摘要：Keyword: Keywords: investment, funds, stockAbstrack:ABSTRACTCompany's growth will create many investment choices (investment option) that can be done by the company in the future. Investment choice is then known as the Investment Opportunity Set (IOS). Funds are used to make investment choices are not only derived from capital in the company itself but also from the sale of shares involving investors. Of the total funds invested investors, of course, investors expect a high return value of the investments that they cultivate. This study aims to examine the influence of Investment Opportunity Set (IOS) as a proxy for growth in a company's stock return manufacturing company. IOS used is the Market to Book Value of Assets (MKTBKASS), Market to Book Value of Equity (MKTBKEQ), the ratio of EPS / Price and Capital Expenditures to Book Value of Assets (CAPBVA). This study used a purposive sampling method (judgment) in research and sampling conducted over 5 years of observation that is in 2004-2008, and selected sample of 21 manufacturing companies. Tests on the variables of research conducted using AMOS software version 5.0. Regression test results showed that the ratio MKTBKASS and MKTBKEQ IOS has a positive and significant impact on stock returns for manufacturers, while the IOS ratios E / P and CAPBVA do not have a positive and significant influence on stock return manufacturing company. This shows that the larger the assets used by the company in running its business and the better ability of the company in acquiring and managing their capital will have positive and significant impact on stock returns in the manufacturing sector companies.
