ADNH (Advent Technologies Holdings) Effective Interest Rate on Debt %: 150.34% (As of Sep. 2025)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

What is Advent Technologies Holdings Effective Interest Rate on Debt %?

Advent Technologies Holdings ADNH Effective Interest Rate on Debt % is 150.34% as of Sep. 2025. The stock has 6 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. Advent Technologies Holdings's annualized positive value of Interest Expense for the quarter that ended in Sep. 2025 was $2.74 Mil. Advent Technologies Holdings's average total debt for the quarter that ended in Sep. 2025 was $1.82 Mil. Therefore, Advent Technologies Holdings's annualized Effective Interest Rate on Debt % for the quarter that ended in Sep. 2025 was 150.34%.

Advent Technologies Holdings  (OTCPK:ADNH) Effective Interest Rate on Debt % Explanation

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

Advent Technologies Holdings Effective Interest Rate on Debt % Related Terms

Advent Technologies Holdings Effective Interest Rate on Debt % Historical Data

* Premium members only.

The historical data trend for Advent Technologies Holdings'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.

Advent Technologies Holdings Effective Interest Rate on Debt % Chart

Advent Technologies Holdings Annual Data
Trend Dec19 Dec20 Dec21 Dec22 Dec23 Dec24
Effective Interest Rate on Debt %
Get a 7-Day Free Trial 13.95 118.60 0.00 0.00 9.56

Advent Technologies Holdings Quarterly Data
Dec20 Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25
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 9.83 170.60 137.46 115.30 150.34

ADNH vs LNKS, OZSC, KRFG: Effective Interest Rate on Debt % Comparison

For the Electrical Equipment & Parts subindustry, Advent Technologies Holdings'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.

Advent Technologies Holdings Effective Interest Rate on Debt % vs Industrial Products Industry

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

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


Advent Technologies Holdings Effective Interest Rate on Debt % Calculation

Advent Technologies Holdings's annualized Effective Interest Rate on Debt % for the fiscal year that ended in Dec. 2024 is calculated as

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (A: Dec. 2023 )+Total Debt  (A: Dec. 2024 ))/ count )
=-1  *  -0.535/( (10.356+0.832)/ 2 )
=-1  *  -0.535/5.594
=9.56 %

where

Total Debt  (A: Dec. 2023 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=8.218 + 2.138
=10.356

Total Debt  (A: Dec. 2024 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=0.184 + 0.648
=0.832

Advent Technologies Holdings's annualized Effective Interest Rate on Debt % for the quarter that ended in Sep. 2025 is calculated as

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (Q: Jun. 2025 )+Total Debt  (Q: Sep. 2025 ))/ count )
=-1  *  -2.74/( (1.667+1.978)/ 2 )
=-1  *  -2.74/1.8225
=150.34 %

where

Total Debt  (Q: Jun. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=0.064 + 1.603
=1.667

Total Debt  (Q: Sep. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=0.023 + 1.955
=1.978

* 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 (Sep. 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 150.34% mean?
Advent Technologies Holdings (ADNH) has a Effective Interest Rate on Debt % of 150.34% as of Sep. 2025. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on Advent Technologies Holdings and its competitors.
Is Advent Technologies Holdings' Effective Interest Rate on Debt % too high?
Advent Technologies Holdings' current Effective Interest Rate on Debt % is 150.34%.
How does Advent Technologies Holdings' Effective Interest Rate on Debt % compare to LNKS and OZSC?
Advent Technologies Holdings' Effective Interest Rate on Debt % of 150.34% 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 Advent Technologies Holdings and its competitors. Advent Technologies Holdings's current Effective Interest Rate on Debt % is 150.34%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Advent Technologies Holdings stock overvalued right now?
Based on GuruFocus' analysis, Advent Technologies Holdings (ADNH) is currently considered Possible Value Trap. The stock's GF Value™ is $0.06, compared to a current price of $0.00 — trading 99.5% below its estimated fair value. The current Effective Interest Rate on Debt % is 150.34%. 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 Advent Technologies Holdings (ADNH), the current Effective Interest Rate on Debt % is 150.34% as of Sep. 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.

Advent Technologies Holdings Business Description

Address 5637 La Ribera Street, Suite A, Livermore, CA, USA, 94550
Advent Technologies Holdings Inc is an innovation-driven company in the fuel cell and hydrogen technology space, including liquid hydrogen carriers such as methanol. The company develops, manufactures, and assembles complete fuel cell systems and the critical components that determine the performance of hydrogen fuel cells and other energy systems. It serves automotive; aviation and power generation industries. It generates revenue from the sale of fuel cell systems and the sale of MEAs, membranes, and electrodes for specific applications in the fuel cell and energy storage (flow battery) markets.