This study aims to explain how Corporate Governance relates to company performance. The New Market level of BM&F Bovespa was chosen to analyze business performance and value that they have on the market from the minority shareholder perspective. It was being perceived over the past year that they had the need to know the company, to have rules to protect them against abuse of executive management and the lack of boards that ensure their rights. Thus, this work is the main internal mechanism of corporate governance, the board of directors that consists of monitoring and ensuring that managers behaviors are aligned with the investor’s interests and corporate governance as a tool for the Investor Relations website allowing the investor to make an analysis of the company. This study is based on the code of good corporate governance practices of the Institute of Corporate Governance (IBGC) and in the primer of corporate governance practices of the Securities Commission (CVM), in order to check the influence of existing internal governance mechanisms on the corporate board of directors and internal performance indicators on the performance of the company s stock before the standpoint of minority shareholders.