First of all, different types of funds have different returns. If you buy 10 yuan's money fund or bond fund, there is basically no income and there will be no loss of principal. There is little possibility of appreciation before money funds or bond funds, and bond funds are subject to handling fees. If you hold it for a few days, you will lose the principal after deducting the handling fee.
Then, 10 yuan may gain a little from buying equity funds, but the gains will not be particularly large. When the stock fund market is bad, if it falls, it may also lose your principal, but generally it won't lose much, maybe just a few cents. Because your principal is small, the benefits and risks are relatively small.
The second is redemption, and stock funds also have handling fees. If you hold them for a short time, you may lose the principal if you don't get any income.
In fact, if you want to buy a fund to make money and can bear certain risks, I suggest that you invest 10 yuan stock fund every week, 10 yuan is not too much. With the money for a cup of tea, invest in 10 yuan every week. If you persist for a long time, many a mickle makes a mickle. Fixed investment funds can spread risks.
Although stock funds have high risks and high returns, they have a higher chance of making money. If you buy a money fund, it is basically difficult to make money if the principal is small.