According to whether the fund units can be increased or redeemed, investment funds can be divided into open-end funds and closed-end funds. ② According to different organizational forms, investment funds can be divided into corporate investment funds and contractual investment funds. (3) According to the different investment risks and returns, investment funds can be divided into growth investment funds, income investment funds and balanced investment funds. According to different investors, investment funds can be divided into stock funds, bond funds, money market funds, futures funds, option funds, index funds and warrant funds. ⑤ According to the types of investment currencies, investment funds can be divided into dollar funds, yen funds and euro funds. ⑥ Investment funds can be divided into international funds, overseas funds, domestic funds, national funds and regional funds according to different sources and regions. ⑦ Among stock funds, according to the scale of investment objects, they can be divided into large-cap stock funds, medium-cap stock funds and small-cap stock funds. According to different investment methods, it can be divided into active investment funds and passive investment funds.