| The research of this paper sel~Aect~bs t~sh~te ~rinf~alu~ce~tnce of the proportion of total dom estic institutional investors’shareholdings on the stock price information of the A-s hare market in the 20 quarters from 2016 to 2020.From the perspective of explana tory variables,it adds the heterogeneous institutions in institutional holdings,and t he influence of From the perspective of explanatory variables,we add different sec tors to which A shares belong to conduct research,and the stock price information is measured by the synchronization of stock prices obtained by three different calc ulation methods.The result is that the information concentration of the stock mark et can be effectively improved by the investor’s shareholding,and then the synchro nization of stock prices can be reduced.From the perspective of scientific research,the research angle of this paper is also more diversified.On the basis of focusing on the research on the overall share holding of institutional investors,this paper divides institutional investors into stab le and transactional institutional investors,and analyzes their influence on the infor mation content of corporate stock prices.The degree of influence of foreign institu tional investors’shareholding ratio on the information content of corporate stock pr ices has not focused on my country’s A-share market.This paper has conducted a c areful study and analysis of the A-share market.On this basis,this paper puts forward some research conclusions and policy s uggestions for stock investment and capital market development. |
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