The exchange allows two classes of members: "brokers" and "traders". As the members of the exchange, brokers and traders have direct access to the market. Traders can trade only for their own accounts. Brokers can also represent the public in the market by working the transactions for their clients. Of course, brokers can trade for their own accounts. The limited membership policy is applied for brokers only. And the limited number of brokers is currently twenty. The trader-type membership is always open.