BNY and Citadel Securities have started a test involving tokenized U.S. Treasuries. The effort focuses on using blockchain records to move collateral and complete financing steps more rapidly than current systems allow. CoinDesk described the project as an attempt to shorten settlement cycles in Wall Street repurchase and securities lending markets. The test remains in an early phase with limited participants and no public timeline for broader rollout.

The Bank of New York Mellon provides custody and clearing services to large financial institutions and has participated in prior tokenization projects. Citadel Securities operates as a major market maker and provides liquidity across equities, fixed income, and derivatives. Both entities maintain regulated status and existing relationships with central clearing counterparties. Their involvement supplies operational scale and compliance infrastructure that smaller pilots often lack.

Mechanics of the Tokenized Treasury Test

The test creates digital representations of U.S. Treasury securities that can be transferred on a permissioned ledger while the underlying instruments remain in traditional custody. Settlement instructions are executed through smart contracts that update ownership records without requiring full movement of cash or securities through legacy payment systems. Participants can post the tokenized instruments as collateral in repurchase agreements and receive financing on the same day rather than waiting for next-day settlement. The design keeps the legal ownership of the Treasuries unchanged while the token serves as a record-keeping and transfer mechanism.

Integration with existing tri-party repo infrastructure requires coordination between BNY's custody platform and Citadel Securities' trading systems. The tokenized layer records each transfer and generates an immutable audit trail that can be reconciled against central securities depositories. Because the tokens reference actual Treasuries held at BNY, the structure avoids creating new claims on the Federal Reserve or altering primary dealer obligations. The approach therefore operates within current legal frameworks for securities holding and transfer.

Implications for Tokenized Asset Markets

The pilot demonstrates that large intermediaries view tokenized Treasuries as a practical tool for reducing operational friction rather than a speculative product. Faster collateral movement can lower the amount of capital tied up during financing transactions and reduce the risk of settlement fails. If the test produces measurable efficiency gains, other custodians and dealers may replicate the model for additional fixed-income instruments. The effort also supplies data on how permissioned ledgers interact with existing regulatory reporting and risk-management requirements.

Pilot Participants

BNY and Citadel Securities

Asset Class

U.S. Treasuries

Focus Area

Settlement Efficiency

Earlier experiments by BlackRock with its BUIDL fund and by Franklin Templeton with its BENJI platform used similar tokenized structures for money-market and Treasury exposure. Those products focused primarily on investor access and distribution rather than intraday collateral mobility. The current test differs by targeting the financing leg of the market, where settlement speed directly affects balance-sheet usage. This distinction places the BNY-Citadel effort closer to infrastructure modernization than to product distribution.

The test explores tokenized Treasuries for settlement efficiency, CoinDesk reported.

Regulatory and Legal Considerations

U.S. securities law already permits book-entry securities and electronic transfer systems, so the tokenized layer does not require new statutory authority. However, participants must ensure that the digital records satisfy books-and-records obligations under SEC and FINRA rules. Any cross-border extension of the model would also require alignment with custody and settlement standards set by foreign regulators. The absence of public enforcement actions against prior Treasury tokenization pilots suggests current frameworks can accommodate the structure when operated by regulated entities.

Next Steps and Market Monitoring

Market participants will watch whether the test expands to additional dealers or incorporates live repurchase transactions with external counterparties. Regulators may request data on operational resilience, reconciliation accuracy, and any incidents requiring manual intervention. If results are positive, similar pilots could appear in other short-term funding markets such as commercial paper or agency debt. Continued progress depends on measurable reductions in settlement time and cost rather than on broader market adoption narratives.

→ The takeaway

The BNY and Citadel Securities test adds concrete operational data to ongoing discussions about tokenized fixed-income assets. It focuses on a narrow but material use case: shortening the time between trade and settlement in financing transactions. Results will inform whether permissioned tokenization can deliver incremental efficiency within existing legal and regulatory boundaries. Further announcements from the participants or from other large custodians will indicate whether the approach scales beyond a single pilot.