Taiwan Steel Union Co (TPE:6581) Piotroski F-Score: 5 (As of Jul. 09, 2026) — 17% Below Median


TPE:6581 Taiwan Steel Union Co Ltd TPE:6581
87 GF Score
Price NT$106.50
GF Value NT$96.94
Valuation Fairly Valued
! 5 Warning Signs
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What is Taiwan Steel Union Co Piotroski F-Score?

Taiwan Steel Union Co TPE:6581 -0.47% 87 Piotroski F-Score is 5 as of Jul. 09, 2026, which is 17% below its 10-year median of 6.00. GuruFocus rates TPE:6581 with a GF Score™ of 87/100 and a GF Value™ of NT$96.94 (Fairly Valued). The stock has 5 warning signs investors should review. Among 238 Waste Management companies, Taiwan Steel Union Co ranks better than 57.56% on this metric.

The zones of discrimination were as such:

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

Taiwan Steel Union Co has an F-score of 5 indicating the company's financial situation is typical for a stable company.

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

TPE:6581' s Piotroski F-Score Range Over the Past 10 Years
Min: 4   Med: 6   Max: 8
Current: 5

During the past 13 years, the highest Piotroski F-Score of Taiwan Steel Union Co was 8. The lowest was 4. And the median was 6.

Taiwan Steel Union Co  (TPE:6581) 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.


Taiwan Steel Union Co Piotroski F-Score Related Terms


Taiwan Steel Union Co Piotroski F-Score Historical Data

* Premium members only.

The historical data trend for Taiwan Steel Union 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.

Taiwan Steel Union Co Piotroski F-Score Chart

Taiwan Steel Union 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 7.00 8.00 6.00 7.00 5.00

Taiwan Steel Union 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 7.00 7.00 8.00 6.00 5.00

TPE:6581 vs WM, RSG, WCN: Piotroski F-Score Comparison

For the Waste Management subindustry, Taiwan Steel Union 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.


Taiwan Steel Union Co Piotroski F-Score vs Waste Management Industry

For the Waste Management industry and Industrials sector, Taiwan Steel Union Co's Piotroski F-Score distribution charts can be found below:

* The bar in red indicates where Taiwan Steel Union Co's Piotroski F-Score falls into.


TPE:6581
87GF Score
Taiwan Steel Union Co Ltd TPE:6581
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 142.77 + 209.53 + 143.32 + 191.133 = NT$687 Mil.
Cash Flow from Operations was 336.754 + 165.663 + 150.227 + 331.589 = NT$984 Mil.
Revenue was 492.781 + 638.903 + 496.726 + 582.348 = NT$2,211 Mil.
Gross Profit was 261.294 + 337.198 + 229.431 + 300.322 = NT$1,128 Mil.
Average Total Assets from the begining of this year (Dec24)
to the end of this year (Dec25) was
(5435.317 + 5642.305 + 5015.744 + 5112.8 + 5421.58) / 5 = NT$5325.5492 Mil.
Total Assets at the begining of this year (Dec24) was NT$5,435 Mil.
Long-Term Debt & Capital Lease Obligation was NT$482 Mil.
Total Current Assets was NT$1,053 Mil.
Total Current Liabilities was NT$445 Mil.
Net Income was 130.173 + 284.267 + 156.262 + 260.383 = NT$831 Mil.

Revenue was 467.429 + 702.774 + 491.895 + 716.363 = NT$2,378 Mil.
Gross Profit was 223.352 + 405.877 + 258.67 + 381.592 = NT$1,269 Mil.
Average Total Assets from the begining of last year (Dec23)
to the end of last year (Dec24) was
(4549.661 + 4652.5 + 4527.701 + 5140.138 + 5435.317) / 5 = NT$4861.0634 Mil.
Total Assets at the begining of last year (Dec23) was NT$4,550 Mil.
Long-Term Debt & Capital Lease Obligation was NT$520 Mil.
Total Current Assets was NT$1,193 Mil.
Total Current Liabilities was NT$441 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.

Taiwan Steel Union Co's current Net Income (TTM) was 687. ==> 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.

Taiwan Steel Union Co's current Cash Flow from Operations (TTM) was 984. ==> 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)
=686.753/5435.317
=0.12635013

ROA (Last Year)=Net Income/Total Assets (Dec23)
=831.085/4549.661
=0.18266965

Taiwan Steel Union Co's return on assets of this year was 0.12635013. Taiwan Steel Union Co's return on assets of last year was 0.18266965. ==> Last year is higher ==> Score 0.

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.

Taiwan Steel Union Co's current Net Income (TTM) was 687. Taiwan Steel Union Co's current Cash Flow from Operations (TTM) was 984. ==> 984 > 687 ==> 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
=481.522/5325.5492
=0.09041734

Gearing (Last Year: Dec24)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Dec23 to Dec24
=519.789/4861.0634
=0.10692907

Taiwan Steel Union Co's gearing of this year was 0.09041734. Taiwan Steel Union Co's gearing of last year was 0.10692907. ==> 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
=1052.937/445.311
=2.36449807

Current Ratio (Last Year: Dec24)=Total Current Assets/Total Current Liabilities
=1192.857/441.366
=2.70264814

Taiwan Steel Union Co's current ratio of this year was 2.36449807. Taiwan Steel Union Co's current ratio of last year was 2.70264814. ==> Last year's current ratio is higher ==> Score 0.

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.

Taiwan Steel Union Co's number of shares in issue this year was 112.142. Taiwan Steel Union Co's number of shares in issue last year was 112.416. ==> 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
=1128.245/2210.758
=0.51034306

Gross Margin (Last Year: TTM)=Gross Profit/Revenue
=1269.491/2378.461
=0.53374472

Taiwan Steel Union Co's gross margin of this year was 0.51034306. Taiwan Steel Union Co's gross margin of last year was 0.53374472. ==> 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)
=2210.758/5435.317
=0.40673948

Asset Turnover (Last Year)=Revenue/Total Assets at the Beginning of Last Year (Dec23)
=2378.461/4549.661
=0.52277763

Taiwan Steel Union Co's asset turnover of this year was 0.40673948. Taiwan Steel Union Co's asset turnover of last year was 0.52277763. ==> 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
=1+1+0+1+1+0+1+0+0
=5

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

Taiwan Steel Union Co has an F-score of 5 indicating the company's financial situation is typical for a stable company.

Frequently Asked Questions Learn more about Piotroski F-Score →
What does a Piotroski F-Score of 5 mean?
Taiwan Steel Union Co (TPE:6581) has a Piotroski F-Score of 5 as of Jul. 09, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Taiwan Steel Union Co and its competitors. This is 17% below median its historical median of 6.00. Over the past decade, Taiwan Steel Union Co's Piotroski F-Score has ranged from 4.00 to 8.00. According to the industry distribution chart, Taiwan Steel Union Co ranks #101 out of 238 companies in the Waste Management industry, placing it in the top 42.4%.
Is Taiwan Steel Union Co's Piotroski F-Score too high?
Taiwan Steel Union Co's current Piotroski F-Score of 5 is 17% below median its 10-year median of 6.00. Over the past 10 years, this metric has ranged from a low of 4.00 to a high of 8.00. The Waste Management industry median Piotroski F-Score is 5.00. Taiwan Steel Union Co's value of 5 is 0% at this industry median. Based on the distribution chart, Taiwan Steel Union Co ranks #101 out of 238 companies in the Waste Management industry, which is above the industry midpoint. Overall, Taiwan Steel Union Co has a GF Score™ of 87/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Taiwan Steel Union Co's Piotroski F-Score compare to WM and RSG?
According to the Waste Management industry distribution chart, Taiwan Steel Union Co ranks #101 out of 238 companies for Piotroski F-Score. This puts Taiwan Steel Union Co in the upper half of its industry. The industry median Piotroski F-Score is 5.00. Taiwan Steel Union Co's value of 5 is 0% at this benchmark. Historically, Taiwan Steel Union Co's own Piotroski F-Score has ranged from 4.00 to 8.00 over the past decade. While the company's 10-year median is 6.00 vs. the industry median of 5.00, Taiwan Steel Union Co has consistently been at 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 Waste Management company?
The median Piotroski F-Score among Waste Management companies is 5.00, based on 238 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. Taiwan Steel Union Co's current Piotroski F-Score of 5 is 0% at 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 Taiwan Steel Union Co and its competitors. For the Waste Management 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. Taiwan Steel Union Co's current Piotroski F-Score is 5, which is 17% below 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 Taiwan Steel Union Co stock overvalued right now?
Based on GuruFocus' analysis, Taiwan Steel Union Co (TPE:6581) is currently considered Fairly Valued. The stock's GF Value™ is NT$96.94, compared to a current price of NT$106.50 — trading 9.9% above its estimated fair value. The current Piotroski F-Score is 5, which is 17% below median its 10-year median of 6.00 and 0% at the Waste Management industry median of 5.00. Taiwan Steel Union Co's overall GF Score™ is 87/100 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 Taiwan Steel Union Co (TPE:6581), the current Piotroski F-Score is 5 as of Jul. 09, 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 Taiwan Steel Union Co (TPE:6581) Overvalued in 2026?

Based on GuruFocus' analysis, Taiwan Steel Union Co stock appears to be overvalued. The current stock price of NT$106.50 is trading 9.9% above its estimated GF Value™ of NT$96.94. GuruFocus considers Taiwan Steel Union Co to be Fairly Valued.

Key valuation signals for TPE:6581:

  • Piotroski F-Score: 5 (17% below median its 10-year median of 6.00)
  • GF Value™: NT$96.94 vs. price of NT$106.50 (9.9% above fair value)
  • GF Score™: 87/100 with 5 warning signs
  • Industry Position: 0% at the Waste Management median (#101 of 238)

No single metric tells the full story. See the TPE:6581 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Taiwan Steel Union Co Business Description

Address No. 36, Siangong North 1st Road, Changbin Industrial Zone, Shengang Township, Changhua, TWN, 50953
Taiwan Steel Union Co Ltd is a Taiwan-based waste management company. The company's main business is to dispose and reuse general industrial waste and hazardous industrial waste, as well as manufacture and trade non-ferrous metal (zinc oxide) and non-metallic mineral products.
87GF Score

Get the complete analysis for TPE:6581

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

NT$106.50
Price
NT$96.94
GF Value