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:
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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.
Log in, if necessary, to access CMU RTTM resources.
CMU RTTM Testing Guidelines and Case Scenarios
Upcoming Release: CMU RTTM CSV Reports
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
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
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
DTCC Transformation Insight Series: Equities Clearing Readiness Check-in
Transformation Integration Series
DTCC Transformation Integration: Clearing Defect Log & Testing Office Hours