DTCC Takes Core Clearing Infrastructure to Public Cloud in Landmark Migration

The Depository Trust & Clearing Corporation (DTCC) is migrating core clearance and settlement systems to a public cloud infrastructure for the first time, in a move that marks one of the most significant architectural shifts in US post-trade infrastructure since the organisation’s formation.

In parallel, DTCC is expanding its partnership with Microsoft to build out its digital asset platforms on Azure. Microsoft will support all DTCC Digital Assets initiatives, including plans to migrate Digital Launchpad to Azure by the end of 2026. The dual-cloud approach segments DTCC’s modernisation strategy by function: AWS for core market infrastructure, Azure for the digital assets business.

Structural shift, not incremental upgrade

DTCC occupies a unique position in global capital markets. As the central post-trade infrastructure for US equities, fixed income and government securities, its systems process the vast majority of securities transactions in the United States. Moving any part of that infrastructure to a public cloud is not an incremental technology upgrade, it is a structural change to how systemically important financial market infrastructure is operated, governed and resilience-tested.

The timing also matters. As we reported in our recent feature on post-trade infrastructure modernisation, the post-trade layer is under structural pressure from multiple directions simultaneously: settlement compression to T+1 (with Europe targeting October 2027), the push toward extended and continuous trading hours, cross-asset convergence, and the tokenisation of real-world assets. DTCC’s cloud migration should be viewed in that context. Not as a standalone technology initiative, but as part of a broader industry re-platforming that is transforming post-trade from a back-office utility into a strategic competitive component.

Core infrastructure modernisation

DTCC’s relationship with AWS is not new. The firm has used AWS for non-core systems for more than a decade. What changes now is the scope. The migration brings clearing agency applications into the public cloud for the first time, with stated goals of improving fault isolation, strengthening contingency and recovery capabilities, and enabling more rapid provisioning of infrastructure in response to market volatility.

“Expanding our use of the public cloud is central to how we are strengthening the resiliency, security and scalability of DTCC’s infrastructure,” says Lynn Bishop, DTCC Managing Director and Chief Information Officer.

The announcement suggests a phased approach rather than a wholesale lift-and-shift, but what remains unspecified is the timeline, the sequencing of which applications move first, and how participant connectivity and integration will be managed through the transition. Those details will matter considerably to the clearing members and market participants whose own infrastructure connects to DTCC’s systems.

The AI dimension is also notable. DTCC says it is using AWS’s AI tooling to enhance developer productivity and software development cycles, and is piloting AWS enterprise agents across its software development lifecycle. AWS references its Kiro agentic coding service as part of the engagement. The deployment of AI tools within the development pipeline of systemically important infrastructure is an emerging trend worth monitoring, particularly as the industry debates appropriate governance frameworks for AI in production environments.

Digital assets and the Azure expansion

The Microsoft partnership covers the full scope of DTCC Digital Assets, extending from an existing engagement that saw DTCC re-platform its ComposerX service and host its ComposerX Capital Markets Platform and Factory solutions on Azure. All future DTCC Digital Assets initiatives will now be built on Azure, including the planned migration of Digital Launchpad by end of 2026.

The decision to separate core market infrastructure (AWS) from digital asset platforms (Azure) is a deliberate architectural choice. It allows DTCC to optimise each cloud relationship for different operational profiles: the core clearing business prioritises resilience, fault tolerance and regulatory governance; the digital assets business requires the flexibility to scale dynamically, support emerging use cases and evolve alongside rapidly changing technologies.

This is consistent with the broader trajectory observed across the post-trade landscape, where digital asset infrastructure is increasingly being built alongside – rather than on top of – traditional post-trade systems. As DTCC’s Val Wotton told TradingTech Insight recently, tokenisation “enables real-time, 24/7 movement of high-quality liquid assets” when combined with the governance frameworks that underpin today’s markets. The Azure expansion positions DTCC to deliver on that vision with enterprise-grade security and global scale.

Execution risk and open questions

The announcement is deliberately broad on detail, as strategic infrastructure commitments of this kind tend to be. The phasing and timeline for core application migration, the operational impact on clearing members – connectivity models, testing requirements, integration points – and the cost implications will all become clearer as the programme progresses. A key question for market participants is whether the efficiency and resilience gains translate into tangible benefits at the member level, or whether they primarily serve DTCC’s own operational objectives.

The resilience dimension will attract particular scrutiny. DTCC references improved fault isolation and contingency capabilities, and the SEC’s No Objection notice suggests the regulator is satisfied with the governance framework. But market confidence will ultimately rest on demonstrated performance, how cloud-hosted systemically important infrastructure behaves under stress, and how the SEC’s ongoing oversight adapts to a fundamentally different operating model.

For other FMIs and CCPs, the SEC’s willingness to approve the migration is an important precedent. But it is the execution that will determine whether this becomes a template for the industry. How DTCC manages the transition, maintains service continuity and demonstrates that public cloud meets the resilience standards expected of critical market infrastructure will be watched as closely as the announcement itself.