BlackRock, the world's largest asset manager, is reportedly expanding its push into the crypto derivatives market by advocating for its BUIDL tokens to be accepted as trading collateral. According to a report by Bloomberg, citing anonymous sources, BlackRock, in collaboration with its brokerage partner Securitize, is in talks with major cryptocurrency exchanges, including Binance, Okx, and Deribit, to facilitate the use of BUIDL as collateral for crypto derivatives.