Diamondback Energy (STU:7DB) E10: €5.46 (As of Mar. 2026)


STU:7DB Diamondback Energy Inc STU:7DB
62 GF Score
Price €157.58
GF Value €163.69
Valuation Fairly Valued
! 6 Warning Signs
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What is Diamondback Energy E10?

Diamondback Energy STU:7DB -1.62% 62 E10 is €5.46 as of Mar. 2026. GuruFocus rates STU:7DB with a GF Score™ of 62/100 and a GF Value™ of €163.69 (Fairly Valued). The stock has 6 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.

Diamondback Energy's adjusted earnings per share data for the three months ended in Mar. 2026 was €0.069. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is €5.46 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Diamondback Energy's average E10 Growth Rate was 31.40% per year. During the past 3 years, the average E10 Growth Rate was 61.30% 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 Diamondback Energy was 61.30% per year. The lowest was 61.30% per year. And the median was 61.30% per year.

As of today (2026-06-27), Diamondback Energy's current stock price is €157.58. Diamondback Energy's E10 for the quarter that ended in Mar. 2026 was €5.46. Diamondback Energy's Shiller PE Ratio of today is 28.86.

During the past 13 years, the highest Shiller PE Ratio of Diamondback Energy was 3375.50. The lowest was 22.18. And the median was 50.73.


Diamondback Energy  (STU:7DB) 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.

Diamondback Energy's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=157.58/5.46
=28.86

* 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.

During the past 13 years, the highest Shiller P/E Ratio of Diamondback Energy was 3375.50. The lowest was 22.18. And the median was 50.73.


Be Aware

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


Diamondback Energy E10 Related Terms


Diamondback Energy E10 Historical Data

* Premium members only.

The historical data trend for Diamondback 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.

Diamondback Energy E10 Chart

Diamondback 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 -0.93 1.33 2.78 3.97 5.13

Diamondback Energy Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
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 4.30 4.73 5.34 5.13 5.46

STU:7DB vs OXY, DVN, EOG: E10 Comparison

For the Oil & Gas E&P subindustry, Diamondback 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.


Diamondback Energy Shiller PE Ratio vs Oil & Gas Industry

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

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


STU:7DB
62GF Score
Diamondback Energy Inc STU:7DB
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Diamondback 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, Diamondback Energy's adjusted earnings per share data for the three months ended in Mar. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=0.069/330.2130*330.2130
=0.069

Current CPI (Mar. 2026) = 330.2130.

Diamondback Energy Quarterly Data

per share eps CPI Adj_EPS
201606 -1.931 241.018 -2.646
201609 -0.027 241.428 -0.037
201612 0.303 241.432 0.414
201703 1.365 243.801 1.849
201706 1.433 244.955 1.932
201709 0.621 246.819 0.831
201712 0.980 246.524 1.313
201803 1.338 249.554 1.770
201806 1.900 251.989 2.490
201809 1.363 252.439 1.783
201812 2.197 251.233 2.888
201903 0.053 254.202 0.069
201906 1.867 256.143 2.407
201909 2.052 256.759 2.639
201912 -2.736 256.974 -3.516
202003 -1.557 258.115 -1.992
202006 -13.462 257.797 -17.244
202009 -5.985 260.280 -7.593
202012 -3.847 260.474 -4.877
202103 1.117 264.877 1.393
202106 1.411 271.696 1.715
202109 3.018 274.310 3.633
202112 4.903 278.802 5.807
202203 3.950 287.504 4.537
202206 7.502 296.311 8.360
202209 6.787 296.808 7.551
202212 5.305 296.797 5.902
202303 3.624 301.836 3.965
202306 2.815 305.109 3.047
202309 4.751 307.789 5.097
202312 4.897 306.746 5.272
202403 3.938 312.332 4.163
202406 4.329 314.175 4.550
202409 2.874 315.301 3.010
202412 3.505 315.605 3.667
202503 4.468 319.799 4.613
202506 2.063 322.561 2.112
202509 2.991 324.800 3.041
202512 -4.364 324.054 -4.447
202603 0.069 330.213 0.069

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 €5.46 mean?
Diamondback Energy (STU:7DB) has a E10 of €5.46 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Diamondback Energy and its competitors.
Is Diamondback Energy's E10 too high?
Diamondback Energy's current E10 is €5.46. Overall, Diamondback Energy has a GF Score™ of 62/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Diamondback Energy's E10 compare to OXY and DVN?
Diamondback Energy's E10 of €5.46 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 Diamondback Energy and its competitors. Diamondback Energy's current E10 is €5.46. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Diamondback Energy stock overvalued right now?
Based on GuruFocus' analysis, Diamondback Energy (STU:7DB) is currently considered Fairly Valued. The stock's GF Value™ is €163.69, compared to a current price of €157.58 — trading 3.7% below its estimated fair value. The current E10 is €5.46. Diamondback Energy's overall GF Score™ is 62/100 with 6 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 Diamondback Energy (STU:7DB), the current E10 is €5.46 as of Mar. 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 Diamondback Energy (STU:7DB) Overvalued in 2026?

Based on GuruFocus' analysis, Diamondback Energy stock appears to be undervalued. The current stock price of €157.58 is trading 3.7% below its estimated GF Value™ of €163.69. GuruFocus considers Diamondback Energy to be Fairly Valued.

Key valuation signals for STU:7DB:

  • E10: €5.46
  • GF Value™: €163.69 vs. price of €157.58 (3.7% below fair value)
  • GF Score™: 62/100 with 6 warning signs

No single metric tells the full story. See the STU:7DB stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Diamondback Energy Business Description

Industry EnergyOil & Gas
Address 500 West Texas Avenue, Suite 100, Midland, TX, USA, 79701
Diamondback is a crude oil and natural gas exploration and production firm whose operations represent a pure-play in the US Permian Basin. The company went public in 2012 and has established itself as a top-tier independent producer through disciplined acquisition and operational excellence. The company's most transformational transaction occurred in September 2024 with the completion of its $26 billion merger with Endeavor Energy Resources, which added around 470,000 net acres and doubled Diamondback's total acreage position. Diamondback boasts an enviable position in the Midland sub-basin, with some of the lowest unit costs among its Permian peers.
62GF Score

Get the complete analysis for STU:7DB

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

€157.58
Price
€163.69
GF Value