Tekcore Co (ROCO:3339) Piotroski F-Score: 3 (As of Jul. 01, 2026) — 50% Below Median


ROCO:3339 Tekcore Co Ltd ROCO:3339
56 GF Score
Price NT$43.15
GF Value NT$39.44
Valuation Fairly Valued
! 4 Warning Signs
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What is Tekcore Co Piotroski F-Score?

Tekcore Co ROCO:3339 +0.58% 56 Piotroski F-Score is 3 as of Jul. 01, 2026, which is 50% below its 10-year median of 6.00. GuruFocus rates ROCO:3339 with a GF Score™ of 56/100 and a GF Value™ of NT$39.44 (Fairly Valued). The stock has 4 warning signs investors should review. Among 989 Semiconductors companies, Tekcore 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

Tekcore 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 Tekcore Co's Piotroski F-Score or its related term are showing as below:

ROCO:3339' s Piotroski F-Score Range Over the Past 10 Years
Min: 3   Med: 6   Max: 8
Current: 3

During the past 13 years, the highest Piotroski F-Score of Tekcore Co was 8. The lowest was 3. And the median was 6.

Tekcore Co  (ROCO:3339) 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.


Tekcore Co Piotroski F-Score Related Terms


Tekcore Co Piotroski F-Score Historical Data

* Premium members only.

The historical data trend for Tekcore 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.

Tekcore Co Piotroski F-Score Chart

Tekcore 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 8.00 3.00 6.00 6.00 3.00

Tekcore 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 6.00 4.00 3.00 3.00

ROCO:3339 vs NVDA, AVGO, MU: Piotroski F-Score Comparison

For the Semiconductors subindustry, Tekcore 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.


Tekcore Co Piotroski F-Score vs Semiconductors Industry

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

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


ROCO:3339
56GF Score
Tekcore Co Ltd ROCO:3339
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 -10.863 + -67.986 + -21.698 + -27.736 = NT$-128.3 Mil.
Cash Flow from Operations was 5.636 + -15.118 + -8.384 + -33.474 = NT$-51.3 Mil.
Revenue was 134.203 + 259.518 + 222.877 + 202.193 = NT$818.8 Mil.
Gross Profit was 7.214 + 8.58 + 9.709 + 15.913 = NT$41.4 Mil.
Average Total Assets from the begining of this year (Dec24)
to the end of this year (Dec25) was
(1096.725 + 1020.783 + 1048.759 + 1082.071 + 1249.246) / 5 = NT$1099.5168 Mil.
Total Assets at the begining of this year (Dec24) was NT$1,096.7 Mil.
Long-Term Debt & Capital Lease Obligation was NT$72.6 Mil.
Total Current Assets was NT$723.6 Mil.
Total Current Liabilities was NT$469.8 Mil.
Net Income was 8.662 + 8.722 + 3 + -4.909 = NT$15.5 Mil.

Revenue was 143.831 + 168.806 + 169.046 + 143.172 = NT$624.9 Mil.
Gross Profit was 22.476 + 24.092 + 28.374 + 12.556 = NT$87.5 Mil.
Average Total Assets from the begining of last year (Dec23)
to the end of last year (Dec24) was
(1090.528 + 1111.592 + 1125.073 + 1118.587 + 1096.725) / 5 = NT$1108.501 Mil.
Total Assets at the begining of last year (Dec23) was NT$1,090.5 Mil.
Long-Term Debt & Capital Lease Obligation was NT$6.1 Mil.
Total Current Assets was NT$813.9 Mil.
Total Current Liabilities was NT$158.7 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.

Tekcore Co's current Net Income (TTM) was -128.3. ==> 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.

Tekcore Co's current Cash Flow from Operations (TTM) was -51.3. ==> 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)
=-128.283/1096.725
=-0.11696916

ROA (Last Year)=Net Income/Total Assets (Dec23)
=15.475/1090.528
=0.01419037

Tekcore Co's return on assets of this year was -0.11696916. Tekcore Co's return on assets of last year was 0.01419037. ==> 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.

Tekcore Co's current Net Income (TTM) was -128.3. Tekcore Co's current Cash Flow from Operations (TTM) was -51.3. ==> -51.3 > -128.3 ==> 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
=72.598/1099.5168
=0.06602719

Gearing (Last Year: Dec24)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Dec23 to Dec24
=6.078/1108.501
=0.00548308

Tekcore Co's gearing of this year was 0.06602719. Tekcore Co's gearing of last year was 0.00548308. ==> 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
=723.563/469.751
=1.54031178

Current Ratio (Last Year: Dec24)=Total Current Assets/Total Current Liabilities
=813.898/158.682
=5.12911357

Tekcore Co's current ratio of this year was 1.54031178. Tekcore Co's current ratio of last year was 5.12911357. ==> 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.

Tekcore Co's number of shares in issue this year was 63.304. Tekcore Co's number of shares in issue last year was 66.592. ==> 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
=41.416/818.791
=0.05058189

Gross Margin (Last Year: TTM)=Gross Profit/Revenue
=87.498/624.855
=0.14002929

Tekcore Co's gross margin of this year was 0.05058189. Tekcore Co's gross margin of last year was 0.14002929. ==> 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)
=818.791/1096.725
=0.74657822

Asset Turnover (Last Year)=Revenue/Total Assets at the Beginning of Last Year (Dec23)
=624.855/1090.528
=0.57298391

Tekcore Co's asset turnover of this year was 0.74657822. Tekcore Co's asset turnover of last year was 0.57298391. ==> 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
=0+0+0+1+0+0+1+0+1
=3

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

Tekcore 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?
Tekcore Co (ROCO:3339) has a Piotroski F-Score of 3 as of Jul. 01, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Tekcore Co and its competitors. This is 50% below median its historical median of 6.00. Over the past decade, Tekcore Co's Piotroski F-Score has ranged from 3.00 to 8.00. According to the industry distribution chart, Tekcore Co ranks #776 out of 989 companies in the Semiconductors industry, placing it in the top 78.5%.
Is Tekcore Co's Piotroski F-Score too high?
Tekcore Co's current Piotroski F-Score of 3 is 50% below median its 10-year median of 6.00. Over the past 10 years, this metric has ranged from a low of 3.00 to a high of 8.00. The Semiconductors industry median Piotroski F-Score is 5.00. Tekcore Co's value of 3 is 40% below this industry median. Based on the distribution chart, Tekcore Co ranks #776 out of 989 companies in the Semiconductors industry, which is in the bottom quartile relative to peers. Overall, Tekcore Co has a GF Score™ of 56/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Tekcore Co's Piotroski F-Score compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, Tekcore Co ranks #776 out of 989 companies for Piotroski F-Score. This places Tekcore Co in the lower half of its industry. The industry median Piotroski F-Score is 5.00. Tekcore Co's value of 3 is 40% below this benchmark. Historically, Tekcore Co's own Piotroski F-Score has ranged from 3.00 to 8.00 over the past decade. While the company's 10-year median is 6.00 vs. the industry median of 5.00, Tekcore 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. Tekcore 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 Tekcore 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. Tekcore Co's current Piotroski F-Score is 3, which is 50% 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 Tekcore Co stock overvalued right now?
Based on GuruFocus' analysis, Tekcore Co (ROCO:3339) is currently considered Fairly Valued. The stock's GF Value™ is NT$39.44, compared to a current price of NT$43.15 — trading 9.4% above its estimated fair value. The current Piotroski F-Score is 3, which is 50% below median its 10-year median of 6.00 and 40% below the Semiconductors industry median of 5.00. Tekcore Co's overall GF Score™ is 56/100 with 4 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 Tekcore Co (ROCO:3339), the current Piotroski F-Score is 3 as of Jul. 01, 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 Tekcore Co (ROCO:3339) Overvalued in 2026?

Based on GuruFocus' analysis, Tekcore Co stock appears to be overvalued. The current stock price of NT$43.15 is trading 9.4% above its estimated GF Value™ of NT$39.44. GuruFocus considers Tekcore Co to be Fairly Valued.

Key valuation signals for ROCO:3339:

  • Piotroski F-Score: 3 (50% below median its 10-year median of 6.00)
  • GF Value™: NT$39.44 vs. price of NT$43.15 (9.4% above fair value)
  • GF Score™: 56/100 with 4 warning signs
  • Industry Position: 40% below the Semiconductors median (#776 of 989)

No single metric tells the full story. See the ROCO:3339 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Tekcore Co Business Description

Address No. 18, Ziqiang 3rd Road, Nan-Kung Industrial Zone, Nantou County, Nantou, TWN
Tekcore Co Ltd engages in the manufacturing and sales of epitaxial wafers and chips for light-emitting diodes. The company specializes in high-brightness chips in green, blue, and ultraviolet wavelengths, as well as red, yellow, and orange chips to cover the various spectra of visible light. Its products are used in various applications, including large-scale displays and billboards; optical fiber cables; indicator lights; LCD and projection backlighting; low-light environments; miniaturized light sources; cell phones, cameras, and other small electronic displays.
56GF Score

Get the complete analysis for ROCO:3339

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

NT$43.15
Price
NT$39.44
GF Value