Fonix (FRA:FOS) Effective Interest Rate on Debt %: 10.49% (As of Dec. 2025)


FRA:FOS Fonix PLC FRA:FOS
85 GF Score
Price €1.85
GF Value €2.66
Valuation Significantly Undervalued
! 2 Warning Signs
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What is Fonix Effective Interest Rate on Debt %?

Fonix FRA:FOS -0.54% 85 Effective Interest Rate on Debt % is 10.49% as of Dec. 2025. GuruFocus rates FRA:FOS with a GF Score™ of 85/100 and a GF Value™ of €2.66 (Significantly Undervalued). 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. Fonix's annualized positive value of Interest Expense for the quarter that ended in Dec. 2025 was €0.01 Mil. Fonix's average total debt for the quarter that ended in Dec. 2025 was €0.13 Mil. Therefore, Fonix's annualized Effective Interest Rate on Debt % for the quarter that ended in Dec. 2025 was 10.49%.


Fonix  (FRA:FOS) Effective Interest Rate on Debt % Explanation

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


Fonix Effective Interest Rate on Debt % Related Terms


Fonix Effective Interest Rate on Debt % Historical Data

* Premium members only.

The historical data trend for Fonix'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.

Fonix Effective Interest Rate on Debt % Chart

Fonix Annual Data
Trend Jun18 Jun19 Jun20 Jun21 Jun22 Jun23 Jun24 Jun25
Effective Interest Rate on Debt %
Get a 7-Day Free Trial 6.06 5.47 6.86 13.33 10.40

Fonix Semi-Annual Data
Jun18 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 5.17 10.64 10.02 10.48 10.49

FRA:FOS vs MSFT, ORCL, PLTR: Effective Interest Rate on Debt % Comparison

For the Software - Infrastructure subindustry, Fonix'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.


Fonix Effective Interest Rate on Debt % vs Software Industry

For the Software industry and Technology sector, Fonix's Effective Interest Rate on Debt % distribution charts can be found below:

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


FRA:FOS
85GF Score
Fonix PLC FRA:FOS
Effective Interest Rate on Debt % is just one metric. See GF Score™, valuation, warning signs, and more.
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Fonix Effective Interest Rate on Debt % Calculation

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

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (A: Jun. 2024 )+Total Debt  (A: Jun. 2025 ))/ count )
=-1  *  -0.025/( (0.31+0.171)/ 2 )
=-1  *  -0.025/0.2405
=10.40 %

where

Total Debt  (A: Jun. 2024 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=0.173 + 0.137
=0.31

Total Debt  (A: Jun. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=0.022 + 0.149
=0.171

Fonix'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  *  -0.014/( (0.171+0.096)/ 2 )
=-1  *  -0.014/0.1335
=10.49 %

where

Total Debt  (Q: Jun. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=0.022 + 0.149
=0.171

* 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 10.49% mean?
Fonix (FRA:FOS) has a Effective Interest Rate on Debt % of 10.49% as of Dec. 2025. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on Fonix and its competitors.
Is Fonix's Effective Interest Rate on Debt % too high?
Fonix's current Effective Interest Rate on Debt % is 10.49%. Overall, Fonix has a GF Score™ of 85/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Fonix's Effective Interest Rate on Debt % compare to MSFT and ORCL?
Fonix's Effective Interest Rate on Debt % of 10.49% can be compared against companies in the Software 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 Software company?
A good Effective Interest Rate on Debt % depends on the Software 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 Fonix and its competitors. Fonix's current Effective Interest Rate on Debt % is 10.49%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Fonix stock overvalued right now?
Based on GuruFocus' analysis, Fonix (FRA:FOS) is currently considered Significantly Undervalued. The stock's GF Value™ is €2.66, compared to a current price of €1.85 — trading 30.5% below its estimated fair value. The current Effective Interest Rate on Debt % is 10.49%. Fonix's overall GF Score™ is 85/100 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 Fonix (FRA:FOS), the current Effective Interest Rate on Debt % is 10.49% 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 Fonix (FRA:FOS) Overvalued in 2026?

Based on GuruFocus' analysis, Fonix stock appears to be undervalued. The current stock price of €1.85 is trading 30.5% below its estimated GF Value™ of €2.66. GuruFocus considers Fonix to be Significantly Undervalued.

Key valuation signals for FRA:FOS:

  • Effective Interest Rate on Debt %: 10.49%
  • GF Value™: €2.66 vs. price of €1.85 (30.5% below fair value)
  • GF Score™: 85/100 with 2 warning signs

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


Fonix Business Description

Other Exchanges FNX:UK
Address 23 Heddon Street, London, GBR, W1B 4BQ
Fonix PLC is a provider of mobile payments and customer engagement solutions for businesses across media, charity, gaming, e-mobility, and other digital services. This technology enables consumers to pay and interact directly through their mobile devices using simple, familiar channels. It operates under one operating segment, which is the facilitating of mobile payments and messaging. It derives the majority of its revenue through commission or facilitation fees by providing Mobile Payments services. Geographically, it derives maximum revenue from the United Kingdom and the rest from other parts of Europe.
85GF Score

Get the complete analysis for FRA:FOS

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

€1.85
Price
€2.66
GF Value