Difference 1: the quantity you buy is different. The fixed investment of the fund is generally divided into intelligent fixed investment and ordinary fixed investment. The purchase amount of ordinary fixed investment is the same every month. Intelligent fixed investment is calculated by the machine according to the rise and fall of the market, and it is purchased around a benchmark amount.
If you buy it yourself, then feel free. You can buy as much as you want, and you can buy as much as you want. Maybe the buyer will decide the purchase amount according to how much cash he has at that time.
Second, the fixed investment of the fund should be purchased at a fixed time. Whether the market goes up or down, it can be fixed once every three weeks every month. Buy it yourself, that is, the date is not fixed, and you can buy it whenever you want during the trading day.
The third difference is that the foundation makes a fixed investment. If it is set to buy in a certain channel, such as Alipay, Tian Tian Fund and WeChat, then the channel for each purchase is the same. If you buy it yourself, you can buy it at Alipay this time, on WeChat next time, and on the fund company's APP next time. The purchase channel will change at any time.