FSLR (First Solar) Shiller PE Ratio: 47.11 (As of Aug. 29, 2026) — Near Median

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FSLR First Solar Inc FSLR
90 GF Score
Price $204.46
GF Value $254.72
Valuation Modestly Undervalued
! 4 Warning Signs
View Full Analysis

What is First Solar Shiller PE Ratio?

First Solar FSLR -2.68% 90 Shiller PE Ratio is 47.11 as of Aug. 29, 2026, which is 6% below its 10-year median of 50.32. GuruFocus rates FSLR with a GF Score™ of 90/100 and a GF Value™ of $254.72 (Modestly Undervalued). The stock has 4 warning signs investors should review. Among 542 Semiconductors companies, First Solar ranks worse than 54.98% on this metric.

As of today (2026-08-29), First Solar's current share price is $204.46. First Solar's E10 for the quarter that ended in Jun. 2026 was $4.34. First Solar's Shiller PE Ratio for today is 47.11.

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

FSLR' s Shiller PE Ratio Range Over the Past 10 Years
Min: 7.53   Med: 50.32   Max: 129.99
Current: 47.11

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.

FSLR's Shiller PE Ratio is ranked worse than
54.98% of 542 companies
in the Semiconductors industry
Industry Median: 40.39 vs FSLR: 47.11

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 $3.920. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $4.34 for the trailing ten years ended in Jun. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


First Solar  (NAS: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

FSLR vs NXT, ENPH, SEDG: 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.


FSLR
90GF Score
First Solar Inc 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
=204.46/4.34
=47.11

* 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)
=3.92/333.9520*333.9520
=3.920

Current CPI (Jun. 2026) = 333.9520.

First Solar Quarterly Data

Earnings per Share (Diluted) CPI Adj_EPS
201609 1.450 241.428 2.006
201612 -6.920 241.432 -9.572
201703 0.090 243.801 0.123
201706 0.500 244.955 0.682
201709 1.950 246.819 2.638
201712 -4.140 246.524 -5.608
201803 0.780 249.554 1.044
201806 -0.460 251.989 -0.610
201809 0.540 252.439 0.714
201812 0.490 251.233 0.651
201903 -0.640 254.202 -0.841
201906 -0.180 256.143 -0.235
201909 0.290 256.759 0.377
201912 -0.560 256.974 -0.728
202003 0.850 258.115 1.100
202006 0.350 257.797 0.453
202009 1.450 260.280 1.860
202012 1.080 260.474 1.385
202103 1.960 264.877 2.471
202106 0.770 271.696 0.946
202109 0.420 274.310 0.511
202112 1.230 278.802 1.473
202203 -0.410 287.504 -0.476
202206 0.520 296.311 0.586
202209 -0.460 296.808 -0.518
202212 -0.070 296.797 -0.079
202303 0.400 301.836 0.443
202306 1.590 305.109 1.740
202309 2.500 307.789 2.713
202312 3.250 306.746 3.538
202403 2.200 312.332 2.352
202406 3.250 314.175 3.455
202409 2.910 315.301 3.082
202412 3.650 315.605 3.862
202503 1.950 319.799 2.036
202506 3.180 322.561 3.292
202509 4.240 324.800 4.359
202512 4.840 324.054 4.988
202603 3.220 330.213 3.256
202606 3.920 333.952 3.920

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 47.11 mean?
First Solar (FSLR) has a Shiller PE Ratio of 47.11 as of Aug. 29, 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 #298 out of 542 companies in the Semiconductors industry, placing it in the top 55%.
Is First Solar's Shiller PE Ratio too high?
First Solar's current Shiller PE Ratio of 47.11 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 40.39. First Solar's value of 47.11 is 16.6% above this industry median. Based on the distribution chart, First Solar ranks #298 out of 542 companies in the Semiconductors industry, which is below the industry midpoint. Overall, First Solar has a GF Score™ of 90/100 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 #298 out of 542 companies for Shiller PE Ratio. This places First Solar in the lower half of its industry. The industry median Shiller PE Ratio is 40.39. First Solar's value of 47.11 is 16.6% 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 40.39, 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 40.39, based on 542 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 47.11 is 16.6% 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 40.39 — 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 47.11, 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 (FSLR) is currently considered Modestly Undervalued. The stock's GF Value™ is $254.72, compared to a current price of $204.46 — trading 19.7% below its estimated fair value. The current Shiller PE Ratio is 47.11, which is near median its 10-year median of 50.32 and 16.6% above the Semiconductors industry median of 40.39. First Solar's overall GF Score™ is 90/100 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 (FSLR), the current Shiller PE Ratio is 47.11 as of Aug. 29, 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 (FSLR) Overvalued in 2026?

Based on GuruFocus' analysis, First Solar stock appears to be undervalued. The current stock price of $204.46 is trading 19.7% below its estimated GF Value™ of $254.72. GuruFocus considers First Solar to be Modestly Undervalued.

Key valuation signals for FSLR:

  • Shiller PE Ratio: 47.11 (near median its 10-year median of 50.32)
  • GF Value™: $254.72 vs. price of $204.46 (19.7% below fair value)
  • GF Score™: 90/100 with 4 warning signs
  • Industry Position: 16.6% above the Semiconductors median (#298 of 542)

No single metric tells the full story. See the 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.
90GF Score

Get the complete analysis for FSLR

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

$204.46
Price
$254.72
GF Value