: The purpose of this research aims to examine of prospectus information on initial return of the sample companies. The population of this research is a underpricing IPO company in 2011 - August 2015 as many as 88 companies. Taken a sample of 70 companies on the model 1 and 73 companies in model 2 with a purposive sampling techniques. The variables of research in model 1 is Return On Equity (ROE) on the initial return where as in model 2 is the Debt to Equity Ratio (DER) on the initial return. The research use simple regression analysis. Suprising results obtained of this research that there is no effect between variables in both model established.