Kosmos Energy (CHIX:KOSL) E10: £-0.26 (As of Jun. 2026)

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CHIX:KOSL Kosmos Energy Ltd CHIX:KOSL
65 GF Score
Price £1.86
GF Value £2.16
Valuation Modestly Undervalued
! 8 Warning Signs
View Full Analysis

What is Kosmos Energy E10?

Kosmos Energy CHIX:KOSL 65 E10 is £-0.26 as of Jun. 2026. GuruFocus rates CHIX:KOSL with a GF Score™ of 65/100 and a GF Value™ of £2.16 (Modestly Undervalued). The stock has 8 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.

Kosmos Energy's adjusted earnings per share data for the three months ended in Jun. 2026 was £0.233. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is £-0.26 for the trailing ten years ended in Jun. 2026.

During the past 3 years, the average E10 Growth Rate was -14.50% per year. During the past 5 years, the average E10 Growth Rate was -2.50% per year. 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 Kosmos Energy was 10.60% per year. The lowest was -14.50% per year. And the median was 3.50% per year.

As of today (2026-08-12), Kosmos Energy's current stock price is £1.86. Kosmos Energy's E10 for the quarter that ended in Jun. 2026 was £-0.26. Kosmos Energy's Shiller PE Ratio of today is .


Kosmos Energy  (CHIX:KOSl) 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.


Be Aware

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


Kosmos Energy E10 Related Terms


Kosmos Energy E10 Historical Data

* Premium members only.

The historical data trend for Kosmos Energy'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.

Kosmos Energy E10 Chart

Kosmos Energy 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 -0.22 -0.22 -0.16 -0.20 -0.58

Kosmos Energy 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 -0.21 -0.25 -0.58 -0.33 -0.26

CHIX:KOSL vs KRP, DMLP, TBN: E10 Comparison

For the Oil & Gas E&P subindustry, Kosmos Energy'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.


Kosmos Energy Shiller PE Ratio vs Oil & Gas Industry

For the Oil & Gas industry and Energy sector, Kosmos Energy's Shiller PE Ratio distribution charts can be found below:

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


CHIX:KOSL
65GF Score
Kosmos Energy Ltd CHIX:KOSL
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Kosmos Energy 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, Kosmos Energy'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)
=0.233/333.9520*333.9520
=0.233

Current CPI (Jun. 2026) = 333.9520.

Kosmos Energy Quarterly Data

per share eps CPI Adj_EPS
201609 -0.114 241.428 -0.158
201612 -0.120 241.432 -0.166
201703 -0.057 243.801 -0.078
201706 -0.016 244.955 -0.022
201709 -0.120 246.819 -0.162
201712 -0.231 246.524 -0.313
201803 -0.093 249.554 -0.124
201806 -0.196 251.989 -0.260
201809 -0.237 252.439 -0.314
201812 0.340 251.233 0.452
201903 -0.099 254.202 -0.130
201906 0.032 256.143 0.042
201909 0.032 256.759 0.042
201912 -0.069 256.974 -0.090
202003 -0.364 258.115 -0.471
202006 -0.392 257.797 -0.508
202009 -0.069 260.280 -0.089
202012 0.015 260.474 0.019
202103 -0.159 264.877 -0.200
202106 -0.100 271.696 -0.123
202109 -0.051 274.310 -0.062
202112 0.165 278.802 0.198
202203 0.002 287.504 0.002
202206 0.203 296.311 0.229
202209 0.415 296.808 0.467
202212 -0.205 296.797 -0.231
202303 0.140 301.836 0.155
202306 0.040 305.109 0.044
202309 0.145 307.789 0.157
202312 0.032 306.746 0.035
202403 0.150 312.332 0.160
202406 0.094 314.175 0.100
202409 0.068 315.301 0.072
202412 -0.008 315.605 -0.008
202503 -0.178 319.799 -0.186
202506 -0.133 322.561 -0.138
202509 -0.192 324.800 -0.197
202512 -0.590 324.054 -0.608
202603 -0.338 330.213 -0.342
202606 0.233 333.952 0.233

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 £-0.26 mean?
Kosmos Energy (CHIX:KOSL) has a E10 of £-0.26 as of Jun. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Kosmos Energy and its competitors.
Is Kosmos Energy's E10 too high?
Kosmos Energy's current E10 is £-0.26. Overall, Kosmos Energy has a GF Score™ of 65/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Kosmos Energy's E10 compare to KRP and DMLP?
Kosmos Energy's E10 of £-0.26 can be compared against companies in the Oil & Gas 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 an Oil & Gas company?
A good E10 depends on the Oil & Gas 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 Kosmos Energy and its competitors. Kosmos Energy's current E10 is £-0.26. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Kosmos Energy stock overvalued right now?
Based on GuruFocus' analysis, Kosmos Energy (CHIX:KOSL) is currently considered Modestly Undervalued. The stock's GF Value™ is £2.16, compared to a current price of £1.86 — trading 13.9% below its estimated fair value. The current E10 is £-0.26. Kosmos Energy's overall GF Score™ is 65/100 with 8 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 Kosmos Energy (CHIX:KOSL), the current E10 is £-0.26 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 Kosmos Energy (CHIX:KOSL) Overvalued in 2026?

Based on GuruFocus' analysis, Kosmos Energy stock appears to be undervalued. The current stock price of £1.86 is trading 13.9% below its estimated GF Value™ of £2.16. GuruFocus considers Kosmos Energy to be Modestly Undervalued.

Key valuation signals for CHIX:KOSL:

  • E10: £-0.26
  • GF Value™: £2.16 vs. price of £1.86 (13.9% below fair value)
  • GF Score™: 65/100 with 8 warning signs

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


Kosmos Energy Business Description

Industry EnergyOil & Gas
Address 8176 Park Lane, Suite 500, Dallas, TX, USA, 75231
Kosmos Energy Ltd is a deepwater exploration and production company focused on meeting the world's growing demand for energy. It has diversified oil and gas production from assets offshore Ghana, Equatorial Guinea, Mauritania, Senegal and the Gulf of America. The Company had operations in four geographic reporting segments: Ghana, Equatorial Guinea, Mauritania/Senegal and the Gulf of America. The majority of revenue is derived from the Ghana segment.
65GF Score

Get the complete analysis for CHIX:KOSL

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

£1.86
Price
£2.16
GF Value