SPXSF (Spirax Group) Effective Interest Rate on Debt %: 4.48% (As of Dec. 2025)


SPXSF Spirax Group PLC SPXSF
88 GF Score
Price $89.08
GF Value $111.94
Valuation Modestly Undervalued
! 4 Warning Signs
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What is Spirax Group Effective Interest Rate on Debt %?

Spirax Group SPXSF 88 Effective Interest Rate on Debt % is 4.48% as of Dec. 2025. GuruFocus rates SPXSF with a GF Score™ of 88/100 and a GF Value™ of $111.94 (Modestly Undervalued). The stock has 4 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. Spirax Group's annualized positive value of Interest Expense for the quarter that ended in Dec. 2025 was $63 Mil. Spirax Group's average total debt for the quarter that ended in Dec. 2025 was $1,398 Mil. Therefore, Spirax Group's annualized Effective Interest Rate on Debt % for the quarter that ended in Dec. 2025 was 4.48%.


Spirax Group  (OTCPK:SPXSF) Effective Interest Rate on Debt % Explanation

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


Spirax Group Effective Interest Rate on Debt % Related Terms


Spirax Group Effective Interest Rate on Debt % Historical Data

* Premium members only.

The historical data trend for Spirax Group'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.

Spirax Group Effective Interest Rate on Debt % Chart

Spirax Group 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 2.00 2.05 4.73 5.27 4.72

Spirax Group Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
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 5.07 5.02 5.20 4.70 4.48

SPXSF vs GEV, ETN, PH: Effective Interest Rate on Debt % Comparison

For the Specialty Industrial Machinery subindustry, Spirax Group'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.


Spirax Group Effective Interest Rate on Debt % vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, Spirax Group's Effective Interest Rate on Debt % distribution charts can be found below:

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


SPXSF
88GF Score
Spirax Group PLC SPXSF
Effective Interest Rate on Debt % is just one metric. See GF Score™, valuation, warning signs, and more.
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Spirax Group Effective Interest Rate on Debt % Calculation

Spirax Group'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  *  -62.918/( (1296.46+1370.682)/ 2 )
=-1  *  -62.918/1333.571
=4.72 %

where

Total Debt  (A: Dec. 2024 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=991.277 + 305.183
=1296.46

Total Debt  (A: Dec. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=1031.191 + 339.491
=1370.682

Spirax Group's annualized Effective Interest Rate on Debt % for the quarter that ended in Dec. 2025 is calculated as

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (Q: Jun. 2025 )+Total Debt  (Q: Dec. 2025 ))/ count )
=-1  *  -62.65/( (1426.052+1370.682)/ 2 )
=-1  *  -62.65/1398.367
=4.48 %

where

Total Debt  (Q: Jun. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=1056.174 + 369.878
=1426.052

Total Debt  (Q: Dec. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=1031.191 + 339.491
=1370.682

* 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 two times the semi-annual (Dec. 2025) 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 4.48% mean?
Spirax Group (SPXSF) has a Effective Interest Rate on Debt % of 4.48% as of Dec. 2025. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on Spirax Group and its competitors.
Is Spirax Group's Effective Interest Rate on Debt % too high?
Spirax Group's current Effective Interest Rate on Debt % is 4.48%. Overall, Spirax Group has a GF Score™ of 88/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Spirax Group's Effective Interest Rate on Debt % compare to GEV and ETN?
Spirax Group's Effective Interest Rate on Debt % of 4.48% can be compared against companies in the Industrial Products 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 an Industrial Products company?
A good Effective Interest Rate on Debt % depends on the Industrial Products 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 Spirax Group and its competitors. Spirax Group's current Effective Interest Rate on Debt % is 4.48%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Spirax Group stock overvalued right now?
Based on GuruFocus' analysis, Spirax Group (SPXSF) is currently considered Modestly Undervalued. The stock's GF Value™ is $111.94, compared to a current price of $89.08 — trading 20.4% below its estimated fair value. The current Effective Interest Rate on Debt % is 4.48%. Spirax Group's overall GF Score™ is 88/100 with 4 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 Spirax Group (SPXSF), the current Effective Interest Rate on Debt % is 4.48% as of Dec. 2025. 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 Spirax Group (SPXSF) Overvalued in 2026?

Based on GuruFocus' analysis, Spirax Group stock appears to be undervalued. The current stock price of $89.08 is trading 20.4% below its estimated GF Value™ of $111.94. GuruFocus considers Spirax Group to be Modestly Undervalued.

Key valuation signals for SPXSF:

  • Effective Interest Rate on Debt %: 4.48%
  • GF Value™: $111.94 vs. price of $89.08 (20.4% below fair value)
  • GF Score™: 88/100 with 4 warning signs

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


Spirax Group Business Description

Address Cirencester Road, Charlton House, Charlton Kings, Cheltenham, Gloucestershire, GBR, GL53 8ER
Spirax is a global manufacturer of a wide range of applications for industrial and commercial steam systems, electric thermal solutions, and peristaltic pumps used across multiple industries. The group operates across three segments and has over 110,000 direct customers across 130 countries. Approximately 85% of group sales are generated from recurring maintenance and small improvements to existing customer systems. Spirax has 1,700 product lines and 2,100 sales and service engineers, who account for 25% of employees.
88GF Score

Get the complete analysis for SPXSF

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

$89.08
Price
$111.94
GF Value