USDCvsBUIDL
USD Coin vs BlackRock USD — side-by-side comparison of supply, chains, backing, and peg data.
Side-by-side
USDC — USD Coin
BUIDL — BlackRock USD
30-day peg stability dotted line = target · both charts share one scale
What the last 30 days show
Over the last 30 days USDC supply moved -1.6% and BUIDL +13.7% — BUIDL grew faster. BUIDL held the tighter band: worst deviation 0 bps against 5 bps.
Key differences
- USDC is roughly 26.7× larger than BUIDL by USD circulation value ($72.21B vs $2.71B).
- USDC ranks #2 while BUIDL ranks #10 among all tracked stablecoins.
- Both are pegged to the same currency (USD), so they compete directly for the same use cases.
- Both are fiat-backed stablecoins, so the mechanism is not what separates them.
- Reserves differ — USDC holds cash & t-bills, BUIDL holds tokenized us treasuries (blackrock).
- USDC is deployed on 154 chains — much broader coverage than BUIDL's 8.
Full comparison table
| Metric | USDC | BUIDL |
|---|---|---|
| USD circulation value | $72.21B | $2.71B |
| Rank (by USD value) | #2 | #10 |
| Peg | USD | USD |
| Mechanism | fiat-backed | fiat-backed |
| Backing | Cash & T-bills | Tokenized US Treasuries (BlackRock) |
| Chains deployed | 154 | 8 |
| Primary chain | Ethereum | Ethereum |
| Issuer | Circle | BlackRock (tokenized by Securitize) |
| CoinGecko | View → | View → |
Frequently Asked Questions
What's the main difference between USDC and BUIDL?
Both track USD, so they compete for the same use cases. USDC holds cash & t-bills; BUIDL holds tokenized us treasuries (blackrock). USDC ranks #2 by USD value and BUIDL ranks #10.
Which is bigger, USDC or BUIDL?
USDC is larger, with $72.21B in circulation vs $2.71B for BUIDL. That's roughly 26.7× the size.
Is USDC safer than BUIDL?
Neither is inherently safer. Safety turns on reserve composition, issuer transparency, redemption rights and regulatory oversight — 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.
Can I convert between USDC and BUIDL?
Yes. USDC and BUIDL 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 USDC or BUIDL?
The right choice depends on your use case. Consider: which chain do you need? USDC is available on 154 chains and BUIDL 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.