CLIR (ClearSign Technologies) Effective Interest Rate on Debt %: 0.00% (As of Mar. 2026)


CLIR ClearSign Technologies Corp CLIR
40 GF Score
Price $3.84
GF Value $14.95
Valuation Possible Value Trap
! 2 Warning Signs
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What is ClearSign Technologies Effective Interest Rate on Debt %?

ClearSign Technologies CLIR -6.34% 40 Effective Interest Rate on Debt % is 0.00% as of Mar. 2026. GuruFocus rates CLIR with a GF Score™ of 40/100 and a GF Value™ of $14.95 (Possible Value Trap). 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. ClearSign Technologies's annualized positive value of Interest Expense for the quarter that ended in Mar. 2026 was $0.00 Mil. ClearSign Technologies's average total debt for the quarter that ended in Mar. 2026 was $0.15 Mil. Therefore, ClearSign Technologies's annualized Effective Interest Rate on Debt % for the quarter that ended in Mar. 2026 was 0.00%.


ClearSign Technologies  (NAS:CLIR) Effective Interest Rate on Debt % Explanation

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


ClearSign Technologies Effective Interest Rate on Debt % Related Terms


ClearSign Technologies Effective Interest Rate on Debt % Historical Data

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The historical data trend for ClearSign Technologies'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.

ClearSign Technologies Effective Interest Rate on Debt % Chart

ClearSign Technologies Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Effective Interest Rate on Debt %
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ClearSign Technologies 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 0.00 0.00 0.00 0.00 0.00

CLIR vs RAIN, TOMZ, LIQT: Effective Interest Rate on Debt % Comparison

For the Pollution & Treatment Controls subindustry, ClearSign Technologies'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.


ClearSign Technologies Effective Interest Rate on Debt % vs Industrial Products Industry

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

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


CLIR
40GF Score
ClearSign Technologies Corp CLIR
Effective Interest Rate on Debt % is just one metric. See GF Score™, valuation, warning signs, and more.
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ClearSign Technologies Effective Interest Rate on Debt % Calculation

ClearSign Technologies'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  *  0/( (0.188+0.163)/ 2 )
=-1  *  0/0.1755
=0.00 %

where

Total Debt  (A: Dec. 2024 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=0.113 + 0.075
=0.188

Total Debt  (A: Dec. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=0.067 + 0.096
=0.163

ClearSign Technologies'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  *  0/( (0.163+0.14)/ 2 )
=-1  *  0/0.1515
=0.00 %

where

Total Debt  (Q: Dec. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=0.067 + 0.096
=0.163

Total Debt  (Q: Mar. 2026 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=0.042 + 0.098
=0.14

* 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 0.00% mean?
ClearSign Technologies (CLIR) has a Effective Interest Rate on Debt % of 0.00% as of Mar. 2026. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on ClearSign Technologies and its competitors.
Is ClearSign Technologies' Effective Interest Rate on Debt % too high?
ClearSign Technologies' current Effective Interest Rate on Debt % is 0.00%. Overall, ClearSign Technologies has a GF Score™ of 40/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does ClearSign Technologies' Effective Interest Rate on Debt % compare to RAIN and TOMZ?
ClearSign Technologies' Effective Interest Rate on Debt % of 0.00% 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 ClearSign Technologies and its competitors. ClearSign Technologies's current Effective Interest Rate on Debt % is 0.00%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is ClearSign Technologies stock overvalued right now?
Based on GuruFocus' analysis, ClearSign Technologies (CLIR) is currently considered Possible Value Trap. The stock's GF Value™ is $14.95, compared to a current price of $3.84 — trading 74.3% below its estimated fair value. The current Effective Interest Rate on Debt % is 0.00%. ClearSign Technologies' overall GF Score™ is 40/100 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 ClearSign Technologies (CLIR), the current Effective Interest Rate on Debt % is 0.00% 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 ClearSign Technologies (CLIR) Overvalued in 2026?

Based on GuruFocus' analysis, ClearSign Technologies stock appears to be undervalued. The current stock price of $3.84 is trading 74.3% below its estimated GF Value™ of $14.95. GuruFocus considers ClearSign Technologies to be Possible Value Trap.

Key valuation signals for CLIR:

  • Effective Interest Rate on Debt %: 0.00%
  • GF Value™: $14.95 vs. price of $3.84 (74.3% below fair value)
  • GF Score™: 40/100 with 2 warning signs

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


ClearSign Technologies Business Description

Other Exchanges 0I0B:UK
Address 8023 East 63rd Place, Suite 101, Tulsa, OK, USA, 74133
ClearSign Technologies Corp is engaged in designing and develop technologies for the purpose of decarbonization and improving key performance characteristics of industrial and commercial combustion systems, including emission and operational performance, energy efficiency and overall cost-effectiveness. Its ClearSign Core technology has been proved to be in full scale industrial test furnaces and boilers and first customer installations are currently operating in normal commercial applications The company offers products that include process burners, boiler burners, flares, and ClearSign Eye. The company operates in one segment: Combustion segment. The products of the company include: Process Burners, Midstream and Power, Flares, Boiler Burners, and Sensing Technology.
40GF 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.

$3.84
Price
$14.95
GF Value