August marked the strongest month of 2026 so far for US spot Bitcoin ETFs. With Bitcoin rallying about 25%, these funds dramatically improved their cash flow—year-to-date net outflows dropped by 66%.

Bitcoin ETFs: 2026’s Standout Month

BTC’s August rally was matched by a sharp slowdown in outflows from US spot Bitcoin funds. The numbers show a real comeback in investor appetite for products tracking the top crypto’s price as summer 2026 wrapped up.

Ether and XRP ETFs: Flows Turn Positive

Ether ETFs flipped to positive territory for the year, pulling in $732 million YTD. XRP ETFs also saw net inflows, totaling $502 million.

Market Snapshot Heading Into Fall

All in, the flow data shows a clear turnaround: Bitcoin ETF outflows dropped sharply, while Ether ETFs finished the year-to-date firmly in the green. August’s results set a high bar for the fall and highlight growing investor interest in the biggest digital assets.