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.
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.
Proteome SciencesPMSNF Earnings Yield (Joel Greenblatt) % is -11.92% as of Dec. 2025. The stock has 6 warning signs investors should review. Among 213 Medical Diagnostics & Research companies, Proteome Sciences ranks worse than 71.36% on this metric.
Proteome Sciences's Enterprise Value for the quarter that ended in Dec. 2025 was $31.36 Mil.
Proteome Sciences's EBIT for the trailing twelve months (TTM) ended in Dec. 2025 was $-3.60 Mil. Proteome Sciences's Earnings Yield (Joel Greenblatt) for the quarter that ended in Dec. 2025 was -11.92%.
The historical rank and industry rank for Proteome Sciences's Earnings Yield (Joel Greenblatt) % or its related term are showing as below:
PMSNF'
s Earnings Yield (Joel Greenblatt) % Range Over the Past 10 Years
Min: -19.85 Med: -7.4 Max: 9.04
Current: -12.32
During the past 13 years, the highest Earnings Yield (Joel Greenblatt) of Proteome Sciences was 9.04%. The lowest was -19.85%. And the median was -7.40%.
PMSNF's Earnings Yield (Joel Greenblatt) % is ranked worse than 71.36% of 213
companies
in the Medical Diagnostics & Research industry
Industry Median: -0.43
vs PMSNF: -12.32
Joel Greenblatt's definition of earnings yield has the same problems the regular earnings yield does. It does not consider the growth of the company. It only looks at one-year's business operation. For cyclical companies, the earnings yield is usually highest at the peak of the business cycle. But these earnings are rarely sustainable.
A better indicator of the attractiveness of an investment which takes growth into account is the Forward Rate of Return (Yacktman) %. Proteome Sciences's Forward Rate of Return (Yacktman) % for the quarter that ended in Dec. 2025 was 0.00%. The Forward Rate of Return uses the normalized Free Cash Flow of the past five years, and considers growth. The forward rate of return can be thought of as the return that investors buying the stock today can expect from it in the future.
Joel Greenblatt defines the earnings yield using the above equation because it more accurately reflects the company's profitability relative to its stock price. Items like interest payment and tax etc. are not directly related to the company's operational profitability.
Enterprise Value instead of market cap (share price) is used in the calculation because it is the real price stock and bond investors together pay for the company.
Be Aware
Joel Greenblatt's definition of earnings yield has the same problems the regular earnings yield does. It does not consider the growth of the company. It only looks at one-year's business operation. For cyclical companies, the earnings yield is usually highest at the peak of the business cycle. But these earnings are rarely sustainable.
Proteome Sciences Earnings Yield (Joel Greenblatt) % Related Terms
Proteome Sciences Earnings Yield (Joel Greenblatt) % Historical Data
* Premium members only.
The historical data trend for Proteome Sciences's Earnings Yield (Joel Greenblatt) % 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.
For the Diagnostics & Research subindustry, Proteome Sciences's Earnings Yield (Joel Greenblatt) %, along with its competitors' market caps and Earnings Yield (Joel Greenblatt) % 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.
Proteome Sciences Earnings Yield (Joel Greenblatt) % vs Medical Diagnostics & Research Industry
For the Medical Diagnostics & Research industry and Healthcare sector, Proteome Sciences's Earnings Yield (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Proteome Sciences's Earnings Yield (Joel Greenblatt) % falls into.
In his book, The Little That Beat the Market, hedge fund manager Joel Greenblatt defines Earnings Yield as operating income divided by enterprise value.
Proteome Sciencess Earnings Yield (Joel Greenblatt) for the fiscal year that ended in Dec. 2025 is calculated as
For company reported semi-annually or annually, GuruFocus only calculate annual data for Earnings Yield (Joel Greenblatt) and apply the annual figure to corresponding quarter.
What does a Earnings Yield (Joel Greenblatt) % of -11.92% mean?
Proteome Sciences (PMSNF) has a Earnings Yield (Joel Greenblatt) % of -11.92% as of Dec. 2025. Joel Greenblatt's earnings yield equals the ratio of earnings before interest and taxes to enterprise value. View historical data on Proteome Sciences and its competitors. According to the industry distribution chart, Proteome Sciences ranks #152 out of 213 companies in the Medical Diagnostics & Research industry, placing it in the top 71.4%.
Is Proteome Sciences' Earnings Yield (Joel Greenblatt) % too high?
Proteome Sciences' current Earnings Yield (Joel Greenblatt) % is -11.92%. Based on the distribution chart, Proteome Sciences ranks #152 out of 213 companies in the Medical Diagnostics & Research industry, which is below the industry midpoint.
How does Proteome Sciences' Earnings Yield (Joel Greenblatt) % compare to TMO and DHR?
According to the Medical Diagnostics & Research industry distribution chart, Proteome Sciences ranks #152 out of 213 companies for Earnings Yield (Joel Greenblatt) %. This places Proteome Sciences in the lower half of its industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Earnings Yield (Joel Greenblatt) % for a Medical Diagnostics & Research company?
A good Earnings Yield (Joel Greenblatt) % depends on the Medical Diagnostics & Research industry context. However, Earnings Yield (Joel Greenblatt) % 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 Earnings Yield (Joel Greenblatt) % mean?
A high Earnings Yield (Joel Greenblatt) % can signal that a stock is expensive relative to its fundamentals. Joel Greenblatt's earnings yield equals the ratio of earnings before interest and taxes to enterprise value. View historical data on Proteome Sciences and its competitors. Proteome Sciences's current Earnings Yield (Joel Greenblatt) % is -11.92%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Proteome Sciences stock overvalued right now?
Based on GuruFocus' analysis, Proteome Sciences (PMSNF) is currently considered Possible Value Trap. The stock's GF Value™ is $0.02, compared to a current price of $0.02 — trading 1.3% above its estimated fair value. The current Earnings Yield (Joel Greenblatt) % is -11.92%. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Earnings Yield (Joel Greenblatt) % calculated?
Earnings Yield (Joel Greenblatt) % is calculated from a company's financial statements. For Proteome Sciences (PMSNF), the current Earnings Yield (Joel Greenblatt) % is -11.92% as of Dec. 2025. 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.
Proteome Sciences PLC is engaged in protein biomarker research and development. The company is a provider of contract research services for the identification, validation and application of protein biomarkers. The company's only reportable segment is the sale of goods and biomarker services. The company generates maximum revenue from the TMT product and end customer sales-based royalties. Geographically, it has a presence in the United States, the United Kingdom, the European Union, and Others.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
PMSNF has been successfully added to your 
