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BTC 
ETH The U.S. spot Bitcoin ETF hits the largest single-day net inflow in nearly two years
The U.S. spot Bitcoin exchange-traded fund (ETF) recently recorded the largest single-day net inflow of funds in nearly two years, absorbing 11,500 bitcoins in a single trading session. This means that investors, through regulated Bitcoin funds, have withdrawn more bitcoins from the market in one day than at any time in nearly two years.
The meaning and importance of "net inflow"
The so-called net inflow, sometimes called net inflow, refers to the difference between the funds entering the fund and the funds flowing out of the fund. For example, if $3 billion flows into the fund and $1 billion flows out, the net inflow would be $2 billion. Record one-day data shows that the gap between buyers and sellers within these ETFs has reached its largest level in nearly two years.
Spot Bitcoin ETFs provide ordinary investors with a way to gain Bitcoin exposure without directly holding assets. As these funds absorbed bitcoin at a record rate, they had to support new issues by purchasing bitcoins on the open market, reducing the supply available for trading in the market.
The one-day surge follows a net inflow of US$1.918 billion to the spot Bitcoin ETF last week, suggesting that recent buying is not an isolated event but part of a broader upward trend. Two consecutive weeks of strong performance point to a more sustained shift in investor preferences rather than a situation dictated by only one-day fluctuations.
It is worth noting that the situation has not always been so positive. Earlier this year, the Bitcoin ETF lost 77,000 bitcoins in a quarter as retail investors retreated. The latest readings mark a sharp reversal from that outflow period.
Focus on observation after record single-day data
Abnormal capital flows in a single day do not alone confirm long-term trends. The key question is whether buying continues or reverses in subsequent trading sessions. Observing the total daily net flow over the next few days will help determine whether this is a one-time peak or the beginning of a continuous accumulation phase.
ETF fund flow data and Bitcoin spot prices do not always change in sync. Strong inflows may reflect optimism, but do not guarantee a rise in prices. A variety of factors, including broader market conditions and macroeconomic news, together determine the trading trend of Bitcoin.
For those concerned about the broader ETF landscape, spot Bitcoin, Ethereum and Solana ETFs all achieved net inflows on September 21, providing background information on how demand spreads across multiple regulated crypto products. On the individual issuer side, the Fidelity Bitcoin ETF attracted $310.7 million in funding during a single trading session, highlighting the role of large fund managers in driving most recent demand.
如果您持有比特币或正在考虑首次进行加密货币投资，实际启示如下：创纪录的ETF资金流入是一个信号，表明大型受监管投资者正在买入而非卖出。这并不意味着比特币没有风险，但它表明机构对短期的信心处于异常高的水平。
