Fastenal CoSTU:FAS +1.99%99 Piotroski F-Score is 7 as of Jun. 25, 2026, which is 40% above its 10-year median of 5.00. GuruFocus rates STU:FAS with a GF Score™ of 99/100 and a GF Value™ of €37.31 (Fairly Valued). The stock has 2 warning signs investors should review. Among 150 Industrial Distribution companies, Fastenal Co ranks better than 87.33% 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
Fastenal 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 Fastenal Co's Piotroski F-Score or its related term are showing as below:
STU:FAS'
s Piotroski F-Score Range Over the Past 10 Years
Min: 3 Med: 5 Max: 7
Current: 7
During the past 13 years, the highest Piotroski F-Score of Fastenal Co was 7. The lowest was 3. And the median was 5.
Fastenal Co (STU:FAS) 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.
Fastenal Co Piotroski F-Score Related Terms
Fastenal Co Piotroski F-Score Historical Data
* Premium members only.
The historical data trend for Fastenal 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.
STU:FAS vs FERG, GWW, WCC: Piotroski F-Score Comparison
For the Industrial Distribution subindustry, Fastenal 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.
Fastenal Co Piotroski F-Score vs Industrial Distribution Industry
For the Industrial Distribution industry and Industrials sector, Fastenal Co's Piotroski F-Score distribution charts can be found below:
* The bar in red indicates where Fastenal 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.
Fastenal Co's current Net Income (TTM) was 1,117.
==> 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.
Fastenal Co's return on assets of this year was 0.2479633. Fastenal Co's return on assets of last year was 0.25589628.
==> Last year is higher ==> Score 0.
Question 4. Quality of Earnings (Accrual)
Compare Cash flow return on assets (2) to return on assets (1)
Fastenal Co's gearing of this year was 0.06170897. Fastenal Co's gearing of last year was 0.06804915.
==> 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
Fastenal Co's current ratio of this year was 4.39243118. Fastenal Co's current ratio of last year was 4.27661742.
==> 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.
Fastenal Co's number of shares in issue this year was 1150.9. Fastenal Co's number of shares in issue last year was 1149.5.
==> There is larger number of shares in issue this year. ==> Score 0.
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.
Fastenal Co's gross margin of this year was 0.4489376. Fastenal Co's gross margin of last year was 0.44993504.
==> 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
Fastenal Co's asset turnover of this year was 1.61068248. Fastenal Co's asset turnover of last year was 1.69207215.
==> Last year's asset turnover is higher ==> Score 0.
Evaluation
Piotroski F-Score
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Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
Fastenal Co has an F-score of 5 indicating the company's financial situation is typical for a stable company.
Fastenal Co (STU:FAS) has a Piotroski F-Score of 7 as of Jun. 25, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Fastenal Co and its competitors. This is 40% above median its historical median of 5.00. Over the past decade, Fastenal Co's Piotroski F-Score has ranged from 3.00 to 7.00. According to the industry distribution chart, Fastenal Co ranks #19 out of 150 companies in the Industrial Distribution industry, placing it in the top 12.7%.
Is Fastenal Co's Piotroski F-Score too high?
Fastenal Co's current Piotroski F-Score of 7 is 40% above 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 Distribution industry median Piotroski F-Score is 6.00. Fastenal Co's value of 7 is 16.7% above this industry median. Based on the distribution chart, Fastenal Co ranks #19 out of 150 companies in the Industrial Distribution industry, which is in the top quartile — a strong position relative to peers. Overall, Fastenal Co has a GF Score™ of 99/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Fastenal Co's Piotroski F-Score compare to FERG and GWW?
According to the Industrial Distribution industry distribution chart, Fastenal Co ranks #19 out of 150 companies for Piotroski F-Score. This places Fastenal Co in the top 13% of its industry — outperforming the majority of peers. The industry median Piotroski F-Score is 6.00. Fastenal Co's value of 7 is 16.7% above this benchmark. Historically, Fastenal 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 6.00, Fastenal 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 Industrial Distribution company?
The median Piotroski F-Score among Industrial Distribution companies is 6.00, based on 150 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. Fastenal Co's current Piotroski F-Score of 7 is 16.7% 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 Fastenal Co and its competitors. For the Industrial Distribution industry, the median Piotroski F-Score is 6.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Fastenal Co's current Piotroski F-Score is 7, which is 40% 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 Fastenal Co stock overvalued right now?
Based on GuruFocus' analysis, Fastenal Co (STU:FAS) is currently considered Fairly Valued. The stock's GF Value™ is €37.31, compared to a current price of €40.84 — trading 9.4% above its estimated fair value. The current Piotroski F-Score is 7, which is 40% above median its 10-year median of 5.00 and 16.7% above the Industrial Distribution industry median of 6.00. Fastenal Co's overall GF Score™ is 99/100 with 2 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 Fastenal Co (STU:FAS), the current Piotroski F-Score is 7 as of Jun. 25, 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 Fastenal Co (STU:FAS) Overvalued in 2026?
Based on GuruFocus' analysis, Fastenal Co stock appears to be overvalued.
The current stock price of €40.84 is trading 9.4% above its estimated GF Value™ of €37.31.
GuruFocus considers Fastenal Co to be Fairly Valued.
Key valuation signals for STU:FAS:
Piotroski F-Score: 7 (40% above median its 10-year median of 5.00)
GF Value™: €37.31 vs. price of €40.84 (9.4% above fair value)
Industry Position: 16.7% above the Industrial Distribution median (#19 of 150)
No single metric tells the full story. See the STU:FAS stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Fastenal began as an industrial retailer, expanding its product portfolio from nuts and bolts to cutting tools, safety equipment, and janitorial supplies. It transitioned into a distributor by building out a dense network of branches close to its business customers. Once a customer becomes large enough, Fastenal installs vending machines and its own personnel on-site. Today, these on-site locations exceed Fastenal's branch count and remain the firm's main focus for expansion. Fastenal acts as a one-stop outsourcing partner for its industrial customers, offering value-added services along with a wide breadth of maintenance, repair, and operations supplies.
99GF Score
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