Abstract
In this paper, it is going to understand behavior of investors of the capital market in Iran and their perceptions about financial information, which cause them to make decision to buy or sell stocks. The research was done according to 16 types of Myers-Briggs Type indicators and 4 Keirsey temperaments on direct junior investors at Tehran stock exchange forums. Financial information of four active companies includes two bad and two good companies was presented to them for making decision about selling or buying stocks after knowing each one personality. Briefly, it was clarified that investors clustered in the “Guardian” temperament, that significant differences were seen in their perception of financial information according to their characters and types. The Dividend per Share, Earning per Share and Return on Investment played main role in configuring investors’ decision. Guardian investors have a mental pattern about importance of financial information. Guardian’s characters have different attitude to financial information, which was significant in the inventory turnover and company’s budget.