Circle USYC vs Ondo US Dollar Yield โ side-by-side comparison of supply, chains, backing, and peg data.
Over the last 30 days USYC supply moved -3.6% and USDY -0.9% โ USDY grew faster. USYC held the tighter band: worst deviation 1328 bps against 1422 bps.
| Metric | USYC | USDY |
|---|---|---|
| USD circulation value | $3.00B | $2.14B |
| Rank (by USD value) | #8 | #11 |
| Peg | USD | USD |
| Mechanism | fiat-backed | fiat-backed |
| Backing | Tokenized US Treasuries | Tokenized US Treasuries (Ondo) |
| Chains deployed | 2 | 15 |
| Primary chain | BSC | Ethereum |
| Issuer | Circle | Ondo Finance |
| CoinGecko | View โ | View โ |
Both track USD, so they compete for the same use cases. USYC holds tokenized us treasuries; USDY holds tokenized us treasuries (ondo). USYC ranks #8 by USD value and USDY ranks #11.
USYC is larger, with $3.00B in circulation vs $2.14B for USDY. That's roughly 1.4ร the size.
Neither is inherently safer. Safety turns on reserve composition, issuer transparency, redemption rights and regulatory oversight โ none of which this page audits. Both use a fiat-backed model, so the difference sits in the issuer and the reserves rather than the design. Read each issuer's most recent reserve attestation before choosing.
Yes. USYC and USDY 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.
The right choice depends on your use case. Consider: which chain do you need? USYC is available on 2 chains and USDY on 15. 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.