I just looked at the recent data, and the performance of the US spot Bitcoin ETF this week has indeed been impressive. In just three days, it attracted $1.1 billion in funds, a growth rate rarely seen in the past six years. It seems institutional investors' interest in Bitcoin has returned.

This large-scale capital inflow usually indicates strong buying pressure in the market, especially from traditional financial institutions. Interestingly, this also reflects the increasing importance of crypto assets within the entire investment ecosystem, as the wealth effects of Bitcoin and other digital assets continue to attract more attention.

If this trend continues, this week could really become a significant week in Bitcoin ETF history. It's worth keeping an eye on the subsequent capital flows.