Depository Trust & Clearing Corporation (DTCC) Established in 1999, the DTCC is a holding company consisting of 5 clearing corporations and 1 depository, making it the world's largest financial services corporation dealing in post trade transactions. Investopedia Says: Owned by its principal users, the DTCC's function is to integrate the NSCC and DTC, streamlining clearing and depository transactions in attempts to reduce cost and increase capital efficiency. Related Terms: Chill Clearing Clearing House Depository Trust Company - DTC Failure To Deliver National Securities Clearing Corporation - NSCC |