The TTCD is committed to the development of the securities market of Trinidad and Tobago. The Depository provides efficient, safe and prompt clearing and settlement of securities transactions for participants by employing an automated data processing book entry system.

The TTCD was established by the Trinidad and Tobago Stock Exchange Limited to facilitate the safekeeping of security certificates and to enable investors buying and selling shares on the Exchange to settle such transactions through a computerized book entry system. This allows for the change of ownership of shares electronically between buyers and sellers without the need for the exchange of physical certificates.