Harvest CSI 300 Index Fund has the highest fitting degree and the lowest cost, which is very suitable for personal financial management. It is recommended to hold it for a long time. Funds can be fixed on the websites of many banks or harvest fund companies. Generally, you don't have your own fixed investment. I suggest not to operate your own fixed investment-you can't overcome fear and greed, and you can't grasp the trend of stock market operation. It is best for fund companies to take out fixed money to buy funds on a regular basis. If they hold them for a long time, there will be gains. If you are very young, you'd better invest for 20 years or as your supplementary pension, which will be a considerable income of more than one million yuan. At the time of 6000 points in the stock market, the author made a profit by closing stocks and funds, but started the fixed investment of funds, and has now made a profit of 15%.