Piotroski F-score
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Piotroski F-score is a number between 0 and 9 which is used to assess strength of company's financial position. The score is used by financial
investor An investor is a person who allocates financial capital with the expectation of a future Return on capital, return (profit) or to gain an advantage (interest). Through this allocated capital the investor usually purchases some species of pr ...
s in order to find the best value stocks (nine being the best). The score is named after Stanford accounting professor Joseph Piotroski.


Calculation procedure

The score is calculated based on 9 criteria divided into 3 groups. :::''Profitability'' #
Return on Assets The return on assets (ROA) shows the percentage of how profitable a company's assets are in generating revenue. ROA can be computed as below: :\mathrm = \frac The phrase return on average assets (ROAA) is also used, to emphasize that average as ...
(ROA) (1 point if it is positive in the current year, 0 otherwise); #Operating
Cash Flow Cash flow, in general, refers to payments made into or out of a business, project, or financial product. It can also refer more specifically to a real or virtual movement of money. *Cash flow, in its narrow sense, is a payment (in a currency), es ...
(1 point if it is positive in the current year, 0 otherwise); #Change in Return of Assets (ROA) (1 point if ROA is higher in the current year compared to the previous one, 0 otherwise); #
Accruals In accounting and finance, an accrual is an asset or liability that represents revenue or expenses that are receivable or payable but which have not yet been paid. In accrual accounting, the term accrued revenue refers to income that is recogni ...
(1 point if Operating Cash Flow/Total Assets is higher than ROA/Total Assets in the current year, 0 otherwise); :::''Leverage, Liquidity and Source of Funds'' #Change in Leverage (long-term) ratio (1 point if the ratio is lower this year compared to the previous one, 0 otherwise); #Change in Current ratio (1 point if it is higher in the current year compared to the previous one, 0 otherwise); #Change in the number of
shares In financial markets, a share (sometimes referred to as stock or equity) is a unit of equity ownership in the capital stock of a corporation. It can refer to units of mutual funds, limited partnerships, and real estate investment trusts. Sha ...
(1 point if no new shares were issued during the last year); #:''Operating Efficiency'' #Change in Gross Margin (1 point if it is higher in the current year compared to the previous one, 0 otherwise); #Change in Asset Turnover ratio (1 point if it is higher in the current year compared to the previous one, 0 otherwise); Some adjustments that were done in calculation of the required
financial ratios A financial ratio or accounting ratio states the relative magnitude of two selected numerical values taken from an enterprise's financial statements. Often used in accounting, there are many standard ratios used to try to evaluate the overall fin ...
are discussed in the original paper. The score is calculated based on the data from financial statement of a company. A company gets 1 point for each met criterion. Summing up of all achieved points gives Piotroski F-score (number between 0 and 9).


Interpretation

The highest possible Piotroski score is 9 and the lowest is 0. Higher the score better the value of the company's stock. F-score of 8–9 is considered to be strong. Alternatively, firms achieving the F-score of 0–2 are considered to be weak. Average value of Piotroski F-score can be different in different branches of economy (e.g. manufacturing, finance, etc.). This should be taken into consideration when comparing companies with different specializations.


Limits

The Piotroski F-score is a method invented or thought up a few decades ago. Since realities are no longer what they were when it was conceived, it can happen that this strategy, although effective, suffers from some shortcomings. First, it is a strategy that only compares a company's results in one year to those of the previous year. This makes it difficult to apply in cyclical sectors or during particular periods such as during health crises that affect the profitability of all sectors (e.g. the Covid-19 pandemic in 2020).


Other notes

* Some improvements to the Piotroski F-score were suggested in Alpha Architect and
American Association of Individual Investors American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, ...
(AAII) official blogs. * A 2024 study evaluates the formula for the U.S. market from 1963 to 2022 and compares it with the performance of the Magic Formula, Conservative Formula, and Acquirer’s Multiple. The study finds that all four formulas generate significant raw and risk-adjusted returns, primarily by providing efficient exposure to well-established style factors. However, no single formula consistently outperforms across all performance metrics.


See also

*
Altman Z-score Example of an Excel spreadsheet that uses Altman Z-score to predict the bankruptcy.html" ;"title="probability that a firm will go into bankruptcy">probability that a firm will go into bankruptcy within two years The Z-score formula for predic ...
* Beneish M-score * Ohlson O-score *
Fundamental analysis Fundamental analysis, in accounting and finance, is the analysis of a business's financial statements (usually to analyze the business's assets, Liability (financial accounting), liabilities, and earnings); health; Competition, competitors and Ma ...
* Magic formula investing * Value investing * TMAI * FPI - Fundamental Power Index


References

{{wikidata-inline Financial risk management Valuation (finance) Credit scoring Conseil Boursier Gratuit
Le Piotroski F-Score : Outil D’un Investisseur Intelligent En Bourse
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