The bank custody race: who will hold America’s Bitcoin?
Wall Street spent years treating Bitcoin custody like a niche problem for crypto startups. Now the banks want in, and the prize is bigger than storage: it is the institutional plumbing around trading, lending, settlement, and tokenization.
- Banks are moving into Bitcoin custody after major U.S. policy barriers eased in 2025.
- The real money is downstream: prime brokerage, lending, settlement, and tokenized assets.
- Crypto-native custodians still matter, but the moat is getting crowded.
- Insurance remains a weak point across digital asset custody, and that gap is still ugly.
Citi’s August 18 announcement of Custody+ made the new reality hard to ignore. The bank said it expects to go live with digital asset custody later in 2026, starting with Bitcoin. That is a serious move from a serious institution, not a hobby project dressed up in PowerPoint glitter.
Citi targets 2026 launch for crypto custody service as Wall is not just a headline about one bank trying to look modern for the quarterly earnings slides. Citi is not alone. BNY Mellon, State Street, Standard Chartered, and U.S. Bank are all pushing deeper into digital asset custody in different ways. The old assumption that crypto-native firms would keep this business to themselves is starting to crack. Not dead, just no longer convenient.
The shift began when U.S. policy stopped being such a drag. The SEC rescinded SAB 121 through SAB 122, effective January 30, 2025. SAB 121, introduced in March 2022, had forced firms holding crypto for clients to record a matching liability on their balance sheet. In practice, that made custody economically awkward for many institutions.
SAB 122 changed the accounting treatment by sending firms back to normal loss-contingency accounting under FASB ASC Subtopic 450-20 or IAS 37. Translation: the accounting headache got smaller, and suddenly the business looked a lot less radioactive.
That matters because custody is not just “holding coins.” For institutions, it means safeguarding private keys, controlling operational risk, and meeting compliance and audit standards. Private keys are the cryptographic credentials that control access to crypto assets. Lose them, and the assets are gone. No reset button. No friendly bank clerk can magic it back with a stamp and a smile.
Citi’s Custody+ is built as a modular custody suite, with near- and real-time processing, instant settlements, on-demand foreign exchange, and digital asset custody folded into the same broader architecture. Citi says it will start with Bitcoin, but the design points well beyond Bitcoin alone.
That is the part worth watching. Banks are not entering this space just to say they hold BTC. They are trying to own the workflow around it: the custody relationship, the settlement layer, the financing, and eventually the tokenized rails that sit underneath future market structure.
BNY Mellon is already well ahead of the pack on the traditional finance side. It is the world’s largest custody bank by assets under custody and is active in digital asset services. Its relationships with firms like Morgan Stanley and Ripple show why this matters: custody is not a side hustle, it is a trust layer for institutional capital.
State Street is making its own push. It launched its Digital Asset Platform in January 2026, signaling that another giant custody bank would rather build than be bypassed. Standard Chartered is taking a different route by absorbing Zodia Custody, a crypto custody firm with seven global offices and support for more than 75 cryptocurrencies. That tells you something important: banks may have scale and distribution, but crypto-native infrastructure still has technical depth that cannot be wished into existence.
In other words, the banks are late to the fight, but they are showing up with capital, clients, and regulators on speed dial. The crypto firms got there first because they had to. They built around blockchain systems from the start, not as an add-on to a legacy stack designed for paper certificates and sleepy back-office workflows.
The commercial logic is straightforward. Custody fees are only part of the story. The real prize is what custody unlocks: prime brokerage, lending, derivatives access, settlement services, collateral management, and tokenization. Prime brokerage is the bundled institutional package, custody, trading, financing, and related services under one roof. If a bank can own that relationship, it has a much stronger hold on the client than a simple wallet service ever could.
That is why the custody race is really a race for the institutional front door.
The numbers show that institutions are not backing away. A 2026 Institutional Investor Digital Assets Survey: Volatility found that 73% of institutional investors plan to increase their digital asset allocations this year. It also found that 81% prefer spot exposure through a registered vehicle, and 61% use multiple custodians rather than a single one. That is not moonboy behavior. That is risk management with a Bitcoin allocation attached.
The same survey found that 66% named regulatory uncertainty as a top concern. That is the boring but decisive truth of this market: institutions like the upside, but they hate ambiguity. They want exposure to Bitcoin, Ethereum, stablecoins, and tokenized assets, just not at the cost of walking into a regulatory bear trap with their eyes closed.
The broader policy backdrop has also improved. The GENIUS Act, signed into law in July 2025, created a federal framework for payment stablecoins, including reserve, disclosure, and oversight standards. That does not solve everything, but it does give institutions more structure than the “trust us, bro” era.
Still, structure is not the same thing as safety. The industry’s big unresolved weakness remains insurance.
Coverage for digital asset custody is still thin compared with the value sitting in the market. Standard brokerage accounts have familiar protections. Bank deposits have familiar backstops. Crypto custody does not fit neatly into either bucket, even when the assets sit with a household-name institution. That is the uncomfortable part everyone likes to bury under slick branding and compliance jargon.
“The bank will make you whole” is not a law of nature. It is an assumption. And assumptions are cheap until the day they are not.
That is why custody design matters so much. Institutions use a mix of Hardware Security Modules and Multi-Party Computation. HSMs are tamper-resistant devices that generate, store, and sign with cryptographic keys. MPC splits a private key into shares so it is never fully reconstructed in one place. Then there are the storage tiers: cold storage, which stays offline and is the safest; warm storage, which is more accessible but still protected; and hot wallets, which are online and therefore the most usable, but also the least secure.
That is the tradeoff institutions live with: keep the crown jewels offline, but still move assets fast enough to run a real business. No one wants to explain to a board why a “temporary operational wallet” became a permanent headache with six figures attached to it.
The other big piece here is tokenization. The tokenized real-world asset market has expanded more than 420% since the start of 2025 and reached $31.6 billion. That figure matters because custody is becoming the plumbing beneath a much larger system. If deposits, securities, and other assets move onto blockchain rails, someone has to safeguard them, settle them, and keep the operational machinery from falling apart.
That is where the banks see the future. Not because they suddenly discovered a spiritual connection to Bitcoin, but because custody is the gateway to the whole stack. It is the tollbooth on the road to tokenized deposits, tokenized securities, and real-time financial rails.
SBI Group and Chainlink Partner to Boost Japan’s Asset is a reminder that this isn’t just a U.S. banking story. Tokenization is going global, and the institutions that can securely hold, move, and settle tokenized assets are going to matter a lot more than the loudest pundits on Crypto Twitter pretending every chain is about to eat Wall Street before lunch.
Coinbase is still a major force in that market. Its custody business remains a core institutional product, and its prime brokerage stack includes lending, derivatives access through Deribit, and staking across multiple tokens. That is the real competitive pressure on the banks: not just “who holds the asset, ” but “who offers the full institutional package around it.”
Robinhood Crypto Revenue Surges 98% to $160M in Q2 2025 also shows how quickly retail-facing platforms are widening into broader crypto and tokenization plays. Different lane, same punchline: the custody and infrastructure layer is where the durable business lives, not in yet another flashy chart promising the moon with all the seriousness of a casino ad.
Crypto-native custodians are not standing still either. BitGo’s assets under custody crossed $90 billion in mid-2025, and the top five crypto-native custodians still control a meaningful share of the global market. Their edge is not distribution or balance sheet size. It is technical specialization, faster product iteration, and experience with blockchain-native operations that legacy finance is still learning on the fly.
So who wins?
Probably not a single clean winner. The more likely outcome is hybrid infrastructure. Institutions want the credibility and regulatory access of big banks, but they also want the crypto-native tooling that understands how these systems actually work. The EY/Coinbase survey backs that up too: most institutions are not choosing ideology, they are choosing optionality.
That leaves one very obvious stress test hanging over the whole market: what happens if a major bank has a digital asset custody failure? The usual assumption is that a big bank means safety. Sometimes it does. Sometimes it means a bigger blast radius. With insurance coverage still limited, that is a risk the industry keeps underplaying.
For now, the direction is clear. Banks want in. Regulators have made it easier. Institutions want exposure. And custody is the entry point for everything that comes after.
Sigbash Targets Better Bitcoin Custody Without a Soft Fork sits in the background of that conversation too, because Bitcoin itself keeps forcing the industry to wrestle with custody design, key management, and the ugly reality that secure self-custody is powerful but not exactly idiot-proof. Freedom has a learning curve. Shocking, I know.
Key questions and takeaways
-
Why are banks moving into Bitcoin custody now?
Because the regulatory friction eased in 2025, and custody opens the door to higher-value services like lending, settlement, derivatives, and tokenization. -
What changed with SAB 121?
The SEC rescinded the guidance through SAB 122, effective January 30, 2025, which removed the balance-sheet treatment that made crypto custody cumbersome for many firms. -
Is custody just about storing Bitcoin?
No. For institutions, custody means private key protection, operational controls, auditability, and the ability to plug into broader financial services. -
Do crypto-native custodians still have an edge?
Yes, especially in wallet architecture, MPC-based key management, and blockchain-native workflows. Banks bring scale; crypto-native firms bring specialization. -
What is the biggest unresolved risk?
Insurance. Coverage remains limited relative to the value of digital assets under custody, and that gap is still a major weakness. -
Will banks replace crypto-native custodians?
Not likely across the board. The more realistic outcome is a hybrid model, with institutions using both depending on the asset, the venue, and the service stack.
What to watch next: ETF custody rotation over the next 12 months, whether insurance capacity grows meaningfully above current levels, OCC charter applications, Citi’s Custody+ live date, and whether Coinbase Prime keeps retaining institutional flows. The real fight is not just over Bitcoin. It is over who gets to sit between institutional capital and the next generation of financial rails.
