First Solar (BSP:FSLR34) Cyclically Adjusted Book per Share: R$17.88 (As of Jun. 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.

BSP:FSLR34 First Solar Inc BSP:FSLR34
88 GF Score
Price R$52.99
GF Value R$65.99
Valuation Modestly Undervalued
! 4 Warning Signs
View Full Analysis

What is First Solar Cyclically Adjusted Book per Share?

First Solar BSP:FSLR34 -2.32% 88 Cyclically Adjusted Book per Share is R$17.88 as of Jun. 2026. GuruFocus rates BSP:FSLR34 with a GF Score™ of 88/100 and a GF Value™ of R$65.99 (Modestly Undervalued). 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.

First Solar's adjusted book value per share for the three months ended in Jun. 2026 was R$24.604. 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 R$17.88 for the trailing ten years ended in Jun. 2026.

During the past 12 months, First Solar's average Cyclically Adjusted Book Growth Rate was 5.70% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 4.00% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 5.20% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 6.50% 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 First Solar was 11.50% per year. The lowest was 4.00% per year. And the median was 5.95% per year.

As of today (2026-08-29), First Solar's current stock price is R$52.99. First Solar's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was R$17.88. First Solar's Cyclically Adjusted PB Ratio of today is 2.96.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of First Solar was 4.47. The lowest was 0.66. And the median was 1.63.


First Solar  (BSP:FSLR34) 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.

First Solar's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=52.99/17.88
=2.96

* 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 First Solar was 4.47. The lowest was 0.66. 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.


First Solar Cyclically Adjusted Book per Share Related Terms


First Solar Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for First Solar'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.

First Solar Cyclically Adjusted Book per Share Chart

First Solar 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 15.62 15.83 14.94 19.92 18.79

First Solar 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 18.05 17.89 18.79 16.89 17.88

BSP:FSLR34 vs NXT, ENPH, SEDG: Cyclically Adjusted Book per Share Comparison

For the Solar subindustry, First Solar'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.


First Solar Cyclically Adjusted PB Ratio vs Semiconductors Industry

For the Semiconductors industry and Technology sector, First Solar's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


BSP:FSLR34
88GF Score
First Solar Inc BSP:FSLR34
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

First Solar 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, First Solar'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)
=24.604/333.9520*333.9520
=24.604

Current CPI (Jun. 2026) = 333.9520.

First Solar Quarterly Data

Book Value per Share CPI Adj_Book
201609 9.307 241.428 12.874
201612 8.412 241.432 11.636
201703 7.839 243.801 10.738
201706 8.351 244.955 11.385
201709 8.267 246.819 11.185
201712 8.041 246.524 10.893
201803 8.074 249.554 10.805
201806 9.195 251.989 12.186
201809 10.135 252.439 13.408
201812 9.650 251.233 12.827
201903 9.349 254.202 12.282
201906 9.393 256.143 12.246
201909 10.127 256.759 13.172
201912 9.919 256.974 12.890
202003 11.923 258.115 15.426
202006 12.797 257.797 16.577
202009 13.748 260.280 17.639
202012 13.400 260.474 17.180
202103 15.093 264.877 19.029
202106 13.677 271.696 16.811
202109 14.473 274.310 17.620
202112 15.847 278.802 18.982
202203 13.716 287.504 15.932
202206 13.960 296.311 15.733
202209 14.334 296.808 16.128
202212 14.357 296.797 16.154
202303 14.307 301.836 15.829
202306 13.720 305.109 15.017
202309 14.566 307.789 15.804
202312 15.334 306.746 16.694
202403 16.056 312.332 17.167
202406 18.253 314.175 19.402
202409 19.640 315.301 20.802
202412 22.731 315.605 24.052
202503 21.980 319.799 22.953
202506 22.096 322.561 22.876
202509 22.528 324.800 23.163
202512 24.246 324.054 24.987
202603 24.039 330.213 24.311
202606 24.604 333.952 24.604

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 R$17.88 mean?
First Solar (BSP:FSLR34) has a Cyclically Adjusted Book per Share of R$17.88 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 First Solar and its competitors.
Is First Solar's Cyclically Adjusted Book per Share too high?
First Solar's current Cyclically Adjusted Book per Share is R$17.88. Overall, First Solar has a GF Score™ of 88/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does First Solar's Cyclically Adjusted Book per Share compare to NXT and ENPH?
First Solar's Cyclically Adjusted Book per Share of R$17.88 can be compared against companies in the Semiconductors 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 a Semiconductors company?
A good Cyclically Adjusted Book per Share depends on the Semiconductors 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 First Solar and its competitors. First Solar's current Cyclically Adjusted Book per Share is R$17.88. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is First Solar stock overvalued right now?
Based on GuruFocus' analysis, First Solar (BSP:FSLR34) is currently considered Modestly Undervalued. The stock's GF Value™ is R$65.99, compared to a current price of R$52.99 — trading 19.7% below its estimated fair value. The current Cyclically Adjusted Book per Share is R$17.88. First Solar's overall GF Score™ is 88/100 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 First Solar (BSP:FSLR34), the current Cyclically Adjusted Book per Share is R$17.88 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.

Is First Solar (BSP:FSLR34) Overvalued in 2026?

Based on GuruFocus' analysis, First Solar stock appears to be undervalued. The current stock price of R$52.99 is trading 19.7% below its estimated GF Value™ of R$65.99. GuruFocus considers First Solar to be Modestly Undervalued.

Key valuation signals for BSP:FSLR34:

  • Cyclically Adjusted Book per Share: R$17.88
  • GF Value™: R$65.99 vs. price of R$52.99 (19.7% below fair value)
  • GF Score™: 88/100 with 4 warning signs

No single metric tells the full story. See the BSP:FSLR34 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


First Solar Business Description

Address 4300 East Camelback Road, Suite 220, Phoenix, AZ, USA, 85018
First Solar designs and manufactures solar photovoltaic panels, modules, and systems for use in utility-scale development projects. The company's solar modules use cadmium telluride to convert sunlight into electricity. This is commonly called thin-film technology. First Solar is the world's largest thin-film solar module manufacturer. It has production lines in Vietnam, Malaysia, the United States, and India.
88GF Score

Get the complete analysis for BSP:FSLR34

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

R$52.99
Price
R$65.99
GF Value