There are many indexes compiled by Wonder himself, and third-party custom indexing services can also be used.
Several types of big data sources:
1, purchased by exchanges, such as the four major domestic futures exchanges and gold exchanges.
2, foreign intermediate data manufacturers to buy, such as Morningstar, IDC, etc.
3. The standard data of Shanghai Stock Exchange and Shenzhen Stock Exchange are processed by ourselves.
4. News crawler crawls, and the depth information is collected by Nanjing News Department.
5. Third-party information purchase, such as various industry websites and data brokers.
6. The data source actively asks for cooperation. For example, a coal industry index in Shaanxi took the initiative to seek cooperation with us.
7.wind produces by itself, such as several industry indexes cooperated with CSI, wind commodity category index, wind commodity variety index, etc.