ClearSign Technologies (STU:4CC0) ROE % Adjusted to Book Value: -35.58% (As of Mar. 2026)


STU:4CC0 ClearSign Technologies Corp STU:4CC0
40 GF Score
Price €3.52
GF Value €14.85
! 2 Warning Signs
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What is ClearSign Technologies ROE % Adjusted to Book Value?

ClearSign Technologies STU:4CC0 40 ROE % Adjusted to Book Value is -35.58% as of Mar. 2026. GuruFocus rates STU:4CC0 with a GF Score™ of 40/100 and a GF Value™ of €14.85. The stock has 2 warning signs investors should review.

ClearSign Technologies's ROE % for the quarter that ended in Mar. 2026 was -102.84%. ClearSign Technologies's PB Ratio for the quarter that ended in Mar. 2026 was 2.89. ClearSign Technologies's ROE % Adjusted to Book Value for the quarter that ended in Mar. 2026 was -35.58%.


ClearSign Technologies ROE % Adjusted to Book Value Related Terms


ClearSign Technologies ROE % Adjusted to Book Value Historical Data

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The historical data trend for ClearSign Technologies's ROE % Adjusted to Book Value 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 ROE % Adjusted to Book Value Chart

ClearSign Technologies Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
ROE % Adjusted to Book Value
Get a 7-Day Free Trial Premium Member Only Premium Member Only -17.50 -31.67 -8.91 -13.30 -14.46

ClearSign Technologies Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
ROE % Adjusted to Book Value 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 -20.21 -21.89 -13.06 -4.40 -35.58

STU:4CC0 vs TOMZ, RAIN, BNET: ROE % Adjusted to Book Value Comparison

For the Pollution & Treatment Controls subindustry, ClearSign Technologies's ROE % Adjusted to Book Value, along with its competitors' market caps and ROE % Adjusted to Book Value 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 ROE % Adjusted to Book Value vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, ClearSign Technologies's ROE % Adjusted to Book Value distribution charts can be found below:

* The bar in red indicates where ClearSign Technologies's ROE % Adjusted to Book Value falls into.


STU:4CC0
40GF Score
ClearSign Technologies Corp STU:4CC0
ROE % Adjusted to Book Value is just one metric. See GF Score™, valuation, warning signs, and more.
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ClearSign Technologies ROE % Adjusted to Book Value Calculation

ClearSign Technologies's ROE % Adjusted to Book Value for the fiscal year that ended in Dec. 2025 is calculated as

ROE % Adjusted to Book Value=ROE % / PB Ratio
=-44.11% / 3.05
=-14.46%

ClearSign Technologies's ROE % Adjusted to Book Value for the quarter that ended in Mar. 2026 is calculated as

ROE % Adjusted to Book Value=ROE % / PB Ratio
=-102.84% / 2.89
=-35.58%

* 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.

What does a ROE % Adjusted to Book Value of -35.58% mean?
ClearSign Technologies (STU:4CC0) has a ROE % Adjusted to Book Value of -35.58% as of Mar. 2026. Return on equity adjusted to book is the ratio of return on equity to price-book ratio. View historical data on ClearSign Technologies and its competitors.
Is ClearSign Technologies' ROE % Adjusted to Book Value too high?
ClearSign Technologies' current ROE % Adjusted to Book Value is -35.58%. Overall, ClearSign Technologies has a GF Score™ of 40/100, reflecting its overall financial health beyond just this single metric.
How does ClearSign Technologies' ROE % Adjusted to Book Value compare to TOMZ and RAIN?
ClearSign Technologies' ROE % Adjusted to Book Value of -35.58% 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 ROE % Adjusted to Book Value for an Industrial Products company?
A good ROE % Adjusted to Book Value depends on the Industrial Products industry context. However, ROE % Adjusted to Book Value 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 ROE % Adjusted to Book Value mean?
A high ROE % Adjusted to Book Value can signal that a stock is expensive relative to its fundamentals. Return on equity adjusted to book is the ratio of return on equity to price-book ratio. View historical data on ClearSign Technologies and its competitors. ClearSign Technologies's current ROE % Adjusted to Book Value is -35.58%. 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?
ClearSign Technologies (STU:4CC0) has a current ROE % Adjusted to Book Value of -35.58%. The stock's GF Value™ is €14.85, compared to a current price of €3.52 — trading 76.3% below its estimated fair value. The current ROE % Adjusted to Book Value is -35.58%. 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 ROE % Adjusted to Book Value calculated?
ROE % Adjusted to Book Value is calculated from a company's financial statements. For ClearSign Technologies (STU:4CC0), the current ROE % Adjusted to Book Value is -35.58% 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 (STU:4CC0) Overvalued in 2026?

Based on GuruFocus' analysis, ClearSign Technologies stock appears to be undervalued. The current stock price of €3.52 is trading 76.3% below its estimated GF Value™ of €14.85.

Key valuation signals for STU:4CC0:

  • ROE % Adjusted to Book Value: -35.58%
  • GF Value™: €14.85 vs. price of €3.52 (76.3% below fair value)
  • GF Score™: 40/100 with 2 warning signs

No single metric tells the full story. See the STU:4CC0 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


ClearSign Technologies Business Description

Other Exchanges CLIR:USA0I0B: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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ROE % Adjusted to Book Value is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€3.52
Price
€14.85
GF Value