全部树

Cost of living data for global residentsNEW

China high-tech enterprise patent statisticsNEW

Statistics on entry and exit information of Chinese partnershipsNEW

Patents and citation data of Little Giant and individual champion companiesNEW

Small giant and single champion enterprise design patent details table

Digital economy patent application and authorization dataNEW

Tax investigation of corporate patents and citation dataNEW

Patent and citation data of Chinese industrial enterprisesNEW

Patent and citation data of A-share listed companiesNEW

Patent details of A-share listed companies
A-share listed companies' design patent application details table
Details of Design Patents Authorized by A-share Listed Companies

Statistics on the entry and exit of Chinese industrial and commercial enterprisesNEW

Basic information data of manufacturing industrial and commercial registered enterprisesNEW

China foreign trade index data

China university patent statisticsNEW

Green patents and citation data of Chinese industrial enterprisesNEW

Details of Green Patents of Chinese Industrial Enterprises

Green patents and citation data of A-share listed companies

A-share listed companies green patent details table

  According to the Administrative Measures for Information Disclosure of Listed Companies, listed companies as obligors of information disclosure should authentically, accurately, timely, and completely disclose legally required and voluntary information to the market. This publicly disclosed information includes but is not limited to: company profile, major accounting data and financial indicators, shareholder equity holdings, executive compensation, etc. The information disclosure of listed companies serves as crucial evidence for government regulation and investor behavior, combining effective administrative supervision with market oversight to form a dual-track effect that promotes stable and orderly development of the securities market.

  CnOpenData presents institutional research data of A-share listed companies, containing key fields such as Stock code(股票代码), Company abbreviation(公司简称), Research date(调研日期), Research institution(调研机构), Institution type(调研机构类型), Researchers(调研人员), Reception method(接待方式), Company reception personnel(上市公司接待人员), Venue(接待地点), and Research content(调研内容).


Time Coverage

As of 2022


Field Display


Sample Data


Relevant Literature

  • Tan, Jinsong & Lin, Yuchen, 2016: "The Governance Effect of Institutional Investors on Information Disclosure: Evidence from Institutional Research Activities", Nankai Business Review 5.
  • Bu, Jun & Sun, Guangguo, 2020: "On-site Investor Research and Corporate Misconduct: Mechanism and Effectiveness Test", Accounting Research 5.

Data Update Frequency

Annual Update