Bitcoin ETFs Post Strongest Month of 2026 as BTC Surges 25% in August

US spot Bitcoin exchange traded funds recorded their best month of 2026, pulling in $3.52 billion in net inflows as Bitcoin posted its largest monthly gain since November 2024. The rally has since lost steam, with flows turning negative in early September.

August Inflows Slash Year-to-Date Losses

Bitcoin ETFs brought in $3.52 billion during August, a sharp jump from just $172 million in July and the strongest monthly total so far this year. Bitcoin itself climbed roughly 25% over the month, marking its best performance since a 37% surge in November 2024.

The strong month cut year-to-date net outflows by about 66%, bringing the total down from $5.29 billion to $1.77 billion. Earlier in the year, June had been the weakest month with $4.51 billion in outflows, followed by May at $2.43 billion and January at $1.61 billion.

Steady Inflows Throughout the Month

The funds saw net inflows on 16 of 21 trading days in August, including a nine day consecutive streak from August 17 through August 27. Total net assets climbed to $99.61 billion by month’s end, up about 31% from $76.29 billion in July, while monthly trading volume rose nearly 49% to $58.63 billion.

September Opens With Outflows

Bitcoin ETFs started September on a weaker note, recording $236.46 million in net outflows on Tuesday, the largest single day withdrawal since July 31. This reversed Monday’s inflow of $216.70 million and came as Bitcoin briefly dipped below $77,000 after trading above $80,000 in late August.

Ether and XRP ETFs Continue Positive Momentum

Ether ETFs added around $11 million on Tuesday, pushing their year-to-date total to $732 million, a turnaround from being $1.12 billion in the red at the end of July. XRP ETFs drew $14.4 million on the same day, bringing their year-to-date inflows to $502 million, up about 46% from July’s total.