What Are Tokenized Money Market Funds?

In February 2026, BlackRock listed its BUIDL tokenized fund on Uniswap — making it possible, for the first time, for institutional investors to swap between US Treasury exposure and stablecoins 24/7 through a decentralized exchange. This is not a theoretical concept. It is BlackRock, the world's largest asset manager, putting a regulated fund on DeFi infrastructure and letting qualified investors interact with it around the clock.

So what are tokenized money market funds, why do they exist, and what happens when the world's best collateral meets programmable infrastructure?

What Is a Tokenized Money Market Fund?

A traditional money market fund holds short-term, low-risk assets — primarily US Treasury bills, repurchase agreements, and government debt. Investors buy shares in the fund and earn the yield generated by those underlying assets. The process of buying, redeeming, and transferring shares happens through back-office systems that settle once per day during business hours.

A tokenized money market fund is the same product — same assets, same regulatory wrapper, same fund structure — but shares are represented as tokens on a blockchain. Instead of holding shares in a brokerage account, you hold them in a digital wallet. Instead of waiting for daily settlement, you can transfer them in seconds. Instead of calling your broker to redeem, you interact with a smart contract.

Robert Leshner, CEO of Superstate (which builds tokenized fund products), described the fundamental difference:

“The process of moving US Treasuries today is generally a daily process that's almost entirely manual. If a bank wants to send some treasuries to another bank, it's back office doing that once a day. A lot of clickety-clack and spreadsheets. When an asset is tokenized and brought on chain, you can move it basically instantly, basically for free, anywhere in the world. And you can add automation to those different pieces.”

— Robert Leshner, CEO of Superstate (Episode 3)

The tokenized Treasury market has grown from $780 million in January 2024 to over $24 billion in early 2026. BlackRock's BUIDL fund alone has surpassed $500 million. These are not speculative tokens. They represent ownership of the safest asset in the world, wrapped in infrastructure that makes it faster, cheaper, and more programmable to use.

Why Treasuries Are the Perfect Asset to Tokenize

US Treasuries are the bedrock of global finance. Money-good, backed by the US government, and liquid at scale. They're the preferred collateral for virtually every financial transaction: derivatives, lending, prime brokerage, repo markets.

But the way they move today is slow. Leshner explained why tokenization changes that:

“Treasuries are the best collateral in the world. There's no expectation the US government is going to default. They're unbelievably liquid at crazy sizes going into the trillions. Tokenizing them makes them better. Instead of a daily settlement process, it takes 12 seconds to move treasuries to anyone else. And you can move them based on logic — if this price falls, move this asset from A to B. That opens up a Pandora's box of new use cases.”

— Robert Leshner, CEO of Superstate (Episode 3)

The “based on logic” part is key. Smart contracts can automate what today requires human intervention: if a margin call is triggered, collateral moves automatically. If a portfolio needs rebalancing overnight, it happens without waiting for a back office to open on Monday morning. That's a different world from collateral that requires manual processing.

Who Actually Buys Tokenized Treasury Funds?

You'd assume the buyers would be pension funds and sovereign wealth funds. But the early demand has come almost entirely from crypto-native institutions.

“Almost all of the customers are crypto-native institutions that could potentially set up brokerage accounts and buy treasuries directly. But they don't. 99% of their focus is on crypto assets and crypto markets. They're set up with a digital asset custodian like Coinbase, not a traditional custodian like a bank. They don't want to leave their stack of tooling and infrastructure, but they do want a better risk-free rate.”

— Robert Leshner, CEO of Superstate (Episode 3)

The logic is simple. A crypto hedge fund sits on USDC or USDT between trades. That balance earns zero yield. A tokenized Treasury fund earns the T-bill rate — currently around 4–5%. If you can swap between stablecoins and tokenized Treasuries in a single transaction, keeping idle cash in a zero-yield stablecoin is just leaving money on the table.

Sheffield described the dynamic as “a checking account and a savings account function” — hold tokenized Treasuries to earn yield, swap 24/7 into stablecoins when you need to spend. This is treasury management built for a 24/7 market.

BlackRock on Uniswap: What It Actually Means

When BlackRock listed BUIDL on Uniswap in February 2026, it was technically an institutional DeFi pool — whitelisted access only, handled by Securitize for compliance, with Wintermute providing liquidity. Qualified purchasers (minimum $5 million in assets) could swap between USDC and BUIDL tokens on-chain, 24/7, without waiting for traditional fund settlement windows.

Diogo Mónica, GP at Haun Ventures and a board member at two federally chartered banks, described why this was structurally important:

“You could have somebody take the risk of the overnight or weekend redemption from BlackRock — which is very little risk — and settle a counterparty on both legs of the trade, the BUIDL side and the USDC side. But it would be point-in-time, peer-to-peer agreements, which is not the point. This Uniswap listing is a generic solution. It's a much easier way for participants to coordinate around that exact point of liquidity.”

— Diogo Mónica, GP at Haun Ventures (Episode 70)

Sheffield immediately connected this to payments: “Now a corporate treasurer could sit on BUIDL, and the moment they want to make a B2B payment, swap into USDC or USDT and send it out. Being able to do 24/7 tokenized money market to stablecoins is a key unlock that makes it relevant for payments.”

This is the bridge between DeFi and institutional treasury management. The treasurer earns yield on their idle cash by holding a BlackRock fund. When they need to make a payment — even at 2am on a Saturday — they swap to stablecoins on Uniswap and execute. No waiting for Monday. No calling a broker. No back-office processing.

Tokenized Treasuries as Stablecoin Reserves

One of the most consequential use cases is what's happening behind stablecoins themselves. Stablecoin issuers hold reserves — typically US Treasuries and cash — to back every dollar of stablecoin in circulation. Today, those reserves are held off-chain, verified through periodic audits and attestations. The process works, but it's opaque and slow.

Sheffield raised the possibility of a different model:

“What does it mean for a stablecoin issuer if you could say: we can prove that we own this address that has the equivalent amount of BUIDL or Superstate funds backing the stablecoin product we have? It's more transparency into reserve backing if what it's backed by is also on chain.”

— Cuy Sheffield, Head of Crypto at Visa (Episode 3)

If stablecoin reserves are themselves tokenized and visible on-chain, proof-of-reserves becomes real-time and cryptographically verifiable — not dependent on quarterly attestations. That's the bigger picture. Tokenized money market funds don't just serve institutional investors. They can serve as the transparent, verifiable backing for the stablecoins that everyone else depends on.

The Collateral Upgrade

In traditional finance, collateral management is a multi-trillion-dollar operation that runs on manual processes. Margin calls require moving assets between custodians. Rebalancing happens during business hours. Cross-border collateral transfers involve correspondent banking delays.

Tokenized money market funds change the collateral equation in three ways:

• Speed: Collateral can be posted or moved in seconds rather than waiting for daily settlement cycles. If a margin call is triggered at 3am on a Sunday, the collateral can move immediately.
• Programmability: Smart contracts can automate collateral management rules. If a portfolio's value drops below a threshold, collateral can be automatically rebalanced without human intervention.
• Composability: Tokenized Treasuries can be used across multiple DeFi and TradFi protocols simultaneously. The same BUIDL token can serve as collateral for a derivatives position, back a stablecoin-linked card program, and be instantly liquidated into USDC if needed.

Stani Kulechov, founder of the Aave DeFi protocol, described the evolution in product construction that tokenized assets enable:

“If you can actually go towards the underlying — equities that are directly tokenized on chain — and then construct ETFs and funds directly in a more simple format, you reduce costs and are able to construct these products much more easily. You will see really unique product offerings at very minimal cost, composed and represented on chain, traded, and used as collateral.”

— Stani Kulechov, Founder of Aave (Episode 49)

The endgame is a financial system where collateral is always in the right place at the right time, managed by code rather than back-office staff. Tokenized money market funds are the first step because Treasuries are the foundational collateral asset. Once those are on-chain and programmable, every financial product built on top of them gets faster and more capital-efficient.

The Institutional Privacy Problem

There's a big barrier to broader adoption that nobody has solved yet: privacy. Public blockchains are transparent by design — every transaction is visible. For institutions, that's often a dealbreaker.

Sheffield reported that privacy, not scalability, is the top concern in institutional conversations: “In every conversation I'm having with institutions and enterprises, they're not worried about scalability. They're worried about privacy. They're saying: you think we're gonna put transactions on a public chain?”

Chris Maurice, CEO of Yellow Card, confirmed this from the emerging markets perspective: “When we talk to banks and financial institutions, especially outside the US and Europe, privacy is typically the first question. Is somebody able to see the transactions our institution is performing? Can someone front-run currency markets based on seeing our flows?”

Mónica offered a pragmatic view: privacy at the base layer is unpopular because it complicates compliance integrations and platform support. The more likely model is privacy as an application layer on top of a performant base chain — specialized privacy zones for institutional transactions while the base infrastructure remains transparent and easy to integrate with.

What Comes Next for Tokenized Funds

Tokenized money market funds are the first wave. They're the natural starting point because Treasuries are low-risk, liquid, well-understood, and in demand as collateral. But they won't be the last.

• Tokenized bond funds are the obvious next step — corporate bonds, municipal bonds, and sovereign debt from other countries. The same benefits (24/7 settlement, programmable collateral, instant transfers) apply to any fixed-income product.
• Tokenized equity funds are beginning to emerge. Kraken and NASDAQ have partnered on tokenized stock trading. Coinbase is launching tokenized equities. The infrastructure for tokenized ETFs is being built.
• Cross-collateralization becomes possible when multiple asset types exist on the same infrastructure. A portfolio of tokenized Treasuries, equities, and gold could serve as unified collateral for a lending facility — managed by a single smart contract rather than multiple custodians and brokers.
• Global distribution is the ultimate unlock. Today, accessing US Treasuries from emerging markets requires a US brokerage account. A tokenized Treasury fund accessible via a wallet changes the addressable market from US institutional investors to anyone in the world who can pass KYC.

Mónica described BlackRock's trajectory as something bigger than just a fund: “Shout out to Robert Mitchnick and the team. They've been on the forefront, bringing the whole space along with them. It's clear everything they do, the rest of the industry is going to follow.”

Leshner captured why this matters at a systemic level:

“The combination of a tokenized asset and smart contracts on a blockchain means that all sorts of use cases can be programmed. The whole process of everything built on top of this incredible collateral building block can get faster, cheaper, more efficient, 24/7, and global. Tokenizing this world-class asset is going to have an eventual trickle-down effect to making so many other processes more efficient.”

— Robert Leshner, CEO of Superstate (Episode 3)

That's the trajectory here. The most conservative financial product in the world, running on infrastructure that never sleeps, accessible to anyone with a wallet and a KYC check. Once Treasuries work on-chain, everything else follows.