Sunflex Technology (ROCO:3390) Piotroski F-Score: 2 (As of Jul. 07, 2026) — 60% Below Median


ROCO:3390 Sunflex Technology Corp ROCO:3390
62 GF Score
Price NT$27.95
GF Value NT$19.99
Valuation Significantly Overvalued
! 6 Warning Signs
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What is Sunflex Technology Piotroski F-Score?

Sunflex Technology ROCO:3390 -0.71% 62 Piotroski F-Score is 2 as of Jul. 07, 2026, which is 60% below its 10-year median of 5.00. GuruFocus rates ROCO:3390 with a GF Score™ of 62/100 and a GF Value™ of NT$19.99 (Significantly Overvalued). The stock has 6 warning signs investors should review. Among 2,427 Hardware companies, Sunflex Technology ranks worse than 93.37% on this metric.

Warning Sign:

Piotroski F-Score of 2 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

Sunflex Technology has an F-score of 2. It is a bad or low score, which usually implies poor business operation.

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

ROCO:3390' s Piotroski F-Score Range Over the Past 10 Years
Min: 2   Med: 5   Max: 8
Current: 2

During the past 13 years, the highest Piotroski F-Score of Sunflex Technology was 8. The lowest was 2. And the median was 5.

Sunflex Technology  (ROCO:3390) 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.


Sunflex Technology Piotroski F-Score Related Terms


Sunflex Technology Piotroski F-Score Historical Data

* Premium members only.

The historical data trend for Sunflex Technology'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.

Sunflex Technology Piotroski F-Score Chart

Sunflex Technology 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 6.00 8.00 2.00

Sunflex Technology 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 8.00 6.00 3.00 3.00 2.00

ROCO:3390 vs APH, GLW: Piotroski F-Score Comparison

For the Electronic Components subindustry, Sunflex Technology'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.


Sunflex Technology Piotroski F-Score vs Hardware Industry

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

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


ROCO:3390
62GF Score
Sunflex Technology Corp ROCO:3390
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 5.455 + -66.01 + 6.071 + 12.241 = NT$-42.2 Mil.
Cash Flow from Operations was -19.114 + -8.474 + -12.735 + -8.322 = NT$-48.6 Mil.
Revenue was 195.002 + 182.615 + 198.372 + 216.271 = NT$792.3 Mil.
Gross Profit was 32.42 + 15.422 + 26.909 + 36.893 = NT$111.6 Mil.
Average Total Assets from the begining of this year (Dec24)
to the end of this year (Dec25) was
(1478.733 + 1985.235 + 1794.642 + 1802.923 + 1796.592) / 5 = NT$1771.625 Mil.
Total Assets at the begining of this year (Dec24) was NT$1,478.7 Mil.
Long-Term Debt & Capital Lease Obligation was NT$190.5 Mil.
Total Current Assets was NT$1,080.5 Mil.
Total Current Liabilities was NT$203.5 Mil.
Net Income was 36.352 + 43.51 + 0.994 + 16.22 = NT$97.1 Mil.

Revenue was 179.026 + 242.847 + 225.137 + 209.018 = NT$856.0 Mil.
Gross Profit was 27.438 + 57.483 + 38.29 + 41.082 = NT$164.3 Mil.
Average Total Assets from the begining of last year (Dec23)
to the end of last year (Dec24) was
(1826.995 + 1853.208 + 1916.567 + 1476.512 + 1478.733) / 5 = NT$1710.403 Mil.
Total Assets at the begining of last year (Dec23) was NT$1,827.0 Mil.
Long-Term Debt & Capital Lease Obligation was NT$3.9 Mil.
Total Current Assets was NT$1,167.0 Mil.
Total Current Liabilities was NT$227.1 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.

Sunflex Technology's current Net Income (TTM) was -42.2. ==> 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.

Sunflex Technology's current Cash Flow from Operations (TTM) was -48.6. ==> 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)
=-42.243/1478.733
=-0.02856702

ROA (Last Year)=Net Income/Total Assets (Dec23)
=97.076/1826.995
=0.05313425

Sunflex Technology's return on assets of this year was -0.02856702. Sunflex Technology's return on assets of last year was 0.05313425. ==> 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.

Sunflex Technology's current Net Income (TTM) was -42.2. Sunflex Technology's current Cash Flow from Operations (TTM) was -48.6. ==> -48.6 <= -42.2 ==> 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
=190.477/1771.625
=0.10751542

Gearing (Last Year: Dec24)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Dec23 to Dec24
=3.936/1710.403
=0.00230121

Sunflex Technology's gearing of this year was 0.10751542. Sunflex Technology's gearing of last year was 0.00230121. ==> 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
=1080.485/203.521
=5.30896075

Current Ratio (Last Year: Dec24)=Total Current Assets/Total Current Liabilities
=1166.988/227.115
=5.13831319

Sunflex Technology's current ratio of this year was 5.30896075. Sunflex Technology's current ratio of last year was 5.13831319. ==> 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.

Sunflex Technology's number of shares in issue this year was 78.986. Sunflex Technology's number of shares in issue last year was 76.119. ==> 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
=111.644/792.26
=0.14091839

Gross Margin (Last Year: TTM)=Gross Profit/Revenue
=164.293/856.028
=0.1919248

Sunflex Technology's gross margin of this year was 0.14091839. Sunflex Technology's gross margin of last year was 0.1919248. ==> 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)
=792.26/1478.733
=0.53576947

Asset Turnover (Last Year)=Revenue/Total Assets at the Beginning of Last Year (Dec23)
=856.028/1826.995
=0.46854425

Sunflex Technology's asset turnover of this year was 0.53576947. Sunflex Technology's asset turnover of last year was 0.46854425. ==> 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+0+0+1+0+0+1
=2

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

Sunflex Technology has an F-score of 2. 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 2 mean?
Sunflex Technology (ROCO:3390) has a Piotroski F-Score of 2 as of Jul. 07, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Sunflex Technology and its competitors. This is 60% below median its historical median of 5.00. Over the past decade, Sunflex Technology's Piotroski F-Score has ranged from 2.00 to 8.00. According to the industry distribution chart, Sunflex Technology ranks #2266 out of 2427 companies in the Hardware industry, placing it in the top 93.4%.
Is Sunflex Technology's Piotroski F-Score too high?
Sunflex Technology's current Piotroski F-Score of 2 is 60% below median its 10-year median of 5.00. Over the past 10 years, this metric has ranged from a low of 2.00 to a high of 8.00. The Hardware industry median Piotroski F-Score is 5.00. Sunflex Technology's value of 2 is 60% below this industry median. Based on the distribution chart, Sunflex Technology ranks #2266 out of 2427 companies in the Hardware industry, which is in the bottom quartile relative to peers. Overall, Sunflex Technology has a GF Score™ of 62/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sunflex Technology's Piotroski F-Score compare to APH and GLW?
According to the Hardware industry distribution chart, Sunflex Technology ranks #2266 out of 2427 companies for Piotroski F-Score. This places Sunflex Technology in the lower half of its industry. The industry median Piotroski F-Score is 5.00. Sunflex Technology's value of 2 is 60% below this benchmark. Historically, Sunflex Technology'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 5.00 vs. the industry median of 5.00, Sunflex Technology 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 Hardware company?
The median Piotroski F-Score among Hardware companies is 5.00, based on 2,427 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. Sunflex Technology's current Piotroski F-Score of 2 is 60% 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 Sunflex Technology and its competitors. For the Hardware 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. Sunflex Technology's current Piotroski F-Score is 2, which is 60% below median its own 10-year median of 5.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sunflex Technology stock overvalued right now?
Based on GuruFocus' analysis, Sunflex Technology (ROCO:3390) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$19.99, compared to a current price of NT$27.95 — trading 39.8% above its estimated fair value. The current Piotroski F-Score is 2, which is 60% below median its 10-year median of 5.00 and 60% below the Hardware industry median of 5.00. Sunflex Technology's overall GF Score™ is 62/100 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 Sunflex Technology (ROCO:3390), the current Piotroski F-Score is 2 as of Jul. 07, 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 Sunflex Technology (ROCO:3390) Overvalued in 2026?

Based on GuruFocus' analysis, Sunflex Technology stock appears to be overvalued. The current stock price of NT$27.95 is trading 39.8% above its estimated GF Value™ of NT$19.99. GuruFocus considers Sunflex Technology to be Significantly Overvalued.

Key valuation signals for ROCO:3390:

  • Piotroski F-Score: 2 (60% below median its 10-year median of 5.00)
  • GF Value™: NT$19.99 vs. price of NT$27.95 (39.8% above fair value)
  • GF Score™: 62/100 with 6 warning signs
  • Industry Position: 60% below the Hardware median (#2266 of 2427)

No single metric tells the full story. See the ROCO:3390 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Sunflex Technology Business Description

Address No. 522, Nanshang Road, Guishan District, Taoyuan, TWN, 333014
Sunflex Technology Corp is the manufacture of electronic components and international trades. It provides single and double-sided flexible PCBs that are applied in the manufacturing of mobile phones, notebook computers, disk players, and LCDs. The company applications include touch panels, liquid crystal module, computer accessories, and a light bar. The Company's operating revenue is mainly derived from the production and sales of customized flexible circuit boards.
62GF Score

Get the complete analysis for ROCO:3390

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

NT$27.95
Price
NT$19.99
GF Value