U.S. spot Bitcoin ETFs pulled in $3.52 billion in net inflows in August 2026, up sharply from just $172 million in July 2026, as BTC gained about 25% – its best monthly performance since November 2024.

The inflows came across 16 of 21 trading sessions including a 9-day streak.

ETF assets also jumped 31% to $99.6 billion while monthly trading volume rose nearly 49% to $58.6 billion.

In terms of outflows:

• June had the biggest outflow at $4.51 billion, followed by
• May at $2.43 billion, and
• January at $1.61 billion.

MILESTONE | June Records the Largest Monthly Outflows for Bitcoin ETFs in 2026

The August rally showed strong institutional demand. September will test whether that demand can sustain…