Index fund, as its name implies, is a fund that invests in index stocks, that is, by buying some or all of the stocks contained in an index, the investment portfolio of index fund is constructed, with the purpose of making the change trend of this investment portfolio consistent with the index, so as to obtain roughly the same rate of return as the index. Index fund means that the fund operates according to the selected index (for example, standard &; Poole 500 index), Japan's Nikkei 225 index, Taiwan's weighted stock price index, etc. ), choose the same asset allocation model to invest in order to obtain the income synchronized with the market.

Fixed investment is the abbreviation of fixed-term investment fund, which refers to investing a fixed amount (such as 500 yuan) in a designated open-end fund at a fixed time (such as the 8th of each month), similar to the bank's deposit and withdrawal method. This kind of investment can average the cost and spread the risk, which is more suitable for long-term investment.