BlackRock has submitted a filing to the U.S. Securities and Exchange Commission (SEC) for a new tokenized fund structure. According to NS3.AI, this move follows the success of BlackRock's initial tokenized fund, BUIDL, which was developed in collaboration with Securitize and has grown to approximately $2.3 billion in assets. BlackRock has once again chosen Securitize to provide the necessary infrastructure for this new venture. The filing outlines a system where blockchain-based ownership records are integrated with regulated transfer agency and investor onboarding systems.