1. Rules for fund managers to operate fund transactions: Every fund will have a prospectus and a fund contract at the beginning of its establishment, which are documents with specific legal effect and stipulate the investment portfolio of the fund. This is the rule that funds must abide by when buying and selling.

2. The prospectus is a legal document prepared by the fund sponsors and approved by the relevant state departments and provided to investors. The purpose of compiling is to let investors know the details of the fund, so that investors can make a decision on whether to invest in the fund.

3. The fund manager manages funds or other investment plans on behalf of the fund company, and makes appropriate investment decisions on behalf of the members of the company under the general guidelines agreed in advance. He is the soul of fund management, and his ability affects the overall income of the fund. Fund managers usually manage huge funds, so they have certain influence in the securities market. Fund managers should select suitable investment targets from the research reports provided by the research departments of brokers or companies, and regularly visit listed companies with potential or investment to feel and explore profit opportunities and even avoid potential risks.