Hang Seng etf Link C is a QDII index fund. QDII refers to qualified domestic institutional investors. It is a securities investment fund established in a country and approved by the relevant departments of that country to engage in securities business such as stocks and bonds in overseas securities markets.

Index fund is a fund that invests in an index way, and its goal is to obtain a return on investment roughly equivalent to the market average.

ETF-linked fund, also known as shadow fund and replication fund, refers to an open-end fund that invests most of the fund assets in ETFs that track the same underlying index, closely tracks the performance of the underlying index, pursues the minimization of tracking deviation and tracking error, adopts an open operation mode, and can be purchased and redeemed off-site.