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BUIDLTokenized U.S. Treasuries·BlackRock·LiveAs of Aug 26, 2026

BlackRock USD Institutional Digital Liquidity Fund

Tokenized institutional money market fund holding U.S. Treasury bills and repo.

Verified Capital Trust Rating
63/ 100
Developing+22 to Verified Capital (≥85)-5 pts / 30d

Deployments

Supply scope: All eight issued chains — Ethereum, Avalanche, Solana, BNB Chain, Polygon, Arbitrum, Optimism, Aptos. Full coverage, reconciles to rwa.xyz.

ETHEthereum· Primary
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0x6a9Da2D710bb9b700aCDe7CB81F10F1ff8C89041

ETHEthereum
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0x7712c34205737192402172409a8F7ccef8aA2AEc

SOLSolana
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GyWgeqpy5GueU2YbkE8xqUeVEokCMMCEeUrfbtMw6phr

AVAXAvalanche
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0x53Fc82F14F009009b440a706e31C9021E1196A2f

POLPolygon
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0x2893ef551B6dD69F661ac00F11D93E5dc5DC0e99

ARBArbitrum
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0xa6525ae43edcD03dC08e775774dcaBD3bB925872

OPOptimism
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0xa1CdaB15bbA75a80dF4089cAfBa013E376957cF5

APTAptos
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0x50038be55be5b964cfa32cf128b5cf05f123959f286b4cc02b86cafd48945f89

BNBBNB Chain
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0x2D5bdc96d9C8aABBdB38c9a27398513E7E5Ef84f

OCB — 01·Rating breakdown
Methodology v1.2 · Aug 26, 2026

BUIDL across four dimensions

DisclosureLIMITING6 / 25
Liquidity17 / 25
Structure20 / 25
Concentration13 / 25
Gap to Verified Capital (≥85)+22

Signal readings

Disclosure tier
regulated quarterly
Attestations / 180d
0
Outstanding supply
$161.19M
Liquidity / supply
0.000%
Top-10 holder pct
90.0%
Custody verification
partial surface

Custody & backing fields are descriptive — published, not scored

OCB — 02·Outstanding supply
$810.93M

BUIDL supply over time

Supply scope: All eight issued chains — Ethereum, Avalanche, Solana, BNB Chain, Polygon, Arbitrum, Optimism, Aptos. Full coverage, reconciles to rwa.xyz.

BUIDL · BlackRock

Outstanding supply (USD)

BUIDL outstanding supply is $810.93M as of Aug 26, 2026. -15.9% over the prior 30 days. (All eight issued chains — Ethereum, Avalanche, Solana, BNB Chain, Polygon, Arbitrum, Optimism, Aptos. Full coverage, reconciles to rwa.xyz..)

ONCHAIN
BENCHMARK
USD DATE $0.00 $500.00M $1.00B $1.50B $2.00B $2.50B Dec 24 Mar 25 May 25 Aug 25 Oct 25 Dec 25 Mar 26 May 26 Aug 26 $810.93M
Source: OCB · BUIDL · onchainbenchmark.comUpdated daily
OCB — 03·Rating history
10 readings

BUIDL trust rating since coverage began

Score history not yet available.

The chart will appear once 4 more daily readings have been collected (10 of 14 so far).

OCB — 04·Coverage gaps + diligence

What closes the gap — and who closes it

Full verification runbook →
Disclosure Quality — yield accuracy
Gap· protocol unmeasurable
  • ·BUIDL pays yield via monthly distribution events (new tokens minted), not price appreciation.
  • ·There is no onchain rate to compare against the published one.
  • ·Score component reflects this structural property.

What would close it

Yield in this instrument is paid by minting new tokens to holders each month rather than rising in price. A daily on-chain rate to measure against the issuer's published one therefore does not exist by design.

Redemption Liquidity
Gap· protocol nature

BUIDL redeems through Securitize authorized channels, not DEX trading. The Liquidity rubric does not apply cleanly to this instrument type.

What would close it

A liquidity rubric tailored to authorized-redemption funds — depth of authorized off-chain redemption channels rather than DEX depth.

Disclosure Quality — issuer disclosure· 2 findings
Gap· issuer undisclosed
  • ·BlackRock / Securitize files SEC Form D / D/A under CIK 0002013810.
  • ·Filing cadence is very low (2 filings since inception).
  • ·No machine-readable per-token attestation feed exists.

What would close it

Issuer publishes a recurring BUIDL reserve attestation at a public URL with at least monthly cadence.

If closed: 45–52 compositePeer (closed): OUSG
attestation sourceSEC EDGAR CIK 0002013810 (Form D only)95% confidence
https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0002013810

BlackRock USD Institutional Digital Liquidity Fund Ltd. files Form D / D/A only. 2 filings since inception — very low cadence relative to other issuers in this tier.

Score impact: attestationFreshness: stub. Scores at regulatory baseline only. Revisit when fund files 10-K or N-CSR.

Verified May 31, 2026· SEC EDGAR company search — CIK 0002013810 confirmed as BlackRock USD Institutional Digital Liquidity Fund Ltd.· View source ↗
governance findingSecuritize DS Protocol admin EOA95% confidence

  • ·contractOwner (item 25, Read as Proxy) returned a plain EOA — no Contract tab on Etherscan.
  • ·Securitize DS Protocol transparent proxy.
  • ·Single EOA controls upgrades.

Score impact: governance sub-signal: 4/10 (single EOA). upgrade_pattern transparent_proxy: 3/15. Total governance: 7/25.

Verified May 31, 2026· Etherscan address page — no Contract tab. Verified via Read as Proxy contractOwner call on BUIDL token.· View source ↗
Holder Concentration· 5 findings
Gap· protocol nature

Top holder is the Securitize custodian address. Single-custodian concentration is structural for BUIDL's permissioned distribution model — not a measurement gap.

What would close it

A concentration rubric for permissioned distribution funds, which treats the issuer's custody address differently from third-party concentration.

holder investigationBUIDL rank-5 holder (~5.69% of supply)60% confidence

No Etherscan label. Funded via OKX. 1 transaction total. Dormant wallet.

Score impact: Kept in.

Verified Jun 1, 2026· Etherscan address page — funded by OKX, 1 txn, dormant.· View source ↗
holder investigationBUIDL rank-1 holder (~30.66% of supply)50% confidence

  • ·No Etherscan label.
  • ·Funded via Coinbase.
  • ·25 transactions.
  • ·$54.5M position.
  • ·Pattern consistent with institutional wallet but not identifiable as protocol infrastructure.
  • ·No Contract tab.

Score impact: Kept in. Below 90% exclusion threshold.

Verified Jun 1, 2026· Etherscan address page — funded by Coinbase, 25 txns. No label.· View source ↗
address exclusionBUIDL TransparentUpgradeableProxy (rank 3, 8.85%)95% confidence

TransparentUpgradeableProxy (OpenZeppelin v5.1.0) source verified on Etherscan Contract tab. Protocol infrastructure contract holding 8.85% of BUIDL supply.

Score impact: Excluded from top-10 concentration calc. Post-exclusion top-10: ~73.93% → 5/25.

Verified Jun 1, 2026· Etherscan Contract tab — OZ TransparentUpgradeableProxy v5.1.0 source verified.· View source ↗
holder investigationBUIDL rank-4 holder (~6.36% of supply)70% confidence

  • ·No Etherscan label.
  • ·Active DeFi user — Morpho Bundler calls observed.
  • ·Retail or institutional DeFi user, not protocol infrastructure.

Score impact: Kept in.

Verified Jun 1, 2026· Etherscan transactions tab — Morpho Bundler interactions observed.· View source ↗
holder investigationBUIDL rank-2 holder (~16.97% of supply)65% confidence

  • ·No Etherscan label.
  • ·Plain EOA.
  • ·Outgoing transactions labeled "BlackRock: BUIDL Token" as counterparty — strongly suggests institutional position managed by BlackRock, but below 90% confidence without a direct label on this address.

Score impact: Kept in. If confirmed as BlackRock treasury/custody this would be excluded, improving the concentration score.

Verified Jun 1, 2026· Etherscan token transfer tab — "BlackRock: BUIDL Token" counterparty label on outgoing txns.· View source ↗
Methodology

BUIDL is scored across the same four dimensions as every other rated instrument in its class — Disclosure Quality, Redemption Liquidity, Structural Trust, and Holder Concentration. Each dimension contributes up to 25 points. The dimension breakdown above shows where the score comes from; the diligence trail shows every verified fact behind it.

Read the full methodology →
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