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World desk9 min

How Banks Provide Liquidity for Cryptocurrency Trading

Banks help crypto markets connect to conventional money through accounts, payment rails, stablecoin reserve custody and institutional services. Those roles differ from directly quoting crypto prices or taking market-making exposure.
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Banks support cryptocurrency trading mainly by moving conventional money into and out of exchanges, safeguarding assets such as stablecoin reserves, and providing custody or customer-directed execution. Those services help trading function, but they are not the same as a bank quoting crypto prices or holding crypto inventory as a market maker. Direct bank trading activity is more limited and varies by institution and jurisdiction.

What “liquidity” means in crypto trading

Liquidity is the ability to buy or sell an asset when you want to, without an excessive delay or price impact. Banks can contribute to that outcome in different ways, but the word “liquidity” can obscure who is actually doing what.

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An exchange needs customers to be able to fund accounts, settle purchases and withdraw proceeds. A bank that provides an exchange with an account and payment access supports those steps. It does not necessarily hold cryptocurrency, set the crypto price or stand ready to buy from and sell to traders. A market maker, by contrast, quotes prices at which it is willing to trade and may take on asset or derivative exposure.

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To understand a bank’s role, ask whether it is moving fiat currency, holding assets, executing a customer instruction, lending money, or quoting a tradable price. These functions can connect, but they are not interchangeable.

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How bank services connect to a crypto trade

1. Bank accounts move fiat onto and off an exchange

A customer can use a bank account or another payment method to fund an exchange account. The exchange records the funds and lets the customer place an order. When the customer later sells and requests a withdrawal, the exchange uses its bank balance and payment access to return fiat to the customer. The exchange, not necessarily the bank, records or arranges the crypto purchase and custody.

This arrangement is an on-ramp and off-ramp: it connects the banking system’s deposits and payment transfers with a crypto trading venue. It can make it easier for buyers and sellers to enter or leave the market. But a bank account alone does not create a quoted market price, supply a cryptoasset for sale, or guarantee that a withdrawal will be immediate. The bank is providing payment and deposit infrastructure rather than necessarily making the crypto trade.

2. Lending can finance a crypto firm without making the lender a market maker

A bank may lend to a crypto business as it does to other businesses. The loan provides financing to the borrower; it is not automatically a commitment by the bank to buy cryptocurrency or quote prices. The borrower’s collateral and ability to repay matter to the credit decision, while the bank’s role as lender remains distinct from any trading role.

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3. Stablecoin reserves connect banking money with on-chain markets

Fiat-backed stablecoins use both blockchain and conventional financial infrastructure. An issuer creates tokens on a blockchain and holds a reserve portfolio denominated in the currency the token references. An asset manager may manage that portfolio, while a financial institution may safeguard the reserve assets.

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When an exchange acquires tokens from an issuer, fiat travels through the traditional payment system to the issuer’s custodian. Once payment is confirmed, the issuer transfers tokens to the exchange. The exchange can then make them available to users. Trades and ownership changes may be recorded on the exchange’s internal ledger; an on-chain transfer is needed when a user asks to move tokens off the venue.

This arrangement can make a stablecoin a trading or settlement medium inside crypto markets while keeping its reserve and redemption arrangements connected to banks and payment systems. The Bank of Canada has noted that blockchain transfers can operate continuously even when some fiat payment systems run only during banking hours, and identifies this difference and exchange access to fiat banking as part of the potential efficiency case for fiat-referenced cryptoassets. That is a description of how the rails may differ, not a guarantee that a particular token will remain liquid or redeemable under stress.

4. Custody and execution help institutions handle assets

Custody is a safekeeping and control service, often involving secure management of private keys. It can support an institution’s ability to hold and handle cryptoassets, but safeguarding an asset does not by itself mean the custodian is buying, selling or quoting it.

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In May 2025, the U.S. Office of the Comptroller of the Currency said national banks and federal savings associations may buy and sell assets held in custody at a customer’s direction. It also said they may outsource permissible custody and execution activities. The guidance makes those activities subject to third-party risk management, safe-and-sound operation and applicable law. This is U.S.-specific guidance, not a statement of permissions for banks everywhere.

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Indirect support versus direct market making

The clearest distinction is whether the bank is enabling someone else’s trade or taking part in the trade itself. The following comparison shows why the same broad phrase—“bank liquidity”—can refer to very different services.

Bank role What the bank does Does it necessarily take crypto price exposure? What it contributes
Exchange account and payment access Holds deposits and processes fiat transfers associated with exchange activity. No. Connects customers and exchanges to conventional payment and deposit infrastructure.
Loan to a crypto firm Provides financing under lending terms. No; lending is not automatically crypto trading. Provides capital to the borrower, subject to credit and repayment considerations.
Stablecoin reserve custody Safeguards reserve assets for an issuer or arrangement. Not necessarily. Supports the off-chain reserve side of a token and its relationship with conventional finance.
Custody and customer-directed execution Safeguards assets and may carry out a customer’s permitted instruction. Not necessarily; execution for a customer is different from quoting as a market maker. Enables asset handling and access for customers.
Derivative trading or market making Trades derivatives or quotes prices in a cryptoasset or related instrument. Potentially; exposure depends on the position and hedging. Can provide more direct trading liquidity, while adding market and risk-management exposure.

The table describes categories, not a promise that every bank offers each service. A bank may provide one function and not another. To identify who supplied liquidity for a particular transaction, look for the entity that posted the quote or took the other side—not simply the bank that held an exchange’s deposit account or safeguarded assets.

How much direct crypto activity do banks provide?

Available figures show bank involvement in crypto-related services, but they do not measure the volume of crypto prices banks quote or the amount of crypto inventory they supply.

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The European Central Bank reported that euro-area significant institutions provided €4.7 billion in crypto-asset and crypto-related investment-product custody services in 2024, up from around €400 million in 2023. It also reported €1.2 billion in deposits from major crypto-asset trading platforms in the fourth quarter of 2024, down from €2.5 billion in the third quarter of 2021. Fewer than ten euro-area banks received those platform deposits, which the ECB characterized as small amounts.

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These are two different measures: one concerns custody services and the other platform deposits. Neither is a tally of direct market-making, crypto trading inventory or bank-provided order-book depth. They are also specific to euro-area significant institutions and the stated periods, not global totals.

For direct trading, the Bank of England’s 2022 assessment said banks then serving crypto markets mostly facilitated client trading in crypto derivatives, and that activity was very limited. It described planned cryptoasset market-making as a possible source of greater direct exposure, dependent on banks’ positioning and hedging. That is a dated assessment of UK activity at the time, not a current global count or proof that all banks make crypto markets.

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Where the risks enter the chain

Concentrated deposits and stablecoin redemptions

Deposits from crypto firms can be concentrated or volatile. Stablecoin reserve arrangements can also connect a redemption event to a bank safeguarding deposits. The Bank of England has explained that a run on a systemic stablecoin backed by commercial-bank deposits could lead to withdrawals from the safeguarding bank and potentially require it to liquidate assets. It has warned that this type of arrangement could increase financial interconnectedness.

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The concern is not that every stablecoin reserve or crypto-firm deposit will create a bank liquidity problem. It is that a large or rapid outflow can transmit pressure across institutions that are connected through deposits, reserves and redemptions.

Market-making and balance-sheet exposure

A bank that trades or makes markets can face price risk, hedging risk, counterparty risk, operational risk and liquidity risk. Its willingness or capacity to quote can change with its risk limits, applicable regulation and market conditions. A quoted price is therefore not a permanent promise of depth; a market maker may adjust or stop quoting as its exposure changes.

Crypto intermediaries are not all banks

The Bank for International Settlements’ Financial Stability Institute described, in a 2026 paper, cryptoasset intermediaries that accept customer assets and use them for lending, market making or other activities. Such practices expose the intermediary to credit, liquidity and maturity risks. The paper also notes that many jurisdictions lack safeguards comparable to those for traditional intermediaries, including deposit-insurance-like schemes or central-bank liquidity facilities.

Do not assume that customer assets held or deployed by a crypto intermediary are ordinary bank deposits. The institution type, legal protections and use of customer assets can differ. That distinction matters when considering who can provide funds during stress and what safeguards apply.

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What U.S. bank guidance says—and what it does not say

In 2025, the U.S. Federal Deposit Insurance Corporation listed custody, stablecoin reserves, market making, exchange or redemption agency, distributed-ledger settlement and payments, and lending among crypto-related activities. It clarified that supervised institutions may engage in permissible activities without prior FDIC approval, while continuing to manage safety-and-soundness, liquidity, operational, cybersecurity, consumer-protection and anti-money-laundering risks.

This describes U.S. supervisory guidance, not a blanket permission for any bank to conduct any crypto activity in any jurisdiction. Applicable law and supervision govern each activity, and the FDIC’s statement concerns institutions within its supervisory remit. The FDIC also said it expected to issue further guidance to provide additional clarity regarding banks’ engagement in particular crypto-related activities.

How to tell what a bank is actually doing

When a bank or exchange says it supports crypto liquidity, use these checks to interpret the claim:

  • Identify the activity. Is the bank moving fiat, holding a deposit, safeguarding reserves, providing custody, executing a customer instruction, lending, trading derivatives or quoting prices?
  • Ask who controls the asset. For custody, who manages the private keys? For a stablecoin, who holds or manages the reserve assets?
  • Separate payment from trading. A fiat transfer can fund or settle an exchange account without the bank supplying a cryptoasset or taking the other side of a trade.
  • Check the settlement rail. Is the transaction being recorded on an exchange’s internal ledger, transferred on a blockchain, or settled through a conventional payment system? The systems may run on different schedules.
  • Look for price exposure. A market maker may take a position and hedge it; a custodian or payment provider may not. Do not infer direct market making from a banking relationship alone.
  • Locate the jurisdiction and date. Regulatory permissions and reported activity vary by place and can change. For example, the OCC and FDIC statements described here concern U.S. institutions, while the Bank of England’s market-activity assessment is from 2022 and the ECB figures cover 2023–24.

The practical takeaway

Banks support cryptocurrency trading most visibly at the edges of the market: deposits, transfers, withdrawals, lending, reserve custody and institutional asset handling. Those services can be essential to a functioning market, especially where fiat must move between customers, exchanges and stablecoin issuers. But they should not be mistaken for the more specific activity of making two-sided markets or supplying crypto trading inventory. Direct participation exists, including derivatives activity and potentially market making, but the evidence here does not establish it as universal or dominant.

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