FAST (Fastenal Co) Operating Income: $1,710 Mil (TTM As of Mar. 2026)


FAST Fastenal Co FAST
99 GF Score
Price $47.45
GF Value $43.22
Valuation Fairly Valued
! 2 Warning Signs
View Full Analysis

What is Fastenal Co Operating Income?

Fastenal Co FAST +0.11% 99 Operating Income is $1,710 Mil as of Mar. 2026. GuruFocus rates FAST with a GF Score™ of 99/100 and a GF Value™ of $43.22 (Fairly Valued). The stock has 2 warning signs investors should review.

Fastenal Co's Operating Income for the three months ended in Mar. 2026 was $448 Mil. Its Operating Income for the trailing twelve months (TTM) ended in Mar. 2026 was $1,710 Mil.

Operating Margin % is calculated as Operating Income divided by its Revenue. Fastenal Co's Operating Income for the three months ended in Mar. 2026 was $448 Mil. Fastenal Co's Revenue for the three months ended in Mar. 2026 was $2,202 Mil. Therefore, Fastenal Co's Operating Margin % for the quarter that ended in Mar. 2026 was 20.33%.

Fastenal Co's 5-Year average Growth Rate for Operating Margin % was -0.10% per year.

Operating Income or EBIT is linked to Return on Capital for both regular definition and Joel Greenblatt's definition. Fastenal Co's annualized ROC % for the quarter that ended in Mar. 2026 was 31.97%. Fastenal Co's annualized ROC (Joel Greenblatt) % for the quarter that ended in Mar. 2026 was 44.23%.

Fastenal Co  (NAS:FAST) Operating Income Explanation

1. Operating Income or EBIT is linked to Return on Capital for both regular definition and Joel Greenblatt's definition.

Fastenal Co's annualized ROC % for the quarter that ended in Mar. 2026 is calculated as:

ROC % (Q: Mar. 2026 )
=NOPAT/Average Invested Capital
=Operating Income * ( 1 - Tax Rate % )/( (Invested Capital (Q: Dec. 2025 ) + Invested Capital (Q: Mar. 2026 ))/ count )
=1790.4 * ( 1 - 24.22% )/( (4279.9 + 4208.2)/ 2 )
=1356.76512/4244.05
=31.97 %

where

Invested Capital(Q: Dec. 2025 )
=Total Assets - Accounts Payable & Accrued Expense - Excess Cash
=Total Assets - Accounts Payable & Accrued Expense - ( Cash, Cash Equivalents, Marketable Securities - max(0, Total Current Liabilities - Total Current Assets+Cash, Cash Equivalents, Marketable Securities))
=5052.9 - 496.2 - ( 276.8 - max(0, 715.6 - 3472.1+276.8))
=4279.9

Invested Capital(Q: Mar. 2026 )
=Total Assets - Accounts Payable & Accrued Expense - Excess Cash
=Total Assets - Accounts Payable & Accrued Expense - ( Cash, Cash Equivalents, Marketable Securities - max(0, Total Current Liabilities - Total Current Assets+Cash, Cash Equivalents, Marketable Securities))
=5209.8 - 693 - ( 308.6 - max(0, 824.1 - 3619.8+308.6))
=4208.2

Note: The Operating Income data used here is four times the quarterly (Mar. 2026) data.

2. Joel Greenblatt's definition of Return on Capital:

Fastenal Co's annualized ROC (Joel Greenblatt) % for the quarter that ended in Mar. 2026 is calculated as:

ROC (Joel Greenblatt) %(Q: Mar. 2026 )
=EBIT/Average of (Net fixed Assets + Net Working Capital)
=EBIT/Average of (Property, Plant and Equipment+Net Working Capital)
     Q: Dec. 2025  Q: Mar. 2026
=EBIT/( ( (Property, Plant and Equipment + Net Working Capital) + (Property, Plant and Equipment + Net Working Capital) )/ count )
=1796.4/( ( (1440.6 + max(2610.8, 0)) + (1452.6 + max(2618.2, 0)) )/ 2 )
=1796.4/( ( 4051.4 + 4070.8 )/ 2 )
=1796.4/4061.1
=44.23 %

where Working Capital is:

Working Capital(Q: Dec. 2025 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(1245.3 + 1748 + 202) - (496.2 + 0 + 88.3)
=2610.8

Working Capital(Q: Mar. 2026 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(1445.2 + 1692.5 + 173.5) - (693 + 0 + 0)
=2618.2

When net working capital is negative, 0 is used.

Note: The EBIT data used here is four times the quarterly (Mar. 2026) EBIT data.

3. Operating Income is also linked to Operating Margin %:

Fastenal Co's Operating Margin % for the quarter that ended in Mar. 2026 is calculated as:

Operating Margin %=Operating Income (Q: Mar. 2026 )/Revenue (Q: Mar. 2026 )
=447.6/2201.7
=20.33 %

* 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.

4. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the Operating Income growth rate using Operating Income per share data.

Be Aware

Compared with a company's EBITDA margin, Operating Margin can be manipulated by adjusting the rate of depreciation, depletion and amortization (DDA).

If a company is facing competition, its Operating Margin may decline. Often the Operating Margin declines well before the company's revenue or even profit decline. Therefore, Operating Margin is a very important indicator of whether the company is facing problems.

For instance, by 2012, Nokia (NOK)'s problems were well known and its stock had lost more than 90% of its market value since 2007. But Nokia's Operating Margin had already been in decline since 2002, although its earnings per share were still rising. Investors who paid attention to Operating Margin would have avoided this huge loss. The same can be said for Research-in-Motion (RIMM).

Therefore, Operating Margin is a very important screening filter for GuruFocus. GuruFocus's Buffett-Munger screener requires that the profit margin is either consistent or expanding. The Model Portfolio of the Buffett-Munger screener has outperformed the market every year since inception in 2009.

Fastenal Co Operating Income Related Terms

Fastenal Co Operating Income Historical Data

* Premium members only.

The historical data trend for Fastenal Co's Operating Income 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.

Fastenal Co Operating Income Chart

Fastenal Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Operating Income
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1,217.40 1,453.60 1,528.70 1,510.00 1,655.70

Fastenal Co Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Operating Income Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 393.90 436.10 441.50 384.30 447.60
FAST
99GF Score
Fastenal Co FAST
Operating Income is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Fastenal Co Operating Income Calculation

Operating Income, is the profit a company earned through operations. All expenses, including cash expenses such as cost of goods sold (COGS), research & development, wages, and non-cash expenses, such as depreciation, depletion and amortization, have been deducted from the sales.

Operating Income for the trailing twelve months (TTM) ended in Mar. 2026 adds up the quarterly data reported by the company within the most recent 12 months, which was $1,710 Mil.

* 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.

Frequently Asked Questions Learn more about Operating Income →
What does a Operating Income of $1,710 Mil mean?
Fastenal Co (FAST) has a Operating Income of $1,710 Mil as of Mar. 2026. Operating Income equals sales less all operating expenses. It is linked to EBIT. View historical data on Fastenal Co and its competitors.
Is Fastenal Co's Operating Income too high?
Fastenal Co's current Operating Income is $1,710 Mil. 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 Operating Income compare to FERG and GWW?
Fastenal Co's Operating Income of $1,710 Mil can be compared against companies in the Industrial Distribution industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Operating Income for an Industrial Distribution company?
A good Operating Income depends on the Industrial Distribution industry context. However, Operating Income should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Operating Income mean?
A high Operating Income can signal that a stock is expensive relative to its fundamentals. Operating Income equals sales less all operating expenses. It is linked to EBIT. View historical data on Fastenal Co and its competitors. Fastenal Co's current Operating Income is $1,710 Mil. 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 (FAST) is currently considered Fairly Valued. The stock's GF Value™ is $43.22, compared to a current price of $47.45 — trading 9.8% above its estimated fair value. The current Operating Income is $1,710 Mil. 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 Operating Income calculated?
Operating Income is calculated from a company's financial statements. For Fastenal Co (FAST), the current Operating Income is $1,710 Mil 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 (FAST) Overvalued in 2026?

Based on GuruFocus' analysis, Fastenal Co stock appears to be overvalued. The current stock price of $47.45 is trading 9.8% above its estimated GF Value™ of $43.22. GuruFocus considers Fastenal Co to be Fairly Valued.

Key valuation signals for FAST:

  • Operating Income: $1,710 Mil
  • GF Value™: $43.22 vs. price of $47.45 (9.8% above fair value)
  • GF Score™: 99/100 with 2 warning signs

No single metric tells the full story. See the FAST stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

Fastenal Co Business Description

Address 2001 Theurer Boulevard, Winona, MN, USA, 55987-1500
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

Get the complete analysis for FAST

Operating Income is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$47.45
Price
$43.22
GF Value