First Solar (MEX:FSLR) Shiller PE Ratio: 45.95 (As of Sep. 03, 2026) — Near Median

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MEX:FSLR First Solar Inc MEX:FSLR
85 GF Score
Price MXN3,439.95
GF Value MXN4,315.56
Valuation Modestly Undervalued
! 4 Warning Signs
View Full Analysis

What is First Solar Shiller PE Ratio?

First Solar MEX:FSLR +1.92% 85 Shiller PE Ratio is 45.95 as of Sep. 03, 2026, which is 9% below its 10-year median of 50.32. GuruFocus rates MEX:FSLR with a GF Score™ of 85/100 and a GF Value™ of MXN4,315.56 (Modestly Undervalued). The stock has 4 warning signs investors should review. Among 543 Semiconductors companies, First Solar ranks worse than 53.41% on this metric.

As of today (2026-09-03), First Solar's current share price is MXN3439.95. First Solar's E10 for the quarter that ended in Jun. 2026 was MXN74.86. First Solar's Shiller PE Ratio for today is 45.95.

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

MEX:FSLR' s Shiller PE Ratio Range Over the Past 10 Years
Min: 7.53   Med: 50.32   Max: 129.99
Current: 46.69

During the past years, First Solar's highest Shiller PE Ratio was 129.99. The lowest was 7.53. And the median was 50.32.

MEX:FSLR's Shiller PE Ratio is ranked worse than
53.41% of 543 companies
in the Semiconductors industry
Industry Median: 41.89 vs MEX:FSLR: 46.69

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.

First Solar's adjusted earnings per share data for the three months ended in Jun. 2026 was MXN68.400. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is MXN74.86 for the trailing ten years ended in Jun. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


First Solar  (MEX:FSLR) Shiller PE Ratio Explanation

Compared with the regular PE Ratio, which works poorly for cyclical businesses, the Shiller PE Ratio smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Shiller PE Ratio should give similar results to regular PE Ratio.

Compared with the PS Ratio, the Shiller PE Ratio makes the comparison between different industries more meaningful.


Be Aware

Shiller PE Ratio assumes that over the long term, businesses and profitability revert to their means. If a company's business model does not work in the future compared with the past, Shiller PE Ratio and PS Ratio will give false valuations.


First Solar Shiller PE Ratio Related Terms


First Solar Shiller PE Ratio Historical Data

* Premium members only.

The historical data trend for First Solar's Shiller PE 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 Shiller PE Ratio Chart

First Solar Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Shiller PE Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 52.77 80.08 77.12 59.16 69.51

First Solar Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Shiller PE 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 47.05 62.98 69.51 50.73 54.38

MEX:FSLR vs NXT, ENPH, RUN: Shiller PE Ratio Comparison

For the Solar subindustry, First Solar's Shiller PE Ratio, along with its competitors' market caps and Shiller PE 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 Shiller PE Ratio vs Semiconductors Industry

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

* The bar in red indicates where First Solar's Shiller PE Ratio falls into.


MEX:FSLR
85GF Score
First Solar Inc MEX:FSLR
Shiller PE Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

First Solar Shiller PE Ratio Calculation

For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller PE Ratio is also called PE10.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.

First Solar's Shiller PE Ratio for today is calculated as

Shiller PE Ratio=Share Price/ E10
=3439.95/74.86
=45.95

* 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 E10 for the quarter that ended in Jun. 2026 is calculated as:

For example, First Solar's adjusted earnings per share data for the three months ended in Jun. 2026 was:

Adj_EPS=Earnings per Share (Diluted)/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=68.4/333.9520*333.9520
=68.400

Current CPI (Jun. 2026) = 333.9520.

First Solar Quarterly Data

Earnings per Share (Diluted) CPI Adj_EPS
201609 28.036 241.428 38.780
201612 -142.670 241.432 -197.343
201703 1.695 243.801 2.322
201706 9.038 244.955 12.322
201709 35.389 246.819 47.882
201712 -81.308 246.524 -110.143
201803 14.171 249.554 18.964
201806 -9.039 251.989 -11.979
201809 10.101 252.439 13.363
201812 9.621 251.233 12.789
201903 -12.415 254.202 -16.310
201906 -3.458 256.143 -4.508
201909 5.725 256.759 7.446
201912 -10.562 256.974 -13.726
202003 19.931 258.115 25.787
202006 8.079 257.797 10.466
202009 32.032 260.280 41.099
202012 21.483 260.474 27.543
202103 40.064 264.877 50.512
202106 15.328 271.696 18.840
202109 8.636 274.310 10.514
202112 25.232 278.802 30.223
202203 -8.164 287.504 -9.483
202206 10.461 296.311 11.790
202209 -9.253 296.808 -10.411
202212 -1.365 296.797 -1.536
202303 7.210 301.836 7.977
202306 27.259 305.109 29.836
202309 43.547 307.789 47.249
202312 55.166 306.746 60.059
202403 36.512 312.332 39.039
202406 59.540 314.175 63.288
202409 57.299 315.301 60.688
202412 76.123 315.605 80.548
202503 39.893 319.799 41.659
202506 59.877 322.561 61.992
202509 77.779 324.800 79.971
202512 87.148 324.054 89.810
202603 58.065 330.213 58.722
202606 68.400 333.952 68.400

Add all the adjusted EPS together and divide 10 will get our E10.

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.

Frequently Asked Questions Learn more about Shiller PE Ratio →
What does a Shiller PE Ratio of 45.95 mean?
First Solar (MEX:FSLR) has a Shiller PE Ratio of 45.95 as of Sep. 03, 2026. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on First Solar and its competitors. This is near median its historical median of 50.32. Over the past decade, First Solar's Shiller PE Ratio has ranged from 7.53 to 129.99. According to the industry distribution chart, First Solar ranks #290 out of 543 companies in the Semiconductors industry, placing it in the top 53.4%.
Is First Solar's Shiller PE Ratio too high?
First Solar's current Shiller PE Ratio of 45.95 is near median its 10-year median of 50.32. Over the past 10 years, this metric has ranged from a low of 7.53 to a high of 129.99. The Semiconductors industry median Shiller PE Ratio is 41.89. First Solar's value of 45.95 is 9.7% above this industry median. Based on the distribution chart, First Solar ranks #290 out of 543 companies in the Semiconductors industry, which is below the industry midpoint. Overall, First Solar has a GF Score™ of 85/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does First Solar's Shiller PE Ratio compare to NXT and ENPH?
According to the Semiconductors industry distribution chart, First Solar ranks #290 out of 543 companies for Shiller PE Ratio. This places First Solar in the lower half of its industry. The industry median Shiller PE Ratio is 41.89. First Solar's value of 45.95 is 9.7% above this benchmark. Historically, First Solar's own Shiller PE Ratio has ranged from 7.53 to 129.99 over the past decade. While the company's 10-year median is 50.32 vs. the industry median of 41.89, First Solar has consistently been above 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 Shiller PE Ratio for a Semiconductors company?
The median Shiller PE Ratio among Semiconductors companies is 41.89, based on 543 companies in the industry. Companies in the top quartile (top 25%) have a Shiller PE Ratio significantly above this median, while those in the bottom quartile fall well below. However, Shiller PE Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. First Solar's current Shiller PE Ratio of 45.95 is 9.7% above 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 Shiller PE Ratio mean?
A high Shiller PE Ratio can signal that a stock is expensive relative to its fundamentals. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on First Solar and its competitors. For the Semiconductors industry, the median Shiller PE Ratio is 41.89 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. First Solar's current Shiller PE Ratio is 45.95, which is near median its own 10-year median of 50.32. 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 (MEX:FSLR) is currently considered Modestly Undervalued. The stock's GF Value™ is MXN4,315.56, compared to a current price of MXN3,439.95 — trading 20.3% below its estimated fair value. The current Shiller PE Ratio is 45.95, which is near median its 10-year median of 50.32 and 9.7% above the Semiconductors industry median of 41.89. First Solar's overall GF Score™ is 85/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Shiller PE Ratio calculated?
Shiller PE Ratio is calculated from a company's financial statements. For First Solar (MEX:FSLR), the current Shiller PE Ratio is 45.95 as of Sep. 03, 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 (MEX:FSLR) Overvalued in 2026?

Based on GuruFocus' analysis, First Solar stock appears to be undervalued. The current stock price of MXN3,439.95 is trading 20.3% below its estimated GF Value™ of MXN4,315.56. GuruFocus considers First Solar to be Modestly Undervalued.

Key valuation signals for MEX:FSLR:

  • Shiller PE Ratio: 45.95 (near median its 10-year median of 50.32)
  • GF Value™: MXN4,315.56 vs. price of MXN3,439.95 (20.3% below fair value)
  • GF Score™: 85/100 with 4 warning signs
  • Industry Position: 9.7% above the Semiconductors median (#290 of 543)

No single metric tells the full story. See the MEX:FSLR 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.
85GF Score

Get the complete analysis for MEX:FSLR

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

MXN3,439.95
Price
MXN4,315.56
GF Value