Brokers are market intermediaries, and their main function is to intermediate securities. They are the only institutions that are legally authorized to trade securities. To invest in the market, investors should contact one of the brokers associated with the exchange.
In order for a broker to be an intermediary in the market, it must meet a number of requirements of the Securities Market Law (Ley de Mercados de Valores) as well as the Statutes and Regulations of Operations (Estatutos y Reglamentos de Operaciones) of the exchange.
Additionally they must:
Promote the launch of new issuers in the market, introduce issuers to the public and participate directly in securities placements.
Guide investors, issuers and the general public on an ongoing basis about the economic situation of the market, in order to facilitate decision-making.