski F-Score Related Terms


Winson Machinery Co Piotroski F-Score Historical Data

* Premium members only.

The historical data trend for Winson Machinery 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.

Winson Machinery Co Piotroski F-Score Chart

Winson Machinery Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Piotroski F-Score
Get a 7-Day Free Trial Premium Member Only Premium Member Only 6.00 7.00 5.00 6.00 7.00

Winson Machinery Co Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 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 Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 6.00 5.00 7.00 4.00 7.00

ROCO:4538 vs CRS, ATI, MLI: Piotroski F-Score Comparison

For the Metal Fabrication subindustry, Winson Machinery 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.


Winson Machinery Co Piotroski F-Score vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, Winson Machinery Co's Piotroski F-Score distribution charts can be found below:

* The bar in red indicates where Winson Machinery Co's Piotroski F-Score falls into.


ROCO:4538
75GF Score
Winson Machinery Co Ltd ROCO:4538
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 6.727 + 0.072 + 5.603 + 4.927 = NT$17.3 Mil.
Cash Flow from Operations was 33.656 + 48.321 + 0.474 + 17.77 = NT$100.2 Mil.
Revenue was 69.594 + 106.364 + 102.25 + 101.578 = NT$379.8 Mil.
Gross Profit was 12.702 + 21.044 + 11.423 + 14.918 = NT$60.1 Mil.
Average Total Assets from the begining of this year (Dec24)
to the end of this year (Dec25) was
(939.295 + 957.539 + 964.941 + 951.149 + 940.353) / 5 = NT$950.6554 Mil.
Total Assets at the begining of this year (Dec24) was NT$939.3 Mil.
Long-Term Debt & Capital Lease Obligation was NT$0.0 Mil.
Total Current Assets was NT$468.1 Mil.
Total Current Liabilities was NT$61.1 Mil.
Net Income was 7.425 + 0.606 + 20.179 + -17.055 = NT$11.2 Mil.

Revenue was 69.66 + 74.681 + 99.528 + 71.439 = NT$315.3 Mil.
Gross Profit was 17.101 + 12.274 + 20.848 + 7.111 = NT$57.3 Mil.
Average Total Assets from the begining of last year (Dec23)
to the end of last year (Dec24) was
(984.667 + 990.363 + 989.255 + 968.844 + 939.295) / 5 = NT$974.4848 Mil.
Total Assets at the begining of last year (Dec23) was NT$984.7 Mil.
Long-Term Debt & Capital Lease Obligation was NT$0.0 Mil.
Total Current Assets was NT$422.1 Mil.
Total Current Liabilities was NT$68.7 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.

Winson Machinery Co's current Net Income (TTM) was 17.3. ==> Positive ==> Score 1.

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.

Winson Machinery Co's current Cash Flow from Operations (TTM) was 100.2. ==> Positive ==> Score 1.

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)
=17.329/939.295
=0.01844894

ROA (Last Year)=Net Income/Total Assets (Dec23)
=11.155/984.667
=0.0113287

Winson Machinery Co's return on assets of this year was 0.01844894. Winson Machinery Co's return on assets of last year was 0.0113287. ==> 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.

Winson Machinery Co's current Net Income (TTM) was 17.3. Winson Machinery Co's current Cash Flow from Operations (TTM) was 100.2. ==> 100.2 > 17.3 ==> CFROA > ROA ==> Score 1.

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
=0/950.6554
=0

Gearing (Last Year: Dec24)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Dec23 to Dec24
=0/974.4848
=0

Winson Machinery Co's gearing of this year was 0. Winson Machinery Co's gearing of last year was 0. ==> This year is lower or equal to last year. ==> Score 1.

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
=468.08/61.059
=7.66602794

Current Ratio (Last Year: Dec24)=Total Current Assets/Total Current Liabilities
=422.081/68.683
=6.14534892

Winson Machinery Co's current ratio of this year was 7.66602794. Winson Machinery Co's current ratio of last year was 6.14534892. ==> 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.

Winson Machinery Co's number of shares in issue this year was 58.982. Winson Machinery Co's number of shares in issue last year was 58.764. ==> There is larger number of shares in issue this year. ==> Score 0.

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
=60.087/379.786
=0.15821278

Gross Margin (Last Year: TTM)=Gross Profit/Revenue
=57.334/315.308
=0.1818349

Winson Machinery Co's gross margin of this year was 0.15821278. Winson Machinery Co's gross margin of last year was 0.1818349. ==> 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)
=379.786/939.295
=0.40433091

Asset Turnover (Last Year)=Revenue/Total Assets at the Beginning of Last Year (Dec23)
=315.308/984.667
=0.3202179

Winson Machinery Co's asset turnover of this year was 0.40433091. Winson Machinery Co's asset turnover of last year was 0.3202179. ==> This year's asset turnover is higher. ==> Score 1.

Evaluation

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

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

Winson Machinery Co has an F-score of 7. It is a good or high score, which usually indicates a very healthy situation.

Frequently Asked Questions Learn more about Piotroski F-Score →
What does a Piotroski F-Score of 7 mean?
Winson Machinery Co (ROCO:4538) has a Piotroski F-Score of 7 as of Jul. 15, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Winson Machinery Co and its competitors. This is 17% above median its historical median of 6.00. Over the past decade, Winson Machinery Co's Piotroski F-Score has ranged from 2.00 to 8.00. According to the industry distribution chart, Winson Machinery Co ranks #278 out of 2970 companies in the Industrial Products industry, placing it in the top 9.4%.
Is Winson Machinery Co's Piotroski F-Score too high?
Winson Machinery Co's current Piotroski F-Score of 7 is 17% above median its 10-year median of 6.00. Over the past 10 years, this metric has ranged from a low of 2.00 to a high of 8.00. The Industrial Products industry median Piotroski F-Score is 5.00. Winson Machinery Co's value of 7 is 40% above this industry median. Based on the distribution chart, Winson Machinery Co ranks #278 out of 2970 companies in the Industrial Products industry, which is in the top quartile — a strong position relative to peers. Overall, Winson Machinery Co has a GF Score™ of 75/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Winson Machinery Co's Piotroski F-Score compare to CRS and ATI?
According to the Industrial Products industry distribution chart, Winson Machinery Co ranks #278 out of 2970 companies for Piotroski F-Score. This places Winson Machinery Co in the top 9% of its industry — outperforming the majority of peers. The industry median Piotroski F-Score is 5.00. Winson Machinery Co's value of 7 is 40% above this benchmark. Historically, Winson Machinery Co's own Piotroski F-Score has ranged from 2.00 to 8.00 over the past decade. While the company's 10-year median is 6.00 vs. the industry median of 5.00, Winson Machinery Co 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 Piotroski F-Score for an Industrial Products company?
The median Piotroski F-Score among Industrial Products companies is 5.00, based on 2,970 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. Winson Machinery Co's current Piotroski F-Score of 7 is 40% 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 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 Winson Machinery Co and its competitors. For the Industrial Products 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. Winson Machinery Co's current Piotroski F-Score is 7, which is 17% above median its own 10-year median of 6.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Winson Machinery Co stock overvalued right now?
Based on GuruFocus' analysis, Winson Machinery Co (ROCO:4538) is currently considered Fairly Valued. The stock's GF Value™ is NT$17.46, compared to a current price of NT$18.60 — trading 6.5% above its estimated fair value. The current Piotroski F-Score is 7, which is 17% above median its 10-year median of 6.00 and 40% above the Industrial Products industry median of 5.00. Winson Machinery Co's overall GF Score™ is 75/100 with 5 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 Winson Machinery Co (ROCO:4538), the current Piotroski F-Score is 7 as of Jul. 15, 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 Winson Machinery Co (ROCO:4538) Overvalued in 2026?

Based on GuruFocus' analysis, Winson Machinery Co stock appears to be overvalued. The current stock price of NT$18.60 is trading 6.5% above its estimated GF Value™ of NT$17.46. GuruFocus considers Winson Machinery Co to be Fairly Valued.

Key valuation signals for ROCO:4538:

  • Piotroski F-Score: 7 (17% above median its 10-year median of 6.00)
  • GF Value™: NT$17.46 vs. price of NT$18.60 (6.5% above fair value)
  • GF Score™: 75/100 with 5 warning signs
  • Industry Position: 40% above the Industrial Products median (#278 of 2970)

No single metric tells the full story. See the ROCO:4538 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Winson Machinery Co Business Description

Address No. 23, Lugang South 6th Road, Lugang Town, Changhua, TWN, 505
Winson Machinery Co Ltd is a Taiwan-based company specialized in large machine tool castings, ductile iron, and grey iron castings. It offers products such as beds for grinding M/C, heads for vertical milling M/C, beds for slant lathe, bed for lathe M/C, beams, tables, beds for CNC lathes, and others. The company also offers production equipment such as module furan sand mixer, induction furnace, casting ladle, 6-ton induction furnace, vertical sand blasting machine, and annealing furnace.
75GF Score

Get the complete analysis for ROCO:4538

Piotroski F-Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$18.60
Price
NT$17.46
GF Value