Both will do. If the investor has already made a profit, he can sell it. If investors haven't, they can continue to hold it. It should be noted that funds closed during the Spring Festival have no income (except money funds and bond funds), and it takes several working days for funds to trade T+ 1.

202 1 Spring Festival closing time: February 1 1 Thursday-February 1 Wednesday for 7 days, February 1.