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
TAC Co 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 TAC Co's Piotroski F-Score or its related term are showing as below:
TSE:4319'
s Piotroski F-Score Range Over the Past 10 Years
Min: 2 Med: 6 Max: 9
Current: 8
During the past 13 years, the highest Piotroski F-Score of TAC Co was 9. The lowest was 2. And the median was 6.
TAC Co (TSE:4319) 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.
TAC Co Piotroski F-Score Related Terms
TAC Co Piotroski F-Score Historical Data
* Premium members only.
The historical data trend for TAC 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:4319 vs EDU, TAL, LAUR: Piotroski F-Score Comparison
For the Education & Training Services subindustry, TAC 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.
TAC Co Piotroski F-Score vs Education Industry
For the Education industry and Consumer Defensive sector, TAC Co's Piotroski F-Score distribution charts can be found below:
* The bar in red indicates where TAC 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.
TAC Co's current Net Income (TTM) was 467.
==> 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.
TAC Co's current ratio of this year was 1.00322293. TAC Co's current ratio of last year was 0.93331878.
==> 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.
TAC Co's number of shares in issue this year was 18.134. TAC Co's number of shares in issue last year was 18.134.
==> 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.
TAC Co's gross margin of this year was 0.40152658. TAC Co's gross margin of last year was 0.36778823.
==> 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
TAC Co's asset turnover of this year was 0.92333482. TAC Co's asset turnover of last year was 0.91374354.
==> 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
TAC Co has an F-score of 8. It is a good or high score, which usually indicates a very healthy situation.
TAC Co (TSE:4319) has a Piotroski F-Score of 8 as of Jun. 29, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on TAC Co and its competitors. This is 33% above median its historical median of 6.00. Over the past decade, TAC Co's Piotroski F-Score has ranged from 2.00 to 9.00.
Is TAC Co's Piotroski F-Score too high?
TAC Co's current Piotroski F-Score of 8 is 33% above median its 10-year median of 6.00. Over the past 10 years, this metric has ranged from a low of 2.00 to a high of 9.00. The Education industry median Piotroski F-Score is 5.00. TAC Co's value of 8 is 60% above this industry median. Overall, TAC Co has a GF Score™ of 42/100, reflecting its overall financial health beyond just this single metric.
How does TAC Co's Piotroski F-Score compare to EDU and TAL?
TAC Co's Piotroski F-Score of 8 can be compared against companies in the Education industry. The industry median Piotroski F-Score is 5.00. TAC Co's value of 8 is 60% above this benchmark. Historically, TAC Co'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 6.00 vs. the industry median of 5.00, TAC Co 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 an Education company?
The median Piotroski F-Score among Education companies is 5.00, based on 254 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. TAC Co'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 TAC Co and its competitors. For the Education 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. TAC Co's current Piotroski F-Score is 8, which is 33% 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 TAC Co stock overvalued right now?
TAC Co (TSE:4319) has a current Piotroski F-Score of 8. The stock's GF Value™ is 円192.17, compared to a current price of 円347.00 — trading 80.6% above its estimated fair value. The current Piotroski F-Score is 8, which is 33% above median its 10-year median of 6.00 and 60% above the Education industry median of 5.00. TAC Co's overall GF Score™ is 42/100 with 10 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 TAC Co (TSE:4319), the current Piotroski F-Score is 8 as of Jun. 29, 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 TAC Co (TSE:4319) Overvalued in 2026?
Based on GuruFocus' analysis, TAC Co stock appears to be overvalued.
The current stock price of 円347.00 is trading 80.6% above its estimated GF Value™ of 円192.17.
Key valuation signals for TSE:4319:
Piotroski F-Score: 8 (33% above median its 10-year median of 6.00)
GF Value™: 円192.17 vs. price of 円347.00 (80.6% above fair value)
No single metric tells the full story. See the TSE:4319 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
TAC Co Ltd is a Japan-based company engages in providing educational services. The company is engaged in the personal education, corporate training, publishing, and manpower businesses. Its personal education business division offers preparatory courses for qualifications for individual students and provides training for corporations.
42GF Score
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Piotroski F-Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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