In recent years, the concept of strategy in the organizational literature has been seriously considered by financial researchers. Strategies will have different consequences and therefore it is necessary to analyze the current information of companies and review their results in order to implement them. The main purpose of this study is to investigate the effect of financial reporting quality on the holding costs of investment portfolios in momentum and value strategies. The research method is applied in terms of purpose and empirical. It is also descriptive-correlative in nature; Because in this type of research, the researcher seeks to evaluate the relationship between two or more variables In order to test the research hypotheses, the multiple regression model will be used. The time domain of the research is the data of companies listed on the Tehran Stock Exchange between the years 1392 to 1398. In order to collect data, the new software of Rahavard and the official website of the Securities and Exchange Organization have been used. The results showed that the poor quality of financial reporting causes transient institutional investors in their investment portfolio to adopt a value strategy less than a momentum strategy and this factor also reduces the costs of adopting a momentum strategy compared to the value strategy (due to less holding time of the investment portfolio).