Binance to Accept BlackRock’s BUIDL as Off-Exchange Collateral
World’s Largest Asset Manager Expands BUIDL Reach
BlackRock has extended its USD Institutional Digital Liquidity Fund (BUIDL) to BNB Chain, deepening its partnership with Binance as tokenized Treasuries continue to gain traction among institutional investors. The move makes BUIDL — now managing more than $2.5 billion — available as off-platform collateral for trading on Binance.
The companies said the integration allows professional traders to deploy capital more efficiently while maintaining exposure to tokenized U.S. Treasuries. “This further establishes BUIDL’s role as a foundational building block of onchain finance,” BlackRock and Binance said in a joint statement.
Binance Adds Tokenized Treasuries to Collateral System
According to Catherine Chen, head of VIP and Institutional at Binance, BUIDL is being linked with the platform’s triparty banking agents — intermediaries that handle secured funding between counterparties — and with Ceffu, Binance’s crypto custody partner. The setup allows BUIDL holders to post the fund’s tokens as collateral for trading without moving assets on-platform.
“Our have asked for more interest-bearing stable assets they can hold as collateral while actively trading on our platform,” Chen said. “BUIDL gives them an alternative that combines yield with flexibility.”
Investor Takeaway
BUIDL’s Growing Multi-Chain Footprint
The fund, issued by Securitize, already operates on the ETH mainnet and across Layer 1 and including Aptos, Avalanche, Solana, Arbitrum, Polygon, and Optimism. By launching on BNB Chain, BlackRock connects its closely tied to Binance’s trading and custody infrastructure, offering quicker settlement and lower fees.
BUIDL is structured to maintain a one-to-one peg with the U.S. dollar, functioning similarly to stablecoins but backed by short-term Treasury holdings rather than cash or reserves. The fund distributes yield directly to token holders via blockchain rather than through traditional fund redemptions.
BNB Chain’s Expanding Institutional Activity
BNB Chain has viewn a surge in real-world asset activity this year, assisted by the growth of the derivatives platform Aster and integrations with Binance Alpha and Binance Wallet. has also joined the network, further signaling its appeal for tokenized securities and institutional trading products.
The addition of BUIDL could strengthen BNB Chain’s standing in the onchain finance market, where have become one of the quickest-growing asset classes. Total tokenized Treasury holdings across blockchain platforms have climbed above $1.8 billion this year, led by funds from BlackRock, Franklin Templeton, and Ondo.
Investor Takeaway
Outlook
The collaboration underscores a growing alignment between . For Binance, accepting viewking regulated, yield-bearing assets to back trading positions. For BlackRock, extending BUIDL to a broader network of chains widens access and liquidity across both crypto-native and traditional investor bases.
The launch also reinforces a broader theme in 2025’s — the convergence of regulated fund structures with blockchain-based settlement. As major asset managers and platforms continue to integrate tokenized instruments, the boundary between traditional finance and onchain capital markets is narrowing rapidly.
