It is more appropriate to buy a fixed investment fund every Thursday, because historically, the probability of falling on Thursday is greater than the probability of rising, and the fixed investment on Thursday will make the cost of investors lower. The lower the cost, the smaller the risk that investors take, and the greater the probability of earning in the future. However, the fixed investment of the fund can be carried out at any time without timing. Fixed investment funds do not have the most suitable time. As long as the fixed investment reaches the expected income of investors, it can be sold. Investors can set their own expected returns, such as 20% or 30%. It is best for investors to sell the fund a few minutes before the close, because the fund trades according to the net value at the close. Before closing, you can know the rise and fall of the fund on that day by looking at the estimated net value of the fund, and it is best to sell it when the fund rises.

1. Fund refers to the funds or special allocations reserved for starting, maintaining or developing a certain cause. Funds must be used for specified purposes and accounted for separately. A variety of purposes constitute a fund of various needs. As different investment funds, there are usually people who specialize in it and have relevant management methods. Securities investment funds are called * * * mutual funds in the United States and unit trust funds in Britain and Hong Kong. It refers to a collective investment method in which funds are raised through public offering of fund shares, managed by fund trustees and managed and used by fund managers, and invested in the form of portfolio.

2. Securities investment funds, or collective investment plans and investment trusts, refer to the pooling of funds of a group of people and the centralized management of investment by managers in order to create higher investment returns. It is an investment tool that concentrates the funds scattered in the hands of investors and entrusts professional investment institutions to manage and use them according to the principle of * * * sharing benefits and * * taking risks. The main purpose of setting up such funds is to make profits by investing in the market. The securities they operate include stocks, bonds, foreign exchange, currency, financial derivatives and other financial projects. Pay attention to the investment targets and relevant regulations of different funds.