Kirby (KEX) Effective Interest Rate on Debt %: 3.53% (As of Mar. 2026)


KEX Kirby Corp KEX
84 GF Score
Price $132.97
GF Value $119.36
Valuation Modestly Overvalued
! 2 Warning Signs
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What is Kirby Effective Interest Rate on Debt %?

Kirby KEX +2.41% 84 Effective Interest Rate on Debt % is 3.53% as of Mar. 2026. GuruFocus rates KEX with a GF Score™ of 84/100 and a GF Value™ of $119.36 (Modestly Overvalued). The stock has 2 warning signs investors should review.

Effective Interest Rate on Debt % is the usage rate that a borrower actually pays on a debt. It is calculated as the positive value of Interest Expense divided by its average total debt. Total debt equals to Long-Term Debt & Capital Lease Obligation plus Short-Term Debt & Capital Lease Obligation. Kirby's annualized positive value of Interest Expense for the quarter that ended in Mar. 2026 was $41 Mil. Kirby's average total debt for the quarter that ended in Mar. 2026 was $1,160 Mil. Therefore, Kirby's annualized Effective Interest Rate on Debt % for the quarter that ended in Mar. 2026 was 3.53%.


Kirby  (NYSE:KEX) Effective Interest Rate on Debt % Explanation

Effective Interest Rate on Debt % measures the usage rate that a borrower actually pays on a debt.


Kirby Effective Interest Rate on Debt % Related Terms


Kirby Effective Interest Rate on Debt % Historical Data

* Premium members only.

The historical data trend for Kirby's Effective Interest Rate on Debt % 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 Effective Interest Rate on Debt % Chart

Kirby Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Effective Interest Rate on Debt %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 2.81 3.41 4.25 4.37 4.22

Kirby Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Effective Interest Rate on Debt % 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 3.60 3.95 3.71 3.76 3.53

KEX vs MATX, ZIM, SBLK: Effective Interest Rate on Debt % Comparison

For the Marine Shipping subindustry, Kirby's Effective Interest Rate on Debt %, along with its competitors' market caps and Effective Interest Rate on Debt % 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 Effective Interest Rate on Debt % vs Transportation Industry

For the Transportation industry and Industrials sector, Kirby's Effective Interest Rate on Debt % distribution charts can be found below:

* The bar in red indicates where Kirby's Effective Interest Rate on Debt % falls into.


KEX
84GF Score
Kirby Corp KEX
Effective Interest Rate on Debt % is just one metric. See GF Score™, valuation, warning signs, and more.
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Kirby Effective Interest Rate on Debt % Calculation

Kirby's annualized Effective Interest Rate on Debt % for the fiscal year that ended in Dec. 2025 is calculated as

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (A: Dec. 2024 )+Total Debt  (A: Dec. 2025 ))/ count )
=-1  *  -46.327/( (1058.845+1134.901)/ 2 )
=-1  *  -46.327/1096.873
=4.22 %

where

Total Debt  (A: Dec. 2024 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=1014.892 + 43.953
=1058.845

Total Debt  (A: Dec. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=1081.778 + 53.123
=1134.901

Kirby's annualized Effective Interest Rate on Debt % for the quarter that ended in Mar. 2026 is calculated as

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (Q: Dec. 2025 )+Total Debt  (Q: Mar. 2026 ))/ count )
=-1  *  -41/( (1134.901+1185.027)/ 2 )
=-1  *  -41/1159.964
=3.53 %

where

Total Debt  (Q: Dec. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=1081.778 + 53.123
=1134.901

Total Debt  (Q: Mar. 2026 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=1136.714 + 48.313
=1185.027

* 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.

In the calculation of annual Effective Interest Rate on Debt %, the Interest Expense of the last fiscal year and the average total debt over the fiscal year are used. In calculating the quarterly data, the Interest Expense data used here is four times the quarterly (Mar. 2026) interest expense data. Effective Interest Rate on Debt % is displayed in the 30-year financial page.

What does a Effective Interest Rate on Debt % of 3.53% mean?
Kirby (KEX) has a Effective Interest Rate on Debt % of 3.53% as of Mar. 2026. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on Kirby and its competitors.
Is Kirby's Effective Interest Rate on Debt % too high?
Kirby's current Effective Interest Rate on Debt % is 3.53%. 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 Effective Interest Rate on Debt % compare to MATX and ZIM?
Kirby's Effective Interest Rate on Debt % of 3.53% 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 Effective Interest Rate on Debt % for a Transportation company?
A good Effective Interest Rate on Debt % depends on the Transportation industry context. However, Effective Interest Rate on Debt % 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 Effective Interest Rate on Debt % mean?
A high Effective Interest Rate on Debt % can signal that a stock is expensive relative to its fundamentals. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on Kirby and its competitors. Kirby's current Effective Interest Rate on Debt % is 3.53%. 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 $119.36, compared to a current price of $132.97 — trading 11.4% above its estimated fair value. The current Effective Interest Rate on Debt % is 3.53%. 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 Effective Interest Rate on Debt % calculated?
Effective Interest Rate on Debt % is calculated from a company's financial statements. For Kirby (KEX), the current Effective Interest Rate on Debt % is 3.53% 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 $132.97 is trading 11.4% above its estimated GF Value™ of $119.36. GuruFocus considers Kirby to be Modestly Overvalued.

Key valuation signals for KEX:

  • Effective Interest Rate on Debt %: 3.53%
  • GF Value™: $119.36 vs. price of $132.97 (11.4% 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

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Effective Interest Rate on Debt % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$132.97
Price
$119.36
GF Value