The Shadow Deposit Problem: When a Money-Market Fund Starts Behaving Like a Bank Account
Zeeshan · 2026-10-13
Tokenized money-market funds can move at internet speed. The controversial question is whether the underlying fund, legal claim, and cash system can keep up during stress.
By Zeeshan | YouYaa Intelligence | 13 October 2026
The controversial question
A tokenized money-market fund can move like money.
You may see a balance in a wallet. You may transfer it on a digital ledger. You may settle a transaction in minutes instead of waiting for a traditional fund process.
But the underlying asset is still a fund share. It is not automatically a bank deposit. It is not automatically a stablecoin. It may not be redeemable at any hour, by every holder, in every country.
That creates the shadow-deposit problem:
What happens when a fund share looks like cash, but the legal and liquidity system underneath still behaves like a fund?
This matters to CFOs, fintech operators, and high-net-worth investors who want faster treasury settlement without giving up safety.
The market behind the token
Money-market funds are already a huge cash-management industry. The Investment Company Institute reported total money-market-fund assets of approximately $7.96 trillion in a 2026 weekly observation.[5]
That is not a tokenized-fund total. It is the broader market into which tokenized products can plug.
A tokenized money-market fund, or TMMF, places fund shares on a blockchain or another digital ledger. The token may support near-real-time transfers, programmable settlement, or wallet-based ownership. But the fund still depends on its portfolio, transfer rules, custody, settlement rails, dealing windows, and redemption process.
The European Central Bank describes the technology as new but the underlying fund risks as familiar. It discusses liquidity risk, run risk, operational risk, settlement risk, investor protection, and interoperability.[1]
Why the product is attractive
For a corporate treasury, a TMMF can appear to solve several problems at once.
Cash can move outside traditional banking hours. A token can be delivered with another digital asset. Settlement can be automated by smart-contract rules. A fund share can be split, transferred, and recorded on a common ledger.
For a fintech operator, this can reduce reconciliation work and make collateral movement faster. For a family office, it can create a digital cash-management layer across entities and jurisdictions.
The promise is powerful:
Earn a money-market return, keep a cash-like balance, and move it at internet speed.
The problem is the last part. Internet speed does not rewrite the fund’s legal rights or the liquidity of its assets.
The risk is not the token. It is the mismatch.
1. Transfer speed can exceed redemption speed
A token may move instantly between eligible wallets. That does not mean the holder can redeem the underlying fund share instantly for bank cash.
The fund may have a cut-off time. The transfer may need approval. The investor may need to pass eligibility checks. The fund’s assets may settle later. A token transfer can therefore create the appearance of cash mobility while the redemption process remains slower.
The ECB warns that tokenisation can make transfers more frequent or continuous while the underlying fund still has traditional dealing and settlement constraints.[1]
2. A digital run can be faster
Traditional fund investors may need to submit redemption requests through an intermediary. A tokenized holder may be able to transfer or sell the token to another wallet quickly.
That can improve liquidity in normal conditions. It can also accelerate a loss of confidence. If many holders want bank cash at the same time, the fund may need to sell or finance assets under pressure.
The Federal Reserve’s 2026 framework for new forms of private money focuses on this exact category of risk: products that look cash-like but can carry run risk, liquidity transformation, leverage, operational concentration, and weaker protections than bank deposits.[2]
3. “Government debt” does not mean “instant cash”
The ECB notes that money-market funds may hold up to 99.5% in government debt under relevant rules.[1]
That is a strong portfolio-quality signal. It is not a promise that every share can be redeemed instantly in every stress scenario.
Government securities can be liquid, but the path from security to cash still passes through a market, a custodian, a settlement system, a fund administrator, and a banking relationship.
4. The token may not be a deposit claim
A bank deposit is a claim against a bank. A fund share is an ownership interest in a portfolio. A stablecoin is a private money claim with its own legal and reserve structure. These instruments may all look like a digital dollar on a screen, but they are not the same legal product.
The New York Fed’s analysis of stablecoins and tokenized deposits shows why the distinction matters. Stablecoins may be backed by safe assets, while banks issue traditional or tokenized deposits to fund portfolios that can contain both safe and risky assets.[4]
The BIS also stresses the need to anchor digital money in credible claims and reliable settlement assets.[3]
The operational risk nobody sees in the wallet
A tokenized fund adds a new technology layer. That layer can create new failure points: wallet permissions, smart-contract bugs, private-key loss, oracle errors, transfer restrictions, cyber incidents, and dependence on a small number of technology providers.
The token may be transferable, but not universally transferable. A wallet may hold the token but not be eligible to redeem it. A transaction may be recorded on-chain while the underlying fund register updates later.
For a CFO, this means the treasury ledger and the legal ownership ledger may not always move at the same speed.
What CFOs and HNWIs should ask
| Question | Why it matters |
|---|---|
| What exactly does the token represent? | It may be a fund share, not a deposit or stablecoin. |
| Who can redeem it for bank cash? | Holder eligibility may differ across wallets and jurisdictions. |
| What are the dealing and redemption cut-offs? | A 24/7 token does not guarantee 24/7 redemption. |
| How long does final settlement take? | On-chain movement and cash settlement may be different events. |
| What assets back the fund? | Portfolio quality and liquidity are not the same thing. |
| Who controls the smart contract and transfer permissions? | Technology concentration can create operational concentration. |
| What happens if the ledger, custodian, or bank is offline? | Treasury continuity depends on the whole chain, not only the wallet. |
| Is there a cash buffer outside the token? | A tokenized balance may not cover an immediate payment need. |
The bottom line
Tokenized money-market funds may make financial markets faster, more programmable, and easier to reconcile.
But the token does not remove the fund. It does not remove settlement. It does not remove the need for a bank account, a custodian, legal ownership, and a cash buffer.
The controversial point is simple:
A token can make a fund share look like a deposit without giving it deposit protection.
For CFOs and HNWIs, the right question is not “Can this token move instantly?” It is:
Can the entire legal, operational, and liquidity chain turn this token into usable cash when the market is under pressure?
Frequently asked questions
What is a tokenized money-market fund?
It is a money-market fund whose shares are represented on a blockchain or another digital ledger. The token may support faster transfer and programmable settlement, while the underlying fund still follows its portfolio and redemption rules.
Is a tokenized money-market fund a bank deposit?
Usually not. A tokenized fund share represents an interest in a fund portfolio. A bank deposit is a claim against a bank. The legal rights, protections, and liquidity processes are different.
Is a tokenized money-market fund a stablecoin?
Not automatically. A stablecoin is a private digital-money claim with its own reserve and redemption structure. A tokenized money-market fund represents fund shares, even if the value is designed to remain stable.
How large is the money-market-fund market?
ICI reported approximately $7.96 trillion in total money-market-fund assets in a 2026 weekly observation. That is the broader market, not the tokenized segment.[5]
Can tokenized funds be redeemed 24/7?
The token may transfer 24/7, but redemption may still depend on dealing windows, eligibility checks, settlement, custodians, and bank cash availability.
What is the main risk for a CFO?
The main risk is a mismatch between the speed of token transfer and the speed of usable cash redemption. A treasury team should confirm cut-offs, settlement finality, eligible holders, collateral rules, and backup liquidity.
Is this investment advice?
No. This is educational analysis of a financial technology structure. Companies and investors should obtain independent legal, accounting, and financial advice for their own situation.
References
[1] European Central Bank, “Tokenised money market funds: new technology, familiar risks?”, 2026
[3] BIS, “Anchoring trust in money: innovation beyond stablecoins,” Annual Economic Report 2026
[4] Federal Reserve Bank of New York, “Stablecoins vs. Tokenized Deposits: The Narrow Banking Debate”
[5] Investment Company Institute, Money Market Fund Assets, 2026