Atalaya Mining Copper (LSE:ATYM) E10: £0.34 (As of Mar. 2026)

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LSE:ATYM Atalaya Mining Copper SA LSE:ATYM
84 GF Score
Price £7.95
GF Value £5.53
Valuation Significantly Overvalued
! 1 Warning Sign
View Full Analysis

What is Atalaya Mining Copper E10?

Atalaya Mining Copper LSE:ATYM -0.62% 84 E10 is £0.34 as of Mar. 2026. GuruFocus rates LSE:ATYM with a GF Score™ of 84/100 and a GF Value™ of £5.53 (Significantly Overvalued). The stock has 1 warning sign 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.

Atalaya Mining Copper's adjusted earnings per share data for the three months ended in Mar. 2026 was £0.159. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is £0.34 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Atalaya Mining Copper's average E10 Growth Rate was 21.40% per year. During the past 3 years, the average E10 Growth Rate was 38.70% 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 Atalaya Mining Copper was 58.70% per year. The lowest was 38.70% per year. And the median was 48.70% per year.

As of today (2026-07-14), Atalaya Mining Copper's current stock price is £7.95. Atalaya Mining Copper's E10 for the quarter that ended in Mar. 2026 was £0.34. Atalaya Mining Copper's Shiller PE Ratio of today is 23.38.

During the past 13 years, the highest Shiller PE Ratio of Atalaya Mining Copper was 138.33. The lowest was 10.79. And the median was 21.97.


Atalaya Mining Copper  (LSE:ATYM) 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.

Atalaya Mining Copper's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=7.95/0.34
=23.38

* 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 Atalaya Mining Copper was 138.33. The lowest was 10.79. And the median was 21.97.


Be Aware

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


Atalaya Mining Copper E10 Related Terms


Atalaya Mining Copper E10 Historical Data

* Premium members only.

The historical data trend for Atalaya Mining Copper'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.

Atalaya Mining Copper E10 Chart

Atalaya Mining Copper 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 0.06 0.12 0.20 0.24 0.32

Atalaya Mining Copper 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 0.28 0.31 0.32 0.32 0.34

LSE:ATYM vs SCCO, FCX: E10 Comparison

For the Copper subindustry, Atalaya Mining Copper'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.


Atalaya Mining Copper Shiller PE Ratio vs Metals & Mining Industry

For the Metals & Mining industry and Basic Materials sector, Atalaya Mining Copper's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Atalaya Mining Copper's Shiller PE Ratio falls into.


LSE:ATYM
84GF Score
Atalaya Mining Copper SA LSE:ATYM
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Atalaya Mining Copper 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, Atalaya Mining Copper'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)
=0.159/129.8600*129.8600
=0.159

Current CPI (Mar. 2026) = 129.8600.

Atalaya Mining Copper Quarterly Data

per share eps CPI Adj_EPS
201606 -0.022 100.333 -0.028
201609 -0.011 99.737 -0.014
201612 0.156 101.842 0.199
201703 0.042 100.896 0.054
201706 0.046 101.848 0.059
201709 0.021 101.524 0.027
201712 0.026 102.975 0.033
201803 0.057 102.122 0.072
201806 0.102 104.165 0.127
201809 0.020 103.818 0.025
201812 0.044 104.193 0.055
201903 0.087 103.488 0.109
201906 0.045 104.612 0.056
201909 0.044 103.905 0.055
201912 0.056 105.015 0.069
202003 0.021 103.469 0.026
202006 0.021 104.254 0.026
202009 0.080 103.521 0.100
202012 0.081 104.456 0.101
202103 0.206 104.857 0.255
202106 0.197 107.102 0.239
202109 0.229 107.669 0.276
202112 0.172 111.298 0.201
202203 0.110 115.153 0.124
202206 0.072 118.044 0.079
202209 -0.041 117.221 -0.045
202212 0.054 117.650 0.060
202303 0.070 118.948 0.076
202306 0.057 120.278 0.062
202309 0.069 121.343 0.074
202312 0.037 121.300 0.040
202403 0.012 122.762 0.013
202406 0.088 124.409 0.092
202409 0.014 123.121 0.015
202412 0.068 124.753 0.071
202503 0.174 125.531 0.180
202506 0.173 127.251 0.177
202509 0.064 126.840 0.066
202512 0.086 128.400 0.087
202603 0.159 129.860 0.159

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 £0.34 mean?
Atalaya Mining Copper (LSE:ATYM) has a E10 of £0.34 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Atalaya Mining Copper and its competitors.
Is Atalaya Mining Copper's E10 too high?
Atalaya Mining Copper's current E10 is £0.34. Overall, Atalaya Mining Copper has a GF Score™ of 84/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Atalaya Mining Copper's E10 compare to SCCO and FCX?
Atalaya Mining Copper's E10 of £0.34 can be compared against companies in the Metals & Mining 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 Metals & Mining company?
A good E10 depends on the Metals & Mining 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 Atalaya Mining Copper and its competitors. Atalaya Mining Copper's current E10 is £0.34. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Atalaya Mining Copper stock overvalued right now?
Based on GuruFocus' analysis, Atalaya Mining Copper (LSE:ATYM) is currently considered Significantly Overvalued. The stock's GF Value™ is £5.53, compared to a current price of £7.95 — trading 43.8% above its estimated fair value. The current E10 is £0.34. Atalaya Mining Copper's overall GF Score™ is 84/100 with 1 warning sign 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 Atalaya Mining Copper (LSE:ATYM), the current E10 is £0.34 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 Atalaya Mining Copper (LSE:ATYM) Overvalued in 2026?

Based on GuruFocus' analysis, Atalaya Mining Copper stock appears to be overvalued. The current stock price of £7.95 is trading 43.8% above its estimated GF Value™ of £5.53. GuruFocus considers Atalaya Mining Copper to be Significantly Overvalued.

Key valuation signals for LSE:ATYM:

  • E10: £0.34
  • GF Value™: £5.53 vs. price of £7.95 (43.8% above fair value)
  • GF Score™: 84/100 with 1 warning sign

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


Atalaya Mining Copper Business Description

Other Exchanges ATYMl:UKE5S1:Germany
Address Paseo de las Delicias, 1, 3, Sevilla, ESP, 41001
Atalaya Mining Copper SA is a European copper producer that owns and operates the Proyecto Riotinto complex in southwest Spain. Its operations include the Cerro Colorado open pit mine and a modern 15 Mtpa processing plant, regional projects around Riotinto, such as Proyecto Masa Valverde and Proyecto Riotinto East. The company's portfolio includes assets at the production (Riotinto), development (Touro, Masa Valverde) and exploration (Ossa Morena) stages.
84GF Score

Get the complete analysis for LSE:ATYM

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

£7.95
Price
£5.53
GF Value