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Josef Piotroski Screens

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Josef Piotroski - Associate professor of accounting at the Stanford University Graduate School of Business. Developed the F-Score.. Here follow a selection of stock screening strategies that we have modelled based on the writings of or about Josef Piotroski. These strategies are not endorsed by the author.

UK Data
3 strategies sorted by
Piotroski F-Score Price to Earnings Value Screen

The Piotroski F-Score screen aims to identify deep bargain-bucket stocks that are in recovery.  Josef Piotroski, a finance professor, recognized that, while it has long been shown that bargain stocks have strong collective returns, there is very wide individual variability. What he wondered was whether it was possible to weed out the poor performers and identify the winners in advance. He therefore sought to develop a simple accounting-based scoring system for evaluating a stock’s financial strength. Piotroski's F-Score looks at value stocks and tests nine variables from a company’s financial statements. One point is awarded for each test that a stock passes. Piotroski regards any stocks that scored eight or nine points as being the strongest. In this version of the screen, Price to Earnings, rather than Price to Book, is used as the measure of "cheapness".  more »

Value Investing
Annualised Return: 25.4%
Piotroski F-Score Price to Book Value Screen

The Piotroski F-Score screen aims to identify deep bargain-bucket stocks that are in recovery.  Josef Piotroski, a finance professor, recognized that, while it has long been shown that bargain stocks (having a low Price to Book Value) have strong collective returns, there is very wide individual variability. “Embedded in that mix of companies, you have some that are just stellar. Their performance turns around [but] half of the firms languish; they continue to perform poorly and eventually de-list or enter bankruptcy.” What he wondered was whether it was possible to weed out the poor performers and identify the winners in advance. He therefore sought to develop a simple accounting-based scoring system for evaluating a stock’s financial strength. Piotroski's F-Score looks at value stocks, i.e. the bottom 20% of the market in terms of price to book value, and tests nine variables from a company’s financial statements. One point is awarded for each test that a stock passes. Piotroski regards any stocks that scored eight or nine points as being the strongest. more »

Value Investing
Annualised Return: 23.4%
Piotroski High F-Score Screen

Josef Piotroski came up with a simple nine criteria scoring system to help identify bargain stocks in recovery.  It is known as the F-Score and is used extensively throughout Stockopedia on Stock Reports and in screens as a measure of an improving financial health trend.  But while his now famous original strategy (which we have modelled here) focused on applying the F-Score filter to only the cheapest stocks in the market, other analysts have discovered that the highest F-Scoring companies in the market in aggregate also outperform.   We have filtered the market in this strategy to just highlight the companies showing a Piotroski F-Score of 9. more »

Quality Investing
Annualised Return: 20.6%
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