According to the Administrative Measures for Information Disclosure of Listed Companies (CSRC Order No. 40) promulgated on January 30, 2007, to standardize the information disclosure behaviors of issuers, listed companies, and other obligated information disclosers, listed companies shall disclose relevant information in a timely, accurate, and complete manner. This includes prospectuses, fundraising prospectuses, listing announcements, periodic reports, and interim reports.
A timely and accurate listed company announcement can provide investors with signals of negative or positive market sentiment, influencing real-time markets. Furthermore, analyzing historical announcements enables academic research to trace clues—market reactions, investor sentiment, and corporate performance. In the current era of new media, market reactions to listed company announcements are more intense and rapid, all of which can be reflected through big data.
CnOpenData's A-Share Listed Company Financial Report Announcement Data includes quarterly, semi-annual, and annual reports, covering fields such as stock code(股票代码), company name(公司名称), announcement title(公告标题), announcement time(公告时间), category(分类), industry(行业), and year(年度). The dataset is exceptionally comprehensive, providing robust data support for research on A-share listed companies and securities markets.
Time Coverage
As of May 2025
Field Display
Sample Data
Related Literature
- Zhang, Y. Q., Lu, Y., & Li, L. Y. (2021). The Impact of Big Data Applications on the Market Value of Chinese Enterprises: Evidence from Textual Analysis of Annual Reports of Chinese Listed Companies. Economic Research Journal, 12.
Data Update Frequency
Annual updates