The monthly investment in 3 yuan will be divided into three parts, that is, each 1 yuan, which is unnecessary. It is better for 3 yuan to invest in one part, and at most two parts. In addition, there are very few funds that invest in 1 yuan every month, and it is not easy to choose.

it's better to choose a fund with back-end charges for fixed investment, so that there is no handling fee when you buy it every month, but you have to hold it for the time specified by the fund company (ranging from 3 to 1 years) before redeeming it, and there is no handling fee.

there are back-ends: Dacheng 3 (index fund, held for more than three years), Bank of Communications is stable, held for more than five years, most funds of Guangfa Fund Company (stock type, held for more than five years), most funds of Huaan Fund Company (held for more than five years) and so on. Of course, there are many more, you can go to the fund online to find out.