Brief
BlackRock USD Institutional Digital Liquidity Fund. $2.16B AUM (rwa.xyz, Oct 15, 2026), ~14% of the tokenized treasury market. Circle's USYC overtook in January 2026, ending BUIDL's run from a 46% peak. Assigned Moody's Aaa-mf in May 2026, the top of Moody's money-market-fund scale and one of the first tokenized funds to reach it (jointly with Fidelity International's tokenized fund). Tokenized by Securitize. Launched on Ethereum, now on Avalanche, Arbitrum, Aptos, BNB Chain, Optimism, Polygon, and Solana. Tradable on UniswapX, accepted as collateral on Binance, Crypto.com, Deribit, and OKX.
Primary sources
Checks cover the claims listed below. Other details may still need review.
- Circle: BUIDL share transfers for USDC (opens in a new tab)
Checked
- BUIDL investors can transfer shares to Circle in exchange for USDC; this is an off-ramp, not USDC reserve backing.
- Standard Chartered: BUIDL collateral framework (opens in a new tab)
Checked
- April 28, 2026 live framework for eligible OKX institutional clients; Standard Chartered custodies off-exchange BUIDL tokens, not the fund's underlying assets.
Recent activity
Latest moves on the changelog feed.
- Apr 15, 2026WIRED
BUIDL → Uniswap (UniswapX trading).
Snapshot
Key terms and identifiers.
- Asset value
- $2.25B
- NAV
- $1.00
- Fee
- 0.50%
- Custodian
- BNY Mellon
- Min investment
- $5M
- Structure
- BVI fund, Reg D / Reg S
- Chains
- Ethereum, Solana, BNB Chain, Avalanche, Optimism, Arbitrum, Aptos, Polygon
- NAV frequency
- Daily
- Investor type
- Qualified Purchaser
- Spec type
- fund
- As of
- 2026-06
- Data source
- securitize
- Asset classes
- Treasuries
- Token standards
- erc-20
- Regulatory
- sec-reg-d, sec-reg-s
- Jurisdiction
- BVI
- Analytics
- app.rwa.xyz/assets/BUIDL
Milestones
How this player got here.
- Apr 2026Listed on OKX targeting institutional collateral
- Apr 2026BUIDL → Uniswap (UniswapX trading).
- Feb 2026Tradable on UniswapX. BlackRock purchases UNI tokens
- Jan 2026Overtaken by Circle's USYC as largest tokenized treasury fund
- Nov 2025Expanded to BNB Chain. Binance accepts as trading collateral
- Sep 2025RLUSD off-ramp enabled via Ripple/Securitize
- Jun 2025Accepted as collateral on Crypto.com and Deribit
- Mar 2025Crossed $1B AUM. Expanded to Solana and Aptos
- Jan 2025Wormhole integrated as cross-chain interoperability provider
- Sep 2024Expanded to Polygon, Arbitrum, Optimism, Avalanche
- Mar 2024Launched on Ethereum via Securitize
Connections
Who they build with, build on, integrate with.
Dependency
Where this player builds on, integrates, or relies on others.
- BlackRockIntegratesIssuer
- SecuritizeIntegratesTokenization platform
- EthereumBuilds onPrimary chain
- ArbitrumBuilds on
- AvalancheBuilds on
- PolygonBuilds on
- SolanaBuilds on
- AptosBuilds on
- WormholeIntegratesCross-chain interoperability
- BNB ChainBuilds on
- OptimismBuilds on
- UniswapIntegratesUniswapX trading
- BNY MellonCustodiesFund custodian
- Standard CharteredCustodiesOff-exchange collateral custody
- Anchorage DigitalCustodiesCustodian
- CoinbaseCustodiesCustody partner
- BitGoCustodiesQualified custodian for holders
