Tokenized bonds and treasuries
Gabriela's USDC sat for a year and earned nothing, while the reserves behind it earned interest. What a T-bill is, how a fund turns it into a token (BUIDL, OUSG), how USDC differs from a treasury fund — and why the yield is not fixed: it follows the Fed. After the 2026-09-16 hike the tokenized-treasury sector's 7-day APY rose from ~3.44% to ~3.62%. Plus who can actually access these products.
In this lesson you'll see how "boring" but stable real-world yield — US government interest — reaches the blockchain through tokenized treasury funds, who actually receives that interest, and why most of these funds are not built for you.
A bank pays little or nothing on the money in your account. But the government you lend money to pays real interest. A tokenized bond is a way to get that government interest on-chain, just by holding a single token in your wallet.
What is a tokenized bond?
The US government borrows money by issuing Treasury bills (T-bills) and bonds. Whoever holds them earns interest. It's one of the safest sources of yield in the traditional world.
Tokenization happens in three steps:
T-bill
A fund collects investor dollars and buys real US Treasury bills.
Fund
The bills sit in a regulated structure (a fund) with a custodian — the same kind of fund you would buy through a broker.
Token
The fund issues an on-chain token that represents your share of the fund. The interest is passed to the token holder.
| Feature | Traditional T-bill fund | Tokenized (on-chain) |
|---|---|---|
| Where you hold it | Brokerage account | Crypto wallet |
| Operating hours | Exchange business hours | 24/7 |
| Source of yield | Government interest | The same interest |
| Who can buy | Per the fund's rules | Also per the fund's rules — not just anyone |
The difference from a stablecoin (USDC vs a tokenized treasury)
This is the most important idea in this lesson. Both are digital dollars, but they differ in who gets the interest.
USDC — stands still. Always worth $1.00 and earns nothing for you. Yet Circle keeps its reserves in those same Treasury bills — the interest accrues, but the issuer keeps it. It's "cash" — great for swapping and paying.
A tokenized treasury fund token — passes those same T-bill interest payments to you. Either the token price slowly rises, or the fund pays out the interest as new tokens. It's a "deposit" — you hold it, and it earns.
| USDC | Tokenized treasury token | |
|---|---|---|
| Type | StablecoinStablecoinA cryptocurrency pegged to a real-world currency (usually $1). USDC, USDT, DAI.Read the lesson → | Tokenized treasury fund |
| Backing | Cash + Treasury bills | Treasury bills |
| Who gets the interest | The issuer (Circle) | The token holder |
| Your annual yield | 0% | ~3.6% (sector 7-day APYAPYAnnual Percentage Yield — the annual interest rate WITH compounding. Always higher than the equivalent APR.Read the lesson → 3.62%, 2026-10-07, rwa.xyz; changes) |
| Value | Always $1.00 | Slowly grows or pays out interest |
| Best used for | SwappingSwapExchanging one token for another. E.g. SOL to USDC via Jupiter.Read the lesson →, paying, gas | Passive holding (if the fund accepts you) |
Yield follows the Fed rate — in both directions
T-bill interest closely tracks the US central bank's (Fed) base rate. When the Fed raises its rate, tokenized-treasury yield goes up; when it cuts, yield goes down. That's not a flaw — it's how the mechanics work.
| Date | Fed rate | Tokenized treasury sector 7-day APY (rwa.xyz) |
|---|---|---|
| January–July 2026 | 3.50–3.75% (held unchanged) | ~3.4–3.5% |
| 2026-09-16 | Raised to 3.75–4.00% | ~3.44% (early September) |
| 2026-10-07 | 3.75–4.00% | 3.62% |
When you see "~3.6%", you don't memorize it. You check the current Fed rate and understand where the number comes from and where it's heading. Before every decision, you check the current figure, not the one you remember.
Who does this — and who can access it
In September 2026 the tokenized treasury sector reached about $15.9 billion across more than 100 funds (rwa.xyz). The two most visible examples:
| Product | What it is | Who can access it |
|---|---|---|
| BlackRock BUIDL ETH | The world's largest asset manager's tokenized treasury fund on the EthereumEthereumA blockchain with smart contracts. We use Aave (lending) and Uniswap (LP) on it.Read the lesson → network, the largest in the sector | Institutional, qualified investors with high minimums |
| Ondo OUSG | A tokenized short-term US Treasury fund | $100,000 minimum and US "Qualified Purchaser" status — not available to an EU resident |
When the biggest players from the traditional world (BlackRock) launch products on-chain, that's a signal — tokenized real-world assets (RWARWAReal World Assets — real-world assets (stocks, bonds, treasuries) represented as blockchain tokens.Read the lesson →) are stopping being an experiment and becoming infrastructure. But for now, that infrastructure is built for institutions.
Most tokenized treasury funds are not available to an EU resident — by minimum size or investor status. In practice, the "dollar" in your wallet stays USDC. The value of this lesson is understanding who earns the interest on your dollars (Circle), for what risk (issuer, custody, regulatory), and what it means when someone offers you a "dollar with yield".
Why is it still worth understanding?
- Stable, "boring" yield — the income comes from government interest, not crypto speculation.
- Lower volatility — the price swings far less than stocks or crypto.
- Transparency — you know who holds your dollars, who earns, and who carries the risk.
Once you understand this, you can look at any "dollar" token and immediately tell whether it earns for you, who keeps the interest, and whether you can access it at all — and consciously choose where to hold which one.
What to check before choosing a tokenized treasury
The risk here is lower than for a tokenized stock, but not zero — and you can assess each part of it yourself before buying:
- You're trusting the issuer (the fund that issued the token) → choose issuers that publicly disclose what backs the token and use a regulated custodian
- Access and regulation → check the fund's offering document: does it accept residents of your jurisdiction, and at what minimum
- Redemption → read how, and how fast, the token can be turned back into dollars
Every risk has an answer. This is NOT "there's no risk" — it's a lower risk than a tokenized stock, and you know how to assess it. More on these risks in Lesson 8-6.
In this task you won't buy anything — just explore and compare numbers. Takes about 10 minutes and costs nothing.
This is purely an exploration task — no money needs to move. Rates change constantly, so always rely on the current number, not one you remember.
This is learning, not investing — use only small amounts you treat as tuition.
You just lined up three yield numbers side by side and checked who the fund is actually for — most people never even ask who earns the interest on their dollars.
This is an educational lesson, not investment or tax advice. YieldsYieldReturn, income. In DeFi, yield comes from LP fees, lending interest, and staking rewards. and prices change with central bank rates, and regulation for tokenized securities is still taking shape — check the current situation yourself.