BlackRock in-house portfolio boosts IBIT Bitcoin ETF exposure by 25%

BlackRock’s increasing investment in its own Bitcoin ETF, the iShares Bitcoin Trust (IBIT), highlights the firm’s growing confidence in the cryptocurrency. As of March 31, 2025, BlackRock’s Strategic Income Opportunities Portfolio held 2,123,592 IBIT shares, valued at $99.4 million—a significant increase from the 1,691,143 shares held at the end of 2024. This investment reflects a broader diversification strategy within the primarily bond-focused portfolio, aiming to enhance returns while preserving capital.

IBIT, one of 11 spot Bitcoin ETFs approved by the SEC in January 2024, has quickly become the market leader, boasting over $72 billion in net assets. Its success is significantly outpacing that of its closest competitor, the Fidelity Wise Origin Fund (FBTC), by a margin of $50 billion.

The sustained growth in Bitcoin ETF demand, particularly evident in May 2025’s record-breaking inflows exceeding $1.5 billion in just two days, is largely driven by IBIT’s consistent net buys, frequently exceeding $500 million daily since April 9th. These inflows reflect asset managers’ efforts to meet the surging investor demand.

Bitwise Asset Management, using the success of gold ETFs as a comparison, projects that Bitcoin ETF inflows could reach $120 billion in 2025 and potentially double to $300 billion by 2026. The initial performance of Bitcoin ETFs has dramatically surpassed that of their gold ETF counterparts, suggesting this trend will continue.

Despite the significant retail and institutional participation in spot Bitcoin ETFs, a substantial untapped market remains: the wealth management platforms and wirehouses of major financial institutions. This presents a significant opportunity for future growth in the Bitcoin ETF sector. The continued expansion of BlackRock’s holdings, coupled with the overall market trends, paints a picture of continued strong growth in the Bitcoin ETF market.