Bitcoin ETFs Draw 999 Million Dollars in Largest Inflow Since October

United States-listed spot bitcoin ETFs pulled in a net 998.95 million dollars on Monday, Sept. 21, their largest single-day haul since Oct. 6, 2025 and the ninth-largest since the funds began trading in January 2024, CoinDesk reported, citing SoSoValue data. The intake beat the previous 2026 best of 844 million dollars set on Jan. 14. Cointelegraph put the same Monday total at 998.9 million dollars, also citing SoSoValue, and called it the biggest daily figure of the year.

BlackRock's iShares Bitcoin Trust (IBIT) led the day with 381.37 million dollars, followed by the ARK 21Shares Bitcoin ETF (ARKB) at 289.12 million and Fidelity's Wise Origin Bitcoin Fund (FBTC) at 238.84 million, according to Farside Investors data cited by CoinDesk. Cointelegraph's tally matched to the million at 381 million, 289 million and about 239 million dollars for the same three funds. The three leaders accounted for about 909 million dollars of the 999 million total between them, leaving roughly 90 million spread across the remaining funds in the category, the reported figures show.

Both reports drew their daily totals from SoSoValue and their fund-level splits from Farside Investors, and the two tallies agreed to the million on every figure they shared. That shared sourcing sits behind the 998.9 million total as well as each of the three fund splits.

The January marker had stood for more than eight months before Monday's session cleared it by about 155 million dollars, the figures show.

The last intake of comparable size came on Oct. 6, 2025, when the funds drew more than 1.2 billion dollars as bitcoin touched a record high near 126,200 dollars, per the same report. That session still stands as the high-water mark for the category. The October record exceeds Monday's haul by at least 200 million dollars, and the record price from that session sits about 48 percent above current levels near 85,000 dollars. Monday's total fell just short of the billion-dollar line but ranked inside the all-time top ten across more than two years of trading since the Jan. 11, 2024 launch.

Bitcoin's price move framed the flow. The asset changed hands near 85,430 dollars at publication time, up 4.7 percent on the day and 12.3 percent on the month, with a brief push above 87,200 dollars on Monday, per CoinGecko figures cited by Cointelegraph. The rally took bitcoin to its highest since January, with the price up 44 percent to 85,000 dollars this quarter, ahead of every other major asset including gold, one markets account added. CryptoQuant analyst Julio Moreno called the move above the 365-day moving average the final signal needed to confirm a new bull market, according to a Monday markets report citing his post.

The bid extended beyond bitcoin products. United States spot ether ETFs added about 270 million dollars on the same day, their biggest daily intake of 2026, while spot XRP ETFs recorded no net flows and sit at about 1.71 billion dollars in cumulative inflows, SoSoValue data showed. The ether figure pointed to renewed interest in the second-largest crypto asset alongside the bitcoin surge.

Timing gave the inflow added weight. The haul extended a three-day run of net gains, the first such streak in two weeks, and arrived days after the Senate's failed cloture vote on the Clarity Act market-structure bill plus a Federal Reserve interest-rate increase. The flow read as an institutional vote of confidence after that double hit of policy and macro news, the report suggested.

The day took September's net tally to 1.31 billion dollars after a 3.52 billion dollar August, a sequence that points to steady institutional demand even as wider fiscal and debt worries persist across advanced economies. Despite the surge, the category remains about 450 million dollars in the red on a year-to-date basis, while a second tally put the 2026 shortfall at about 464 million dollars, its figures showed, leaving buyers with more repair work before 2026 turns positive for ETF flows.