According to the source, BlackRock is expanding tokenization capabilities through the BlackRock USD Institutional Digital Liquidity Fund BUIDL on Ethereum and a strategic investment in Securitize announced in 2024. Source: BlackRock press release 2024-03-20; Securitize announcement 2024-04. The firm’s spot Bitcoin and Ethereum ETFs received U.S. approvals in 2024 and have attracted significant assets and daily primary-market activity that traders can monitor via issuer disclosures. Source: U.S. SEC orders 2024; iShares ETF websites 2024. BUIDL operates on Ethereum mainnet with Securitize as transfer agent, making Ethereum the settlement and record-keeping layer for this tokenized fund. Source: BlackRock press release 2024-03-20; Securitize materials 2024. BlackRock states tokenization is intended to improve settlement efficiency, transparency, and 24/7 transferability for traditional assets on blockchain infrastructure. Source: BlackRock press release 2024-03-20. For trading context, iShares publishes daily flow and holdings files for the iShares Bitcoin Trust IBIT and the iShares Ethereum Trust, and BUIDL activity is observable on-chain, allowing traders to track ETF creations or redemptions and on-chain fund movements. Source: iShares ETF websites 2024; Etherscan contract data for BUIDL.