比特币 ETF 刚刚迎来了一个月来表现最好的一天，这完全要归功于贝莱德（BlackRock）

The United States spot Bitcoin exchange-traded fund sector recorded its largest single-day inflow in a month, driven almost exclusively by heavy capital allocation into BlackRock's flagship fund. This robust institutional demand offset substantial withdrawals from competing products, highlighting a growing divergence in investor preference among major issuers. Specifically, Fidelity's FBTC and Grayscale's GBTC experienced net outflows of $83.6 million and $54.9 million, respectively, as traders rebalanced positions. The strong inflows underscore continued institutional appetite for regulated cryptocurrency exposure despite broader macroeconomic uncertainties. Market analysts note that BlackRock's growing dominance in the ETF space is consolidating liquidity and shaping price action during US trading hours. This capital rotation demonstrates that institutional investors are increasingly selective about which product issuers they utilize for digital asset exposure.