Generally speaking, securities investment fund is a kind of investment and financial management method in which investors hand over funds to fund companies, and professionals of fund companies conduct investment and financial management, take risks and enjoy benefits. Bonds are equivalent to bank time deposits, which may be higher than the interest rate of bank time deposits in the same period, and are generally low-risk and low-yield. Securities investment fund refers to the collective investment mode that funds are raised through public offering of fund shares, managed by fund custodian and managed and operated by fund manager. For the benefit of fund share holders, they invest in securities in the form of portfolio, enjoy the benefits and take risks. At present, from the research paradigm, there are three main methods of securities investment analysis: basic analysis, technical analysis and evolution analysis. In practical application, they have both connections and important differences.

The difference between securities investment funds and stocks and bonds: the status of investors is different. Shareholders are shareholders of the company and have the right to express their opinions on major decisions of the company; The bondholder is the creditor of the bond issuer and has the right to recover the due principal and interest; The fund unit holder is the beneficiary of the fund, which reflects the trust relationship. The degree of risk is different. Generally speaking, the risk of stocks is greater than that of funds. For small and medium-sized investors, due to the limitation of the total amount of disposable assets, they can only directly invest in a few stocks, which violates the investment taboo of "putting all the eggs in one basket". When the stock they invest in falls due to the stock market or the financial situation of the enterprise deteriorates, their capital may be wiped out; The basic principle of the fund is portfolio investment, risk diversification, and investment in securities with different maturities and types in different proportions to minimize risks. Under normal circumstances, the principal of the bond is guaranteed, the income is relatively fixed, and the risk is smaller than that of the fund. The income is different. The returns of funds and stocks are uncertain, while the returns of bonds are certain. In general, the fund's income is higher than that of bonds.

Taking American investment funds as an example, the income growth rate of 25 kinds of funds, such as international investor funds, is 301976 ~1981.6% on average, among which the growth investor funds in the 20th century have the highest rate of 465% and the lowest rate of 243%. However, the interest rates of two kinds of five-year government bonds issued in China 1996 are only 13.06% and 8.8% respectively. Different investment methods. Unlike investors in stocks and bonds, securities investment funds are an indirect way of securities investment. Fund investors no longer directly participate in securities trading and bear investment risks, but experts are specifically responsible for the determination of investment direction and the choice of investment objects.