BlackRock's iShares Bitcoin Trust (IBIT) has achieved a notable position in the global ETF market, ranking sixth in net capital inflows for 2025. Despite delivering a negative return, the fund attracted $25 billion in inflows, according to Bloomberg's Eric Balchunas. This positions it among the top-performing ETFs globally, with Vanguard's S&P 500 ETF (VOO) leading the pack with over $145 billion in inflows. However, the broader Bitcoin ETF market faced challenges, experiencing $497 million in weekly outflows by December 19. This trend coincides with a significant decline in Bitcoin's value, which has dropped 30% from its peak, reflecting the volatile nature of cryptocurrency investments.