| Research on stock split has frequently been undertaken. The result vary, but fundamentally can be Classified into two groups. First, the stock split is purely " cosmetic ". Second, the stock split has a real effect on stocks. The difference between these opinions raises controversy. The purpose of this study is to examine whether stock split influence trading volume, liquidity and stock return of an individual stock as well as in a group of stocks as a portfolio. Analysis use paired sample t-test two sided or two-tailed test to analyst the difference between before and after stock split from examine three variable as trading volume, liquidity, and stock return, where as the stock return or abnormal return to evaluate a (alpha) use- simple regression analysis then see the difference between before and after stock split use paired sample t-test two sided or two-taled test. Overall, the result of this study show that stock split did influence trading volume, and stock liquidity the result can see from stock spread, but stock split didn't influence abnormal return in a portfolio. |