According to the types of investment currencies, investment funds can be divided into dollar funds, yen funds and euro funds. Dollar funds refer to investment funds that invest in the dollar market; Japanese yen fund refers to an investment fund that invests in the Japanese yen market; Euro fund refers to an investment fund that invests in the euro market. Advantages of the Monetary Fund: 1. Security of principal: Most money market funds have the lowest risk among all kinds of funds, and money fund contracts generally do not guarantee the security of principal, but in fact, due to the nature of funds, the loss of principal of money funds rarely occurs in reality. Generally speaking, money funds are regarded as cash equivalents. 2. Strong liquidity: liquidity can be comparable to demand deposits. The fund is easy to buy and sell, with short time to receive funds and high liquidity. Generally, the funds will arrive in two or three days after redemption. 3. Higher yield: Most money market funds generally have the income level of national debt investment. Money market funds can not only invest in investment tools that ordinary institutions can invest in, such as exchange repurchase, but also enter the inter-bank bond and repurchase market and the central bank bill market for investment. Their annual net rate of return can generally be compared with the one-year time deposit interest rate. The recent annual income is shown in the following table, which is higher than the income level of bank deposits in the same period. Moreover, money market funds can avoid hidden losses. When there is inflation, the real interest rate may be very low or even negative. Money market funds can keep abreast of interest rate changes and inflation trends and obtain stable and high returns. 4. Low investment cost: Generally speaking, there is no handling fee for buying and selling money market funds, and the subscription fee, subscription fee and redemption fee are all zero, so it is very convenient for funds to enter and exit, which not only reduces the investment cost, but also ensures liquidity. For the first subscription/subscription, 1000 yuan, and for the second subscription, 100 yuan will be increased.