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Nov 15, 2023 • Press Releases

DTCC’s ALERT Surpasses 15 Million Standing Settlement Instructions

DTCC launches an ALERT API suite, providing new way for industry to request and receive SSI and market availability data.

New York/London/Hong Kong/Singapore/Sydney, November 15, 2023 ‒ DTCC, the premier post-trade market infrastructure for the global financial services industry, today announced that DTCC ALERT, the industry’s largest online global database for the maintenance and communication of account and standing settlement instructions (SSIs), has reached a key milestone with over 15 million SSIs, including three million cash SSIs, now included in the service— a 50% increase since 2021. This growth comes at a critical time, as the U.S. moves to a T+1 settlement cycle in May 2024. Accurate, automated SSIs are key to the facilitation of accelerated settlement, as leveraging golden copy data limits discrepancies that could potentially cause failed or delayed trades.

In addition, DTCC has launched an ALERT API suite, providing market participants with an alternate way to request and receive SSI and market availability data in real time. Before the ALERT APIs, this data was traditionally accessed via web user interfaces. DTCC’s ALERT API suite includes two APIs:

  • Real Time Settlement, enabling investment managers and their outsourcers to retrieve their own specific market, security and depository SSI for a specific account in real time, as well their broker/dealers' specific market, security and depository SSI.
  • Ready to Settle, in support of client onboarding, enabling investment managers and their outsourcers to obtain a list of available market, security, depository (CSM) combinations for the investment manager account. Third parties can also pull this information on behalf of investment managers per account as well as on behalf of a broker dealers' permissioned investment manager account.

“As the industry prepares for the implementation of the T+1 settlement cycle in the U.S., we are pleased to see growing momentum in the adoption of ALERT as firms take advantage of the benefits of leveraging automated SSI data,” said Bob Stewart, DTCC Executive Director, Institutional Trade Processing. “We are also pleased to launch the ALERT API suite, providing flexibility and a new way for users to access critical SSI data. ALERT, and its automated SSI capabilities, is a key enabler of accelerated settlement cycles and reduced trade fails, and we look forward to continuing to enhance the service to meet evolving client needs.”

For over 30 years, ALERT has brought risk mitigation and increased post-trade efficiency to its users, with 53% of SSIs within the platform managed directly by source providers, such as global custodians and prime brokers. Through ALERT’s unique workflows, custodian banks and prime brokers maintain SSIs on behalf of their clients, further automating the maintenance of timely and reliable SSIs from source providers. ALERT users may also subscribe to SSI enrichment workflows for their use of CTM, DTCC’s automated central matching platform.

Today, the ALERT service includes a global community of 3,500 organizations.

About DTCC

With 50 years of experience, DTCC is the premier post-trade market infrastructure for the global financial services industry. From 20 locations around the world, DTCC, through its subsidiaries, automates, centralizes, and standardizes the processing of financial transactions, mitigating risk, increasing transparency, enhancing performance and driving efficiency for thousands of broker/dealers, custodian banks and asset managers. Industry owned and governed, the firm innovates purposefully, simplifying the complexities of clearing, settlement, asset servicing, transaction processing, trade reporting and data services across asset classes and bringing increased security, enhanced resilience and soundness to financial markets. In 2022, DTCC’s subsidiaries processed securities transactions valued at U.S. $2.5 quadrillion and its depository subsidiary provided custody and asset servicing for securities issues from over 150 countries and territories valued at U.S. $72 trillion. DTCC’s Global Trade Repository service, through locally registered, licensed, or approved trade repositories, processes more than 17.5 billion messages annually. To learn more, please visit us at or connect with us on LinkedIn, X, YouTube, Facebook, and Instagram.

Press Contacts



Madiha Arsalan

+1 813 470 2217

[email protected]


Eric Hazard, Vested
+1 917 765 8720
[email protected] 


Ana Reynaud
+44 (0) 7866 202 656
[email protected]


Corinne Lee, DTCC
+65 6805 8033
[email protected]


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