UvsOUSD
United Stables vs Open USD — side-by-side comparison of supply, chains, backing, and peg data.
Side-by-side
U — United Stables
OUSD — Open USD
30-day peg stability dotted line = target · both charts share one scale
What the last 30 days show
OUSD held the tighter band: worst deviation 3 bps against 9 bps.
Key differences
- U is roughly 2.2× larger than OUSD by USD circulation value ($1.53B vs $698.8M).
- U ranks #15 while OUSD ranks #17 among all tracked stablecoins.
- Both are pegged to the same currency (USD), so they compete directly for the same use cases.
- U is a crypto-backed stablecoin; OUSD is fiat-backed. Different mechanism, different failure modes.
- U reports stablecoin basket in reserve. We do not track a published reserve breakdown for OUSD.
- Chain coverage is comparable: U on 4 chains, OUSD on 4.
- Primary chain differs — most U supply lives on BSC, while most OUSD supply is on Tempo.
Full comparison table
| Metric | U | OUSD |
|---|---|---|
| USD circulation value | $1.53B | $698.8M |
| Rank (by USD value) | #15 | #17 |
| Peg | USD | USD |
| Mechanism | crypto-backed | fiat-backed |
| Backing | Stablecoin basket | — |
| Chains deployed | 4 | 4 |
| Primary chain | BSC | Tempo |
| Issuer | United Stables | — |
| CoinGecko | View → | View → |
Frequently Asked Questions
What's the main difference between U and OUSD?
Both track USD, so they compete for the same use cases. U holds stablecoin basket. We track no published reserve breakdown for OUSD. U ranks #15 by USD value and OUSD ranks #17.
Which is bigger, U or OUSD?
U is larger, with $1.53B in circulation vs $698.8M for OUSD. That's roughly 2.2× the size.
Is U safer than OUSD?
Neither is inherently safer. Safety turns on reserve composition, issuer transparency, redemption rights and regulatory oversight — none of which this page audits. U uses a crypto-backed model; OUSD uses a fiat-backed one. Read each issuer's most recent reserve attestation before choosing.
Can I convert between U and OUSD?
Yes. U and OUSD 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 U or OUSD?
The right choice depends on your use case. Consider: which chain do you need? U is available on 4 chains and OUSD on 4. 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.