The developer of the system is Joseph D. Piotroski is relatively unknown accounting professor who shuns publicity and rarely gives interviews.
He graduated from the University of Illinois with a B.S. in accounting in 1989, received an M.B.A. from Indiana University in 1994. Five years later, in 1999, after earning a Ph.D. in accounting from the University of Michigan, he became an associate professor of accounting at the University of Chicago.
He wanted to see if he can develop a system (using a simple nine-point scoring system) that can increase the returns of a strategy of investing in low price to book (referred to in the paper as high book to market) value companies.
What he found was something that exceeded his most optimistic expectations.
Buying only those companies that scored highest (8 or 9) on his nine-point scale, or F-Score as he called it, over the 20 year period from 1976 to 1996 led to an average out-performance over the market of 13.4%.
Even more impressive were the results of a strategy of investing in the highest F-Score companies (8 or 9) and shorting companies with the lowest F-Score (0 or 1).
Over the same period from 1976 to 1996 (20 years) this strategy led to an average yearly return of 23%, substantially outperforming the average S&P 500 index return of 15.83% over the same period.
Plymouth Industrial REIT Piotroski F-Score Related Terms
Plymouth Industrial REIT Piotroski F-Score Historical Data
* 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.
PLYM vs IIPR, ILPT, MDV: Piotroski F-Score Comparison
For the REIT - Industrial subindustry, Plymouth Industrial REIT's Piotroski F-Score, along with its competitors' market caps and Piotroski F-Score 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.
Plymouth Industrial REIT Piotroski F-Score vs REITs Industry
For the REITs industry and Real Estate sector, Plymouth Industrial REIT's Piotroski F-Score distribution charts can be found below:
* The bar in red indicates where Plymouth Industrial REIT's Piotroski F-Score falls into.
* 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.
*Note: If the latest quarterly/semi-annual/annual total assets data is 0, then we will use previous quarterly/semi-annual/annual data for all the items in the balance sheet.
Profitability
Question 1. Return on Assets (ROA)
Net income before extraordinary items for the year divided by Total Assets at the beginning of the year.
Score 1 if positive, 0 if negative.
Plymouth Industrial REIT's current Net Income (TTM) was 92.8.
==> Positive ==> Score 1.
Question 2. Cash Flow Return on Assets (CFROA)
Net cash flow from operating activities (operating cash flow) divided by Total Assets at the beginning of the year.
Score 1 if positive, 0 if negative.
Plymouth Industrial REIT's current Cash Flow from Operations (TTM) was 101.0.
==> Positive ==> Score 1.
Question 3. Change in Return on Assets
Compare this year's return on assets (1) to last year's return on assets.
Plymouth Industrial REIT's return on assets of this year was 0.06201839. Plymouth Industrial REIT's return on assets of last year was 0.00081747.
==> This year is higher. ==> Score 1.
Question 4. Quality of Earnings (Accrual)
Compare Cash flow return on assets (2) to return on assets (1)
Plymouth Industrial REIT's gearing of this year was 0.4204059. Plymouth Industrial REIT's gearing of last year was 0.43144438.
==> This year is lower or equal to last year. ==> Score 1.
Question 6. Change in Working Capital (Liquidity)
Compare this year's current ratio (current assets divided by current liabilities) to last year's current ratio.
Score 1 if this year's current ratio is higher, 0 if it's lower
Plymouth Industrial REIT's current ratio of this year was 0.13436544. Plymouth Industrial REIT's current ratio of last year was 0.8331183.
==> Last year's current ratio is higher ==> Score 0.
Question 7. Change in Shares in Issue
Compare the number of shares in issue this year, to the number in issue last year.
Score 0 if there is larger number of shares in issue this year, 1 otherwise.
Plymouth Industrial REIT's number of shares in issue this year was 44.15. Plymouth Industrial REIT's number of shares in issue last year was 45.009.
==> There is smaller number of shares in issue this year, or the same. ==> Score 1.
Efficiency
Question 8. Change in Gross Margin
Compare this year's gross margin (Gross Profit divided by sales) to last year's.
Score 1 if this year's gross margin is higher, 0 if it's lower.
Plymouth Industrial REIT's gross margin of this year was 0.69670038. Plymouth Industrial REIT's gross margin of last year was 0.68879639.
==> This year's gross margin is higher. ==> Score 1.
Question 9. Change in asset turnover
Compare this year's asset turnover (total sales for the year divided by total assets at the beginning of the year) to last year's asset turnover ratio.
Score 1 if this year's asset turnover ratio is higher, 0 if it's lower
Plymouth Industrial REIT's asset turnover of this year was 0.12797754. Plymouth Industrial REIT's asset turnover of last year was 0.13651719.
==> Last year's asset turnover is higher ==> Score 0.
Evaluation
Piotroski F-Score
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7
Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
Plymouth Industrial REIT has an F-score of 7. It is a good or high score, which usually indicates a very healthy situation.
Plymouth Industrial REIT (PLYM) has a Piotroski F-Score of 7 as of Jun. 26, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Plymouth Industrial REIT and its competitors. This is 40% above median its historical median of 5.00. Over the past decade, Plymouth Industrial REIT's Piotroski F-Score has ranged from 4.00 to 8.00.
Is Plymouth Industrial REIT's Piotroski F-Score too high?
Plymouth Industrial REIT's current Piotroski F-Score of 7 is 40% above median its 10-year median of 5.00. Over the past 10 years, this metric has ranged from a low of 4.00 to a high of 8.00. The REITs industry median Piotroski F-Score is 6.00. Plymouth Industrial REIT's value of 7 is 16.7% above this industry median. Overall, Plymouth Industrial REIT has a GF Score™ of 54/100, reflecting its overall financial health beyond just this single metric.
How does Plymouth Industrial REIT's Piotroski F-Score compare to IIPR and ILPT?
Plymouth Industrial REIT's Piotroski F-Score of 7 can be compared against companies in the REITs industry. The industry median Piotroski F-Score is 6.00. Plymouth Industrial REIT's value of 7 is 16.7% above this benchmark. Historically, Plymouth Industrial REIT's own Piotroski F-Score has ranged from 4.00 to 8.00 over the past decade. While the company's 10-year median is 5.00 vs. the industry median of 6.00, Plymouth Industrial REIT has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Piotroski F-Score for a REITs company?
The median Piotroski F-Score among REITs companies is 6.00, based on 888 companies in the industry. Companies in the top quartile (top 25%) have a Piotroski F-Score significantly above this median, while those in the bottom quartile fall well below. However, Piotroski F-Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Plymouth Industrial REIT's current Piotroski F-Score of 7 is 16.7% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Piotroski F-Score mean?
A high Piotroski F-Score can signal that a stock is expensive relative to its fundamentals. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Plymouth Industrial REIT and its competitors. For the REITs industry, the median Piotroski F-Score is 6.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Plymouth Industrial REIT's current Piotroski F-Score is 7, which is 40% above median its own 10-year median of 5.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Plymouth Industrial REIT stock overvalued right now?
Plymouth Industrial REIT (PLYM) has a current Piotroski F-Score of 7. The stock's GF Value™ is $20.52, compared to a current price of $21.98 — trading 7.1% above its estimated fair value. The current Piotroski F-Score is 7, which is 40% above median its 10-year median of 5.00 and 16.7% above the REITs industry median of 6.00. Plymouth Industrial REIT's overall GF Score™ is 54/100 with 11 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Piotroski F-Score calculated?
Piotroski F-Score is calculated from a company's financial statements. For Plymouth Industrial REIT (PLYM), the current Piotroski F-Score is 7 as of Jun. 26, 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 Plymouth Industrial REIT (PLYM) Overvalued in 2026?
Based on GuruFocus' analysis, Plymouth Industrial REIT stock appears to be overvalued.
The current stock price of $21.98 is trading 7.1% above its estimated GF Value™ of $20.52.
Key valuation signals for PLYM:
Piotroski F-Score: 7 (40% above median its 10-year median of 5.00)
GF Value™: $20.52 vs. price of $21.98 (7.1% above fair value)
No single metric tells the full story. See the PLYM stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Plymouth Industrial REIT Inc is a full-service, vertically integrated, self-administered, and self-managed Maryland corporation. It is focused on the acquisition, ownership, and management of single and multi-tenant Class B industrial properties, including distribution centers, warehouses, and light industrial properties, located in secondary and primary markets across the United States. The company has one reportable segment, which is Industrial properties. The majority of its property portfolio is spread across Florida, Ohio, Indiana, Tennessee, Illinois and Georgia, among others. It receives income from the rental revenue through its properties.
54GF Score
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Piotroski F-Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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