Abstract:
Market has high sensitivity to the information that comes from surroundings. Efficient Market Hypothesis explain that the security’s price reflect all the availability of information. If there is new information that relevant to the market, the market will react to the information that given. In this study, the researcher would like to analyze the significant difference of stock price of PT Wijaya Karya (Persero) Tbk, before and after Credit Rating Announcement and Dividend Distribution. Both Credit Rating Announcement and Dividend Distribution are kind of information that might has significant impact to the market, in here stock price movement. The data used in this study is stock price before (February to May) and after (July to October) in period 2012, for credit rating announcement. Then for dividend distribution, the data used is from 2009 to 2011. The result of the study, shows that both kind of information is give significant difference in stock price movement. The result shows there is any significant difference to the stock price of PT Wijaya Karya (Persero) Tbk, before and after Credit Rating announcement, proved by the result of p-value is greater than 0.05. There is also significance difference between 1 day before and 1 day after Cum Dividend Date to the stock price of PT Wijaya Karya (Persero) Tbk, proved by the result of p-value is greater than 0.05
