The funds tracking both assets recorded a perfect week of net inflows only.
In a sudden but very impactful change in investor behavior, the spot exchange-traded funds tracking the largest cryptocurrency attracted almost $2 billion in fresh funds in the past five business days alone.
The Ethereum counterparts also set a multi-month peak, gaining nearly $700 million within the same timeframe.
Spot BTC ETFs Attract $1.92B
The week started on the right foot, with almost $300 million in net inflows on Monday and another $189.30 million on Tuesday. However, investors picked up the pace on Wednesday after the US Treasury Department announced it would double the maximum size of liquidity-support buybacks for longer-dated government debt, raising them from $2 billion to at least $4 billion per operation.
This had a dramatic effect on risk-on assets like crypto and investor appetite. The spot Bitcoin ETF net inflows skyrocketed to $517 million on that day and then exceeded $606 million on Thursday, the best single-day performance since May 1. Another $307.45 million entered the funds on Friday, ending the perfect green-only week, in which the financial vehicles attracted a total of $1.92 billion.
The total inflows have rocketed from under $51.8 billion at the end of the previous week to over $53.7 billion on August 21.
This made last week the best in terms of net inflows since the one that ended on October 10, when investors poured in $2.71 billion. Recall that this was the trend-changer, as BTC experienced one of its worst crashes at the time, resulting in over $19 billion in liquidations within 24 hours.
Naturally, these ETF inflows were among the reasons behind the underlying asset’s spectacular price revival in the past week. It traded below $65,000 before the Treasury Department’s announcement but skyrocketed by over $15,000 to nearly $80,000 by Friday.
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ETH ETFs on a Roll, Too
The landscape around the spot Ethereum ETFs is rather similar, as they have also attracted the most funds since October 2025. In their case, the actual numbers were just under $700 million. And, the net inflows saw a major uptick after the Wednesday announcement, going from $30.85 million on Monday and $71.47 million on Tuesday to $189.15 million on Wednesday, $220.77 million on Thursday, and $185 million on Friday.
The cumulative total net inflows have risen from $11.45 billion at the end of last week to $12.15 billion on August 21. Expectedly, ETH’s price also went on a highly impressive run, surging from $1,900 on Wednesday to over $2,500 on Saturday morning, where it was stopped and now sits $100 lower. The weekly gains, though, are over 28%.



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