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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.
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.
Sanko Diecasting (Thailand) PCL Piotroski F-Score Related Terms
Sanko Diecasting (Thailand) PCL Piotroski F-Score Historical Data
* 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.
BKK:SANKO vs ORLY, AZO: Piotroski F-Score Comparison
For the Auto Parts subindustry, Sanko Diecasting (Thailand) PCL'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.
Sanko Diecasting (Thailand) PCL Piotroski F-Score vs Vehicles & Parts Industry
For the Vehicles & Parts industry and Consumer Cyclical sector, Sanko Diecasting (Thailand) PCL's Piotroski F-Score distribution charts can be found below:
* The bar in red indicates where Sanko Diecasting (Thailand) PCL'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.
Sanko Diecasting (Thailand) PCL's current Net Income (TTM) was 71.1.
==> 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.
Sanko Diecasting (Thailand) PCL's current Cash Flow from Operations (TTM) was 115.1.
==> 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.
Sanko Diecasting (Thailand) PCL's return on assets of this year was 0.12066754. Sanko Diecasting (Thailand) PCL's return on assets of last year was 0.1128955.
==> This year is higher. ==> Score 1.
Question 4. Quality of Earnings (Accrual)
Compare Cash flow return on assets (2) to return on assets (1)
Sanko Diecasting (Thailand) PCL's gearing of this year was 0.14783544. Sanko Diecasting (Thailand) PCL's gearing of last year was 0.10706213.
==> 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
Sanko Diecasting (Thailand) PCL's current ratio of this year was 2.05769892. Sanko Diecasting (Thailand) PCL's current ratio of last year was 1.66951653.
==> 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.
Sanko Diecasting (Thailand) PCL's number of shares in issue this year was 316.662. Sanko Diecasting (Thailand) PCL's number of shares in issue last year was 316.663.
==> 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.
Sanko Diecasting (Thailand) PCL's gross margin of this year was 0.22394658. Sanko Diecasting (Thailand) PCL's gross margin of last year was 0.19126818.
==> 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
Sanko Diecasting (Thailand) PCL's asset turnover of this year was 1.22195057. Sanko Diecasting (Thailand) PCL's asset turnover of last year was 1.45751925.
==> Last year's asset turnover is higher ==> Score 0.
Evaluation
Piotroski F-Score
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7
Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
Sanko Diecasting (Thailand) PCL has an F-score of 7. It is a good or high score, which usually indicates a very healthy situation.
Sanko Diecasting (Thailand) PCL (BKK:SANKO) has a Piotroski F-Score of 7 as of Aug. 11, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Sanko Diecasting (Thailand) PCL and its competitors. This is near median its historical median of 7.00. Over the past decade, Sanko Diecasting (Thailand) PCL's Piotroski F-Score has ranged from 3.00 to 9.00. According to the industry distribution chart, Sanko Diecasting (Thailand) PCL ranks #138 out of 1278 companies in the Vehicles & Parts industry, placing it in the top 10.8%.
Is Sanko Diecasting (Thailand) PCL's Piotroski F-Score too high?
Sanko Diecasting (Thailand) PCL's current Piotroski F-Score of 7 is near median its 10-year median of 7.00. Over the past 10 years, this metric has ranged from a low of 3.00 to a high of 9.00. The Vehicles & Parts industry median Piotroski F-Score is 5.00. Sanko Diecasting (Thailand) PCL's value of 7 is 40% above this industry median. Based on the distribution chart, Sanko Diecasting (Thailand) PCL ranks #138 out of 1278 companies in the Vehicles & Parts industry, which is in the top quartile — a strong position relative to peers. Overall, Sanko Diecasting (Thailand) PCL has a GF Score™ of 76/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sanko Diecasting (Thailand) PCL's Piotroski F-Score compare to ORLY and AZO?
According to the Vehicles & Parts industry distribution chart, Sanko Diecasting (Thailand) PCL ranks #138 out of 1278 companies for Piotroski F-Score. This places Sanko Diecasting (Thailand) PCL in the top 11% of its industry — outperforming the majority of peers. The industry median Piotroski F-Score is 5.00. Sanko Diecasting (Thailand) PCL's value of 7 is 40% above this benchmark. Historically, Sanko Diecasting (Thailand) PCL's own Piotroski F-Score has ranged from 3.00 to 9.00 over the past decade. While the company's 10-year median is 7.00 vs. the industry median of 5.00, Sanko Diecasting (Thailand) PCL 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 Vehicles & Parts company?
The median Piotroski F-Score among Vehicles & Parts companies is 5.00, based on 1,278 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. Sanko Diecasting (Thailand) PCL'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 Sanko Diecasting (Thailand) PCL and its competitors. For the Vehicles & Parts 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. Sanko Diecasting (Thailand) PCL's current Piotroski F-Score is 7, which is near median its own 10-year median of 7.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sanko Diecasting (Thailand) PCL stock overvalued right now?
Based on GuruFocus' analysis, Sanko Diecasting (Thailand) PCL (BKK:SANKO) is currently considered Modestly Overvalued. The stock's GF Value™ is ฿1.08, compared to a current price of ฿1.33 — trading 23.1% above its estimated fair value. The current Piotroski F-Score is 7, which is near median its 10-year median of 7.00 and 40% above the Vehicles & Parts industry median of 5.00. Sanko Diecasting (Thailand) PCL's overall GF Score™ is 76/100 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 Sanko Diecasting (Thailand) PCL (BKK:SANKO), the current Piotroski F-Score is 7 as of Aug. 11, 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 Sanko Diecasting (Thailand) PCL (BKK:SANKO) Overvalued in 2026?
Based on GuruFocus' analysis, Sanko Diecasting (Thailand) PCL stock appears to be overvalued.
The current stock price of ฿1.33 is trading 23.1% above its estimated GF Value™ of ฿1.08.
GuruFocus considers Sanko Diecasting (Thailand) PCL to be Modestly Overvalued.
Key valuation signals for BKK:SANKO:
Piotroski F-Score: 7 (near median its 10-year median of 7.00)
GF Value™: ฿1.08 vs. price of ฿1.33 (23.1% above fair value)
Industry Position: 40% above the Vehicles & Parts median (#138 of 1278)
No single metric tells the full story. See the BKK:SANKO stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Sanko Diecasting (Thailand) PCL is involve manufacturing and distribution of aluminum parts products and mold. Its only operating segment being manufacturing and distribution of mold and aluminium parts. The company's product categories include automotive; motorcycles; electric; agricultural machinery and home decoration. Geographically, it operates only in Thailand. It derives a majority of revenue from sales of aluminum parts.
76GF 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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