POSC (Positron) E10: $-18.89 (As of Jun. 2026)

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Director of Data and Quant Analytics at GuruFocus
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POSC Positron Corp POSC
22 GF Score
Price $1.79
GF Value $0.22
Valuation Significantly Overvalued
! 6 Warning Signs
View Full Analysis

What is Positron E10?

Positron POSC 22 E10 is $-18.89 as of Jun. 2026. GuruFocus rates POSC with a GF Score™ of 22/100 and a GF Value™ of $0.22 (Significantly Overvalued). 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.

Positron's adjusted earnings per share data for the three months ended in Jun. 2026 was $-0.030. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is $-18.89 for the trailing ten years ended in Jun. 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 Positron was 51.00% per year. The lowest was -10.50% per year. And the median was 27.70% per year.

As of today (2026-09-15), Positron's current stock price is $1.79. Positron's E10 for the quarter that ended in Jun. 2026 was $-18.89. Positron's Shiller PE Ratio of today is .


Positron  (OTCPK:POSC) 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.


Positron E10 Related Terms


Positron E10 Historical Data

* Premium members only.

The historical data trend for Positron'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.

Positron E10 Chart

Positron Annual Data
Trend Dec07 Dec08 Dec09 Dec10 Dec11 Dec12 Dec13 Dec14 Dec24 Dec25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only -20.71 0.00 -22.06 0.00 0.00

Positron Quarterly Data
Jun12 Sep12 Dec12 Mar13 Jun13 Sep13 Dec13 Mar14 Jun14 Sep14 Dec14 Mar15 Jun15 Sep15 Dec24 Mar25 Jun25 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 -24.63 -21.22 0.00 -19.63 -18.89

POSC vs XTNT, COCH, SRTS: E10 Comparison

For the Medical Devices subindustry, Positron'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.


Positron Shiller PE Ratio vs Medical Devices & Instruments Industry

For the Medical Devices & Instruments industry and Healthcare sector, Positron's Shiller PE Ratio distribution charts can be found below:

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


POSC
22GF Score
Positron Corp POSC
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Positron 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, Positron'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)
=-0.03/333.9520*333.9520
=-0.030

Current CPI (Jun. 2026) = 333.9520.

Positron Quarterly Data

per share eps CPI Adj_EPS
200706 -4.000 208.352 -6.411
200709 -8.000 208.490 -12.814
200712 -16.000 210.036 -25.440
200803 -4.000 213.528 -6.256
200806 -8.000 218.815 -12.209
200809 0.000 218.783 0.000
200812 -16.000 210.228 -25.416
200903 -4.000 212.709 -6.280
200906 -2.000 215.693 -3.097
200909 -2.000 215.969 -3.093
200912 -2.951 215.949 -4.564
201003 -4.000 217.631 -6.138
201006 -4.000 217.965 -6.129
201009 0.000 218.439 0.000
201012 -0.797 219.179 -1.214
201103 -0.400 223.467 -0.598
201106 0.000 225.722 0.000
201109 -0.800 226.889 -1.177
201112 0.000 225.672 0.000
201203 0.000 229.392 0.000
201206 0.000 229.478 0.000
201209 0.000 231.407 0.000
201212 -4.000 229.601 -5.818
201303 0.000 232.773 0.000
201306 0.000 233.504 0.000
201309 0.000 234.149 0.000
201312 0.000 233.049 0.000
201403 -0.240 236.293 -0.339
201406 -0.020 238.343 -0.028
201409 -0.130 238.031 -0.182
201412 -0.006 234.812 -0.009
201503 -0.040 236.119 -0.057
201506 -0.030 238.638 -0.042
201509 -0.020 237.945 -0.028
202412 0.000 315.605 0.000
202503 -0.050 319.799 -0.052
202506 -0.040 322.561 -0.041
202512 0.000 324.054 0.000
202603 -0.040 330.213 -0.040
202606 -0.030 333.952 -0.030

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 $-18.89 mean?
Positron (POSC) has a E10 of $-18.89 as of Jun. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Positron and its competitors.
Is Positron's E10 too high?
Positron's current E10 is $-18.89. Overall, Positron has a GF Score™ of 22/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Positron's E10 compare to XTNT and COCH?
Positron's E10 of $-18.89 can be compared against companies in the Medical Devices & Instruments 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 Medical Devices & Instruments company?
A good E10 depends on the Medical Devices & Instruments 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 Positron and its competitors. Positron's current E10 is $-18.89. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Positron stock overvalued right now?
Based on GuruFocus' analysis, Positron (POSC) is currently considered Significantly Overvalued. The stock's GF Value™ is $0.22, compared to a current price of $1.79 — trading 713.6% above its estimated fair value. The current E10 is $-18.89. Positron's overall GF Score™ is 22/100 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 Positron (POSC), the current E10 is $-18.89 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 Positron (POSC) Overvalued in 2026?

Based on GuruFocus' analysis, Positron stock appears to be overvalued. The current stock price of $1.79 is trading 713.6% above its estimated GF Value™ of $0.22. GuruFocus considers Positron to be Significantly Overvalued.

Key valuation signals for POSC:

  • E10: $-18.89
  • GF Value™: $0.22 vs. price of $1.79 (713.6% above fair value)
  • GF Score™: 22/100 with 6 warning signs

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


Positron Business Description

Address 3784 Commerce Court, Suite 100, North Tonawanda, NY, USA, 14120
Positron Corp is a medical technology company engaged in the co-development, manufacture, and sale of PET and PET-CT imaging systems, delivering high-performance, cost-effective molecular imaging solutions that empower healthcare providers to improve the diagnosis and treatment of cardiovascular disease and other critical conditions. By combining proprietary PET and PET-CT systems with comprehensive clinical and technical support, flexible financing, & a focus on operational efficiency, Positron makes advance diagnostic imaging more accessible & sustainable for hospitals, outpatient centers, & physician practices. The company focused on advancing positron emission tomography imaging through the development, manufacture, & commercialization of PET & PET-computed tomography imaging systems.
22GF Score

Get the complete analysis for POSC

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

$1.79
Price
$0.22
GF Value