Stablecoins vs Tokenized Money-Market Funds: What Is the Difference?

If you hold a dollar on a blockchain today, it is probably one of two things: a stablecoin or a share in a tokenized money-market fund. They can look identical in a wallet. Both aim to hold a value close to $1. But they are built on completely different legal and economic structures, and confusing one for the other is one of the most common mistakes in the tokenized asset market.

The short version: a stablecoin is a payment instrument. An issuer holds reserves and promises that one token can be redeemed for one dollar. The token itself typically pays you nothing. A tokenized money-market fund (MMF) is a security. The fund holds short-term instruments such as U.S. Treasury bills, and the yield those instruments generate accrues to you as a shareholder — together with fund mechanics like subscription, redemption windows, eligibility checks, and net asset value (NAV) risk.

This article walks through how each works, puts them side by side, and explains why institutions increasingly prefer tokenized treasuries when they need on-chain collateral.

Two Ways Cash-Like Value Exists On-Chain

The demand behind both products is the same: people who trade or settle on blockchains need something that behaves like cash. Crypto assets are too volatile to serve that role, and bank deposits do not live on-chain. Two answers emerged.

The first answer is the stablecoin. Tokens such as USDT (Tether) and USDC (Circle) are issued by private companies that hold a pool of reserve assets — typically Treasury bills, repurchase agreements, and cash deposits. The token is a claim on the issuer, designed to trade at $1 and to move as easily as any other token.

The second answer is the tokenized money-market fund. Products such as BlackRock's BUIDL fund and Franklin Templeton's BENJI token (representing shares of the Franklin OnChain U.S. Government Money Fund) take an existing, regulated fund structure and record share ownership on a blockchain. The token is not a claim on a company's promise; it is a fund share, with everything that implies — a manager, a custodian, a prospectus, and a NAV.

Both are part of the broader tokenization trend, in which real-world assets are represented as on-chain tokens. But "cash-like" is where the similarity ends. The rest of this article is about the differences.

How Stablecoins Work: A Payment Instrument

A fiat-backed stablecoin has a simple core mechanism. The issuer receives dollars, mints an equal number of tokens, and invests the dollars in reserve assets. When a holder redeems, the issuer burns the tokens and returns dollars. As long as the reserves are sufficient and redemption works, the token trades near $1.

Three features define the holder's position:

• You hold an IOU, not an investment. The token is a claim against the issuer. You are trusting that the reserves exist, are liquid, and are accessible when you want out.
• The yield goes to the issuer, not to you. The reserves earn interest — largely from short-term government debt — but in the standard stablecoin model, that income belongs to the issuer. The holder gets stability and transferability, not return. This is a deliberate design choice: passing yield to holders would, in many jurisdictions, turn the token into a security and change its regulatory treatment.
• Transferability is the product. Stablecoins usually move freely between wallets, trade around the clock, and require no eligibility check to hold (though issuers apply KYC at direct minting and redemption). This is why they dominate crypto trading pairs and on-chain payments.

The risks follow from the structure. The main ones are reserve risk (are the assets really there, and are they good assets?) and depeg risk (the market price falling below $1). These are not theoretical. In March 2023, USDC traded well below $1 for a weekend after Circle disclosed that part of its reserves was held at Silicon Valley Bank, which had just failed. The peg recovered once U.S. authorities guaranteed the bank's deposits, but the episode showed that a stablecoin is only as strong as its reserves and the institutions holding them. Regulatory risk is the other constant: rules for stablecoin issuers are still being written in most major markets.

How Tokenized Money-Market Funds Work: A Security With Fund Mechanics

A tokenized MMF starts from the opposite end. The product is a regulated money-market fund — a structure that has existed for decades — and the blockchain is used as the shareholder register and transfer layer.

The mechanics matter, so here they are step by step:

1. The fund holds short-term assets. Typically U.S. Treasury bills, government repurchase agreements, and cash. These instruments generate interest.
2. Investors subscribe and receive tokens. Each token represents a fund share. Subscription usually requires onboarding: KYC, eligibility verification, and often a qualified or institutional investor requirement. Tokens generally can only move between approved, whitelisted wallets.
3. Yield accrues to the holder. Because the token is a fund share, the interest earned by the underlying portfolio belongs to shareholders. It is commonly distributed as additional tokens or reflected in the share value. Important context for any yield discussion: the source of return is the interest on the underlying short-term instruments; the effective term is short but not zero, since the portfolio holds bills with days-to-months maturities; exit happens through the fund's redemption process, not automatically on a market; and the return is variable — it moves with short-term interest rates and is not guaranteed.
4. Exit goes through redemption. Holders redeem shares with the fund at NAV. Some tokenized funds support fast or even near-instant redemption channels, but the redemption terms are set by the fund's documents, not by the blockchain.

The risks are fund risks rather than issuer-promise risks. NAV can fluctuate slightly if underlying assets are marked down. Returns fall when central banks cut rates — a fund yielding a given rate today may yield much less a year later. Redemption can be slower or subject to conditions in stressed markets, depending on the fund's terms. And eligibility rules mean these products are simply not accessible to everyone, everywhere.

If you want a deeper walkthrough of how to read this kind of product — manager, underlying portfolio, distribution, redemption terms — see how to read a fund-type RWA product. And because a tokenized fund share is easy to confuse with other fund wrappers, it helps to see why tokenized funds and ETFs are not the same product.

Stablecoins vs Tokenized MMFs: Side-by-Side Comparison

The table below compares the two structures. Note the last column: neither product is risk-free, and the risks are different in kind, not just in size.

Two takeaways from the table. First, the yield question is really a legal-structure question: the moment yield passes to the holder, the token is treated as a security, and everything else — eligibility, transfer restrictions, redemption mechanics — follows from that. Second, the convenience question cuts the other way: stablecoins win on transferability precisely because they give up the yield and the investor protections that come with a fund wrapper.

This is also a useful lens on the broader market: the difference between a token that represents a claim and a token that represents a regulated asset is the core theme of how RWA differs from crypto assets.

Why Institutions Increasingly Use Tokenized Treasuries as Collateral

For an individual holding small balances, a stablecoin's simplicity often wins. For an institution holding large cash balances on-chain, the calculation changes, and this is where tokenized MMFs have found their strongest demand.

The logic has three parts.

Idle cash has a cost. A trading firm posting margin, a DAO treasury, or a fund awaiting settlement may hold large stablecoin balances for weeks. In a stablecoin, the interest on the underlying reserves goes to the issuer. In a tokenized MMF, comparable underlying assets — short-term government debt — generate return that accrues to the holder, subject to the fund's terms, rate environment, and redemption mechanics described above. At institutional scale, that difference is material.

Collateral that earns while pledged. The newer development is using tokenized treasury fund shares directly as collateral — for derivatives margin, lending, or settlement — instead of converting to a stablecoin first. This is an emerging use case rather than a settled market standard: parts of the market have started to accept tokenized MMF shares as posted collateral. The appeal is that the collateral keeps accruing yield while posted, and it represents government-backed assets rather than an issuer's promise.

Counterparty risk shifts from issuer to structure. An institution posting a stablecoin as collateral is exposed to that issuer's reserves and redemption capacity. Posting a tokenized government MMF share swaps that for exposure to a regulated fund holding treasuries — a risk profile institutions already understand and have frameworks for.

None of this makes tokenized MMFs a replacement for stablecoins. Payments, trading pairs, and retail transfers still run on stablecoins, because those uses need permissionless movement more than they need yield. The two products are settling into different roles: stablecoins as the payment rail, tokenized MMFs as the on-chain cash-management and collateral layer. We looked at the institutional logic behind this shift in our piece on the institutional logic behind BENJI-style tokenized treasury funds.

Risks, Boundaries, and What to Check Before Drawing Conclusions

A comparison like this can make both products sound solved. They are not, and it is worth being explicit about the boundaries.

Neither is risk-free, and neither is a deposit. A stablecoin can depeg; a money-market fund's NAV can fall, and its yield can drop toward zero when rates do. Money-market funds have historically been very stable, but "very stable" is not "guaranteed" — U.S. money-market funds have broken the buck before (most notably the Reserve Primary Fund in 2008), and tokenized versions inherit that possibility plus new operational layers (smart contracts, on-chain transfer restrictions, token-fund reconciliation).

Tokenized does not mean liquid. A tokenized MMF share sits on a blockchain, but you generally cannot sell it to just anyone. Transfers are restricted to eligible wallets, and exit runs through the fund's redemption process. If you take one habit away from this article, make it this: read the redemption terms before the yield figure. We expand on this in why "tokenized" does not mean liquid.

Eligibility is part of the product. Many tokenized treasury funds are limited to qualified or institutional investors with meaningful minimums. Availability differs by jurisdiction. If a product is described without mentioning who can actually buy it, the description is incomplete.

Regulation is still moving. Stablecoin legislation, fund tokenization rules, and collateral eligibility standards are all evolving. A structure that works today may be reshaped by new rules.

For readers who want to apply this to actual products: the checklist is the same one that applies to any fund-type RWA — underlying assets, manager, source of return, term, redemption terms, eligibility, and the risk section of the official documents. Bifu's RWA page organizes product information along exactly these lines, so you can review what a product invests in, how exit works, and where the formal documents and risk disclosures live before deciding whether it is relevant to you.

The one-line summary: stablecoins and tokenized money-market funds are cousins, not twins. One is money that moves; the other is a fund that happens to move like money. Because that fund holds short-term debt, its yield moves with rates — see rate and duration risk in tokenized debt. Judge each by its own structure — reserves and redemption for the first, portfolio and fund terms for the second — and the differences stop being confusing. And neither one erases currency risk in cross-border products unless your settlement and asset currencies actually match.

FAQ

Can retail investors buy tokenized money-market funds like BUIDL or BENJI?

Usually not without meeting eligibility requirements. Most tokenized MMFs require KYC and are limited to qualified or institutional investors with minimums that vary by product and jurisdiction, so a product that does not disclose who can buy it should be treated as an incomplete description.

Is a stablecoin backed 1:1 by cash?

Not necessarily by cash alone. Stablecoin issuers typically hold a mix of reserve assets such as Treasury bills, repurchase agreements, and cash deposits, not pure cash, and the strength of the peg depends on how liquid and accessible those reserves actually are.

What happens if a stablecoin issuer becomes insolvent?

Holders could face losses or delays getting their dollars back, since a stablecoin is a claim on the issuer rather than a bank deposit. The 2023 USDC episode showed that even a temporary problem at a reserve-holding bank can push the token below its peg until the situation is resolved, and a full issuer failure would be a more severe version of that same risk.

Are tokenized money-market funds insured like a bank deposit?

No. A tokenized MMF is a security, not a bank deposit, so it does not carry deposit insurance. Its NAV can decline if underlying assets are marked down, and redemption follows the fund's own terms rather than a deposit-guarantee scheme.

Related Reading

• New to this? Start with what RWA actually is.
• In the same area: how non-listed assets get valued.