Futures investors need to connect to the exchange through the counter system of futures companies. Generally, futures companies have multiple counter systems, which are divided into chairman system and deputy (second) seat system. It is a set of counter system developed by the subsidiary of the previous period, and it is the mainstream counter system in the futures industry at present.

The functions of the chairman are comprehensive. Apart from the basic trading functions, there are also functions such as settlement, deposit and withdrawal. Ordinary investors use CTP chairman.

The second seat (the second seat) basically only has the functions of placing orders, reporting orders and withdrawing orders. Its advantage is that the transaction delay will be relatively low, and it is more suitable for investors who require higher transaction speed to choose CTP. However, because there is no deposit and withdrawal, settlement and other functions. Compared with CTP chairman, it is not so convenient.