The fund is closely related to the rise and fall of the market, but if it is a fixed investment, the bank will deduct the money on the date you specify every month, instead of deducting the money according to the rise and fall of the market. The fixed investment of the fund is a long-term investment, which can digest the risk of the rise and fall of the market index and obtain better returns. Fixed investment is a fool's investment, regardless of the market and index, you can invest at any time and need long-term investment. The longer the investment time, the higher the income. In America, fixed investment is a very common family.