Optional means that investors can choose the index related to the industry they care about from the first-class index of China securities industry according to their own needs. For example, if investors are interested in the financial industry, they can pay attention to financial indexes such as CSI Bank Index and CSI Securities Index, so as to judge the overall trend of the financial industry and make relevant investments.
Providing investors with an optional first-class index of CSI industry can not only help investors to invest more accurately, but also help promote the development of related industries. Through the reflection of industry index, we can more accurately evaluate the operation and development of industry enterprises and help to provide better decision-making basis. To sum up, the selectivity of CSI industry-level index is of great significance to investors and industry development.