USDGvsU
Global Dollar vs United Stables — side-by-side comparison of supply, chains, backing, and peg data.
Side-by-side
USDG — Global Dollar
U — United Stables
30-day peg stability dotted line = target · both charts share one scale
What the last 30 days show
Supply moved almost identically over the last 30 days: USDG +17.6%, U +17.4%. U held the tighter band: worst deviation 9 bps against 33 bps.
Key differences
- USDG is roughly 2.8× larger than U by USD circulation value ($3.42B vs $1.21B).
- USDG ranks #7 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.
- USDG is a fiat-backed stablecoin; U is crypto-backed. Different mechanism, different failure modes.
- Reserves differ — USDG holds cash reserves (paxos), U holds stablecoin basket.
- USDG is deployed on 6 chains — much broader coverage than U's 3.
- Primary chain differs — most USDG supply lives on X Layer, while most U supply is on BSC.
Full comparison table
| Metric | USDG | U |
|---|---|---|
| USD circulation value | $3.42B | $1.21B |
| Rank (by USD value) | #7 | #15 |
| Peg | USD | USD |
| Mechanism | fiat-backed | crypto-backed |
| Backing | Cash reserves (Paxos) | Stablecoin basket |
| Chains deployed | 6 | 3 |
| Primary chain | X Layer | BSC |
| Issuer | Paxos Trust Company | — |
| CoinGecko | View → | View → |
Frequently Asked Questions
What's the main difference between USDG and U?
Both track USD, so they compete for the same use cases. USDG holds cash reserves (paxos); U holds stablecoin basket. USDG ranks #7 by USD value and U ranks #15.
Which is bigger, USDG or U?
USDG is larger, with $3.42B in circulation vs $1.21B for U. That's roughly 2.8× the size.
Is USDG 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. USDG 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 USDG and U?
Yes. USDG 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 USDG or U?
The right choice depends on your use case. Consider: which chain do you need? USDG is available on 6 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.