USD Coin vs World Liberty Financial USD โ side-by-side comparison of supply, chains, backing, and peg data.
Over the last 30 days USDC supply moved +2.5% and USD1 +8.5% โ USD1 grew faster. USDC held the tighter band: worst deviation 5 bps against 11 bps.
| Metric | USDC | USD1 |
|---|---|---|
| USD circulation value | $73.70B | $4.36B |
| Rank (by USD value) | #2 | #6 |
| Peg | USD | USD |
| Mechanism | fiat-backed | fiat-backed |
| Backing | Cash & T-bills | US Treasuries |
| Chains deployed | 157 | 8 |
| Primary chain | Ethereum | Ethereum |
| Issuer | Circle | World Liberty Financial |
| CoinGecko | View โ | View โ |
Both track USD, so they compete for the same use cases. USDC holds cash & t-bills; USD1 holds us treasuries. USDC ranks #2 by USD value and USD1 ranks #6.
USDC is larger, with $73.70B in circulation vs $4.36B for USD1. That's roughly 16.9ร 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. USDC and USD1 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? USDC is available on 157 chains and USD1 on 8. 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.