Strong Net Inflows Recorded in Bitcoin and Ethereum Spot ETFs Alongside the Rise in BTC! Here’s All the Data
Bitcoin spot ETFs traded in the US saw a net inflow of $999 million on September 21. According to SoSoValue data, this marked the third consecutive day of net inflows into Bitcoin ETFs. Black
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AnonymousCryptoCompass newsroom
September 22, 2026
2 min read
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Bitcoin spot ETFs traded in the US saw a net inflow of $999 million on September 21. According to SoSoValue data, this marked the third consecutive day of net inflows into Bitcoin ETFs.
BlackRock’s IBIT fund saw the highest daily net inflow. IBIT received $381 million, bringing its total net inflow since its inception to $64.506 billion. Second place went to ARKB, issued by Ark Invest and 21Shares. ARKB experienced a net inflow of $289 million in a single day, raising its cumulative net inflow to $1.370 billion.
According to the data, the total net asset value of Bitcoin spot ETFs was recorded at $110.135 billion. The ratio of total ETF assets to Bitcoin’s total market capitalization is 6.3%, while the total net inflow since the products’ inception has reached $56.160 billion.
Ethereum spot ETFs also saw strong capital movement. On September 21, a total net inflow of $270 million was recorded into Ethereum spot ETFs.
BlackRock’s ETHA fund saw the highest daily inflow among Ethereum ETFs. ETHA experienced a net inflow of $110 million, bringing its historical total net inflow to $13.067 billion. Fidelity’s FETH fund came in second with a net inflow of $72.958 million, bringing its total net inflow to $2.320 billion.
Ethereum spot ETFs recorded a total net asset value of $17.817 billion, representing 5.24% of the total market capitalization, and a cumulative net inflow of $13.520 billion.
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