This study will analyze the differences of two variables, liquidity and abnormal returns before and after sto ck split event on the companies listed in Indonesia Stock Exchange period 2013-2014. The method used verification with ev ent study approach. Observations were made for abnormal return average and trading volume activity average for 10 days bef ore, the event date, and 10 days after the event. The population in this study is company that do stock split and li ted on Indone sia Stock Exchange (IDX). Hypothesis testing used different test analysis model (T-test Paired Two Sample) with significant lev el of 5%. The result showed that there was no significant difference between the liquidity and abnormal return before and after stock split event on companies taking stock split at Indonesia Stock Exchange period 2013-2014.
Keywords: Stock Split, Liquidity, Abnormal Return