The authors of the publication are studying the strategies of world’s best and most influential stock market investors. The objective of the publication is to determine most important points of different investment strategies that would help the user of the strategy to make decision whether or not to include the particular stock in the investment portfolio. To meet the objective, authors of the publication are ap-plying different investment strategies to companies’ stocks listed in NASDAQ OMX RIGA stock ex-change. In the conclusion the authors of the publication gather results in a table that better show common features and differences of various investment strategies. Ultimately, the best stock portfolio is being created of NASDAQ OMX RIGA stocks applying different investment strategies. The result of the research lets authors of the publication make conclusions and give recommendations.