U.S. spot Bitcoin ETFs accumulated $2.95 billion in inflows over the past 30 days, according to SoSoValue data, extending their streak of consecutive daily inflows to eight trading days as of Monday.
The recent inflow period began on September 17, following a sharp reversal from September 15, when Bitcoin ETFs experienced their largest single-day outflow in months at $450.4 million. The outflow coincided with the U.S. Senate voting 49-50 against advancing the Clarity Act, which required 60 votes to proceed. Ethereum ETFs lost an additional $142.3 million that same day.
The week of September 15 marked a difficult stretch for Bitcoin ETFs, with net inflows of just $6.2 million—their smallest weekly total in 141 weeks.
Buying pressure returned quickly starting September 21, which brought nearly $1 billion in inflows, the largest single day since October 2025. September 22 followed with $715 million in inflows. Daily flows moderated in subsequent days, declining to $347 million on September 23, $191 million on September 24, and $134 million on September 25, for a weekly total of approximately $2.4 billion.
Monday's inflows totaled $31.07 million, the weakest day of the current streak. BlackRock's IBIT fund added $54.84 million, while Grayscale's GBTC shed $23.19 million and Fidelity's FBTC declined $10.90 million.
The recent rally lifted Bitcoin above $84,000, rising above the average ETF holder's cost basis of $81,722 and returning typical fund investors to profitability for the first time since January.
The eight-day inflow streak remains shorter than a nine-day run that ended on August 28, when Federal Reserve Chair Kevin Warsh's Jackson Hole remarks triggered $201.9 million in outflows.
Other cryptocurrency ETFs also saw significant inflows: Ethereum ETFs added $982.5 million over 30 days and $17.1 million on Monday, while Solana funds recorded $278.2 million and XRP funds brought in $127.05 million over the month.
