It is the CSMAR Chinese stock market transaction database developed by Guotai'an Information Technology Co., Ltd.

Guotai’an CSMAR database is positioned as a research-based precision database, serving academic universities and financial institutions for the purpose of research and quantitative investment analysis.

The CSMAR database refers to the classification standards of standard databases such as CRSP and COMPUSTAT, combined with the actual situation of the domestic financial market and the research habits of universities and institutions, divides the database into stocks, companies, funds, bonds, derivatives , economy, industry, overseas, information, etc. 12 series, 79 sub-databases. A high-precision research database that comprehensively covers China's securities, futures, foreign exchange, macro, industry and other major economic and financial fields. It is an essential basic tool for investment and empirical research.