First Solar (MIL:1FSLR) Cyclically Adjusted PB Ratio: 3.18 (As of Jul. 22, 2026) — 98% Above Median

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MIL:1FSLR First Solar Inc MIL:1FSLR
66 GF Score
Price €180.80
GF Value €232.53
Valuation Modestly Undervalued
! 5 Warning Signs
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What is First Solar Cyclically Adjusted PB Ratio?

First Solar MIL:1FSLR -0.11% 66 Cyclically Adjusted PB Ratio is 3.18 as of Jul. 22, 2026, which is 98% above its 10-year median of 1.61. GuruFocus rates MIL:1FSLR with a GF Score™ of 66/100 and a GF Value™ of €232.53 (Modestly Undervalued). The stock has 5 warning signs investors should review. Among 735 Semiconductors companies, First Solar ranks better than 52.38% on this metric.

As of today (2026-07-22), First Solar's current share price is €180.80. First Solar's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was €56.79. First Solar's Cyclically Adjusted PB Ratio for today is 3.18.

The historical rank and industry rank for First Solar's Cyclically Adjusted PB Ratio or its related term are showing as below:

MIL:1FSLR' s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 0.66   Med: 1.61   Max: 4.47
Current: 3

During the past years, First Solar's highest Cyclically Adjusted PB Ratio was 4.47. The lowest was 0.66. And the median was 1.61.

MIL:1FSLR's Cyclically Adjusted PB Ratio is ranked better than
52.38% of 735 companies
in the Semiconductors industry
Industry Median: 3.18 vs MIL:1FSLR: 3.00

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 adjusted book value per share data for the three months ended in Mar. 2026 was €79.523. 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 €56.79 for the trailing ten years ended in Mar. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


First Solar  (MIL:1FSLR) Cyclically Adjusted PB Ratio Explanation

Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.


First Solar Cyclically Adjusted PB Ratio Related Terms


First Solar Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for First Solar's Cyclically Adjusted PB Ratio 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 PB Ratio Chart

First Solar Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1.57 2.51 2.79 2.75 3.90

First Solar Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Cyclically Adjusted PB Ratio 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 1.94 2.50 3.30 3.90 2.87

MIL:1FSLR vs NXT, ENPH, RUN: Cyclically Adjusted PB Ratio 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.


MIL:1FSLR
66GF Score
First Solar Inc MIL:1FSLR
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

First Solar Cyclically Adjusted PB Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.

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

Cyclically Adjusted PB Ratio=Share Price/ Cyclically Adjusted Book per Share
=180.80/56.79
=3.18

* 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's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 is calculated as:

For example, First Solar'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)
=79.523/330.2130*330.2130
=79.523

Current CPI (Mar. 2026) = 330.2130.

First Solar Quarterly Data

Book Value per Share CPI Adj_Book
201606 50.475 241.018 69.155
201609 50.982 241.428 69.731
201612 47.551 241.432 65.037
201703 46.869 243.801 63.481
201706 45.110 244.955 60.811
201709 44.286 246.819 59.249
201712 41.241 246.524 55.241
201803 39.940 249.554 52.849
201806 41.746 251.989 54.705
201809 42.280 252.439 55.306
201812 43.683 251.233 57.416
201903 43.087 254.202 55.971
201906 43.122 256.143 55.592
201909 44.644 256.759 57.416
201912 43.501 256.974 55.899
202003 44.167 258.115 56.504
202006 43.803 257.797 56.107
202009 43.230 260.280 54.845
202012 42.821 260.474 54.286
202103 44.996 264.877 56.095
202106 45.151 271.696 54.875
202109 46.607 274.310 56.105
202112 49.601 278.802 58.747
202203 50.052 287.504 57.487
202206 52.324 296.311 58.311
202209 55.218 296.808 61.433
202212 51.677 296.797 57.495
202303 51.312 301.836 56.136
202306 52.181 305.109 56.474
202309 55.271 307.789 59.298
202312 57.394 306.746 61.785
202403 59.326 312.332 62.722
202406 62.966 314.175 66.180
202409 63.908 315.301 66.930
202412 71.162 315.605 74.456
202503 70.617 319.799 72.917
202506 69.088 322.561 70.727
202509 71.579 324.800 72.772
202512 75.906 324.054 77.349
202603 79.523 330.213 79.523

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

What does a Cyclically Adjusted PB Ratio of 3.18 mean?
First Solar (MIL:1FSLR) has a Cyclically Adjusted PB Ratio of 3.18 as of Jul. 22, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on First Solar and its competitors. This is 98% above median its historical median of 1.61. Over the past decade, First Solar's Cyclically Adjusted PB Ratio has ranged from 0.66 to 4.47. According to the industry distribution chart, First Solar ranks #350 out of 735 companies in the Semiconductors industry, placing it in the top 47.6%.
Is First Solar's Cyclically Adjusted PB Ratio too high?
First Solar's current Cyclically Adjusted PB Ratio of 3.18 is 98% above median its 10-year median of 1.61. Over the past 10 years, this metric has ranged from a low of 0.66 to a high of 4.47. The Semiconductors industry median Cyclically Adjusted PB Ratio is 3.18. First Solar's value of 3.18 is 0% at this industry median. Based on the distribution chart, First Solar ranks #350 out of 735 companies in the Semiconductors industry, which is above the industry midpoint. Overall, First Solar has a GF Score™ of 66/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does First Solar's Cyclically Adjusted PB Ratio compare to NXT and ENPH?
According to the Semiconductors industry distribution chart, First Solar ranks #350 out of 735 companies for Cyclically Adjusted PB Ratio. This puts First Solar in the upper half of its industry. The industry median Cyclically Adjusted PB Ratio is 3.18. First Solar's value of 3.18 is 0% at this benchmark. Historically, First Solar's own Cyclically Adjusted PB Ratio has ranged from 0.66 to 4.47 over the past decade. While the company's 10-year median is 1.61 vs. the industry median of 3.18, First Solar has consistently been at the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted PB Ratio for a Semiconductors company?
The median Cyclically Adjusted PB Ratio among Semiconductors companies is 3.18, based on 735 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. First Solar's current Cyclically Adjusted PB Ratio of 3.18 is 0% at the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on First Solar and its competitors. For the Semiconductors industry, the median Cyclically Adjusted PB Ratio is 3.18 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. First Solar's current Cyclically Adjusted PB Ratio is 3.18, which is 98% above median its own 10-year median of 1.61. 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 (MIL:1FSLR) is currently considered Modestly Undervalued. The stock's GF Value™ is €232.53, compared to a current price of €180.80 — trading 22.2% below its estimated fair value. The current Cyclically Adjusted PB Ratio is 3.18, which is 98% above median its 10-year median of 1.61 and 0% at the Semiconductors industry median of 3.18. First Solar's overall GF Score™ is 66/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For First Solar (MIL:1FSLR), the current Cyclically Adjusted PB Ratio is 3.18 as of Jul. 22, 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 (MIL:1FSLR) Overvalued in 2026?

Based on GuruFocus' analysis, First Solar stock appears to be undervalued. The current stock price of €180.80 is trading 22.2% below its estimated GF Value™ of €232.53. GuruFocus considers First Solar to be Modestly Undervalued.

Key valuation signals for MIL:1FSLR:

  • Cyclically Adjusted PB Ratio: 3.18 (98% above median its 10-year median of 1.61)
  • GF Value™: €232.53 vs. price of €180.80 (22.2% below fair value)
  • GF Score™: 66/100 with 5 warning signs
  • Industry Position: 0% at the Semiconductors median (#350 of 735)

No single metric tells the full story. See the MIL:1FSLR 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.
66GF Score

Get the complete analysis for MIL:1FSLR

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

€180.80
Price
€232.53
GF Value