BlackRock’s SIO Fund Boosts IBIT Bitcoin ETF Holdings by 14%

BlackRock’s Strategic Income Opportunities (SIO) fund increased its holdings in the iShares Bitcoin Trust (IBIT) by 14% during the quarter from June to September 2025, rising from 2,096,447 shares to 2.39 million and valued at roughly $155.8–$156.0 million as of September 30, 2025. The internal allocation places BlackRock’s own fund among leading institutional accumulators and […]