ILMN (Illumina) E10: $-0.27 (As of Jun. 2026)

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Director of Data and Quant Analytics at GuruFocus
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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.

ILMN Illumina Inc ILMN
64 GF Score
Price $244.45
GF Value $132.96
Valuation Significantly Overvalued
! 7 Warning Signs
View Full Analysis

What is Illumina E10?

Illumina ILMN +6.78% 64 E10 is $-0.27 as of Jun. 2026. GuruFocus rates ILMN with a GF Score™ of 64/100 and a GF Value™ of $132.96 (Significantly Overvalued). The stock has 7 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.

Illumina's adjusted earnings per share data for the three months ended in Jun. 2026 was $1.353. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is $-0.27 for the trailing ten years ended in Jun. 2026.

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 E10 growth rate using E10 data.

During the past 13 years, the highest 3-Year average E10 Growth Rate of Illumina was 234.70% per year. The lowest was -41.90% per year. And the median was 44.20% per year.

As of today (2026-09-17), Illumina's current stock price is $244.45. Illumina's E10 for the quarter that ended in Jun. 2026 was $-0.27. Illumina's Shiller PE Ratio of today is .

During the past 13 years, the highest Shiller PE Ratio of Illumina was 221.74. The lowest was 42.24. And the median was 117.34.


Illumina  (NAS:ILMN) E10 Explanation

If a company grows much fast than inflation, E10 may underestimate the company's earnings power. Shiller PE Ratio can seem to be too high even the actual P/E is low.

For the Shiller P/E, 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 P/E is also called PE10.

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

During the past 13 years, the highest Shiller P/E Ratio of Illumina was 221.74. The lowest was 42.24. And the median was 117.34.


Be Aware

Shiller PE Ratio works better for cyclical companies. It gives you a better idea on the company's real earnings power.


Illumina E10 Related Terms


Illumina E10 Historical Data

* Premium members only.

The historical data trend for Illumina's E10 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.

Illumina E10 Chart

Illumina Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 4.12 1.44 0.63 -0.44 -0.33

Illumina Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
E10 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 -0.40 -0.41 -0.29 -0.29 -0.27

ILMN vs MTD, LH, DGX: E10 Comparison

For the Diagnostics & Research subindustry, Illumina'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.


Illumina Shiller PE Ratio vs Medical Diagnostics & Research Industry

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

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


ILMN
64GF Score
Illumina Inc ILMN
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
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Illumina E10 Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. When we calculate the today's Shiller P/E ratio of a stock, we use today's price divided by E10.

What is E10? How do we calculate E10?

E10 is the average of the inflation adjusted earnings of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the E10 of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the earnings from 2001 through 2010.

We adjusted the earnings of 2001 earnings data with the total inflation from 2001 through 2010 to the equivalent earnings in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart earned $1 a share in 2001, then the 2001's equivalent earnings in 2010 is $1.4 a share. If Wal-Mart earns $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 earnings in 2010 is $1.35. So on and so forth, you get the equivalent earnings of past 10 years. Then you add them together and divided the sum by 10 to get 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.

For example, Illumina'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)
=1.3529/333.9520*333.9520
=1.353

Current CPI (Jun. 2026) = 333.9520.

Illumina Quarterly Data

per share eps CPI Adj_EPS
201609 0.870 241.428 1.203
201612 0.840 241.432 1.162
201703 2.490 243.801 3.410
201706 0.870 244.955 1.186
201709 1.101 246.819 1.490
201712 0.460 246.524 0.623
201803 1.410 249.554 1.887
201806 1.410 251.989 1.869
201809 1.336 252.439 1.767
201812 1.410 251.233 1.874
201903 1.564 254.202 2.054
201906 1.987 256.143 2.590
201909 1.581 256.759 2.056
201912 1.615 256.974 2.099
202003 1.169 258.115 1.512
202006 0.318 257.797 0.411
202009 1.210 260.280 1.552
202012 1.748 260.474 2.241
202103 1.000 264.877 1.261
202106 1.259 271.696 1.547
202109 2.072 274.310 2.522
202112 0.713 278.802 0.855
202203 0.541 287.504 0.628
202206 -3.408 296.311 -3.840
202209 -24.306 296.808 -27.347
202212 -0.886 296.797 -0.997
202303 0.019 301.836 0.021
202306 -1.481 305.109 -1.621
202309 -4.772 307.789 -5.178
202312 -1.107 306.746 -1.205
202403 -0.792 312.332 -0.847
202406 -12.503 314.175 -13.290
202409 4.406 315.301 4.667
202412 1.169 315.605 1.237
202503 0.824 319.799 0.860
202506 1.497 322.561 1.550
202509 0.974 324.800 1.001
202512 2.169 324.054 2.235
202603 0.870 330.213 0.880
202606 1.353 333.952 1.353

Add all the adjusted EPS together and divide 10 will get our e10.

Frequently Asked Questions Learn more about E10 →
What does a E10 of $-0.27 mean?
Illumina (ILMN) has a E10 of $-0.27 as of Jun. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Illumina and its competitors.
Is Illumina's E10 too high?
Illumina's current E10 is $-0.27. Overall, Illumina has a GF Score™ of 64/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Illumina's E10 compare to MTD and LH?
Illumina's E10 of $-0.27 can be compared against companies in the Medical Diagnostics & Research industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good E10 for a Medical Diagnostics & Research company?
A good E10 depends on the Medical Diagnostics & Research industry context. However, E10 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 E10 mean?
A high E10 can signal that a stock is expensive relative to its fundamentals. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Illumina and its competitors. Illumina's current E10 is $-0.27. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Illumina stock overvalued right now?
Based on GuruFocus' analysis, Illumina (ILMN) is currently considered Significantly Overvalued. The stock's GF Value™ is $132.96, compared to a current price of $244.45 — trading 83.9% above its estimated fair value. The current E10 is $-0.27. Illumina's overall GF Score™ is 64/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is E10 calculated?
E10 is calculated from a company's financial statements. For Illumina (ILMN), the current E10 is $-0.27 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 Illumina (ILMN) Overvalued in 2026?

Based on GuruFocus' analysis, Illumina stock appears to be overvalued. The current stock price of $244.45 is trading 83.9% above its estimated GF Value™ of $132.96. GuruFocus considers Illumina to be Significantly Overvalued.

Key valuation signals for ILMN:

  • E10: $-0.27
  • GF Value™: $132.96 vs. price of $244.45 (83.9% above fair value)
  • GF Score™: 64/100 with 7 warning signs

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


Illumina Business Description

Address 5200 Illumina Way, San Diego, CA, USA, 92122
Illumina provides tools and services to analyze genetic material with life science and clinical lab applications. The company generates over 90% of its revenue from sequencing instruments, consumables, and services. Illumina's high-throughput technology enables whole genome sequencing in humans and other large organisms. Its lower throughput tools enable applications that require smaller data outputs, such as viral and cancer tumor screening. Illumina also sells microarrays (9% of 2024 sales) that enable lower-cost, focused genetic screening with primarily consumer and agricultural applications.
64GF Score

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E10 is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$244.45
Price
$132.96
GF Value