In addition, the fixed investment of the fund is a long-term financial management. Although the investment in each period is not much, after a long period of compound interest fermentation, considerable profits can be generated. Similarly, although there is little difference between the back-end fixed investment and the front-end fixed investment in the short term, there can be obvious differences after long-term cumulative amplification. Financial planners remind investors that back-end fees and redemption fees are different. Back-end charges, like front-end charges, are all a kind of subscription fees, but they are not paid when buying funds, but when selling funds. Therefore, if you buy a fund with a back-end fee, then when you sell the fund, it is not only necessary, but also the back-end fee puts forward certain requirements for the fund company's financial strength. Usually, large fund companies with good performance, large scale and outstanding service consciousness have a large number of back-end fee-based funds. At present, among 58 domestic fund companies, only 27 funds have launched back-end fee-based funds.