South CSI refers to the etf connection C of the securities company as a connection fund, and it is a class C share among the connection funds. The connection fund is a type of fund, and its tracking object is etf funds, aiming at obtaining the same income as etf funds.

Linked funds are traded in the OTC market (which can be purchased by all sales platforms), and the transaction is made according to the net value of the fund. Although the net value changes in real time on the trading day, the final transaction is made according to the closing net value, that is, there is only one transaction price every day.