Tokenized Treasuries and BlackRock BUIDL, explained
Tokenized Treasuries are the largest category of real-world assets on-chain, around $15 billion in 2026. The flagship is BlackRock's BUIDL, a tokenized money market fund holding short-dated US Treasuries, launched on Ethereum in March 2024 with Securitize as transfer agent, restricted to qualified purchasers at a $5 million minimum. Products like Ondo's OUSG and Franklin Templeton's BENJI offer different access points. This guide explains the mechanics, the yield, the legal structure, and the risks, and is educational rather than investment advice.
If tokenized real-world assets have a proven product, it is the tokenized Treasury. It is the category that took the idea from experiment to institutional reality, growing from under a billion dollars in early 2024 to roughly $15 billion by 2026, close to half the entire RWA market. The reason is straightforward. A short-dated US Treasury is about the safest yield in finance, institutions already understand it, and wrapping it in a token adds speed and programmability without changing the credit. This guide explains how these products work.
What a tokenized Treasury product is
Most tokenized Treasury products are not raw Treasury bills on-chain. They are tokenized shares of a fund, usually a money market fund, that holds short-dated US Treasuries and cash equivalents. The token represents a share of that fund. When you hold the token, you hold a claim on the fund, and the fund holds the bonds. This layering matters, because it means you are relying on the fund structure, its manager, and its custodian, not directly on the US Treasury.
The yield comes from the interest the underlying Treasuries earn, and products deliver it in one of two ways. Accruing tokens increase in value as the fund earns, while your token balance stays the same. Rebasing tokens hold a stable price near a dollar and increase the number of tokens in your wallet instead. The distinction sounds technical but matters for accounting, tax, and how the token behaves inside other on-chain systems.
BlackRock's BUIDL, the benchmark
No product did more to legitimize the category than BlackRock's BUIDL, formally the BlackRock USD Institutional Digital Liquidity Fund. The world's largest asset manager launched it on Ethereum in March 2024 in partnership with the tokenization platform Securitize, which serves as transfer agent. It crossed a billion dollars in assets within seven months, the fastest tokenized fund on record to do so, and by 2026 sat around $2.5 billion across eight or nine blockchain networks.
The mechanics are deliberately plain. The fund holds short-dated US Treasury bills, cash, and repurchase agreements collateralized by Treasuries. It pays yield as daily dividends, distributed as new tokens minted into holders' wallets. Transfers settle on-chain in roughly thirty seconds rather than the T+1 or T+2 of traditional markets. Through 2026 BlackRock pushed BUIDL further into the on-chain economy, including making fund shares tradable through a major decentralized exchange and accepted as collateral on large trading venues.
Ondo, Franklin Templeton, and the field
BUIDL is the benchmark but not the whole market, and the leaderboard is tight. Several products sit within a few hundred million dollars of each other, which signals a maturing category rather than a single winner. They serve different buyers.
Ondo Finance is the largest DeFi-native issuer. Its OUSG token wraps short-term Treasury exposure, in part by routing through BUIDL itself, but with a far lower entry point and round-the-clock subscription and redemption, and it is built to be used as collateral in DeFi. Ondo also offers USDY, structured as a reward-bearing note backed by short-dated Treasuries and bank deposits, aimed at non-US holders. Franklin Templeton's BENJI, one of the earliest tokenized money market funds, targets a broader investor base with low barriers to entry. Circle, JPMorgan, and others have launched competing products, with JPMorgan's offering explicitly engineered as a compliant reserve asset for stablecoin issuers.
| Product | Issuer | Access angle |
|---|---|---|
| BUIDL | BlackRock | Institutional, $5M minimum |
| OUSG | Ondo Finance | DeFi-native, 24/7, lower entry |
| USDY | Ondo Finance | Note for non-US holders |
| BENJI | Franklin Templeton | Broader investor access |
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Download for MacThe legal structure and who can hold these
Tokenized Treasury products are securities, and they are regulated as such. The January 2026 joint statement from US regulators made the governing principle explicit, that existing federal securities laws apply whether ownership is recorded on-chain or off-chain. This is why these products carry the access restrictions they do. BUIDL's qualified-purchaser requirement is not a crypto quirk, it is the same standard the equivalent traditional institutional fund would carry.
In practice this means tokenized Treasury products operate inside know-your-customer and anti-money-laundering frameworks, use allow-listed wallets so only approved addresses can hold the token, and can restrict transfers to stay compliant. A holder redeems through an approved channel rather than selling to anyone on the open market. These controls are what let a regulated security exist on a public blockchain at all, and they are a feature of the legal design, not a limitation bolted on afterward.
The risks
A tokenized Treasury is low-risk by the standards of financial assets, but low-risk is not no-risk, and tokenization adds its own layer. The underlying short-dated Treasuries carry minimal credit risk and modest interest-rate sensitivity. The fund wrapper adds the manager's operational soundness. The token adds smart-contract risk, the possibility of a flaw in the code, and custodial risk in the entities holding the real assets and keeping the records.
There is also a subtle point about what you are holding. A product like OUSG is not simply a Treasury bill on-chain, it is a token representing a structured exposure pathway that may route through other funds. Reading the issuer's own disclosures matters, because the label tells you less than the structure. The honest summary is that these are among the safer things in crypto, precisely because they are anchored to regulated traditional finance, but the anchor is a chain of institutions, and you are trusting every link in it.
Following the sector's prices
The tokenized Treasury funds themselves hold a stable value by design, so their token price is not where the action is. The market's view of the RWA theme shows up instead in the prices of the platform and infrastructure tokens tied to it, which trade on public markets and move with adoption. Keeping those in view is a way to read how the market is valuing the tokenization story over time.
CoinNotch puts live crypto prices in your Mac menu bar, including tokens connected to this sector, so you can follow the theme at a glance. It is a price display showing public market data only, not a way to access or buy any tokenized Treasury product. For the wider picture, the RWA overview covers all the categories, and the tokenized stocks guide covers equities.