First of all, the money fund is valued by amortized cost method, so theoretically, when there is no floating profit or floating loss caused by large redemption, the daily rate of return of the money fund is basically stable and its performance is strong. Investors can know whether the fund manager has mature fund operation mechanism and investment management experience by observing the long-term performance of the money fund in the past. Secondly, choosing a large-scale fund, the advantages of a large-scale product outweigh the disadvantages for the money fund. As a short-term liquidity management tool for investors, money funds will be frequently purchased and redeemed. Large cargo bases can cope with daily redemption by holding relatively little cash.