Bitcoin ETFs Are Now BlackRock’s Top Revenue Source, Exec Says

Cristiano Castro, BlackRock Brazil's director of business development, announced that the firm's Bitcoin ETFs have become its most profitable product line, a development he called a "big surprise." The U.S.-listed spot Bitcoin ETF, IBIT, launched in January 2024, reached $70 billion in assets in a record 341 days and, as of October 2025, had generated an estimated $245 million in annual fees. Total allocations across BlackRock's Bitcoin ETFs, including IBIT and Brazil's IBIT39, are nearing $100 billion. Castro noted that IBIT's growth was fueled by BlackRock's global network and institutional interest following U.S. regulatory approval, allowing the ETF to hold over 3% of Bitcoin's total supply. He also addressed recent outflows as normal behavior for retail investors reacting to price drops, emphasizing that ETFs are liquid tools designed for flow management.

(Source：CoinDesk)