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Optorun CoTSE:6235 -0.69%79 Piotroski F-Score is 5 as of Jul. 15, 2026, which is at its 10-year median of 5.00. GuruFocus rates TSE:6235 with a GF Score™ of 79/100 and a GF Value™ of 円2,156.66 (Significantly Overvalued). The stock has 4 warning signs investors should review. Among 2,970 Industrial Products companies, Optorun Co ranks better than 56.46% 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
Optorun 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 Optorun Co's Piotroski F-Score or its related term are showing as below:
TSE:6235'
s Piotroski F-Score Range Over the Past 10 Years
Min: 3 Med: 5 Max: 7
Current: 5
During the past 11 years, the highest Piotroski F-Score of Optorun Co was 7. The lowest was 3. And the median was 5.
Optorun Co (TSE:6235) 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.
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.
Optorun Co Piotroski F-Score Related Terms
Optorun Co Piotroski F-Score Historical Data
* Premium members only.
The historical data trend for Optorun 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.
TSE:6235 vs GEV, ETN, PH: Piotroski F-Score Comparison
For the Specialty Industrial Machinery subindustry, Optorun 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.
Optorun Co Piotroski F-Score vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Optorun Co's Piotroski F-Score distribution charts can be found below:
* The bar in red indicates where Optorun Co's Piotroski F-Score falls into.
* 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.
*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.
Optorun Co's current Net Income (TTM) was 2,960.
==> 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.
Optorun Co's return on assets of this year was 0.03634173. Optorun Co's return on assets of last year was 0.08091951.
==> Last year is higher ==> Score 0.
Question 4. Quality of Earnings (Accrual)
Compare Cash flow return on assets (2) to return on assets (1)
Optorun Co's current ratio of this year was 2.85568779. Optorun Co's current ratio of last year was 3.69565609.
==> 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.
Optorun Co's number of shares in issue this year was 40.488. Optorun Co's number of shares in issue last year was 44.298.
==> 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.
Optorun Co's gross margin of this year was 0.33786103. Optorun Co's gross margin of last year was 0.44740912.
==> 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
Optorun Co's asset turnover of this year was 0.4157833. Optorun Co's asset turnover of last year was 0.4128613.
==> This year's asset turnover is higher. ==> Score 1.
Evaluation
Piotroski F-Score
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Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
Optorun Co has an F-score of 5 indicating the company's financial situation is typical for a stable company.
Optorun Co (TSE:6235) has a Piotroski F-Score of 5 as of Jul. 15, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Optorun Co and its competitors. This is near median its historical median of 5.00. Over the past decade, Optorun Co's Piotroski F-Score has ranged from 3.00 to 7.00. According to the industry distribution chart, Optorun Co ranks #1293 out of 2970 companies in the Industrial Products industry, placing it in the top 43.5%.
Is Optorun Co's Piotroski F-Score too high?
Optorun Co's current Piotroski F-Score of 5 is near median its 10-year median of 5.00. Over the past 10 years, this metric has ranged from a low of 3.00 to a high of 7.00. The Industrial Products industry median Piotroski F-Score is 5.00. Optorun Co's value of 5 is 0% at this industry median. Based on the distribution chart, Optorun Co ranks #1293 out of 2970 companies in the Industrial Products industry, which is above the industry midpoint. Overall, Optorun Co has a GF Score™ of 79/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Optorun Co's Piotroski F-Score compare to GEV and ETN?
According to the Industrial Products industry distribution chart, Optorun Co ranks #1293 out of 2970 companies for Piotroski F-Score. This puts Optorun Co in the upper half of its industry. The industry median Piotroski F-Score is 5.00. Optorun Co's value of 5 is 0% at this benchmark. Historically, Optorun Co's own Piotroski F-Score has ranged from 3.00 to 7.00 over the past decade. While the company's 10-year median is 5.00 vs. the industry median of 5.00, Optorun 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 an Industrial Products company?
The median Piotroski F-Score among Industrial Products companies is 5.00, based on 2,970 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. Optorun 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 Optorun Co and its competitors. For the Industrial Products 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. Optorun Co's current Piotroski F-Score is 5, which is near 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 Optorun Co stock overvalued right now?
Based on GuruFocus' analysis, Optorun Co (TSE:6235) is currently considered Significantly Overvalued. The stock's GF Value™ is 円2,156.66, compared to a current price of 円3,580.00 — trading 66% above its estimated fair value. The current Piotroski F-Score is 5, which is near median its 10-year median of 5.00 and 0% at the Industrial Products industry median of 5.00. Optorun Co's overall GF Score™ is 79/100 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 Optorun Co (TSE:6235), the current Piotroski F-Score is 5 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 Optorun Co (TSE:6235) Overvalued in 2026?
Based on GuruFocus' analysis, Optorun Co stock appears to be overvalued.
The current stock price of 円3,580.00 is trading 66% above its estimated GF Value™ of 円2,156.66.
GuruFocus considers Optorun Co to be Significantly Overvalued.
Key valuation signals for TSE:6235:
Piotroski F-Score: 5 (near median its 10-year median of 5.00)
GF Value™: 円2,156.66 vs. price of 円3,580.00 (66% above fair value)
Industry Position: 0% at the Industrial Products median (#1293 of 2970)
No single metric tells the full story. See the TSE:6235 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Optorun Co Ltd is engaged in manufacturing, distribution and import/export of vacuum coating machines, peripheral equipment, and units using vacuum coating products. Precise control and physical vapor deposition (PVD) speed stabilization, are the pillars of thin film manufacturing technology. It uses such technology for the performance of RF ion sources, optical film thickness monitors, and sensor units. The company utilizes vacuum deposition equipment in the antireflection coating and hard coating for mobile phones, heat transmission mirrors are used in medical lighting, DVD pickup lenses, and other products.
79GF Score
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