Fastenal CoSTU:FAS +1.99%99 FCF Margin % is 14.51% as of Mar. 2026, which is 31% above its 10-year median of 11.09. 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 156 Industrial Distribution companies, Fastenal Co ranks better than 92.95% on this metric.
FCF Margin % is calculated as Free Cash Flow divided by its Revenue. Fastenal Co's Free Cash Flow for the
three
months ended in Mar. 2026 was €276 Mil. Fastenal Co's Revenue for the
three
months ended in Mar. 2026 was €1,904 Mil. Therefore, Fastenal Co's FCF Margin % for the quarter that ended in Mar. 2026 was 14.51%.
The historical rank and industry rank for Fastenal Co's FCF Margin % or its related term are showing as below:
STU:FAS'
s FCF Margin % Range Over the Past 10 Years
Min: 8.34 Med: 11.09 Max: 17.15
Current: 13.77
During the past 13 years, the highest FCF Margin % of Fastenal Co was 17.15%. The lowest was 8.34%. And the median was 11.09%.
STU:FAS's FCF Margin % is ranked better than 92.95% of 156
companies
in the Industrial Distribution industry
Industry Median: 4.17
vs STU:FAS: 13.77
Fastenal Co FCF Margin % Related Terms
Fastenal Co FCF Margin % Historical Data
* Premium members only.
The historical data trend for Fastenal Co's FCF Margin % 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: FCF Margin % Comparison
For the Industrial Distribution subindustry, Fastenal Co's FCF Margin %, along with its competitors' market caps and FCF Margin % 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 FCF Margin % vs Industrial Distribution Industry
For the Industrial Distribution industry and Industrials sector, Fastenal Co's FCF Margin % distribution charts can be found below:
* The bar in red indicates where Fastenal Co's FCF Margin % 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.
Fastenal Co (STU:FAS) has a FCF Margin % of 14.51% as of Mar. 2026. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on Fastenal Co and its competitors. This is 31% above median its historical median of 11.09. Over the past decade, Fastenal Co's FCF Margin % has ranged from 8.34 to 17.15. According to the industry distribution chart, Fastenal Co ranks #11 out of 156 companies in the Industrial Distribution industry, placing it in the top 7.1%.
Is Fastenal Co's FCF Margin % too high?
Fastenal Co's current FCF Margin % of 14.51% is 31% above median its 10-year median of 11.09. Over the past 10 years, this metric has ranged from a low of 8.34 to a high of 17.15. The Industrial Distribution industry median FCF Margin % is 4.17. Fastenal Co's value of 14.51% is 248% above this industry median. Based on the distribution chart, Fastenal Co ranks #11 out of 156 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 FCF Margin % compare to FERG and GWW?
According to the Industrial Distribution industry distribution chart, Fastenal Co ranks #11 out of 156 companies for FCF Margin %. This places Fastenal Co in the top 7% of its industry — outperforming the majority of peers. The industry median FCF Margin % is 4.17. Fastenal Co's value of 14.51% is 248% above this benchmark. Historically, Fastenal Co's own FCF Margin % has ranged from 8.34 to 17.15 over the past decade. While the company's 10-year median is 11.09 vs. the industry median of 4.17, 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 FCF Margin % for an Industrial Distribution company?
The median FCF Margin % among Industrial Distribution companies is 4.17, based on 156 companies in the industry. Companies in the top quartile (top 25%) have a FCF Margin % significantly above this median, while those in the bottom quartile fall well below. However, FCF Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Fastenal Co's current FCF Margin % of 14.51% is 248% 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 FCF Margin % mean?
A high FCF Margin % can signal that a stock is expensive relative to its fundamentals. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on Fastenal Co and its competitors. For the Industrial Distribution industry, the median FCF Margin % is 4.17 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Fastenal Co's current FCF Margin % is 14.51%, which is 31% above median its own 10-year median of 11.09. 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 FCF Margin % is 14.51%, which is 31% above median its 10-year median of 11.09 and 248% above the Industrial Distribution industry median of 4.17. 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 FCF Margin % calculated?
FCF Margin % is calculated from a company's financial statements. For Fastenal Co (STU:FAS), the current FCF Margin % is 14.51% as of Mar. 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:
FCF Margin %: 14.51% (31% above median its 10-year median of 11.09)
GF Value™: €37.31 vs. price of €40.84 (9.4% above fair value)
Industry Position: 248% above the Industrial Distribution median (#11 of 156)
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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