1. You can't buy the index directly by buying a fund that invests in the Hang Seng Index. By buying some passive funds that invest in Hang Seng Index, buying funds is the most convenient and worry-free way. For example, domestic funds investing in Hang Seng Index include Harvest Hang Seng Index and Huitianfu Hang Seng Index Grading Fund.

2. When purchasing the Hang Seng Index contract through the futures market, it is necessary to distinguish the authenticity of the platform when choosing the futures platform. Regular Hang Seng Index futures traders will have a futures trading license at the Hong Kong Securities Regulatory Commission and settle in foreign currency.