The purpose of this article is to deal with the efficient market hypothesis for behavioral finance: investigating the factors influencing the behavior of investors. Investors should use new methods to understand and make better decisions in financial markets. Behavioral finance examines the thoughts, insights, and emotions involved in the decision-making processes of investors, behavioral finance tries to prove why financial markets are inefficient, also behavioral finance looks for the impact of psychological processes, sociology, neuroscience and institutional factors in investors' decisions. current research is a developmental application in terms of its purpose, and a descriptive survey in terms of collecting data and information. research variables are: speed of information dissemination, consumer behavior, timely information dissemination, general information dissemination, logical behavior and emotional behavior of investors. The socio-statistics of the research includes data collected from 160 capital market participants in the form of a questionnaire. In the present study, SMART PLS3 software was used to analyze the collected data from the structural equation model. The results of the research indicate that investors should pay attention to variables such as the speed of information spread and the mentioned variables in their investment decisions, because it has a significant impact on their decisions.