币界网报道：Bitcoin ETFs have extended their record inflow streak to 12 consecutive days, attracting $3.9 billion in fresh capital as institutional investors continue embracing crypto exposure through regulated vehicles. The sustained demand pushed total assets under management for U.S. spot Bitcoin ETFs past $50 billion, with BlackRock's IBIT leading at $17.2 billion. Analysts note the inflows coincide with Bitcoin's price rebound above $70,000 and come despite outflows from Grayscale's GBTC, which has seen $14.4 billion exit since conversion. The trend highlights growing mainstream acceptance, with daily inflows averaging $326 million during the streak. Market observers suggest the consistent institutional participation signals deeper maturation of crypto markets, as pension funds and asset managers allocate to Bitcoin through SEC-approved products. The inflows have contributed to Bitcoin's 66% year-to-date gain while reducing volatility concerns that previously deterred traditional investors.