According to the "Measures for the Administration of Information Disclosure by Listed Companies" (China Securities Regulatory Commission Order No. 40 issued on January 30, 2007), to standardize information disclosure behaviors of issuers, listed companies, and other information disclosure obligors, listed companies shall disclose relevant information promptly, accurately, and completely, including prospectuses, offering circulars, listing announcements, periodic reports, and interim reports.
A timely and accurate corporate announcement can provide investors with bearish or bullish signals that impact real-time markets. By analyzing historical announcements, academic researchers can systematically investigate patterns in market reactions, investor sentiment, and corporate performance. In the era of new media, market responses to corporate announcements have become more rapid and intense, all of which can be quantified through big data.
CnOpenData's A-share listed company financial report announcement dataset covers quarterly, semi-annual, and annual reports, incorporating key 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), category(分类), industry(行业), and fiscal year(年度). This comprehensive dataset provides robust support for research on A-share listed companies and securities markets.
Time Coverage
As of May 2025
Field Display
Sample Data
Related Literature
- Zhang Yeqing, Lu Yao, Li Leyun, 2021: "The Impact of Big Data Applications on Chinese Enterprises' Market Value: Evidence from Textual Analysis of Annual Reports of Chinese Listed Companies," Economic Research Journal, Issue 12.
Data Update Frequency
Annual update