According to reports from Wu, BlackRock's BlackRock Strategic Income Opportunities Portfolio continues to increase its holdings in the Bitcoin ETF (IBIT). As of March 31, 2025, the holdings have risen to 2.1236 million shares, valued at $99.4 million. This is a 25% increase from 1.6911 million shares at the end of 2024. Since its approval in January 2024, IBIT has become the largest Bitcoin ETF, with net assets exceeding $72 billion.