The purpose of this study is to investigate the effect of market product competition and financial flexibility on the opportunistic strategy of companies listed on the Tehran Stock Exchange. This study is applied regarding purpose and descriptive-correlational regarding nature and method. The statistical population of the study included all the companies listed on the stock exchange in the 5 years from 2017 to 2021. They were selected through systematic elimination sampling. A total of 105 companies were studied. Regression analysis was used to analyze the research data. Data were analyzed using Excel and Eviews software. The results revealed that market product competition does not significantly affect the opportunistic strategy of companies. The results also revealed that financial flexibility does not significantly affect the opportunistic strategy of companies. The results showed that market product competition does not significantly affect the relationship between financial flexibility and opportunistic strategy.
