CLIR (ClearSign Technologies) Cyclically Adjusted Book per Share: $3.89 (As of Jun. 2026)

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CLIR ClearSign Technologies Corp CLIR
27 GF Score
Price $4.48
! 3 Warning Signs
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What is ClearSign Technologies Cyclically Adjusted Book per Share?

ClearSign Technologies CLIR -4.40% 27 Cyclically Adjusted Book per Share is $3.89 as of Jun. 2026. GuruFocus rates CLIR with a GF Score™ of 27/100. The stock has 3 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

ClearSign Technologies's adjusted book value per share for the three months ended in Jun. 2026 was $1.559. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is $3.89 for the trailing ten years ended in Jun. 2026.

During the past 12 months, ClearSign Technologies's average Cyclically Adjusted Book Growth Rate was -19.00% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -12.80% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was -7.40% per year. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the Cyclically Adjusted Book Growth Rate using Cyclically Adjusted Book per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of ClearSign Technologies was -2.10% per year. The lowest was -12.80% per year. And the median was -6.40% per year.

As of today (2026-08-22), ClearSign Technologies's current stock price is $4.4787. ClearSign Technologies's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was $3.89. ClearSign Technologies's Cyclically Adjusted PB Ratio of today is 1.15.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of ClearSign Technologies was 9.23. The lowest was 0.82. And the median was 1.63.


ClearSign Technologies  (NAS:CLIR) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.

ClearSign Technologies's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=4.4787/3.89
=1.15

* 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.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of ClearSign Technologies was 9.23. The lowest was 0.82. And the median was 1.63.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


ClearSign Technologies Cyclically Adjusted Book per Share Related Terms


ClearSign Technologies Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for ClearSign Technologies's Cyclically Adjusted Book per Share 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 Cyclically Adjusted Book per Share Chart

ClearSign Technologies Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 6.69 6.30 5.85 5.49 4.18

ClearSign Technologies Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Cyclically Adjusted Book per Share 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 4.80 4.48 4.18 4.02 3.89

CLIR vs LIQT, RAIN, EESH: Cyclically Adjusted Book per Share Comparison

For the Pollution & Treatment Controls subindustry, ClearSign Technologies's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB Ratio 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 Cyclically Adjusted PB Ratio vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, ClearSign Technologies's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where ClearSign Technologies's Cyclically Adjusted PB Ratio falls into.


CLIR
27GF Score
ClearSign Technologies Corp CLIR
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
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ClearSign Technologies Cyclically Adjusted Book per Share Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

What is Cyclically Adjusted Book per Share? How do we calculate Cyclically Adjusted Book per Share?

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

We adjusted the 2001 book value per share data with the total inflation from 2001 through 2010 to the equivalent book value in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's book value is $1 a share in 2001, then the 2001's equivalent book value in 2010 is $1.4 a share. If Wal-Mart's book value is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 book value in 2010 is $1.35. So on and so forth, you get the equivalent book value per share of past 10 years. Then you add them together and divided the sum by the count to get Cyclically Adjusted Book per Share.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

For example, ClearSign Technologies's adjusted Book Value per Share data for the three months ended in Jun. 2026 was:

Adj_Book= Book Value per Share /CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=1.559/333.9520*333.9520
=1.559

Current CPI (Jun. 2026) = 333.9520.

ClearSign Technologies Quarterly Data

Book Value per Share CPI Adj_Book
201609 3.352 241.428 4.637
201612 1.729 241.432 2.392
201703 5.931 243.801 8.124
201706 4.602 244.955 6.274
201709 3.111 246.819 4.209
201712 1.558 246.524 2.111
201803 5.682 249.554 7.604
201806 4.629 251.989 6.135
201809 7.251 252.439 9.592
201812 6.333 251.233 8.418
201903 5.587 254.202 7.340
201906 4.758 256.143 6.203
201909 4.014 256.759 5.221
201912 3.453 256.974 4.487
202003 2.849 258.115 3.686
202006 2.372 257.797 3.073
202009 3.651 260.280 4.684
202012 3.172 260.474 4.067
202103 3.811 264.877 4.805
202106 3.730 271.696 4.585
202109 2.984 274.310 3.633
202112 2.623 278.802 3.142
202203 2.353 287.504 2.733
202206 2.804 296.311 3.160
202209 2.840 296.808 3.195
202212 2.512 296.797 2.826
202303 2.227 301.836 2.464
202306 1.856 305.109 2.031
202309 1.542 307.789 1.673
202312 1.342 306.746 1.461
202403 1.143 312.332 1.222
202406 3.164 314.175 3.363
202409 2.951 315.301 3.126
202412 2.737 315.605 2.896
202503 2.297 319.799 2.399
202506 1.986 322.561 2.056
202509 1.728 324.800 1.777
202512 1.788 324.054 1.843
202603 1.410 330.213 1.426
202606 1.559 333.952 1.559

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

What does a Cyclically Adjusted Book per Share of $3.89 mean?
ClearSign Technologies (CLIR) has a Cyclically Adjusted Book per Share of $3.89 as of Jun. 2026. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on ClearSign Technologies and its competitors.
Is ClearSign Technologies' Cyclically Adjusted Book per Share too high?
ClearSign Technologies' current Cyclically Adjusted Book per Share is $3.89. Overall, ClearSign Technologies has a GF Score™ of 27/100, reflecting its overall financial health beyond just this single metric.
How does ClearSign Technologies' Cyclically Adjusted Book per Share compare to LIQT and RAIN?
ClearSign Technologies' Cyclically Adjusted Book per Share of $3.89 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 Cyclically Adjusted Book per Share for an Industrial Products company?
A good Cyclically Adjusted Book per Share depends on the Industrial Products industry context. However, Cyclically Adjusted Book per Share 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 Cyclically Adjusted Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on ClearSign Technologies and its competitors. ClearSign Technologies's current Cyclically Adjusted Book per Share is $3.89. 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 (CLIR) has a current Cyclically Adjusted Book per Share of $3.89. The current Cyclically Adjusted Book per Share is $3.89. ClearSign Technologies' overall GF Score™ is 27/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For ClearSign Technologies (CLIR), the current Cyclically Adjusted Book per Share is $3.89 as of Jun. 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.

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.
27GF Score

Get the complete analysis for CLIR

Cyclically Adjusted Book per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

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