Rafael Microelectronics (ROCO:6568) Piotroski F-Score: 7 (As of Jul. 15, 2026) — 17% Above Median

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ROCO:6568 Rafael Microelectronics Inc ROCO:6568
72 GF Score
Price NT$154.00
GF Value NT$135.92
Valuation Modestly Overvalued
! 3 Warning Signs
View Full Analysis

What is Rafael Microelectronics Piotroski F-Score?

Rafael Microelectronics ROCO:6568 -4.64% 72 Piotroski F-Score is 7 as of Jul. 15, 2026, which is 17% above its 10-year median of 6.00. GuruFocus rates ROCO:6568 with a GF Score™ of 72/100 and a GF Value™ of NT$135.92 (Modestly Overvalued). The stock has 3 warning signs investors should review. Among 989 Semiconductors companies, Rafael Microelectronics ranks better than 93.12% 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

Rafael Microelectronics 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 Rafael Microelectronics's Piotroski F-Score or its related term are showing as below:

ROCO:6568' s Piotroski F-Score Range Over the Past 10 Years
Min: 4   Med: 6   Max: 7
Current: 7

During the past 12 years, the highest Piotroski F-Score of Rafael Microelectronics was 7. The lowest was 4. And the median was 6.

Rafael Microelectronics  (ROCO:6568) 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.


Rafael Microelectronics Piotroski F-Score Related Terms


Rafael Microelectronics Piotroski F-Score Historical Data

* Premium members only.

The historical data trend for Rafael Microelectronics'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.

Rafael Microelectronics Piotroski F-Score Chart

Rafael Microelectronics 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 5.00 4.00 5.00 7.00 7.00

Rafael Microelectronics 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 9.00 7.00 7.00

ROCO:6568 vs NVDA, AVGO, MU: Piotroski F-Score Comparison

For the Semiconductors subindustry, Rafael Microelectronics'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.


Rafael Microelectronics Piotroski F-Score vs Semiconductors Industry

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

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


ROCO:6568
72GF Score
Rafael Microelectronics Inc ROCO:6568
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 38.863 + 4.772 + 28.857 + 49.515 = NT$122 Mil.
Cash Flow from Operations was 64.596 + 43.308 + 68.657 + 115.236 = NT$292 Mil.
Revenue was 269.723 + 290.037 + 276.97 + 300.558 = NT$1,137 Mil.
Gross Profit was 118.16 + 106.589 + 101.292 + 133.812 = NT$460 Mil.
Average Total Assets from the begining of this year (Dec24)
to the end of this year (Dec25) was
(1665.941 + 1682.733 + 1631.412 + 1687.222 + 1795.293) / 5 = NT$1692.5202 Mil.
Total Assets at the begining of this year (Dec24) was NT$1,666 Mil.
Long-Term Debt & Capital Lease Obligation was NT$0 Mil.
Total Current Assets was NT$1,421 Mil.
Total Current Liabilities was NT$247 Mil.
Net Income was 27.464 + 35.664 + 31.774 + 22.203 = NT$117 Mil.

Revenue was 244.826 + 259.501 + 285.968 + 275.196 = NT$1,065 Mil.
Gross Profit was 101.55 + 109.792 + 104.315 + 98.481 = NT$414 Mil.
Average Total Assets from the begining of last year (Dec23)
to the end of last year (Dec24) was
(1593.666 + 1621.653 + 1663.981 + 1611.801 + 1665.941) / 5 = NT$1631.4084 Mil.
Total Assets at the begining of last year (Dec23) was NT$1,594 Mil.
Long-Term Debt & Capital Lease Obligation was NT$0 Mil.
Total Current Assets was NT$1,306 Mil.
Total Current Liabilities was NT$198 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.

Rafael Microelectronics's current Net Income (TTM) was 122. ==> 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.

Rafael Microelectronics's current Cash Flow from Operations (TTM) was 292. ==> 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)
=122.007/1665.941
=0.07323609

ROA (Last Year)=Net Income/Total Assets (Dec23)
=117.105/1593.666
=0.07348152

Rafael Microelectronics's return on assets of this year was 0.07323609. Rafael Microelectronics's return on assets of last year was 0.07348152. ==> 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.

Rafael Microelectronics's current Net Income (TTM) was 122. Rafael Microelectronics's current Cash Flow from Operations (TTM) was 292. ==> 292 > 122 ==> 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
=0/1692.5202
=0

Gearing (Last Year: Dec24)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Dec23 to Dec24
=0/1631.4084
=0

Rafael Microelectronics's gearing of this year was 0. Rafael Microelectronics'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
=1420.552/247.135
=5.74808101

Current Ratio (Last Year: Dec24)=Total Current Assets/Total Current Liabilities
=1306.081/197.538
=6.61179621

Rafael Microelectronics's current ratio of this year was 5.74808101. Rafael Microelectronics's current ratio of last year was 6.61179621. ==> 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.

Rafael Microelectronics's number of shares in issue this year was 30.814. Rafael Microelectronics's number of shares in issue last year was 31.574. ==> 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
=459.853/1137.288
=0.40434173

Gross Margin (Last Year: TTM)=Gross Profit/Revenue
=414.138/1065.491
=0.38868278

Rafael Microelectronics's gross margin of this year was 0.40434173. Rafael Microelectronics's gross margin of last year was 0.38868278. ==> This year's gross margin is higher. ==> Score 1.

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)
=1137.288/1665.941
=0.68267003

Asset Turnover (Last Year)=Revenue/Total Assets at the Beginning of Last Year (Dec23)
=1065.491/1593.666
=0.66857861

Rafael Microelectronics's asset turnover of this year was 0.68267003. Rafael Microelectronics's asset turnover of last year was 0.66857861. ==> 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+0+1+1+0+1+1+1
=7

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

Rafael Microelectronics 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?
Rafael Microelectronics (ROCO:6568) 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 Rafael Microelectronics and its competitors. This is 17% above median its historical median of 6.00. Over the past decade, Rafael Microelectronics' Piotroski F-Score has ranged from 4.00 to 7.00. According to the industry distribution chart, Rafael Microelectronics ranks #68 out of 989 companies in the Semiconductors industry, placing it in the top 6.9%.
Is Rafael Microelectronics' Piotroski F-Score too high?
Rafael Microelectronics' 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 4.00 to a high of 7.00. The Semiconductors industry median Piotroski F-Score is 5.00. Rafael Microelectronics' value of 7 is 40% above this industry median. Based on the distribution chart, Rafael Microelectronics ranks #68 out of 989 companies in the Semiconductors industry, which is in the top quartile — a strong position relative to peers. Overall, Rafael Microelectronics has a GF Score™ of 72/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Rafael Microelectronics' Piotroski F-Score compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, Rafael Microelectronics ranks #68 out of 989 companies for Piotroski F-Score. This places Rafael Microelectronics in the top 7% of its industry — outperforming the majority of peers. The industry median Piotroski F-Score is 5.00. Rafael Microelectronics' value of 7 is 40% above this benchmark. Historically, Rafael Microelectronics' own Piotroski F-Score has ranged from 4.00 to 7.00 over the past decade. While the company's 10-year median is 6.00 vs. the industry median of 5.00, Rafael Microelectronics 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 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. Rafael Microelectronics'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 Rafael Microelectronics 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. Rafael Microelectronics'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 Rafael Microelectronics stock overvalued right now?
Based on GuruFocus' analysis, Rafael Microelectronics (ROCO:6568) is currently considered Modestly Overvalued. The stock's GF Value™ is NT$135.92, compared to a current price of NT$154.00 — trading 13.3% 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 Semiconductors industry median of 5.00. Rafael Microelectronics' overall GF Score™ is 72/100 with 3 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 Rafael Microelectronics (ROCO:6568), 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 Rafael Microelectronics (ROCO:6568) Overvalued in 2026?

Based on GuruFocus' analysis, Rafael Microelectronics stock appears to be overvalued. The current stock price of NT$154.00 is trading 13.3% above its estimated GF Value™ of NT$135.92. GuruFocus considers Rafael Microelectronics to be Modestly Overvalued.

Key valuation signals for ROCO:6568:

  • Piotroski F-Score: 7 (17% above median its 10-year median of 6.00)
  • GF Value™: NT$135.92 vs. price of NT$154.00 (13.3% above fair value)
  • GF Score™: 72/100 with 3 warning signs
  • Industry Position: 40% above the Semiconductors median (#68 of 989)

No single metric tells the full story. See the ROCO:6568 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Rafael Microelectronics Business Description

Address Chenggong 12th Street, 8th Floor, No.28, Hsinchu County, Zhubei, TWN, 30264
Rafael Microelectronics Inc engaged in the research and development, design, manufacturing, and marketing of radio frequency integrated circuits (RF ICs), RF integrated systems, and related products. Its products include IOT connectivity, optical networking, satellite communication, STB receivers, and TV receivers. The company's geographical segments include Taiwan, China, Europe and America, and Other parts of Asia.
72GF Score

Get the complete analysis for ROCO:6568

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

NT$154.00
Price
NT$135.92
GF Value