United Stables vs Solstice USX โ side-by-side comparison of supply, chains, backing, and peg data.
Over the last 30 days U supply moved +17.4% and USX -2.1% โ U grew faster. Both held within about 10 bps of target across the same window.
| Metric | U | USX |
|---|---|---|
| USD circulation value | $1.21B | $506.6M |
| Rank (by USD value) | #15 | #20 |
| Peg | USD | USD |
| Mechanism | crypto-backed | crypto-backed |
| Backing | Stablecoin basket | Overcollateralized CDP |
| Chains deployed | 3 | 1 |
| Primary chain | BSC | Solana |
| CoinGecko | View โ | View โ |
Both track USD, so they compete for the same use cases. U holds stablecoin basket; USX holds overcollateralized cdp. U ranks #15 by USD value and USX ranks #20.
U is larger, with $1.21B in circulation vs $506.6M for USX. That's roughly 2.4ร 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 crypto-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. U and USX 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? U is available on 3 chains and USX on 1. 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.