Composite Index (JCI) reflects a value that serves as a measurement of performance of a joint-stock on the bourse. Composite Stock Price Index is a reflection of the investments made by the people (investors) in stock. JCI into a kind of door and the beginning of the consideration to make investments, because of the CSPI can be known in general situation. This study aims to examine empirically the effect of inflation and interest rate of SBI against SahamGabungan Price Index (CSPI) in BursaEfek Jakarta.