[BlackRock Executive: Bitcoin ETF Has Become the Company's Largest Revenue Source] BlockBeats News, December 1, according to Cristiano Castro, BlackRock's Director of Business Development in Brazil, BlackRock's Bitcoin ETF has become the company's most profitable product line. Data shows that its net inflow exceeded $52 billion in its first year, far surpassing all other ETFs launched over the past decade. It is estimated that by October 2025, IBIT's annual fee revenue will reach approximately $245 million. The rapid growth of IBIT is attributed to the support of BlackRock's global distribution network and a wave of institutional interest following the approval of spot Bitcoin ETFs by U.S. regulators. Currently, it holds over 3% of Bitcoin's total supply. Subsequently, BlackRock has launched various Bitcoin-related products, including exchange-traded products (ETPs) overseas. Castro responded to recent outflows from Bitcoin funds, stating that such outflows are expected given that retail investors typically react to price declines. 'ETFs are a very liquid and powerful tool. They are designed to help people manage cash flows.'