US spot Bitcoin and Ether ETFs recorded their strongest combined inflow day since October 2025, signaling renewed demand for regulated crypto investment products.
Bitcoin ETFs drew almost $1 billion, while Ether ETFs attracted nearly $270 million on Monday. The buying came as Bitcoin climbed above $87,000 for the first time since January. The inflows also marked a sharp shift after months of heavy redemptions across the crypto ETF market.
US spot Bitcoin ETFs recorded $998.95 million in net inflows on September 21, according to SoSoValue data. Spot Ether ETFs added another $269.98 million during the same session.
The Bitcoin ETF figure marked the largest daily inflow since October 6, 2025. Ether ETFs recorded their biggest daily haul since October 7, 2025.
The combined flows also coincided with a broader recovery across major cryptocurrencies. Bitcoin briefly reached around $87,300 on Monday before trading near $86,000 early Tuesday.
BlackRock leads Bitcoin ETF inflows
BlackRock’s iShares Bitcoin Trust (IBIT) led the Bitcoin ETF inflows with $381.4 million on Monday. ARK 21Shares Bitcoin ETF (ARKB) followed with $289.1 million, while Fidelity’s Wise Origin Bitcoin Fund (FBTC) attracted $238.8 million.
Grayscale, Bitwise and Morgan Stanley also recorded positive flows across the funds they operate.
Monday’s inflow surpassed the previous 2026 daily record of $844 million, set on January 14. However, the figure remained below the $1.2 billion recorded by Bitcoin ETFs on October 6, 2025.
Other major crypto ETFs saw mixed activity. Spot Solana ETFs recorded $26.1 million in net inflows, while XRP ETFs recorded zero net flows.
Crypto ETFs inflow data. Source: SoSoValue.
Despite Monday’s surge, US spot Bitcoin ETFs remain about $464 million down for the year. The funds also suffered roughly $4.5 billion in redemptions during June.
However, flows improved in August, when Bitcoin ETFs recorded $3.52 billion in net inflows. Since their launch on January 11, 2024, US spot Bitcoin ETFs have accumulated about $55.6 billion in net inflows.
Bitcoin breaks above key market level
The latest ETF buying came alongside a sharp move across the broader crypto market. Ether gained nearly 11% over the past week as Bitcoin pushed above $87,000.
CoinGlass data showed more than $1.06 billion in crypto liquidations over 24 hours. Short positions accounted for about $844 million of those liquidations, indicating that the rally also triggered a short squeeze.
CryptoQuant analyst Julio Moreno said Bitcoin had moved above its 365-day moving average. Moreno described the level as the final confirmation he wanted before identifying a new bull market.
Analysts also linked the rebound to improving macroeconomic conditions. Softer oil prices and easing Treasury yields have supported risk assets. A scheduled meeting between US President Donald Trump and Chinese President Xi Jinping has also drawn attention from markets.
Dominick John, an analyst at Zeus Research, said the next phase depends on whether the inflows continue. He told The Block that traders are watching Bitcoin hold above $85,000 and Ether above $2,700. Sustained spot ETF inflows, he added, would signal continued underlying demand.
