RGLSF (Regulus Resources) E10: $-0.04 (As of Mar. 2026)


RGLSF Regulus Resources Inc RGLSF
37 GF Score
Price $2.66
! 1 Warning Sign
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What is Regulus Resources E10?

Regulus Resources RGLSF -3.38% 37 E10 is $-0.04 as of Mar. 2026. GuruFocus rates RGLSF with a GF Score™ of 37/100. 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.

Regulus Resources's adjusted earnings per share data for the three months ended in Mar. 2026 was $-0.007. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is $-0.04 for the trailing ten years ended in Mar. 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 Regulus Resources was 50.50% per year. The lowest was 10.40% per year. And the median was 34.90% per year.

As of today (2026-06-24), Regulus Resources's current stock price is $2.657. Regulus Resources's E10 for the quarter that ended in Mar. 2026 was $-0.04. Regulus Resources's Shiller PE Ratio of today is .


Regulus Resources  (OTCPK:RGLSF) 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.


Regulus Resources E10 Related Terms


Regulus Resources E10 Historical Data

* Premium members only.

The historical data trend for Regulus Resources'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.

Regulus Resources E10 Chart

Regulus Resources Annual Data
Trend Sep16 Sep17 Sep18 Sep19 Sep20 Sep21 Sep22 Sep23 Sep24 Sep25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only -0.28 -0.10 0.00 0.00 0.00

Regulus Resources 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 0.00 -0.04 0.00 -0.04 -0.04

Regulus Resources E10 Competitor Comparison

For the Other Industrial Metals & Mining subindustry, Regulus Resources'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.


Regulus Resources Shiller PE Ratio vs Metals & Mining Industry

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

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


RGLSF
37GF Score
Regulus Resources Inc RGLSF
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
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Regulus Resources 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, Regulus Resources'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)
=-0.007/132.2623*132.2623
=-0.007

Current CPI (Mar. 2026) = 132.2623.

Regulus Resources Quarterly Data

per share eps CPI Adj_EPS
201606 -0.008 102.002 -0.010
201609 -0.038 101.765 -0.049
201612 -0.015 101.449 -0.020
201703 -0.007 102.634 -0.009
201706 -0.015 103.029 -0.019
201709 0.000 103.345 0.000
201712 -0.008 103.345 -0.010
201803 -0.008 105.004 -0.010
201806 -0.015 105.557 -0.019
201809 -0.015 105.636 -0.019
201812 0.127 105.399 0.159
201903 -0.022 106.979 -0.027
201906 -0.023 107.690 -0.028
201909 -0.030 107.611 -0.037
201912 -0.010 107.769 -0.012
202003 -0.014 107.927 -0.017
202006 -0.015 108.401 -0.018
202009 0.008 108.164 0.010
202012 -0.016 108.559 -0.019
202103 -0.016 110.298 -0.019
202106 -0.008 111.720 -0.009
202109 -0.008 112.905 -0.009
202112 -0.003 113.774 -0.003
202203 -0.008 117.646 -0.009
202206 -0.008 120.806 -0.009
202209 -0.007 120.648 -0.008
202212 -0.007 120.964 -0.008
202303 -0.007 122.702 -0.008
202306 -0.008 124.203 -0.009
202309 0.000 125.230 0.000
202312 -0.007 125.072 -0.007
202403 -0.007 126.258 -0.007
202406 -0.007 127.522 -0.007
202409 0.000 127.285 0.000
202412 -0.007 127.364 -0.007
202503 0.000 129.181 0.000
202506 -0.015 129.892 -0.015
202509 0.000 130.287 0.000
202512 -0.007 130.366 -0.007
202603 -0.007 132.262 -0.007

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 $-0.04 mean?
Regulus Resources (RGLSF) has a E10 of $-0.04 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Regulus Resources and its competitors.
Is Regulus Resources' E10 too high?
Regulus Resources' current E10 is $-0.04. Overall, Regulus Resources has a GF Score™ of 37/100, reflecting its overall financial health beyond just this single metric.
How does Regulus Resources' E10 compare to competitors?
Regulus Resources' E10 of $-0.04 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 Regulus Resources and its competitors. Regulus Resources's current E10 is $-0.04. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Regulus Resources stock overvalued right now?
Regulus Resources (RGLSF) has a current E10 of $-0.04. The current E10 is $-0.04. Regulus Resources' overall GF Score™ is 37/100 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 Regulus Resources (RGLSF), the current E10 is $-0.04 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.

Regulus Resources Business Description

Address 200 Burrard Street, Suite 1570, Vancouver, BC, CAN, V6C 3L6
Regulus Resources Inc is a Canadian mineral exploration company. The Company owns interests in multiple mineral titles and claims in Peru. Its principal project is the AntaKori copper-gold-silver project in northern Peru. The company operates under one segment, that being the exploration and development of exploration and evaluation assets. Geographically, it has a presence in Canada and Peru.
37GF Score

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

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