Leading asset management firm BlackRock has significantly expanded its Bitcoin holdings, purchasing a net total of $1.57 billion worth of Bitcoin over the past month through its Bitcoin funds. The latest data from Arkham Intelligence shows BlackRock now holds 801,769 BTC, valued at approximately $67.87 billion. Bitcoin constitutes over 87% of BlackRock's tracked crypto portfolio, with Ethereum following at $10.06 billion. The firm's latest single purchase of $195.6 million worth of BTC occurred after Bitcoin rebounded above $84,000, suggesting renewed institutional interest.