Kirby (KEX) Days Inventory: 59.41 (As of Mar. 2026) — Near Median


KEX Kirby Corp KEX
83 GF Score
Price $136.78
GF Value $119.17
Valuation Modestly Overvalued
! 6 Warning Signs
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What is Kirby Days Inventory?

Kirby KEX -1.28% 83 Days Inventory is 59.41 as of Mar. 2026, which is 6% below its 10-year median of 63.20. GuruFocus rates KEX with a GF Score™ of 83/100 and a GF Value™ of $119.17 (Modestly Overvalued). The stock has 6 warning signs investors should review. Among 798 Transportation companies, Kirby ranks worse than 85.21% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). Kirby's Average Total Inventories for the three months ended in Mar. 2026 was $408 Mil. Kirby's Cost of Goods Sold for the three months ended in Mar. 2026 was $627 Mil. Hence, Kirby's Days Inventory for the three months ended in Mar. 2026 was 59.41.

The historical rank and industry rank for Kirby's Days Inventory or its related term are showing as below:

KEX' s Days Inventory Range Over the Past 10 Years
Min: 50.93   Med: 63.2   Max: 69.92
Current: 60.59

During the past 13 years, Kirby's highest Days Inventory was 69.92. The lowest was 50.93. And the median was 63.20.

KEX's Days Inventory is ranked worse than
85.21% of 798 companies
in the Transportation industry
Industry Median: 12.35 vs KEX: 60.59

Kirby's Days Inventory declined from Mar. 2025 (65.63) to Mar. 2026 (59.41).

Inventory Turnover measures how fast the company turns over its inventory within a year. Kirby's Inventory Turnover for the three months ended in Mar. 2026 was 1.54.

Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue. Kirby's Inventory-to-Revenue for the three months ended in Mar. 2026 was 0.48.


Kirby  (NYSE:KEX) Days Inventory Explanation

Days Inventory indicates the liquidity of the inventory. Generally, a lower Days Inventory is preferred as it indicates a shorter duration to clear off the inventory. An increase of the ratio may indicate the company's sales slowed. Similar ratios related to Days Inventory are:

1. Inventory Turnover measures how fast the company turns over its inventory within a year.

Kirby's Inventory Turnover for the three months ended in Mar. 2026 is calculated as

2. Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue.

Kirby's Inventory to Revenue for the three months ended in Mar. 2026 is calculated as

* 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.


Be Aware

A lot of business are seasonable. It makes more sense to compare Days Inventory from the same period in the previous year instead of from the previous quarter.


Kirby Days Inventory Related Terms


Kirby Days Inventory Historical Data

* Premium members only.

The historical data trend for Kirby's Days Inventory 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 Days Inventory Chart

Kirby Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Days Inventory
Get a 7-Day Free Trial Premium Member Only Premium Member Only 62.67 63.98 69.92 63.43 58.26

Kirby Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Days Inventory 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 65.63 62.46 59.92 59.69 59.41

KEX vs MATX, SBLK, ZIM: Days Inventory Comparison

For the Marine Shipping subindustry, Kirby's Days Inventory, along with its competitors' market caps and Days Inventory 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.


Kirby Days Inventory vs Transportation Industry

For the Transportation industry and Industrials sector, Kirby's Days Inventory distribution charts can be found below:

* The bar in red indicates where Kirby's Days Inventory falls into.


KEX
83GF Score
Kirby Corp KEX
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
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Kirby Days Inventory Calculation

Days Inventory indicates the number of days of goods in sales that a company has in the inventory.

Kirby's Days Inventory for the fiscal year that ended in Dec. 2025 is calculated as

Days Inventory (A: Dec. 2025 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (A: Dec. 2024 ) + Total Inventories (A: Dec. 2025 )) / count ) / Cost of Goods Sold (A: Dec. 2025 )*Days in Period
=( (393.898 + 398.026) / 2 ) / 2480.627*365
=395.962 / 2480.627*365
=58.26

Kirby's Days Inventory for the quarter that ended in Mar. 2026 is calculated as:

Days Inventory (Q: Mar. 2026 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (Q: Dec. 2025 ) + Total Inventories (Q: Mar. 2026 )) / count ) / Cost of Goods Sold (Q: Mar. 2026 )*Days in Period
=( (398.026 + 418.076) / 2 ) / 626.767*365 / 4
=408.051 / 626.767*365 / 4
=59.41

* 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 Days Inventory →
What does a Days Inventory of 59.41 mean?
Kirby (KEX) has a Days Inventory of 59.41 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Kirby and its competitors. This is near median its historical median of 63.20. Over the past decade, Kirby's Days Inventory has ranged from 50.93 to 69.92. According to the industry distribution chart, Kirby ranks #680 out of 798 companies in the Transportation industry, placing it in the top 85.2%.
Is Kirby's Days Inventory too high?
Kirby's current Days Inventory of 59.41 is near median its 10-year median of 63.20. Over the past 10 years, this metric has ranged from a low of 50.93 to a high of 69.92. The Transportation industry median Days Inventory is 12.35. Kirby's value of 59.41 is 381.1% above this industry median. Based on the distribution chart, Kirby ranks #680 out of 798 companies in the Transportation industry, which is in the bottom quartile relative to peers. Overall, Kirby has a GF Score™ of 83/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Kirby's Days Inventory compare to MATX and SBLK?
According to the Transportation industry distribution chart, Kirby ranks #680 out of 798 companies for Days Inventory. This places Kirby in the lower half of its industry. The industry median Days Inventory is 12.35. Kirby's value of 59.41 is 381.1% above this benchmark. Historically, Kirby's own Days Inventory has ranged from 50.93 to 69.92 over the past decade. While the company's 10-year median is 63.20 vs. the industry median of 12.35, Kirby 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 Days Inventory for a Transportation company?
The median Days Inventory among Transportation companies is 12.35, based on 798 companies in the industry. Companies in the top quartile (top 25%) have a Days Inventory significantly above this median, while those in the bottom quartile fall well below. However, Days Inventory should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Kirby's current Days Inventory of 59.41 is 381.1% 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 Days Inventory mean?
A high Days Inventory can signal that a stock is expensive relative to its fundamentals. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Kirby and its competitors. For the Transportation industry, the median Days Inventory is 12.35 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Kirby's current Days Inventory is 59.41, which is near median its own 10-year median of 63.20. 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 $119.17, compared to a current price of $136.78 — trading 14.8% above its estimated fair value. The current Days Inventory is 59.41, which is near median its 10-year median of 63.20 and 381.1% above the Transportation industry median of 12.35. Kirby's overall GF Score™ is 83/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Days Inventory calculated?
Days Inventory is calculated from a company's financial statements. For Kirby (KEX), the current Days Inventory is 59.41 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 $136.78 is trading 14.8% above its estimated GF Value™ of $119.17. GuruFocus considers Kirby to be Modestly Overvalued.

Key valuation signals for KEX:

  • Days Inventory: 59.41 (near median its 10-year median of 63.20)
  • GF Value™: $119.17 vs. price of $136.78 (14.8% above fair value)
  • GF Score™: 83/100 with 6 warning signs
  • Industry Position: 381.1% above the Transportation median (#680 of 798)

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.
83GF Score

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

$136.78
Price
$119.17
GF Value