BlackRock
InstitutionsActive· US

BlackRock

BUIDL opened the door. Circle walked through it. Whoever wins the stablecoin and exchange-collateral rails wins tokenized treasuries.

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Brief

World's largest asset manager, $13.9T AUM (Q1 2026). BUIDL pioneered the tokenized treasury category. Now ~$2B AUM at 18% market share after Circle's USYC overtook in January 2026. Live on Ethereum, Avalanche, Arbitrum, Aptos, BNB Chain, Optimism, Polygon, and Solana. Tradable on Uniswap, accepted as collateral on Binance, reserve asset in Ethena's USDtb stack.

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Snapshot

Key terms and identifiers.

Asset classes
Treasuries
Regulatory
sec-reg-d, sec-spot-etf, dtcc-settlement-2026
Jurisdiction
US
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Milestones

How this player got here.

  1. Feb 2026BUIDL tradable on Uniswap via approved market makers
  2. Jan 2026Overtaken by Circle's USYC as largest tokenized treasury fund
  3. Nov 2025BUIDL launched on BNB Chain and accepted as Binance institutional collateral
  4. Jan 2025BUIDL crosses $1B AUM
  5. Jul 2024Spot Ethereum ETF approved
  6. Mar 2024BUIDL tokenized fund launched
  7. Jan 2024Spot Bitcoin ETF approved (iShares)
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Connections

Who they build with, build on, integrate with.