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-exchange 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 exchange’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-exchange. "Our institutional clients have asked for more interest-bearing stable assets they can hold as collateral while actively trading on our exchange," Chen said. "BUIDL gives them an alternative that combines yield with flexibility."
Investor Takeaway
The integration of BUIDL with Binance broadens the use of tokenized Treasuries in real trading environments, bringing traditional yield instruments directly into crypto collateral systems.
BUIDL’s Growing Multi-Chain Footprint
The fund, issued by Securitize, already operates on the Ethereum mainnet and across Layer 1 and Layer 2 networks including Aptos, Avalanche, Solana, Arbitrum, Polygon, and Optimism. By launching on BNB Chain, BlackRock connects its tokenized product to a blockchain closely tied to Binance’s trading and custody infrastructure, offering faster 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 seen a surge in real-world asset activity this year, helped by the growth of the derivatives platform Aster and integrations with Binance Alpha and Binance Wallet. Real-world asset issuer Ondo Finance 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 tokenized U.S. Treasuries have become one of the fastest-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
Tokenized Treasuries are moving beyond pilots into exchange collateral and DeFi integration — a sign that institutional adoption is shifting from testing to active use.
Outlook
The collaboration underscores a growing alignment between traditional finance and crypto infrastructure. For Binance, accepting tokenized Treasuries as collateral could attract institutions seeking 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 the digital asset market — the convergence of regulated fund structures with blockchain-based settlement. As major asset managers and exchanges continue to integrate tokenized instruments, the boundary between traditional finance and onchain capital markets is narrowing rapidly.