If the fund rises by one point, it means that the fund income rises by1%; If the fund falls by one point, it means that the fund income will fall by 1%. If investors buy index funds, a point also means that the relevant index rises or falls by a point. For example, the Shanghai Composite Index changed from 3,000 points to 2,999 points, that is, it fell by one point.

Index funds are related to market indexes, and the investment goal of index funds is to obtain the rate of return of the underlying index. From this perspective, an investment index fund is an investment index. Choosing the right index is the key to indexed investment.

Traditional indexes are mainly single market indexes and cross-market indexes. Single market indexes include SSE 50 Index, SSE 180 Index, SZSE 100 Index, etc. These indexes mainly come from Shanghai market or Shenzhen market.

Cross-market indexes include Shanghai and Shenzhen 300 Index, CSI 500 Index and CSI 100 Index. The constituent stocks include the representative stocks of Shanghai Stock Exchange and Shenzhen Stock Exchange, which reflects the general situation of the stock price changes and operation of China's overall stock market.

Most index funds are investment tools that track the index and copy the index returns. Compared with active investment funds, index funds not only have transparent management, but also have cost advantages. For long-term investors, it is very important to choose a mainstream index.