The Piotroski F-Score Screen is a quality strategy outlined by the famed academic Professor Joseph Piotroski and investigated further in a 2011 paper titled "Identifying expectation errors in Value/Glamour stocks". The strategy hunts for the best quality shares in the market regardless of price. In this version of the screen we have selected the highest scoring stocks in the market using Piotroski's nine-point fundamental checklist called the F-Score. While the F-Score was originally used only for filtering value stocks, Piotroski discovered it was just as effective for filtering glamour stocks: "Firms experiencing the strongest improvement in fundamentals (FSCORE ?7) generate a mean size-adjusted return of 5.5 percent annually". What Piotroski essentially was saying was that the highest scoring stocks returned 5.5% more than the market - these findings have been backed up by independent research by Societe Generale. Perhaps as a result the F-Score has become extremely popular with investors and is a core component of the Stockopedia StockReports. more »
The Piotroski F-Score is a nine-criteria scoring system developed by financial academic, Joseph Piotroski in a famous research paper. Each of the nine points relate to the change in a ratio based on the company's accounts. For a full definition please Read this Article
Stockopedia explains Piotroski F-Score...
Companies with a score of 8 or 9 have been found as a group to outperform weak stocks by 7.5% annually over a 20 year period. The weakest stocks, scoring 2 or lower, were found by Piotroski to be five times more likely to fall into financial problems.