Off-exchange funds can be withdrawn when redeemed, and on-exchange funds can be withdrawn when sold. Straight flush supports on-site funds and off-site funds. OTC funds are funds sold on the flush platform (OTC market transactions), while OTC funds are funds traded on the stock exchange.

OTC funds and OTC funds are both T+ 1 transactions. OTC funds are traded according to their net value, and the shares are confirmed on the second trading day of the day. OTC funds are traded at the real-time market price and can only be sold on the second trading day of the day.