币界网报道:BlackRock's spot Bitcoin ETF (IBIT) has surpassed $5 billion in assets under management (AUM) in just 30 trading days, setting a record as the fastest-growing ETF in history. The fund reached this milestone faster than the previous record-holder, State Street's SPDR Gold Shares (GLD), which took over two years to achieve the same AUM. IBIT's rapid growth highlights strong institutional demand for Bitcoin exposure, with daily inflows averaging $200 million. Analysts attribute this surge to BlackRock's reputation and the growing acceptance of Bitcoin as a legitimate asset class. The ETF's success comes amid a broader crypto market rally, with Bitcoin recently hitting all-time highs above $70,000.