Business valuation is something that has been more general and discussion around this subject is very common. The discussions often revolve the various principles and procedures that a business appraiser can apply when a valuation of a business should be done. When there are different evaluation methods there are also resulting in an assumption that there are not so easy to create a complete objective business value. The individual evaluator choice of method will determine the result of the business value. The global world for each business has been more uncertain and turbulent/changeable which have tended to exacerbate the work for the evaluator to determine a business value. The reason for this is that the future prospects are very difficult to predict when the company acts in a changeable business world. The purpose is how a business appraiser in reality intends to value a company that belongs to a branch which considers be changeable. The fundamental analysis is a value method, which can apply in order to reduce uncertainties of a business valuation. The different parts in the fundamental analysis describes in the theoretical framework. There is also a description for the most common value methods and a description of what the company’s global world is about and how those parameters affect the company. The method, which is applied in this study, is a qualitative research embryo. The reason to a qualitative research embryo is to create an understanding platform. This study has been based on interviews in order to get response to our questionnaires. The interviews have been done with persons which is active in this business area and the interviews where carry out through personal meetings at each company. The result is a summary of all the 24 questions we have asked to all the respondents. We have created categories in the result in order to separate the respondent replies and in such a way got a summarized view of the replies. The respondent replies are connected to the theoretical framework of the study and with this we do comparisons with how the respondents are implementing a business valuation, which are acting in a changeable branch vs. how it should be in the theory. The final assumption is that there are no standardized models that can be used to value the business world for a company and the valuators mainly focus on the future development for the company and methods at the implementation of a business value. Parts of the fundamental analysis are to be found in the valuator analyses but not as complete and therefor this shows that the company is acting in a changeable/turbulent world.

Syftet med denna undersökning är att utveckla den investeringsstrategi som Piotroski (2000) tog fram, grundad på fundamentalanalys, genom att sammanlänka variabler från Lev & Thiagarajan (1993) som visat sig vara värderelevanta indikationer på företags rapporterade resultat. För att genomföra detta utvecklas en modell med Piotroskis (2000) F-score som grund. Antalet signaler i modellen utökas från 9 till 12 stycken. Undersökningen genomförs med data från Stockholmsbörsen under perioden 1998 – 2012. Resultatet visar att både den utvecklade modellen och Piotroskis modell presterar en positiv marknadsjusterad avkastning under hela undersökningsperioden. Samtidigt ökar antalet investeringar i den utvecklade modellen vilket bidrar till en minskad risk och en ökad spridning.