POSC (Positron) Shiller PE Ratio: (As of Sep. 01, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

POSC Positron Corp POSC
30 GF Score
Price $1.64
GF Value $0.12
Valuation Significantly Overvalued
! 8 Warning Signs
View Full Analysis

What is Positron Shiller PE Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Positron  (OTCPK:POSC) Shiller PE Ratio Explanation

Compared with the regular PE Ratio, which works poorly for cyclical businesses, the Shiller PE Ratio smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Shiller PE Ratio should give similar results to regular PE Ratio.

Compared with the PS Ratio, the Shiller PE Ratio makes the comparison between different industries more meaningful.


Be Aware

Shiller PE Ratio assumes that over the long term, businesses and profitability revert to their means. If a company's business model does not work in the future compared with the past, Shiller PE Ratio and PS Ratio will give false valuations.


Positron Shiller PE Ratio Related Terms


Positron Shiller PE Ratio Historical Data

* Premium members only.

The historical data trend for Positron's Shiller PE Ratio 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 Shiller PE Ratio Chart

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

Positron Semi-Annual Data
Dec97 Dec98 Dec99 Dec00 Dec01 Dec02 Dec03 Dec04 Dec05 Dec06 Dec07 Dec08 Dec09 Dec10 Dec11 Dec12 Dec13 Dec14 Dec24 Dec25
Shiller PE Ratio 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 0.00 0.00 0.00 0.00

POSC vs XTNT, COCH, SRTS: Shiller PE Ratio 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
30GF Score
Positron Corp POSC
Shiller PE Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Positron Shiller PE Ratio Calculation

For Shiller PE Ratio, 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 PE Ratio is also called PE10.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.

Positron's E10 for the fiscal year that ended in Dec25 is calculated as:

For example, Positron's adjusted earnings per share data for the fiscal year that ended in Dec25 was:

Adj_EPS=Earnings per Share (Diluted)/CPI of Dec25 (Change)*Current CPI (Dec25)
=-0.34/324.0540*324.0540
=-0.340

Current CPI (Dec25) = 324.0540.

Positron Annual Data

Earnings per Share (Diluted) CPI Adj_EPS
200712 -32.000 210.036 -49.371
200812 -28.000 210.228 -43.160
200912 -8.000 215.949 -12.005
201012 -8.000 219.179 -11.828
201112 -4.000 225.672 -5.744
201212 -4.000 229.601 -5.646
201312 0.000 233.049 0.000
201412 0.000 234.812 0.000
202412 -0.090 315.605 -0.092
202512 -0.340 324.054 -0.340

Add all the adjusted EPS together and divide 10 will get our 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.

Is Positron (POSC) Overvalued in 2026?

Based on GuruFocus' analysis, Positron stock appears to be overvalued. The current stock price of $1.64 is trading 1266.7% above its estimated GF Value™ of $0.12. GuruFocus considers Positron to be Significantly Overvalued.

Key valuation signals for POSC:

  • Shiller PE Ratio:
  • GF Value™: $0.12 vs. price of $1.64 (1266.7% above fair value)
  • GF Score™: 30/100 with 8 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.
30GF Score

Get the complete analysis for POSC

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

$1.64
Price
$0.12
GF Value