Abstract: A method and system is provided for automated trading of fixed income securities which enables institutional investors, broker dealers and others, to transact directly and anonymously for the purpose of trading investment grade, high yield corporate bonds, municipal bonds or other fixed income securities. A financial institution acting as a Fixed Income Securities system sponsor can act as counterparty to transactions, from trade execution through settlement, and can also serve as a credit intermediary. Computer systems are utilized in conjunction with an electronic communications network to facilitate such fixed income security trading activities. Software routines can direct a trader to various fixed income securities available according to specific criteria put forth by the trader. Software routines can also provide information and services related to the automated trading of fixed income securities.