PayPal USD vs Solstice USX โ side-by-side comparison of supply, chains, backing, and peg data.
Supply moved almost identically over the last 30 days: PYUSD -2.4%, USX -2.1%. PYUSD held the tighter band: worst deviation 5 bps against 10 bps.
| Metric | PYUSD | USX |
|---|---|---|
| USD circulation value | $2.78B | $506.6M |
| Rank (by USD value) | #9 | #20 |
| Peg | USD | USD |
| Mechanism | fiat-backed | crypto-backed |
| Backing | Cash & T-bills (PayPal) | Overcollateralized CDP |
| Chains deployed | 19 | 1 |
| Primary chain | Ethereum | Solana |
| Issuer | Paxos Trust Company (for PayPal) | โ |
| CoinGecko | View โ | View โ |
Both track USD, so they compete for the same use cases. PYUSD holds cash & t-bills (paypal); USX holds overcollateralized cdp. PYUSD ranks #9 by USD value and USX ranks #20.
PYUSD is larger, with $2.78B in circulation vs $506.6M for USX. That's roughly 5.5ร 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. PYUSD uses a fiat-backed model; USX uses a crypto-backed one. Read each issuer's most recent reserve attestation before choosing.
Yes. PYUSD 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? PYUSD is available on 19 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.