The numbers starting with 515 are not stocks but funds.

Fund trading rules: There are time limits for buying and selling funds. There is no trading on weekends and holidays. From Monday to Friday, trading hours are 9:30-11:30 am and 1:00-3:00 pm.

There is a difference between buying and selling before and after 3:00 p.m. Fund purchases or redemptions before 3:00 p.m. on the trading day will be counted as transactions on that day, and purchases after 3:00 p.m. will be counted as transactions on the next day.