CMU RTTM Release

September 04, 2026

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CMU RTTM Transformation

DTCC is leading a multi-year transformation initiative to deliver innovative, modernized, modular systems. This initiative enhances core capabilities, simplifies workflows, and supports seamless straight-through processing.

To identify the operational impact, understand timelines and sequencing, and align internal planning, review the following DTCC Transformation Resources:

CMU RTTM Client Regression Testing

PSE (Client Testing): June 29 - Oct 2, 2026
Optional Production Parallel: October 2 − 30, 2026
Production Release: October 30, 2026

As part of the CMU RTTM^®Transformation initiative, all existing PDF reports will be decommissioned and no longer available as of October 30, 2026. Only the new standardized, structured, CSV-formatted reports will be available. See important notices CMU223-26.

Click each tab to prepare, test, and sign off on CMU RTTM Client Regression testing in the PSE (Client Test) environment.

To prepare for the current CMU RTTM Client Regression testing, complete the following activities and tests in the PSE (Client Test) environment:

Compare existing CMU RTTM print image reports with the new CSV reports to confirm data continuity.
Verify retrieval through the current DTCC connectivity platform. No connectivity changes are required.
Review known CMU RTTM issues, defects, and available workarounds to help you prepare for testing activities. There are no client-reported issues or defects at this time.

CMU RTTM Issues and Defects Log

New October 14, 2026

Log in, if necessary, to access CMU RTTM resources.

CMU RTTM Testing Guidelines and Case Scenarios

June 04, 2026

Client Testing Release: CMU RTTM CSV Reports

June 15, 2026

By October 2, 2026, all members are encouraged to complete Client Regression testing and confirm data continuity for existing CMU RTTM print image reports. Submit your attestation by completing the CMU Testing Attestation form. If you have questions or need assistance, email This email address is being protected from spambots. You need JavaScript enabled to view it..

If no attestation or issue notification is received by October 2, 2026, DTCC assumes that your firm has successfully completed testing, validated data continuity, and is operationally ready for implementation with no outstanding issues.

If your firm identifies any issues, discrepancies, or concerns during testing, you must provide a brief description of the issues to This email address is being protected from spambots. You need JavaScript enabled to view it. by October 2, 2026.

DTCC is available to support your testing efforts.

Transformation Insight Series

Gain insight into upcoming CMU key milestones and client readiness activities to help your firm prepare for the Transformation initiative changes.

DTCC Transformation Insight Series: Equities Clearing Testing

June 16, 2026

DTCC Transformation Insight Series: Equities Clearing Readiness Check-in

September 15, 2026

Transformation Integration Series