HQLAx

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HQLAx refers to the distributed-ledger collateral-mobilization service through which Eurex Clearing allows clearing members to post securities as margin by transferring digital records of ownership on the HQLAx platform rather than physically relocating the underlying securities between custodians.

History

The service traces back to the joint venture between HQLAx, a financial technology firm built on distributed ledger technology, and Deutsche Börse Group, the parent of Eurex. The two developed a model to make high-quality liquid assets, or HQLA, easier to move as collateral, addressing heightened demand for such assets under Basel III bank capital rules.

The first live transactions on the Deutsche Börse-HQLAx platform occurred in December 2019, when Commerzbank, Credit Suisse, and UBS executed collateral swaps recorded on a digital collateral registry built on R3's Corda blockchain. Ownership of baskets of German government bond and corporate securities changed hands without the securities leaving Clearstream Banking, the custodian.

\In November 2024, HQLAx, Clearstream, and Eurex Repo settled the first delivery-versus-payment repo trades in production on the platform as part of European Central Bank wholesale-settlement trials, with Goldman Sachs borrowing cash while delivering collateral through the platform. Clearstream coordinated settlement using its D7 digital securities platform alongside the Bundesbank's Trigger solution for cash settlement in real-time gross settlement.

Eurex Clearing received a no-action letter from Germany's financial regulator, BaFin, in January 2025, clearing the way for the margin-collateral service, and the law firm Linklaters advised on the connection to the HQLAx service with a launch planned for the second quarter of 2025.

The service went live on 30 June 2025, and Eurex described itself as the first central counterparty globally to launch a DLT-enabled collateral-mobilization service in production. In the inaugural live transaction, J.P. Morgan acted as clearing member on behalf of the Dutch pension fund PGGM to mobilize securities and transfer them to Clearstream as margin collateral for Eurex Clearing.

Operating model and market structure

The model lets a clearing member keep securities immobilized at its custodian of choice while a corresponding digital collateral record is registered on the HQLAx platform, which the member can then transfer near-instantly to Clearstream Banking Luxembourg, acting as sub-custodian for Eurex Clearing. This removes the conventional step of physically shifting securities between custodians, a process constrained to business hours and subject to settlement delays.

Within the architecture, Clearstream International functions as a trusted third party that holds baskets of securities on behalf of participants, while the digital collateral record layer records ownership on the ledger and enables atomic changes of ownership. The service supports both pledge and title-transfer legal regimes and is envisaged for margin allocation of clearing members' own or clients' exposures to Eurex Clearing.

Key users

Participants include clearing banks acting as members, custody and tri-party providers, and end investors accessing the service through their clearing members. Reporting on the platform's integrations names Clearstream, Euroclear, BNY, BNP Paribas, Citi, and J.P. Morgan among connected providers, while asset managers and pension funds such as PGGM feature among the end clients whose margin obligations are met, with the service oriented toward central counterparties and their members.

Risk management

The service is directed at reducing operational friction and timing risk in the posting of margin collateral, particularly during late-day or time-critical windows when conventional custodian transfers cannot settle. Reporting noted that Eurex held roughly $70 billion in initial margin at the end of 2024 and that near-instant digital mobilization is intended to address the delays inherent in moving securities across fragmented settlement systems.

See Also

• Eurex
• central counterparties
• asset managers