According to different investment objects, securities investment funds can be divided into: stock funds, bond funds, money market funds, hybrid funds and so on. If more than 60% of the fund's assets are invested in stocks, it is a stock fund; If more than 80% of the fund assets are invested in bonds, it is a bond fund; Money market funds that only invest in money market instruments; If it invests in stocks, bonds and money market instruments, and the ratio of stock investment to bond investment does not meet the requirements of bonds and stock funds, it is a mixed fund. From the perspective of investment risks, the risks brought by several funds to investors are different. Among them, equity funds have the highest risk, money market funds have the lowest risk and bond funds have the middle risk. Due to different investment styles and strategies, the risks of the same type of investment funds will be different. For example, stock funds can be divided into: balanced, stable, exponential, growth and growth according to the degree of risk. Of course, the greater the risk, the higher the rate of return; The risk is small, and the income is correspondingly lower. Introduction to open-end fund transactions: Before purchasing funds, investors need to carefully read the fund-related documents such as prospectus, fund contract, account opening procedures, trading rules, etc. All fund sales outlets should have the above documents for investors to consult at any time. Individual investors are required to carry the debit card of the agent bank and valid identification documents (ID card, military officer's card or armed police card), and institutional investors are required to carry the original business license, organization code certificate or registration certificate, as well as the official seal copy of the above documents, power of attorney, agent's ID card and copy. With the preparation materials, the customer goes to the bank counter to fill in the application form for fund business, and then receives the business receipt. Individual investors also receive fund trading cards, and they can go to the counter to receive business confirmation two days after handling fund business. Units or individuals can engage in fund subscription and redemption after receiving business confirmation. ◆ How to purchase After the account opening preparation is completed, citizens can choose the time to purchase the fund. Individual investors can bring the debit card and fund trading card of the correspondent bank to the counter of the agency outlet to fill in the Application Form for Fund Trading (institutional investors need to affix the reserved seal), and must submit the application before the day of subscription 15: 00, and the counter will accept and receive the receipt of fund business. Two days after handling the fund business, investors can print the business confirmation at the counter.