Money funds only invest in the money market, such as short-term government bonds, repurchase, central bank bills, bank deposits, etc. And there is basically no risk. Its liquidity is second only to bank demand deposits, and its income is calculated every day. Generally, the one-month income is carried forward to the fund share, and the income is slightly higher than the one-year time deposit, and the interest is tax-free. The principal of the Monetary Fund is relatively safe, with an expected annual rate of return of 3.9%. It is suitable for liquid investment tools and a substitute for savings.