Inter-Rock Minerals (TSXV:IRO) E10: C$0.05 (As of Mar. 2026)


TSXV:IRO Inter-Rock Minerals Inc TSXV:IRO
67 GF Score
Price C$1.04
GF Value C$0.85
Valuation Modestly Overvalued
! 5 Warning Signs
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What is Inter-Rock Minerals E10?

Inter-Rock Minerals TSXV:IRO 67 E10 is C$0.05 as of Mar. 2026. GuruFocus rates TSXV:IRO with a GF Score™ of 67/100 and a GF Value™ of C$0.85 (Modestly Overvalued). The stock has 5 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.

Inter-Rock Minerals's adjusted earnings per share data for the three months ended in Mar. 2026 was C$0.014. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is C$0.05 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Inter-Rock Minerals's average E10 Growth Rate was 25.00% per year. During the past 3 years, the average E10 Growth Rate was 35.70% 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 Inter-Rock Minerals was 44.20% per year. The lowest was 26.00% per year. And the median was 30.85% per year.

As of today (2026-07-05), Inter-Rock Minerals's current stock price is C$1.04. Inter-Rock Minerals's E10 for the quarter that ended in Mar. 2026 was C$0.05. Inter-Rock Minerals's Shiller PE Ratio of today is 20.80.

During the past 13 years, the highest Shiller PE Ratio of Inter-Rock Minerals was 51.00. The lowest was 15.50. And the median was 25.50.


Inter-Rock Minerals  (TSXV:IRO) 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.

Inter-Rock Minerals's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=1.04/0.05
=20.80

* 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 Inter-Rock Minerals was 51.00. The lowest was 15.50. And the median was 25.50.


Be Aware

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


Inter-Rock Minerals E10 Related Terms


Inter-Rock Minerals E10 Historical Data

* Premium members only.

The historical data trend for Inter-Rock Minerals'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.

Inter-Rock Minerals E10 Chart

Inter-Rock Minerals 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 0.02 0.02 0.03 0.00 0.05

Inter-Rock Minerals 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 0.04 0.04 0.05 0.05 0.05

TSXV:IRO vs KHC, GIS: E10 Comparison

For the Packaged Foods subindustry, Inter-Rock Minerals'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.


Inter-Rock Minerals Shiller PE Ratio vs Consumer Packaged Goods Industry

For the Consumer Packaged Goods industry and Consumer Defensive sector, Inter-Rock Minerals's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Inter-Rock Minerals's Shiller PE Ratio falls into.


TSXV:IRO
67GF Score
Inter-Rock Minerals Inc TSXV:IRO
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Inter-Rock Minerals 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, Inter-Rock Minerals'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)
=0.014/132.2600*132.2600
=0.014

Current CPI (Mar. 2026) = 132.2600.

Inter-Rock Minerals Quarterly Data

per share eps CPI Adj_EPS
201606 0.001 102.002 0.001
201609 0.013 101.765 0.017
201612 0.011 101.449 0.014
201703 0.013 102.634 0.017
201706 0.027 103.029 0.035
201709 0.025 103.345 0.032
201712 -0.013 103.345 -0.017
201803 0.013 105.004 0.016
201806 0.013 105.557 0.016
201809 0.013 105.636 0.016
201812 -0.013 105.399 -0.016
201903 -0.013 106.979 -0.016
201906 0.013 107.690 0.016
201909 0.013 107.611 0.016
201912 0.026 107.769 0.032
202003 0.028 107.927 0.034
202006 -0.004 108.401 -0.005
202009 0.026 108.164 0.032
202012 0.013 108.559 0.016
202103 0.013 110.298 0.016
202106 0.024 111.720 0.028
202109 0.013 112.905 0.015
202112 -0.013 113.774 -0.015
202203 0.025 117.646 0.028
202206 0.013 120.806 0.014
202209 0.040 120.648 0.044
202212 -0.122 120.964 -0.133
202303 0.027 122.702 0.029
202306 0.013 124.203 0.014
202309 0.014 125.230 0.015
202312 0.027 125.072 0.029
202403 0.014 126.258 0.015
202406 0.027 127.522 0.028
202409 0.014 127.285 0.015
202412 0.000 127.364 0.000
202503 0.014 129.181 0.014
202506 0.041 129.892 0.042
202509 0.028 130.290 0.028
202512 0.028 130.370 0.028
202603 0.014 132.260 0.014

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 C$0.05 mean?
Inter-Rock Minerals (TSXV:IRO) has a E10 of C$0.05 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Inter-Rock Minerals and its competitors.
Is Inter-Rock Minerals' E10 too high?
Inter-Rock Minerals' current E10 is C$0.05. Overall, Inter-Rock Minerals has a GF Score™ of 67/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Inter-Rock Minerals' E10 compare to KHC and GIS?
Inter-Rock Minerals' E10 of C$0.05 can be compared against companies in the Consumer Packaged Goods 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 Consumer Packaged Goods company?
A good E10 depends on the Consumer Packaged Goods 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 Inter-Rock Minerals and its competitors. Inter-Rock Minerals's current E10 is C$0.05. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Inter-Rock Minerals stock overvalued right now?
Based on GuruFocus' analysis, Inter-Rock Minerals (TSXV:IRO) is currently considered Modestly Overvalued. The stock's GF Value™ is C$0.85, compared to a current price of C$1.04 — trading 22.4% above its estimated fair value. The current E10 is C$0.05. Inter-Rock Minerals' overall GF Score™ is 67/100 with 5 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 Inter-Rock Minerals (TSXV:IRO), the current E10 is C$0.05 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 Inter-Rock Minerals (TSXV:IRO) Overvalued in 2026?

Based on GuruFocus' analysis, Inter-Rock Minerals stock appears to be overvalued. The current stock price of C$1.04 is trading 22.4% above its estimated GF Value™ of C$0.85. GuruFocus considers Inter-Rock Minerals to be Modestly Overvalued.

Key valuation signals for TSXV:IRO:

  • E10: C$0.05
  • GF Value™: C$0.85 vs. price of C$1.04 (22.4% above fair value)
  • GF Score™: 67/100 with 5 warning signs

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


Inter-Rock Minerals Business Description

Other Exchanges IRCKF:USA
Address 67 Yonge Street, Suite 600, Toronto, ON, CAN, M5E 1J8
Inter-Rock Minerals Inc produces and markets dolomite for the animal feed, glass, roofing, and agricultural lime industries in the United States. It also markets and distributes specialty ingredients to the dairy feed industry. The company has two Business segments: Papillon Agricultural Company Inc. (Papillon) and MIN-AD, Inc. (MIN-AD). Papillon is a U.S.-based marketer and distributor of toll-manufactured premium dairy feed nutritional supplements, including MIN-AD's products. MIN-AD is engaged in the production and marketing of high-purity dolomite and clay, mainly to the animal feed industry in the United States.
67GF Score

Get the complete analysis for TSXV:IRO

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

C$1.04
Price
C$0.85
GF Value