Bitcoin ETF Inflow Streak Ends With $202 Million Pullback as Senate Vote Looms

A nine-day stretch of relentless institutional buying in U.S. spot Bitcoin exchange-traded funds came to an end on Aug. 28, when investors pulled a net $201.8 million from the products. The reversal snapped the longest inflow streak of 2026, though the broader picture still shows roughly $3 billion entering the funds during the run that began Aug. 17.

The timing is notable: the outflow landed just as Washington heads toward a Sept. 15 procedural vote that will determine whether the Senate begins formal debate on the Digital Asset Market Clarity Act, a bill that would establish clearer rules for how digital assets are classified and regulated.

Institutional Demand Remains the Story

The one-day outflow does little to erase what has been an extraordinary period for Bitcoin fund flows. The week ending Aug. 28 still closed with net inflows of approximately $924.5 million, according to data tracking the U.S. spot products. The prior week was even stronger, with roughly $1.92 billion absorbed by the funds — the largest weekly total so far this year.

BlackRock's IBIT has been the dominant vehicle throughout the streak. At one point, the fund captured about 62% of a $338 million daily inflow while Bitcoin traded above $80,000. On the Thursday before the outflow, IBIT led all funds with $277 million in net new money.