1. Fund units can be divided into open-end funds and closed-end funds according to whether they can be added or redeemed. Open-end funds are not listed for trading (it depends on the situation). They are purchased and redeemed through banks, securities firms, and fund companies. The size of the fund does not vary.

Fixed; closed-end funds have a fixed duration and are generally listed and traded on securities exchanges. Investors buy and sell fund units through the secondary market.

2. According to different organizational forms, it can be divided into corporate funds and contract funds. Funds are established by issuing fund shares to establish investment fund companies. They are usually called corporate funds; they are composed of three parties: fund managers, fund custodians and investors.

Established through a fund contract, it is often called a contract fund.

my country's securities investment funds are all contract funds.

3. According to the differences in investment risks and returns, funds can be divided into growth, income and balanced funds.

4. According to different investment objects, they can be divided into stock funds, bond funds, money market funds, futures funds, etc.