Icon (ICLR) Shiller PE Ratio: 25.07 (As of Sep. 12, 2026) — 46% Below Median

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ICLR Icon PLC ICLR
96 GF Score
Price $169.23
GF Value $207.63
Valuation Modestly Undervalued
! 5 Warning Signs
View Full Analysis

What is Icon Shiller PE Ratio?

Icon ICLR +2.20% 96 Shiller PE Ratio is 25.07 as of Sep. 12, 2026, which is 46% below its 10-year median of 46.63. GuruFocus rates ICLR with a GF Score™ of 96/100 and a GF Value™ of $207.63 (Modestly Undervalued). The stock has 5 warning signs investors should review. Among 78 Medical Diagnostics & Research companies, Icon ranks better than 55.13% on this metric.

As of today (2026-09-12), Icon's current share price is $169.23. Icon's E10 for the quarter that ended in Jun. 2026 was $6.75. Icon's Shiller PE Ratio for today is 25.07.

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

ICLR' s Shiller PE Ratio Range Over the Past 10 Years
Min: 13.98   Med: 46.63   Max: 74.02
Current: 25.08

During the past years, Icon's highest Shiller PE Ratio was 74.02. The lowest was 13.98. And the median was 46.63.

ICLR's Shiller PE Ratio is ranked better than
55.13% of 78 companies
in the Medical Diagnostics & Research industry
Industry Median: 28.56 vs ICLR: 25.08

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.

Icon's adjusted earnings per share data for the three months ended in Jun. 2026 was $0.940. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $6.75 for the trailing ten years ended in Jun. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


Icon  (NAS:ICLR) 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.


Icon Shiller PE Ratio Related Terms


Icon Shiller PE Ratio Historical Data

* Premium members only.

The historical data trend for Icon'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.

Icon Shiller PE Ratio Chart

Icon 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 71.83 37.44 47.40 31.40 27.42

Icon 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 20.72 26.75 27.42 16.40 25.74

ICLR vs CRL, RVTY, MEDP: Shiller PE Ratio Comparison

For the Diagnostics & Research subindustry, Icon'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.


Icon Shiller PE Ratio vs Medical Diagnostics & Research Industry

For the Medical Diagnostics & Research industry and Healthcare sector, Icon's Shiller PE Ratio distribution charts can be found below:

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


ICLR
96GF Score
Icon PLC ICLR
Shiller PE Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Icon 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.

Icon's Shiller PE Ratio for today is calculated as

Shiller PE Ratio=Share Price/ E10
=169.23/6.75
=25.07

* 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.

Icon's E10 for the quarter that ended in Jun. 2026 is calculated as:

For example, Icon'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)
=0.94/128.6700*128.6700
=0.940

Current CPI (Jun. 2026) = 128.6700.

Icon Quarterly Data

Earnings per Share (Diluted) CPI Adj_EPS
201609 1.130 100.274 1.450
201612 1.330 99.676 1.717
201703 1.290 100.374 1.654
201706 1.190 100.673 1.521
201709 1.350 100.474 1.729
201712 1.300 100.075 1.671
201803 1.420 100.573 1.817
201806 1.310 101.072 1.668
201809 1.540 101.371 1.955
201812 1.620 100.773 2.068
201903 1.630 101.670 2.063
201906 1.690 102.168 2.128
201909 1.720 102.268 2.164
201912 1.760 102.068 2.219
202003 1.620 102.367 2.036
202006 0.900 101.769 1.138
202009 1.720 101.072 2.190
202012 1.900 101.072 2.419
202103 1.820 102.367 2.288
202106 1.380 103.364 1.718
202109 -1.170 104.859 -1.436
202112 0.920 106.653 1.110
202203 1.360 109.245 1.602
202206 1.410 112.779 1.609
202209 1.940 113.504 2.199
202212 1.420 115.436 1.583
202303 1.410 117.609 1.543
202306 1.400 119.662 1.505
202309 1.970 120.749 2.099
202312 2.600 120.749 2.771
202403 2.250 120.990 2.393
202406 1.760 122.318 1.851
202409 2.360 121.594 2.497
202412 3.160 122.439 3.321
202503 1.990 123.405 2.075
202506 2.560 124.492 2.646
202509 -3.670 124.810 -3.784
202512 1.930 125.770 1.975
202603 1.360 127.830 1.369
202606 0.940 128.670 0.940

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 25.07 mean?
Icon (ICLR) has a Shiller PE Ratio of 25.07 as of Sep. 12, 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 Icon and its competitors. This is 46% below median its historical median of 46.63. Over the past decade, Icon's Shiller PE Ratio has ranged from 13.98 to 74.02. According to the industry distribution chart, Icon ranks #35 out of 78 companies in the Medical Diagnostics & Research industry, placing it in the top 44.9%.
Is Icon's Shiller PE Ratio too high?
Icon's current Shiller PE Ratio of 25.07 is 46% below median its 10-year median of 46.63. Over the past 10 years, this metric has ranged from a low of 13.98 to a high of 74.02. The Medical Diagnostics & Research industry median Shiller PE Ratio is 28.56. Icon's value of 25.07 is 12.2% below this industry median. Based on the distribution chart, Icon ranks #35 out of 78 companies in the Medical Diagnostics & Research industry, which is above the industry midpoint. Overall, Icon has a GF Score™ of 96/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Icon's Shiller PE Ratio compare to CRL and RVTY?
According to the Medical Diagnostics & Research industry distribution chart, Icon ranks #35 out of 78 companies for Shiller PE Ratio. This puts Icon in the upper half of its industry. The industry median Shiller PE Ratio is 28.56. Icon's value of 25.07 is 12.2% below this benchmark. Historically, Icon's own Shiller PE Ratio has ranged from 13.98 to 74.02 over the past decade. While the company's 10-year median is 46.63 vs. the industry median of 28.56, Icon has consistently been below 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 Medical Diagnostics & Research company?
The median Shiller PE Ratio among Medical Diagnostics & Research companies is 28.56, based on 78 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. Icon's current Shiller PE Ratio of 25.07 is 12.2% below 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 Icon and its competitors. For the Medical Diagnostics & Research industry, the median Shiller PE Ratio is 28.56 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Icon's current Shiller PE Ratio is 25.07, which is 46% below median its own 10-year median of 46.63. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Icon stock overvalued right now?
Based on GuruFocus' analysis, Icon (ICLR) is currently considered Modestly Undervalued. The stock's GF Value™ is $207.63, compared to a current price of $169.23 — trading 18.5% below its estimated fair value. The current Shiller PE Ratio is 25.07, which is 46% below median its 10-year median of 46.63 and 12.2% below the Medical Diagnostics & Research industry median of 28.56. Icon's overall GF Score™ is 96/100 with 5 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 Icon (ICLR), the current Shiller PE Ratio is 25.07 as of Sep. 12, 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 Icon (ICLR) Overvalued in 2026?

Based on GuruFocus' analysis, Icon stock appears to be undervalued. The current stock price of $169.23 is trading 18.5% below its estimated GF Value™ of $207.63. GuruFocus considers Icon to be Modestly Undervalued.

Key valuation signals for ICLR:

  • Shiller PE Ratio: 25.07 (46% below median its 10-year median of 46.63)
  • GF Value™: $207.63 vs. price of $169.23 (18.5% below fair value)
  • GF Score™: 96/100 with 5 warning signs
  • Industry Position: 12.2% below the Medical Diagnostics & Research median (#35 of 78)

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


Icon Business Description

Other Exchanges IJF:GermanyICLR34:Brazil
Address South County Business Park, Leopardstown, Dublin, IRL, D18 X5R3
Icon is a global contract research organization that provides outsourced clinical development services to pharmaceutical and biotechnology firms. Icon supports clients across late-stage clinical trials through the regulatory approval process and postmarket studies. Icon's services include clinical trial management, patient recruitment, data analytics, laboratory services, and regulatory consulting. With more than 40,000 employees operating in over 50 countries, the company partners with life sciences firms to run clinical trials and bring new drugs to market.
96GF Score

Get the complete analysis for ICLR

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

$169.23
Price
$207.63
GF Value