FuelCell Energy (XBUL:FEY) Cyclically Adjusted Book per Share: лв196.97 (As of Apr. 2026)

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.

XBUL:FEY FuelCell Energy Inc XBUL:FEY
60 GF Score
Price лв9.44
GF Value лв3.57
! 6 Warning Signs
View Full Analysis

What is FuelCell Energy Cyclically Adjusted Book per Share?

FuelCell Energy XBUL:FEY 60 Cyclically Adjusted Book per Share is лв196.97 as of Apr. 2026. GuruFocus rates XBUL:FEY with a GF Score™ of 60/100 and a GF Value™ of лв3.57. The stock has 6 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.

FuelCell Energy's adjusted book value per share for the three months ended in Apr. 2026 was лв19.444. 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 лв196.97 for the trailing ten years ended in Apr. 2026.

During the past 12 months, FuelCell Energy's average Cyclically Adjusted Book Growth Rate was -36.90% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -17.10% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was -6.90% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was -16.40% 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 FuelCell Energy was 22.90% per year. The lowest was -41.10% per year. And the median was -6.40% per year.

As of today (2026-07-21), FuelCell Energy's current stock price is лв9.438. FuelCell Energy's Cyclically Adjusted Book per Share for the quarter that ended in Apr. 2026 was лв196.97. FuelCell Energy's Cyclically Adjusted PB Ratio of today is 0.05.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of FuelCell Energy was 1.51. The lowest was 0.01. And the median was 0.15.


FuelCell Energy  (XBUL:FEY) 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.

FuelCell Energy's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=9.438/196.97
=0.05

* 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 FuelCell Energy was 1.51. The lowest was 0.01. And the median was 0.15.


Be Aware

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


FuelCell Energy Cyclically Adjusted Book per Share Related Terms


FuelCell Energy Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for FuelCell Energy'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.

FuelCell Energy Cyclically Adjusted Book per Share Chart

FuelCell Energy Annual Data
Trend Oct16 Oct17 Oct18 Oct19 Oct20 Oct21 Oct22 Oct23 Oct24 Oct25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 476.77 362.73

FuelCell Energy Quarterly Data
Jul21 Oct21 Jan22 Apr22 Jul22 Oct22 Jan23 Apr23 Jul23 Oct23 Jan24 Apr24 Jul24 Oct24 Jan25 Apr25 Jul25 Oct25 Jan26 Apr26
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 990.32 735.84 362.73 348.23 196.97

XBUL:FEY vs ENR, AMPX, PLPC: Cyclically Adjusted Book per Share Comparison

For the Electrical Equipment & Parts subindustry, FuelCell Energy'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.


FuelCell Energy Cyclically Adjusted PB Ratio vs Industrial Products Industry

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

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


XBUL:FEY
60GF Score
FuelCell Energy Inc XBUL:FEY
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

FuelCell Energy 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, FuelCell Energy's adjusted Book Value per Share data for the three months ended in Apr. 2026 was:

Adj_Book= Book Value per Share /CPI of Apr. 2026 (Change)*Current CPI (Apr. 2026)
=19.444/333.0200*333.0200
=19.444

Current CPI (Apr. 2026) = 333.0200.

FuelCell Energy Quarterly Data

Book Value per Share CPI Adj_Book
201607 2,317.419 240.628 3,207.220
201610 2,004.857 241.729 2,762.008
201701 1,564.741 242.839 2,145.825
201704 1,307.674 244.524 1,780.936
201707 1,014.379 244.786 1,380.016
201710 901.078 246.663 1,216.546
201801 851.310 247.867 1,143.772
201804 744.432 250.546 989.482
201807 640.766 252.006 846.757
201810 530.711 252.885 698.884
201901 335.824 251.712 444.302
201904 187.702 255.548 244.606
201907 36.946 256.571 47.955
201910 20.155 257.346 26.082
202001 15.774 257.971 20.363
202004 12.040 256.389 15.639
202007 21.016 259.101 27.012
202010 34.012 260.388 43.499
202101 52.340 261.582 66.634
202104 49.376 267.054 61.573
202107 93.669 273.003 114.261
202110 90.287 276.589 108.708
202201 84.622 281.148 100.235
202204 92.105 289.109 106.094
202207 90.136 296.276 101.315
202210 86.948 298.012 97.162
202301 84.810 299.170 94.406
202304 80.873 303.363 88.779
202307 81.067 305.691 88.314
202310 78.037 307.671 84.466
202401 75.708 308.417 81.747
202404 71.916 313.548 76.382
202407 62.869 314.540 66.563
202410 55.372 315.664 58.416
202501 51.598 317.671 54.091
202504 45.937 320.795 47.688
202507 32.222 323.048 33.217
202510 24.684 0.000
202601 22.685 325.252 23.227
202604 19.444 333.020 19.444

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 лв196.97 mean?
FuelCell Energy (XBUL:FEY) has a Cyclically Adjusted Book per Share of лв196.97 as of Apr. 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 FuelCell Energy and its competitors.
Is FuelCell Energy's Cyclically Adjusted Book per Share too high?
FuelCell Energy's current Cyclically Adjusted Book per Share is лв196.97. Overall, FuelCell Energy has a GF Score™ of 60/100, reflecting its overall financial health beyond just this single metric.
How does FuelCell Energy's Cyclically Adjusted Book per Share compare to ENR and AMPX?
FuelCell Energy's Cyclically Adjusted Book per Share of лв196.97 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 FuelCell Energy and its competitors. FuelCell Energy's current Cyclically Adjusted Book per Share is лв196.97. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is FuelCell Energy stock overvalued right now?
FuelCell Energy (XBUL:FEY) has a current Cyclically Adjusted Book per Share of лв196.97. The stock's GF Value™ is лв3.57, compared to a current price of лв9.44 — trading 164.4% above its estimated fair value. The current Cyclically Adjusted Book per Share is лв196.97. FuelCell Energy's overall GF Score™ is 60/100 with 6 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 FuelCell Energy (XBUL:FEY), the current Cyclically Adjusted Book per Share is лв196.97 as of Apr. 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 FuelCell Energy (XBUL:FEY) Overvalued in 2026?

Based on GuruFocus' analysis, FuelCell Energy stock appears to be overvalued. The current stock price of лв9.44 is trading 164.4% above its estimated GF Value™ of лв3.57.

Key valuation signals for XBUL:FEY:

  • Cyclically Adjusted Book per Share: лв196.97
  • GF Value™: лв3.57 vs. price of лв9.44 (164.4% above fair value)
  • GF Score™: 60/100 with 6 warning signs

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


FuelCell Energy Business Description

Address 3 Great Pasture Road, Danbury, CT, USA, 06810
FuelCell Energy Inc is a clean energy technology company engaged in the development, design, production, and servicing of high temperature fuel cells for clean electric power generation. The Company provides proprietary molten carbonate fuel cell systems that generate electricity electrochemically with ultra low emissions and high efficiency, and operates as a solutions provider managing the design, manufacturing, installation, and maintenance of its systems under long term power purchase, service, and engineering procurement agreements. The Company serves utilities, data centers, and commercial and industrial customers, and operates in the United States, South Korea, Europe, and Canada, with maximum revenue generated from the United States.
60GF Score

Get the complete analysis for XBUL:FEY

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

лв9.44
Price
лв3.57
GF Value