Kirby (KEX) Operating Income: $492 Mil (TTM As of Mar. 2026)


KEX Kirby Corp KEX
84 GF Score
Price $133.91
GF Value $119.38
Valuation Modestly Overvalued
! 2 Warning Signs
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What is Kirby Operating Income?

Kirby KEX +0.71% 84 Operating Income is $492 Mil as of Mar. 2026. GuruFocus rates KEX with a GF Score™ of 84/100 and a GF Value™ of $119.38 (Modestly Overvalued). The stock has 2 warning signs investors should review.

Kirby's Operating Income for the three months ended in Mar. 2026 was $106 Mil. Its Operating Income for the trailing twelve months (TTM) ended in Mar. 2026 was $492 Mil.

Operating Margin % is calculated as Operating Income divided by its Revenue. Kirby's Operating Income for the three months ended in Mar. 2026 was $106 Mil. Kirby's Revenue for the three months ended in Mar. 2026 was $844 Mil. Therefore, Kirby's Operating Margin % for the quarter that ended in Mar. 2026 was 12.58%.

Good Sign:

Kirby Corp operating margin is expanding. Margin expansion is usually a good sign.

Kirby's 5-Year average Growth Rate for Operating Margin % was 28.40% per year.

Operating Income or EBIT is linked to Return on Capital for both regular definition and Joel Greenblatt's definition. Kirby's annualized ROC % for the quarter that ended in Mar. 2026 was 5.92%. Kirby's annualized ROC (Joel Greenblatt) % for the quarter that ended in Mar. 2026 was 9.93%.


Kirby  (NYSE:KEX) Operating Income Explanation

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

Kirby'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 )
=424.88 * ( 1 - 22.33% )/( (5543.752 + 5597.225)/ 2 )
=330.004296/5570.4885
=5.92 %

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))
=6008.045 - 385.518 - ( 78.775 - max(0, 706.524 - 1077.855+78.775))
=5543.752

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))
=6119.203 - 463.964 - ( 58.014 - max(0, 717.464 - 1142.135+58.014))
=5597.225

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

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

Kirby'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 )
=459.816/( ( (4291.334 + max(276.057, 0)) + (4342.581 + max(348.007, 0)) )/ 2 )
=459.816/( ( 4567.391 + 4690.588 )/ 2 )
=459.816/4628.9895
=9.93 %

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)
=(473.497 + 398.026 + 57.935) - (385.518 + 202.164 + 65.719)
=276.057

Working Capital(Q: Mar. 2026 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(536.35 + 418.076 + 62.732) - (463.964 + 205.187 + 0)
=348.007

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 %:

Kirby'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 )
=106.22/844.099
=12.58 %

* 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.


Kirby Operating Income Related Terms


Kirby Operating Income Historical Data

* Premium members only.

The historical data trend for Kirby'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.

Kirby Operating Income Chart

Kirby 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 76.82 184.61 330.08 453.19 491.50

Kirby 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 105.48 130.16 126.22 129.64 106.22
KEX
84GF Score
Kirby Corp KEX
Operating Income is just one metric. See GF Score™, valuation, warning signs, and more.
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Kirby 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 $492 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 $492 Mil mean?
Kirby (KEX) has a Operating Income of $492 Mil as of Mar. 2026. Operating Income equals sales less all operating expenses. It is linked to EBIT. View historical data on Kirby and its competitors.
Is Kirby's Operating Income too high?
Kirby's current Operating Income is $492 Mil. Overall, Kirby has a GF Score™ of 84/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Kirby's Operating Income compare to MATX and ZIM?
Kirby's Operating Income of $492 Mil can be compared against companies in the Transportation 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 a Transportation company?
A good Operating Income depends on the Transportation 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 Kirby and its competitors. Kirby's current Operating Income is $492 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Kirby stock overvalued right now?
Based on GuruFocus' analysis, Kirby (KEX) is currently considered Modestly Overvalued. The stock's GF Value™ is $119.38, compared to a current price of $133.91 — trading 12.2% above its estimated fair value. The current Operating Income is $492 Mil. Kirby's overall GF Score™ is 84/100 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 Kirby (KEX), the current Operating Income is $492 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 Kirby (KEX) Overvalued in 2026?

Based on GuruFocus' analysis, Kirby stock appears to be overvalued. The current stock price of $133.91 is trading 12.2% above its estimated GF Value™ of $119.38. GuruFocus considers Kirby to be Modestly Overvalued.

Key valuation signals for KEX:

  • Operating Income: $492 Mil
  • GF Value™: $119.38 vs. price of $133.91 (12.2% above fair value)
  • GF Score™: 84/100 with 2 warning signs

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


Kirby Business Description

Other Exchanges KIY:Germany
Address 55 Waugh Drive, Suite 1000, Houston, TX, USA, 77007
Kirby Corp is a domestic tank barge operator, transporting bulk liquid products throughout three United States coasts. The Company transports petrochemicals, liquid cargoes, inland waterway systems, and dry bulk cargoes. The Company conducts operations in two reportable business segments: The Marine transportation segment which provides marine transportation services, operating tank barges and towing vessels transporting bulk liquid products, and the Distribution and services segment, which provides after-market service, and genuine replacement parts for engines, transmissions, reduction gears, and power generation equipment used in oil and gas and commercial and industrial applications. The company's majority revenue is generated from the Marine Transportation segment.
84GF Score

Get the complete analysis for KEX

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

$133.91
Price
$119.38
GF Value