This study aims to examine the effect of dividend yield, earnings variability, asset growth and debt to equity ratio on beta of Islamic stocks in companies incorporated in the Jakarta Islamic Index for the period 2014-2017. The population used in this study is the company listed on the Indonesian Syariah Stock Index (ISSI). The sampling method using purposive sampling, where the selection of company samples is based on certain criteria, so as to get as many as 17 companies incorporated in the Jakarta Islamic Index (JII). The analytical tool in this study is multiple linear regression. The results of this study indicate that earnings variability variables affect the beta of Islamic stocks, while dividend yield, asset growth and debt to equity ratio do not affect the beta of Islamic stocks.