FTEK (Fuel Tech) Cyclically Adjusted Book per Share: $1.71 (As of Mar. 2026)


FTEK Fuel Tech Inc FTEK
61 GF Score
Price $1.88
GF Value $1.13
Valuation Significantly Overvalued
! 4 Warning Signs
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What is Fuel Tech Cyclically Adjusted Book per Share?

Fuel Tech FTEK -10.10% 61 Cyclically Adjusted Book per Share is $1.71 as of Mar. 2026. GuruFocus rates FTEK with a GF Score™ of 61/100 and a GF Value™ of $1.13 (Significantly Overvalued). The stock has 4 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.

Fuel Tech's adjusted book value per share for the three months ended in Mar. 2026 was $1.237. 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 $1.71 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Fuel Tech's average Cyclically Adjusted Book Growth Rate was -9.50% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -11.50% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was -9.30% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was -6.60% 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 Fuel Tech was 19.90% per year. The lowest was -11.50% per year. And the median was 4.80% per year.

As of today (2026-07-05), Fuel Tech's current stock price is $1.875. Fuel Tech's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was $1.71. Fuel Tech's Cyclically Adjusted PB Ratio of today is 1.10.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Fuel Tech was 2.08. The lowest was 0.13. And the median was 0.48.


Fuel Tech  (NAS:FTEK) 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.

Fuel Tech's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=1.875/1.71
=1.10

* 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 Fuel Tech was 2.08. The lowest was 0.13. And the median was 0.48.


Be Aware

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


Fuel Tech Cyclically Adjusted Book per Share Related Terms


Fuel Tech Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Fuel Tech'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.

Fuel Tech Cyclically Adjusted Book per Share Chart

Fuel Tech 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 2.67 2.50 2.22 1.94 1.73

Fuel Tech Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
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 1.89 1.84 1.79 1.73 1.71

FTEK vs BCHT, SCWO, ARQ: Cyclically Adjusted Book per Share Comparison

For the Pollution & Treatment Controls subindustry, Fuel Tech'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.


Fuel Tech Cyclically Adjusted PB Ratio vs Industrial Products Industry

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

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


FTEK
61GF Score
Fuel Tech Inc FTEK
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Fuel Tech 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, Fuel Tech's adjusted Book Value per Share data for the three months ended in Mar. 2026 was:

Adj_Book= Book Value per Share /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=1.237/330.2130*330.2130
=1.237

Current CPI (Mar. 2026) = 330.2130.

Fuel Tech Quarterly Data

Book Value per Share CPI Adj_Book
201606 2.341 241.018 3.207
201609 2.235 241.428 3.057
201612 1.851 241.432 2.532
201703 1.741 243.801 2.358
201706 1.468 244.955 1.979
201709 1.461 246.819 1.955
201712 1.416 246.524 1.897
201803 1.435 249.554 1.899
201806 1.341 251.989 1.757
201809 1.378 252.439 1.803
201812 1.409 251.233 1.852
201903 1.364 254.202 1.772
201906 1.328 256.143 1.712
201909 1.267 256.759 1.629
201912 1.064 256.974 1.367
202003 0.952 258.115 1.218
202006 0.855 257.797 1.095
202009 0.965 260.280 1.224
202012 0.885 260.474 1.122
202103 1.537 264.877 1.916
202106 1.517 271.696 1.844
202109 1.535 274.310 1.848
202112 1.527 278.802 1.809
202203 1.490 287.504 1.711
202206 1.472 296.311 1.640
202209 1.480 296.808 1.647
202212 1.480 296.797 1.647
202303 1.472 301.836 1.610
202306 1.437 305.109 1.555
202309 1.451 307.789 1.557
202312 1.439 306.746 1.549
202403 1.447 312.332 1.530
202406 1.419 314.175 1.491
202409 1.428 315.301 1.496
202412 1.366 315.605 1.429
202503 1.347 319.799 1.391
202506 1.309 322.561 1.340
202509 1.320 324.800 1.342
202512 1.285 324.054 1.309
202603 1.237 330.213 1.237

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 $1.71 mean?
Fuel Tech (FTEK) has a Cyclically Adjusted Book per Share of $1.71 as of Mar. 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 Fuel Tech and its competitors.
Is Fuel Tech's Cyclically Adjusted Book per Share too high?
Fuel Tech's current Cyclically Adjusted Book per Share is $1.71. Overall, Fuel Tech has a GF Score™ of 61/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Fuel Tech's Cyclically Adjusted Book per Share compare to BCHT and SCWO?
Fuel Tech's Cyclically Adjusted Book per Share of $1.71 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 Fuel Tech and its competitors. Fuel Tech's current Cyclically Adjusted Book per Share is $1.71. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Fuel Tech stock overvalued right now?
Based on GuruFocus' analysis, Fuel Tech (FTEK) is currently considered Significantly Overvalued. The stock's GF Value™ is $1.13, compared to a current price of $1.88 — trading 65.9% above its estimated fair value. The current Cyclically Adjusted Book per Share is $1.71. Fuel Tech's overall GF Score™ is 61/100 with 4 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 Fuel Tech (FTEK), the current Cyclically Adjusted Book per Share is $1.71 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 Fuel Tech (FTEK) Overvalued in 2026?

Based on GuruFocus' analysis, Fuel Tech stock appears to be overvalued. The current stock price of $1.88 is trading 65.9% above its estimated GF Value™ of $1.13. GuruFocus considers Fuel Tech to be Significantly Overvalued.

Key valuation signals for FTEK:

  • Cyclically Adjusted Book per Share: $1.71
  • GF Value™: $1.13 vs. price of $1.88 (65.9% above fair value)
  • GF Score™: 61/100 with 4 warning signs

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


Fuel Tech Business Description

Other Exchanges FUE1:Germany
Address 27601 Bella Vista Parkway, Warrenville, IL, USA, 60555-1617
Fuel Tech Inc is a technology provider of boiler optimization, efficiency improvement, and air pollution reduction to utility and industrial customers. The company operates in two segments, Air Pollution Control and Fuel Chem. The Air Pollution Control technology segment includes technologies to reduce NOx emissions in flue gas from boilers, incinerators, furnaces, and other stationary combustion sources. The Fuel Chem technology segment uses chemical processes in combination with Computational Fluid Dynamics and Chemical Kinetics Modeling for boiler modeling for the control of slagging, fouling, corrosion, opacity and other sulfur trioxide-related issues in furnaces and boilers through the addition of chemicals into the furnace using TIFI Targeted In-Furnace Injection technology.
61GF Score

Get the complete analysis for FTEK

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

$1.88
Price
$1.13
GF Value