Recently, the total holdings of US spot Bitcoin Exchange-Traded Funds (ETFs) have seen significant growth, surpassing the 900,000 BTC mark. At the time of writing, the holdings reached 908,000 BTC, accounting for 4.6% of the current total supply of Bitcoin. Additionally, the on-chain value of these holdings has reached a high level, estimated at around $61.2 billion. This trend reflects the growing interest of investors in Bitcoin as an investment tool, particularly in the US market. Moreover, data shows that over the past week, US spot Bitcoin ETFs received approximately $1.08 billion in capital inflows, bringing the cumulative inflows since launch to $17.3 billion. These figures indicate that Bitcoin is increasingly gaining prominence as an asset class in financial markets.