USDYvsU
Ondo US Dollar Yield vs United Stables — side-by-side comparison of supply, chains, backing, and peg data.
Side-by-side
USDY — Ondo US Dollar Yield
U — United Stables
30-day peg stability dotted line = target · both charts share one scale
What the last 30 days show
Over the last 30 days USDY supply moved -0.9% and U +17.4% — U grew faster. U held the tighter band: worst deviation 9 bps against 1422 bps.
Key differences
- USDY is roughly 1.8× larger than U by USD circulation value ($2.14B vs $1.21B).
- USDY ranks #11 while U ranks #15 among all tracked stablecoins.
- Both are pegged to the same currency (USD), so they compete directly for the same use cases.
- USDY is a fiat-backed stablecoin; U is crypto-backed. Different mechanism, different failure modes.
- Reserves differ — USDY holds tokenized us treasuries (ondo), U holds stablecoin basket.
- USDY is deployed on 15 chains — much broader coverage than U's 3.
- Primary chain differs — most USDY supply lives on Ethereum, while most U supply is on BSC.
Full comparison table
| Metric | USDY | U |
|---|---|---|
| USD circulation value | $2.14B | $1.21B |
| Rank (by USD value) | #11 | #15 |
| Peg | USD | USD |
| Mechanism | fiat-backed | crypto-backed |
| Backing | Tokenized US Treasuries (Ondo) | Stablecoin basket |
| Chains deployed | 15 | 3 |
| Primary chain | Ethereum | BSC |
| Issuer | Ondo Finance | — |
| CoinGecko | View → | View → |
Frequently Asked Questions
What's the main difference between USDY and U?
Both track USD, so they compete for the same use cases. USDY holds tokenized us treasuries (ondo); U holds stablecoin basket. USDY ranks #11 by USD value and U ranks #15.
Which is bigger, USDY or U?
USDY is larger, with $2.14B in circulation vs $1.21B for U. That's roughly 1.8× the size.
Is USDY safer than U?
Neither is inherently safer. Safety turns on reserve composition, issuer transparency, redemption rights and regulatory oversight — none of which this page audits. USDY uses a fiat-backed model; U uses a crypto-backed one. Read each issuer's most recent reserve attestation before choosing.
Can I convert between USDY and U?
Yes. USDY and U both trade on major centralized and decentralized exchanges. Since both track USD, the exchange rate is typically very close to 1:1. Direct swap protocols on Ethereum, Solana, and other chains offer the tightest spreads.
Should I choose USDY or U?
The right choice depends on your use case. Consider: which chain do you need? USDY is available on 15 chains and U on 3. What backing do you prefer? What's your integration surface (exchanges, DeFi protocols, payment providers)? Both have deep liquidity, so market cap alone shouldn't decide it.