Bitcoin ETFs Pull $3B in Nine Days as CLARITY Act Faces Sept. 15 Test

Bitcoin’s strongest institutional buying streak of 2026 has ended, but the scale of the preceding inflows suggests demand through U.S. exchange-traded funds remains substantial as Washington prepares for another major crypto-regulation test.

U.S. spot Bitcoin ETFs recorded about $201.8 million in net outflows on Aug. 28, snapping a nine-trading-day inflow streak. The streak had brought approximately $3 billion into the products since Aug. 17, while the full week ending Aug. 28 still finished with roughly $924.5 million in net inflows.

The previous week was even stronger, with Bitcoin funds absorbing approximately $1.92 billion, their biggest weekly total of 2026.

Bitcoin was trading near $78,500 on Aug. 31, below the $80,000 level it briefly reclaimed during the institutional buying surge.

ETF Demand Remains Strong Even After the Streak Broke

The Aug. 28 outflow changes the short-term narrative, but it does not erase the broader shift in institutional demand.

Bitcoin ETFs attracted roughly $2.8 billion over the two weeks ending Aug. 28, with BlackRock’s IBIT frequently accounting for a large share of daily inflows.

Earlier in the run, BlackRock’s ETF captured around 62% of one $338 million daily inflow as Bitcoin traded above $80,000.