According to the Measures for the Administration of Information Disclosure by Listed Companies (CSRC Order No. 40) promulgated on January 30, 2007, to standardize information disclosure behaviors of issuers, listed companies, and other information disclosure obligors, listed companies are required to disclose information promptly, accurately, and completely, including prospectuses, offering circulars, listing announcements, periodic reports, and interim reports.
Timely and accurate corporate announcements can provide investors with signals of market downturns or upturns, influencing real-time market movements. Retrospective analysis of historical corporate announcements enables academic investigations into market reactions, investor sentiment, and corporate performance. In the current era of new media, market responses to corporate announcements have become more rapid and pronounced, all of which can be quantified through big data.
CnOpenData's A-Share Listed Companies Announcement Database comprehensively covers 29 categories of announcements, including annual reports, semi-annual reports, quarterly reports, corporate governance, shareholder meetings, and daily operations. It incorporates critical fields such as stock code (股票代码), company name (公司名称), announcement title (公告标题), announcement date (公告时间), classification (分类), industry (行业), and fiscal year (年度). This dataset provides robust support for research on A-share listed companies and securities markets.
Time Coverage
As of May 2025
Table Preview
Field Description
注：本数据共29个表格，且字段一致，样本数据仅用作字段结构与样式展示。
Sample Data
Due to the extensive number of tables, this page only displays Annual Report Announcement Data of A-Share Listed Companies. Full sample data can be downloaded at the end of this page.
Annual Report Data of A-Share Listed Companies
Related Literature
- Zhang Yeqing, Lu Yao, Li Leyun, 2021: The Impact of Big Data Applications on Corporate Market Value: Evidence from Textual Analysis of Chinese Listed Companies' Annual Reports, Economic Research Journal 12.
Data Update Frequency
Annual Update