The dynamic financial results from a free and conscious human action, and it is therefore susceptible to ethical evaluation, since the financial year there are issues such as uncertainty, fluctuating prices, the risk inherent in the investment and financing alternatives, expectations of earnings, management information, fraud, money laundering, the transgression of the standards, speculation prudence in decision making and confidence in the financial system, among others. All of this necessarily affects the performance of individuals and motivation and institutional bodies to develop such activity. The purpose of the article is to approach some ethical behaviors that are manifested in the relationship between financial market operators and their customers, represented by organizations and individuals performing investments and / or financial. Without trying to deepen them or cover all wanted to emphasize the importance of ethics is the moment to invest, since, from the proper execution of the operations were motivated by the realization of ethical practices, in turn create confidence among market players and financial investors, so that in addition to financial expectations, the investor holds the social responsibility