US-listed spot Bitcoin and the Ethereum Exchange Trade Fund (ETF) rekindled investor enthusiasm and drew in net inflows of over $4.5 billion last week.
A strong reversal ended a short runoff period and set the tone for October. Month traders often call it “up-to-bar” because of their history of bullish crypto performance.
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Bitcoin and Ethereum ETFs draw in $4.5 billion
Data from SOSO values marks the second largest weekly total on record, with a net inflow of about $3.2 billion, following the peak of $3.37 billion in November 2024.
During the trading period, ETF volume skyrocketed to around $26 billion. The rapid increase has led to stronger investor participation and renewed confidence that the accumulation stage may be ongoing.
BlackRock’s iShares Bitcoin Trust (IBIT) controlled the inflow at $1.78 billion, while Fidelity’s FBTC controlled at $692 million. Ark 21Shares added $254 million, while Bitwise won an additional $212 million.
Collective surges reflect the growing institutional convictions and renew the retail interest in obtaining Bitcoin exposure through regulated investment products.
Meanwhile, Ethereum ETF reflected this momentum, attracting $1.29 billion inflows and generating nearly $10 billion in trading volume each week.
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BlackRock’s ETHA fund has won $687 million inflows and Fidelity’s $305 million. Grayscale posted $175 million, while Bitise added $83 million.
Together, these figures show that investors are positioning for a broader market recovery rather than focusing on a single asset.
Institutional demand will rekindle crypto rally
The inflow, which was synchronized with both Bitcoin and Ethereum ETFs last week, became one of the busiest trading periods in recent memory.
This pattern suggests that the institution’s portfolio is returning to digital assets, seeking to capture the possibility of early rises as macroemotions stabilize.
That new optimism helped push Bitcoin to its fresh, highest heights above $125,000. ETF-led demand has reinforced the belief that it does more than encourage short-term speculation, and may establish the foundation for a new market cycle.
The Crypto Research Fits 10x survey noted that the scale of these influxes is unprecedented. It added that subtle changes in institutional allocation strategies point to deeper structural support than previous meetings.
“Behind the scenes, billions of dollars of ETF inflows and quiet changes in institutional behavior suggest that this breakout may have deeper roots. Even regulators are fueling the fires, and there is new tax guidance that caught the corporate Treasury Department off guard.”

