Citigroup unveiled a new blockchain‑based offering on Thursday that lets institutional investors and high‑net‑worth individuals gain exposure to private‑company shares without the traditional paperwork and legal hurdles. The product, called Digital Depositary Receipts (DDRs), runs on a permissioned ledger operated by Swiss market operator SIX and sits atop the bank’s existing custody infrastructure.

DDRs operate on a dual‑layer custody model. Citigroup keeps the underlying private‑market shares in its institutional vault, while issuing a digital depositary receipt that is recorded on the SIX blockchain. Investors trade the receipt rather than the actual shares, sidestepping the need for direct legal transfer of equity interests. Because the receipt is a regulatory‑compliant token that mirrors the economic rights of the underlying shares, it functions as a fully authorized proxy for the private‑equity position.

The secondary market for private equity has long been hampered by cumbersome paperwork, fragmented cap tables, and the use of special purpose vehicles (SPVs) that add cost and delay. According to industry data, the secondary market reached a record $160 billion in 2024. By tokenizing the receipt, Citigroup removes several layers of intermediaries and introduces automated compliance checks that are built into the smart‑contract logic on the blockchain.

This launch fits into a broader trend of banks tokenizing real‑world assets (RWAs). Analysts project that the market for tokenized traditional financial assets could reach multi‑trillion dollars by the end of the decade as institutions seek operational efficiencies and 24/7 market access. Citigroup’s DDR platform is the first in a pipeline that includes a tokenized deposit network The Clearing House plans to roll out with other U.S. banks by mid‑2027.

The DDR concept was demonstrated in a landmark transaction involving Kaleido, a digital‑asset and tokenization company backed by Citi Ventures and several high‑net‑worth clients. The deal showed that the DDR model can be deployed in a regulated environment and that Citigroup’s custody and issuance functions can operate in tandem.

For wealth‑management clients, DDRs provide fractionalized exposure to late‑stage venture companies without the long lock‑up periods that typically accompany private‑equity investments. The product also offers a liquidity outlet for early employees and seed‑stage investors who wish to exit before a public offering. By creating a more liquid secondary market, private companies can meet liquidity demands without rushing to an IPO.

Citigroup has indicated that the current DDR platform will remain on a permissioned network for the foreseeable future. The bank has said it intends to expand the service to public blockchains once regulatory frameworks and cross‑chain security protocols are in place. That transition would require coordination with multiple jurisdictions and the development of standardized legal frameworks for digital ownership.

In short, Citigroup’s Digital Depositary Receipts represent the first step in bringing blockchain technology to private‑market investing. The product blends the bank’s custody expertise with a permissioned ledger to deliver a transparent, compliant, and efficient vehicle for secondary trading of private‑equity interests. The bank’s participation in the Clearing House consortium and its plans for a tokenized deposit network signal a continued commitment to expanding tokenization across the financial system.

Today, DDRs are live for a limited set of private‑company shares, and Citigroup is monitoring regulatory developments and client demand. While the bank has not yet announced a public‑blockchain rollout, it has signaled that further product launches and regulatory engagement will follow as the market matures.