BlackRock's spot Bitcoin ETF, launched in January 2024, has achieved impressive results. Assets under management (AUM) of iShares Bitcoin Trust (IBIT) amount to $58.57 billion, which is nearly double the AUM of iShares Gold Trust, achieved over 20 years. IBIT has become the fastest ETF to reach $50 billion AUM in 228 days, amid an increase in the price of bitcoin to $108,200.