Inogen (STU:6IO) E10: € (As of Jun. 2026)

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STU:6IO Inogen Inc STU:6IO
59 GF Score
Price €4.42
GF Value €5.86
Valuation Modestly Undervalued
! 3 Warning Signs
View Full Analysis

What is Inogen E10?

Inogen STU:6IO -0.45% 59 E10 is € as of Jun. 2026. GuruFocus rates STU:6IO with a GF Score™ of 59/100 and a GF Value™ of €5.86 (Modestly Undervalued). The stock has 3 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.

Inogen's adjusted earnings per share data for the three months ended in Jun. 2026 was €-0.122. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 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.

As of today (2026-09-22), Inogen's current stock price is €4.42. Inogen's E10 for the quarter that ended in Jun. 2026 was . Inogen's Shiller PE Ratio of today is .

During the past 13 years, the highest Shiller PE Ratio of Inogen was 86.67. The lowest was 28.94. And the median was 48.54.


Inogen  (STU:6IO) 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 Inogen was 86.67. The lowest was 28.94. And the median was 48.54.


Be Aware

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


Inogen E10 Related Terms


Inogen E10 Historical Data

* Premium members only.

The historical data trend for Inogen'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.

Inogen E10 Chart

Inogen Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
E10
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Inogen 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 - - - - -

STU:6IO vs OWLT, APYX, MXCT: E10 Comparison

For the Medical Devices subindustry, Inogen'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.


Inogen Shiller PE Ratio vs Medical Devices & Instruments Industry

For the Medical Devices & Instruments industry and Healthcare sector, Inogen's Shiller PE Ratio distribution charts can be found below:

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


STU:6IO
59GF Score
Inogen Inc STU:6IO
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Inogen 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, Inogen'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)
=-0.1224/333.9520*333.9520
=-0.122

Current CPI (Jun. 2026) = 333.9520.

Inogen Quarterly Data

per share eps CPI Adj_EPS
201609 0.224 241.428 0.310
201612 0.228 241.432 0.316
201703 0.253 243.801 0.347
201706 0.345 244.955 0.471
201709 0.281 246.819 0.380
201712 -0.026 246.524 -0.035
201803 0.393 249.554 0.525
201806 0.546 251.989 0.723
201809 0.624 252.439 0.825
201812 0.390 251.233 0.518
201903 0.207 254.202 0.272
201906 0.404 256.143 0.527
201909 0.278 256.759 0.362
201912 -0.057 256.974 -0.074
202003 -0.066 258.115 -0.085
202006 0.105 257.797 0.137
202009 -0.066 260.280 -0.085
202012 -0.195 260.474 -0.250
202103 -0.027 264.877 -0.035
202106 0.185 271.696 0.228
202109 0.452 274.310 0.550
202112 -0.881 278.802 -1.056
202203 -0.557 287.504 -0.647
202206 -0.141 296.311 -0.159
202209 -0.412 296.808 -0.464
202212 -2.422 296.797 -2.725
202303 -0.824 301.836 -0.912
202306 -0.390 305.109 -0.427
202309 -1.809 307.789 -1.963
202312 -1.059 306.746 -1.153
202403 -0.574 312.332 -0.614
202406 -0.220 314.175 -0.234
202409 -0.229 315.301 -0.242
202412 -0.384 315.605 -0.406
202503 -0.233 319.799 -0.243
202506 -0.136 322.561 -0.141
202509 -0.167 324.800 -0.172
202512 -0.225 324.054 -0.232
202603 -0.260 330.213 -0.263
202606 -0.122 333.952 -0.122

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 € mean?
Inogen (STU:6IO) has a E10 of € as of Jun. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Inogen and its competitors.
Is Inogen's E10 too high?
Inogen's current E10 is €. Overall, Inogen has a GF Score™ of 59/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Inogen's E10 compare to OWLT and APYX?
Inogen's E10 of € can be compared against companies in the Medical Devices & Instruments 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 Devices & Instruments company?
A good E10 depends on the Medical Devices & Instruments 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 Inogen and its competitors. Inogen's current E10 is €. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Inogen stock overvalued right now?
Based on GuruFocus' analysis, Inogen (STU:6IO) is currently considered Modestly Undervalued. The stock's GF Value™ is €5.86, compared to a current price of €4.42 — trading 24.6% below its estimated fair value. The current E10 is €. Inogen's overall GF Score™ is 59/100 with 3 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 Inogen (STU:6IO), the current E10 is € 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 Inogen (STU:6IO) Overvalued in 2026?

Based on GuruFocus' analysis, Inogen stock appears to be undervalued. The current stock price of €4.42 is trading 24.6% below its estimated GF Value™ of €5.86. GuruFocus considers Inogen to be Modestly Undervalued.

Key valuation signals for STU:6IO:

  • E10:
  • GF Value™: €5.86 vs. price of €4.42 (24.6% below fair value)
  • GF Score™: 59/100 with 3 warning signs

No single metric tells the full story. See the STU:6IO stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Inogen Business Description

Other Exchanges INGN:USA
Address 500 Cummings Center, Suite 2800, Beverly, MA, USA, 01915
Inogen Inc is a medical technology business that focuses on respiratory health. It develops, manufactures, and markets respiratory health products, including portable oxygen concentrators, or POCs, used to deliver supplemental long-term oxygen therapy to patients suffering from chronic respiratory conditions and the Simeox product for airway clearance treatment. In addition, it has started distributing the Inogen Voxi 5 stationary oxygen concentrator as well as the Aurora continuous positive airway pressure, or CPAP, masks in the United States. The company derives revenues from customers through the development, manufacturing, marketing, sales, and rental of respiratory products.
59GF Score

Get the complete analysis for STU:6IO

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

€4.42
Price
€5.86
GF Value