1. The reason why the money fund's income ranking is different every day is because the investment direction of the money fund is different, which means that the income is changing, and the change of income naturally leads to the change of ranking.

2. Monetary fund is an open-end fund that collects idle funds from the society, is operated by the fund manager and kept by the fund custodian. Different from other types of open-end funds, money market instruments that specialize in investing in low risks have the characteristics of high security, high liquidity, stable income and "quasi-savings".

Due to the emergence of digital currency, a new type of money fund-virtual money fund has appeared in the field of money fund. Also known as the digital currency Fund.