It is not recommended to buy a fund in full position at the bottom, which is risky. When an investor takes a full position, if the fund rises, it may gain the most. If the fund continues to fall and hits a new low, there will be no extra funds to cover the position, which will make investors suffer huge losses and even be deeply trapped.

when investors are at the bottom of the fund, they can choose to buy some funds online, and then slowly increase their positions when the fund shows a rebound trend. At the same time, they should set the position of taking profit and stopping loss to control the risk within a certain range.