On the floor is the stock market, also known as the secondary market. Off-exchange market is understood as the stock exchange market, that is, the agency sales of banks and securities companies, and the direct sales of fund companies, that is, the familiar open-end fund sales channels. Closed-end funds and ETF funds can only be purchased in the market (for large investors, ETFs can be purchased in the "primary" market), that is, they can only be purchased in the stock market. Other open-end funds can be purchased off-site, which is a well-known way, in which LOF funds can be purchased on-site.
Andy Lau's detailed information