SDAEF (Sumida) Piotroski F-Score: 8 (As of Aug. 10, 2026) — 60% Above Median

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

SDAEF Sumida Corp SDAEF
74 GF Score
Price $6.78
GF Value $6.55
! 7 Warning Signs
View Full Analysis

What is Sumida Piotroski F-Score?

Sumida SDAEF 74 Piotroski F-Score is 8 as of Aug. 10, 2026, which is 60% above its 10-year median of 5.00. GuruFocus rates SDAEF with a GF Score™ of 74/100 and a GF Value™ of $6.55. The stock has 7 warning signs investors should review. Among 2,419 Hardware companies, Sumida ranks better than 98.68% on this metric.

Good Sign:

Piotroski F-Score is 8, 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

Sumida has an F-score of 8. It is a good or high score, which usually indicates a very healthy situation.

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

SDAEF' s Piotroski F-Score Range Over the Past 10 Years
Min: 2   Med: 5   Max: 9
Current: 8

During the past 13 years, the highest Piotroski F-Score of Sumida was 9. The lowest was 2. And the median was 5.

Sumida  (OTCPK:SDAEF) 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.


Sumida Piotroski F-Score Related Terms


Sumida Piotroski F-Score Historical Data

* Premium members only.

The historical data trend for Sumida'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.

Sumida Piotroski F-Score Chart

Sumida 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 7.00 5.00 5.00 6.00

Sumida Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 5.00 7.00 6.00 8.00 8.00

SDAEF vs APH, GLW, TEL: Piotroski F-Score Comparison

For the Electronic Components subindustry, Sumida'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.


Sumida Piotroski F-Score vs Hardware Industry

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

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


SDAEF
74GF Score
Sumida Corp SDAEF
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 (Jun26) TTM:Last Year (Jun25) TTM:
Net Income was 6.831 + 6.035 + 4.575 + -3.023 = $14 Mil.
Cash Flow from Operations was 35.202 + 34.006 + 18.572 + 13.871 = $102 Mil.
Revenue was 249.596 + 250.893 + 242.169 + 257.697 = $1,000 Mil.
Gross Profit was 35.77 + 38.463 + 31.049 + 32.419 = $138 Mil.
Average Total Assets from the begining of this year (Jun25)
to the end of this year (Jun26) was
(983.24 + 1023.299 + 1049.649 + 1039.269 + 1051.222) / 5 = $1029.3358 Mil.
Total Assets at the begining of this year (Jun25) was $983 Mil.
Long-Term Debt & Capital Lease Obligation was $180 Mil.
Total Current Assets was $496 Mil.
Total Current Liabilities was $415 Mil.
Net Income was 5.288 + -4.239 + 3.925 + 7.489 = $12 Mil.

Revenue was 255.117 + 223.919 + 237.425 + 247.641 = $964 Mil.
Gross Profit was 33.675 + 28.645 + 29.405 + 36.371 = $128 Mil.
Average Total Assets from the begining of last year (Jun24)
to the end of last year (Jun25) was
(1011.022 + 1002.665 + 960.678 + 966.807 + 983.24) / 5 = $984.8824 Mil.
Total Assets at the begining of last year (Jun24) was $1,011 Mil.
Long-Term Debt & Capital Lease Obligation was $133 Mil.
Total Current Assets was $477 Mil.
Total Current Liabilities was $408 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.

Sumida's current Net Income (TTM) was 14. ==> 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.

Sumida's current Cash Flow from Operations (TTM) was 102. ==> 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 (Jun25)
=14.418/983.24
=0.01466376

ROA (Last Year)=Net Income/Total Assets (Jun24)
=12.463/1011.022
=0.01232713

Sumida's return on assets of this year was 0.01466376. Sumida's return on assets of last year was 0.01232713. ==> 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.

Sumida's current Net Income (TTM) was 14. Sumida's current Cash Flow from Operations (TTM) was 102. ==> 102 > 14 ==> 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: Jun26)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Jun25 to Jun26
=179.965/1029.3358
=0.17483604

Gearing (Last Year: Jun25)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Jun24 to Jun25
=132.991/984.8824
=0.13503237

Sumida's gearing of this year was 0.17483604. Sumida's gearing of last year was 0.13503237. ==> 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: Jun26)=Total Current Assets/Total Current Liabilities
=496.044/415.42
=1.19407828

Current Ratio (Last Year: Jun25)=Total Current Assets/Total Current Liabilities
=477.106/408.109
=1.16906513

Sumida's current ratio of this year was 1.19407828. Sumida's current ratio of last year was 1.16906513. ==> 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.

Sumida's number of shares in issue this year was 33.195. Sumida's number of shares in issue last year was 33.308. ==> 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
=137.701/1000.355
=0.13765213

Gross Margin (Last Year: TTM)=Gross Profit/Revenue
=128.096/964.102
=0.13286561

Sumida's gross margin of this year was 0.13765213. Sumida's gross margin of last year was 0.13286561. ==> 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 (Jun25)
=1000.355/983.24
=1.01740674

Asset Turnover (Last Year)=Revenue/Total Assets at the Beginning of Last Year (Jun24)
=964.102/1011.022
=0.95359151

Sumida's asset turnover of this year was 1.01740674. Sumida's asset turnover of last year was 0.95359151. ==> 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+0+1+1+1+1
=8

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

Sumida has an F-score of 8. 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 8 mean?
Sumida (SDAEF) has a Piotroski F-Score of 8 as of Aug. 10, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Sumida and its competitors. This is 60% above median its historical median of 5.00. Over the past decade, Sumida's Piotroski F-Score has ranged from 2.00 to 9.00. According to the industry distribution chart, Sumida ranks #32 out of 2419 companies in the Hardware industry, placing it in the top 1.3%.
Is Sumida's Piotroski F-Score too high?
Sumida's current Piotroski F-Score of 8 is 60% above 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 9.00. The Hardware industry median Piotroski F-Score is 5.00. Sumida's value of 8 is 60% above this industry median. Based on the distribution chart, Sumida ranks #32 out of 2419 companies in the Hardware industry, which is in the top quartile — a strong position relative to peers. Overall, Sumida has a GF Score™ of 74/100, reflecting its overall financial health beyond just this single metric.
How does Sumida's Piotroski F-Score compare to APH and GLW?
According to the Hardware industry distribution chart, Sumida ranks #32 out of 2419 companies for Piotroski F-Score. This places Sumida in the top 1% of its industry — outperforming the majority of peers. The industry median Piotroski F-Score is 5.00. Sumida's value of 8 is 60% above this benchmark. Historically, Sumida's own Piotroski F-Score has ranged from 2.00 to 9.00 over the past decade. While the company's 10-year median is 5.00 vs. the industry median of 5.00, Sumida 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 Hardware company?
The median Piotroski F-Score among Hardware companies is 5.00, based on 2,419 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. Sumida's current Piotroski F-Score of 8 is 60% 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 Sumida 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. Sumida's current Piotroski F-Score is 8, which is 60% above 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 Sumida stock overvalued right now?
Sumida (SDAEF) has a current Piotroski F-Score of 8. The stock's GF Value™ is $6.55, compared to a current price of $6.78 — trading 3.5% above its estimated fair value. The current Piotroski F-Score is 8, which is 60% above median its 10-year median of 5.00 and 60% above the Hardware industry median of 5.00. Sumida's overall GF Score™ is 74/100 with 7 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 Sumida (SDAEF), the current Piotroski F-Score is 8 as of Aug. 10, 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 Sumida (SDAEF) Overvalued in 2026?

Based on GuruFocus' analysis, Sumida stock appears to be overvalued. The current stock price of $6.78 is trading 3.5% above its estimated GF Value™ of $6.55.

Key valuation signals for SDAEF:

  • Piotroski F-Score: 8 (60% above median its 10-year median of 5.00)
  • GF Value™: $6.55 vs. price of $6.78 (3.5% above fair value)
  • GF Score™: 74/100 with 7 warning signs
  • Industry Position: 60% above the Hardware median (#32 of 2419)

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


Sumida Business Description

Other Exchanges 6817:JapanJ87:Germany
Address KDX Ginza East Building 7Floor, 2-7-2 Irifune 3-chome, Chuo-ku, Tokyo, JPN, 104-0042
Sumida Corp designs, manufactures, and sells electronic components and modules for consumer electronics, automotive, and industrial markets in Japan, rest of Asia, Europe, and North and South America. Its products include audio and visual devices, office automation equipment, automotive-related and industrial equipment, and other electronic components. It also provides the complimentary products and services such as magnetic materials, ceramics, flexible connectors and electronic manufacturing services (EMS).
74GF Score

Get the complete analysis for SDAEF

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

$6.78
Price
$6.55
GF Value