Bank of New York Mellon and Citadel Securities have completed an overnight repurchase agreement using a tokenized two-year Treasury note, with settlement taking just minutes on BNY's private digital ledger. The transaction marks the first known use of a tokenized government security in a repo deal between the two firms.
After the note settled, Citadel Securities used it to raise cash, demonstrating that tokenized assets can move through the repo market's short-term funding mechanics. The repo market is where banks, hedge funds, and other institutions borrow and lend cash against collateral, typically Treasury securities.
How the tokenized trade worked
BNY's private digital ledger recorded the two-year note as a token. Settlement occurred within minutes, a sharp contrast to the traditional repo process, which can take longer due to manual reconciliation and transfer steps. Citadel Securities then pledged the tokenized note to secure cash financing, completing the overnight repo.
The two firms have not disclosed the size of the transaction or the specific interest rate. But the deal's completion shows that tokenized Treasuries can function as collateral in the same way as traditional notes, at least in a controlled environment.
Why BNY's private ledger matters
BNY operates one of the largest custodian networks for U.S. government securities. Its private digital ledger is a permissioned system, meaning only approved participants can access it. That setup differs from public blockchains, where anyone can view transactions. For repo, a permissioned ledger gives banks and regulators more control over who holds the assets and how they move.
The bank has been building out digital asset services for institutional clients, and the repo trade with Citadel Securities is the latest step in that effort. It also signals that tokenization is moving beyond pilot projects into live transactions with major market players.
Citadel Securities' role in repo
Citadel Securities is a major market maker in U.S. Treasuries and repo. Its participation in the tokenized trade suggests that the firm sees potential in using digital ledgers to speed up collateral movements. In the $4 trillion repo market, even small improvements in settlement speed can free up cash and reduce operational risk.
The firm hasn't said whether it plans to use tokenized Treasuries in its regular repo activity. But the successful overnight deal gives both BNY and Citadel Securities a working example to build on.
The trade comes as Wall Street firms and regulators pay closer attention to how blockchain technology can be used in traditional markets. Tokenized Treasuries have attracted interest because they can be transferred instantly and programmed for specific uses, like collateral or margin.
Still, questions remain about how tokenized notes would be treated in a crisis, how they'd be valued if trading halts, and whether the legal framework supports their use across different jurisdictions. BNY and Citadel Securities haven't said if they'll repeat the trade or expand it to other securities.
For now, the overnight repo stands as a concrete example of tokenization working in one of the market's most important funding channels. The next test will be whether other firms follow with their own tokenized repo deals—and whether regulators provide more clarity on how these assets should be handled.
