摘要:The purpose of this study was to analyze the market reaction as indicated by rising the stock price as a result of the implementation corporate governance mechanisms, environmental performance and corporateenvironmental disclosure published on the annual report in 2010. This study uses hypothesis testing approach to explain the causal relationship between the variables of the study. The population in this study is a registered company in Indonesia Stock Exchange. The results show that the application of corporate governance mechanism through the principles of good corporate governance has a significant effect on the market reaction that is proxied by stock prices. The tests performed on the environment performance and environment disclosure which is proxied by the Rating of Company Performance in Environmental Management (PROPER) and the Indonesian Sustainability Reporting Award (ISRA) found that there is no significant effect on the market reaction that is proxied by stock prices.