Master thesis in Business Administration, Swedish Business School at Örebro University, spring semester 2012 Authors: Anders Oskarsson & Christian Uhlander Title: I’m going to make you rich! -With a little help from Piotroski Research objective: This paper examines whether a simple account-based analysis strategy, F_SCORE, can improve returns earned by an investor. The results show that F_SCORE generated a 69,7 % annual return between 2001-2010 at the Swedish market, which was better than the further developed model A_SCORE. Overall, the evidence suggests that the market does not incorporate historical information into prices in a timely manner. Methodology: The foundation for this thesis is based on a quantitative approach and empirical material is gathered from Thomson Reuters Datastream for the Swedish market.