Just check the net value of the fund. Generally, the fund net value will not be updated before the stock is closed (from 4: 00 pm to 10 on the trading day of the stock closing time). Investors can also understand the fund's ups and downs on the day by checking the net worth estimate during trading hours.

Take Alipay as an example to check the process: open Alipay software-click Finance-click Funds-select a fund-click Net Value Estimation.