Spot Bitcoin and Ethereum exchange-traded funds recorded a perfect week of net inflows, with BTC products attracting $1.92 billion and ETH products nearly $700 million. The surge followed a U.S. Treasury announcement doubling the maximum size of liquidity-support buybacks for longer-dated government debt. Bitcoin’s price climbed from below $65,000 to nearly $80,000, while Ethereum rose from $1,900 to over $2,500, delivering weekly gains above 28%. The inflows marked the best week for Bitcoin ETFs since October 2025 and a multi-month peak for Ethereum ETFs.
In a sudden shift in investor behavior, spot exchange-traded funds tracking the largest cryptocurrency attracted nearly $2 billion in fresh funds over five business days. The week began with almost $300 million in net inflows on Monday and $189.30 million on Tuesday.
The pace accelerated on Wednesday after the U.S. Treasury Department announced it would double the maximum size of liquidity-support buybacks for longer-dated government debt. This had a dramatic effect on risk-on assets like crypto, pushing spot Bitcoin ETF net inflows to $517 million that day.
On Thursday, inflows exceeded $606 million—the best single-day performance since May 1. Another $307.45 million entered the funds on Friday, ending the perfect green-only week with a total of $1.92 billion.
Total inflows rose 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 since the period ending October 10, when investors poured in $2.71 billion.
Naturally, these ETF inflows were among the reasons behind Bitcoin’s spectacular price revival. It traded below $65,000 before the Treasury announcement but skyrocketed by over $15,000 to nearly $80,000 by Friday.
The landscape for spot Ethereum ETFs is similar, attracting the most funds since October 2025 with just under $700 million. Net inflows saw a major uptick after Wednesday, going from $30.85 million on Monday to $220.77 million on Thursday and $185 million on Friday.
The cumulative total net inflows rose from $11.45 billion to $12.15 billion on August 21. Ethereum’s price surged from $1,900 on Wednesday to over $2,500 on Saturday morning, where it now sits $100 lower with weekly gains above 28%.
