BUIDLvsA7A5
BlackRock USD vs A7A5 — side-by-side comparison of supply, chains, backing, and peg data.
Side-by-side
BUIDL — BlackRock USD
A7A5 — A7A5
30-day peg stability dotted line = target
Peg history unavailable.
What the last 30 days show
Over the last 30 days BUIDL supply moved -20.2% and A7A5 +18.8% — A7A5 grew faster.
Key differences
- BUIDL is roughly 4.1× larger than A7A5 by USD circulation value ($2.25B vs $544.7M).
- BUIDL ranks #11 while A7A5 ranks #19 among all tracked stablecoins.
- BUIDL is pegged to USD while A7A5 tracks RUB — they serve different currency markets.
- Both are fiat-backed stablecoins, so the mechanism is not what separates them.
- Reserves differ — BUIDL holds tokenized us treasuries (blackrock), A7A5 holds rub deposits in banks.
- BUIDL is deployed on 8 chains — much broader coverage than A7A5's 2.
- Primary chain differs — most BUIDL supply lives on Solana, while most A7A5 supply is on Tron.
Full comparison table
| Metric | BUIDL | A7A5 |
|---|---|---|
| USD circulation value | $2.25B | $544.7M |
| Rank (by USD value) | #11 | #19 |
| Peg | USD | RUB |
| Mechanism | fiat-backed | fiat-backed |
| Backing | Tokenized US Treasuries (BlackRock) | RUB deposits in banks |
| Chains deployed | 8 | 2 |
| Primary chain | Solana | Tron |
| Issuer | BlackRock (tokenized by Securitize) | — |
| CoinGecko | View → | View → |
Frequently Asked Questions
What's the main difference between BUIDL and A7A5?
BUIDL is USD-pegged and A7A5 tracks RUB, so they serve different currency markets and their market caps are not directly comparable. BUIDL holds tokenized us treasuries (blackrock); A7A5 holds rub deposits in banks.
Which is bigger, BUIDL or A7A5?
BUIDL is larger, with $2.25B in circulation vs $544.7M for A7A5. That's roughly 4.1× the size.
Is BUIDL safer than A7A5?
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 BUIDL and A7A5?
Yes. BUIDL and A7A5 both trade on major centralized and decentralized exchanges. Since they track different currencies (USD vs RUB), conversion follows the underlying FX rate. Direct swap protocols on Ethereum, Solana, and other chains offer the tightest spreads.
Should I choose BUIDL or A7A5?
The right choice depends on your use case. Consider: which chain do you need? BUIDL is available on 8 chains and A7A5 on 2. 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.