The Effect of The Working Cabinet Reshuffle Volume II on Abnormal Return and Abnormal Trading Volume Activity of The Companies Listed in Jakarta Islamic Index (JII)

摘要

This study aims to examine the differences of reaction in the Jakarta Islamic Index (JII) before and after the announcement of the Working Cabinet Reshuffle Volume II on July 27, 2016. The study period was 21 days which consists of 10 days before the event and 10 days after the event. The method used in this study is event study with market adjusted model method that observes the market's reaction to the information of an announcement or publicity events. The results of the study show that there is a reaction at the abnormal return and abnormal trading before and after the announcement of the cabinet reshuffle which is the value of significance, so it can be concluded that the capital market is efficient with a weak form.