Private placement fund refers to a fund raised privately or directly from a specific group. The corresponding Public Offering of Fund is Public Offering of Fund. People usually say that funds are mainly mutual funds, that is, securities investment funds.

There are three main analysis methods of securities investment: basic analysis, technical analysis and evolution analysis, in which the basic analysis is mainly applied to the selection of investment objects, while the technical analysis and evolution analysis are mainly applied to the temporal and spatial judgment of specific investment operations as an important supplement to improve the effectiveness and reliability of investment analysis. Private equity funds in a broad sense include private equity funds in addition to securities investment funds.

In China's financial market, "private fund" or "underground fund" is usually a collective investment that is privately raised by specific investors, as opposed to the securities investment fund that is supervised by the competent department of China government and publicly issues beneficiary certificates to unspecified investors. There are basically two ways, one is a contractual collective investment fund based on signing the entrusted investment contract, and the other is a corporate collective investment fund based on * * * contributing shares to establish a joint-stock company.