Theoretically, the method and the extent of people's accessibility to the necessary information for decision making have a direct effect on what is going on in the market. Given the fact that the investors financial behavior and the decision making process in stock exchange originates from different factors, the present study sought to identify the influential factors. First the data was gathered through a questionnaire, then factor analysis was performed and finally, the political, economic and psychological factors along with the financial variables in the corporation were deeply investigated through course analysis and using Lisrel software. Findings indicated that the political, psychological, economic and financial factors respectively influenced the stock holders' decision making at Tehran stock exchange.
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