Bitcoin ETFs attract nearly $1 billion in a single day
U.S. spot Bitcoin ETFs recorded $998.95 million in net inflows on September 21, their strongest daily result in the past 11 months. The surge in demand coincided with another Bitcoin rally, with the cryptocurrency briefly climbing above $87,000.
According to The Block, BlackRock’s IBIT led the inflows with $381.4 million. It was followed by Ark & 21Shares’ ARKB with $289.1 million and Fidelity’s FBTC with $238.8 million. Funds from Grayscale, Bitwise, and Morgan Stanley also recorded positive flows.
The last time Bitcoin ETFs saw a comparable daily inflow was on October 6, 2025, when they attracted about $1.2 billion.
Ethereum ETFs also posted strong inflows
U.S. spot Ethereum ETFs also recorded a notable inflow. They attracted $269.98 million in a single day, the highest level since October 7, 2025.
Presto Research analyst Min Jung said there was no single clear catalyst behind the move. According to him, the market was supported by several factors at once: renewed appetite for risk assets, strong demand for spot ETFs, and short covering after Bitcoin broke above key levels.
Jung added that nearly $1 billion in ETF inflows may have added further momentum, as such a large amount points to renewed institutional demand.
Bitcoin climbs to its highest level since January
Bitcoin gained about 4.7% over the past 24 hours and traded near $85,400. Earlier on Monday, the price briefly reached around $87,300, its highest level since January 2026. Ethereum rose about 2.5% to $2,730.
Short liquidations gave the market an additional boost. According to CoinGlass, total crypto liquidations reached $1.06 billion over the past 24 hours, with about $844 million coming from short positions.
Analysts also linked the rally to a more favorable macroeconomic backdrop. Among the factors cited were falling oil prices, lower U.S. Treasury yields, and expectations surrounding a meeting between Donald Trump and Xi Jinping.
Institutional investors are returning to Bitcoin
Nearly $1 billion in inflows in a single day suggests that large investors are once again actively increasing their Bitcoin exposure through regulated exchange-traded funds. Importantly, the money flowed into several of the largest ETFs, including funds from BlackRock, Fidelity, and Ark & 21Shares. That points to a broader return in demand rather than a single large transaction.
Strong ETF inflows also reduce Bitcoin’s dependence on speculation in the futures market alone. When ETFs consistently attract new capital, fund managers have to buy the underlying asset, supporting demand in the spot market. If this trend continues for several days or weeks, it could become a more reliable signal that institutional interest in Bitcoin is recovering.
Just a few days earlier, Bitcoin ETFs had posted only modest weekly inflows.