Yes, the trading day of the fund must be a working day, but the working day is not necessarily a trading day. There are cases of rest and overtime work on legal holidays, which are working days, not trading days, and funds will only generate income on trading days (except monetary funds and bond funds, which will generate income every day).

Fund trading hours: Monday to Friday, 9: 30am-1:30am, afternoon13: 00pm-15: 00pm, and trading is not allowed on legal holidays.