Spot Bitcoin ETFs took in $731 million on September 3, the largest single-day inflow since mid-January 2026. BlackRock's IBIT captured the bulk of the money, and dovish remarks from a Federal Reserve official appear to have played a catalytic role in the buying.
Spot Bitcoin ETFs pulled in $731 million on September 3, the largest daily haul since mid-January 2026. The single day capped a broader buying wave rather than standing as an isolated spike.
BlackRock's IBIT leads the intake
BlackRock's iShares Bitcoin Trust, IBIT, accounted for the lion's share of the day, pulling in approximately $454 million. Fidelity's FBTC and ARK 21Shares' ARKB also contributed meaningful sums, though IBIT remains the gravitational center of the spot Bitcoin ETF category. Bitcoin itself was trading near $80,000 at the time of the surge.
Why now: the Waller effect
The timing points to the Federal Reserve. Dovish comments from Fed Governor Christopher Waller appear to have played a catalytic role in the latest wave of buying. When a senior Fed official signals that policy could loosen, risk assets tend to benefit, because lower rates reduce the opportunity cost of holding non-yielding assets like Bitcoin and tend to weaken the dollar.
A broader inflow wave
Weekly inflows for the period ending September 4 climbed to roughly $987 million, suggesting the September 3 figure was the crescendo of sustained buying. August 2026 was already shaping up as a standout month, with total inflows landing around $3.5 billion, the strongest month since September 2025. High inflow days in January 2026 had recorded totals between $697 million and $760 million. The space also saw a record exit of $3.4 billion in early June 2026.
Since their collective launch in January 2024, cumulative net inflows into US spot Bitcoin ETFs have now surpassed $55 billion, placing the products among the most successful ETF launches in history.
Source: Crypto Briefing
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