BUIDLvsUSDD
BlackRock USD vs USDD — side-by-side comparison of supply, chains, backing, and peg data.
Side-by-side
BUIDL — BlackRock USD
USDD — USDD
30-day peg stability dotted line = target · both charts share one scale
What the last 30 days show
Over the last 30 days BUIDL supply moved +13.7% and USDD +7.9% — BUIDL grew faster. BUIDL held the tighter band: worst deviation 0 bps against 29 bps.
Key differences
- BUIDL is roughly 1.8× larger than USDD by USD circulation value ($2.71B vs $1.51B).
- BUIDL ranks #10 while USDD ranks #13 among all tracked stablecoins.
- Both are pegged to the same currency (USD), so they compete directly for the same use cases.
- BUIDL is a fiat-backed stablecoin; USDD is crypto-backed. Different mechanism, different failure modes.
- Reserves differ — BUIDL holds tokenized us treasuries (blackrock), USDD holds algo + trx collateral.
- BUIDL is deployed on 8 chains — much broader coverage than USDD's 4.
- Primary chain differs — most BUIDL supply lives on Ethereum, while most USDD supply is on Tron.
Full comparison table
| Metric | BUIDL | USDD |
|---|---|---|
| USD circulation value | $2.71B | $1.51B |
| Rank (by USD value) | #10 | #13 |
| Peg | USD | USD |
| Mechanism | fiat-backed | crypto-backed |
| Backing | Tokenized US Treasuries (BlackRock) | Algo + TRX collateral |
| Chains deployed | 8 | 4 |
| Primary chain | Ethereum | Tron |
| Issuer | BlackRock (tokenized by Securitize) | TRON DAO Reserve |
| CoinGecko | View → | View → |
Frequently Asked Questions
What's the main difference between BUIDL and USDD?
Both track USD, so they compete for the same use cases. BUIDL holds tokenized us treasuries (blackrock); USDD holds algo + trx collateral. BUIDL ranks #10 by USD value and USDD ranks #13.
Which is bigger, BUIDL or USDD?
BUIDL is larger, with $2.71B in circulation vs $1.51B for USDD. That's roughly 1.8× the size.
Is BUIDL safer than USDD?
Neither is inherently safer. Safety turns on reserve composition, issuer transparency, redemption rights and regulatory oversight — none of which this page audits. BUIDL uses a fiat-backed model; USDD uses a crypto-backed one. Read each issuer's most recent reserve attestation before choosing.
Can I convert between BUIDL and USDD?
Yes. BUIDL and USDD 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 BUIDL or USDD?
The right choice depends on your use case. Consider: which chain do you need? BUIDL is available on 8 chains and USDD 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.