BlackRock's Bitcoin ETF stands out as the only fund with negative returns among the top 20 global ETFs by fund inflows, according to BlackRock's Head of Digital Assets. Despite this, the ETF has attracted $26 billion in inflows, ranking fourth globally. The executive highlighted that 90% of investors are buying the dip, indicating a focus on long-term accumulation, while only 10% are involved in short-term arbitrage trades.