The Fortress CSD (Central Securities Depository) System by Securities Trading Technology (STT) provides a robust, fully automated settlement system that enables the electronic management and settlement of all securities traded on an exchange or Over the Counter (OTC). In Keeping with international ISO standards, business conduct policies, and regulatory requirements, Fortress CSD Solution helps effectively manage multiple business opportunities including Asset Servicing, Registry, Depository and Settlement. Fortress CSD was designed specifically and constructed for low cost-of-ownership and rapid delivery, the system is adaptable to numerous business models and ever-changing market conditions. Supporting any asset class, the Fortress CSD system can be deployed on an independent basis or integrated into an already existing clearing environment. The solution effortlessly connects to third-party trading and clearing solutions using standard protocols, as well as Real time Gross settlement systems via SWIFT and is tightly integrated with other STT market substructure systems. , the Fortress CSD system interfaces with external payment systems to ensure delivery versus payment for all transactions to be settled.