This paper revisits the Piotroski F-score strategy in the U.S. stock universe from an investor's perspective. Primarily, we aim to answer the question, whether the high abnormal returns of more than 20 percent p.a. previously proclaimed by academics (Piotroski, 2000) and practitioners (AAII,...

The business reporting standard XBRL offers the opportunity to easily extract and analyze a sufficient number of monetary items out of single annual reports for statistical analysis purposes. Using XBRL 10-K reports filed with the SEC EDGAR system, we derive first digit distributions for single...