If investors buy before 15: 00 on the same day, the transaction price is the net value announced that night. Therefore, the rise and fall of the fund on that day is related to him, that is, when the net value of the fund falls on that day, the cost price of its purchase is relatively low, and vice versa; If the investor buys after 15: 00 on the same day and the transaction price is the net value announced in the evening of the next trading day, then the rise and fall of the fund on that day has nothing to do with him.

At the same time, if investors think that the fund will continue to rise in the future, they can consider buying the fund before 15: 00 on the same day. For on-site funds, after investors buy the fund, the fund rises on the same day, indicating that investors are profitable; conversely, the fund falls, indicating that investors are losing money.