A Study on the Relevancy between Information Disclosure of Listed Companies and Abnormal Fluctuation of Indiveidual Stock in the Chinese Security Market
Jun Wang · The Study of Finance and Economics · 2002
The paper puts forward a new definition for abnormal fluctuation of individual stock,and makes some descriptive statistic analysis on the relationship between the information disclosure of listed companies and the abnormal fluctuation of individual stock in our security market. The result of analysis shows that the utility of information disclosure of listed companies is small;that there are no distinct differences of information disclosure between different block listed companies;and that the abnormal fluctuation caused by information disclosure is extraordinarily frequent,but the whole tendency is turning for the better.Finally it puts forward some policy suggestions about information disclosure of listed companies in the security market.