Data: The net outflow of Bitcoin ETFs in the United States over the past 30 days is $6.4 billion, setting a record for the largest single-month outflow in history

According to data from The Kobeissi Letter, the net outflow of the U.S. Bitcoin spot ETF over the past 30 days has reached $6.4 billion, marking the largest single-month outflow in history. Last week alone saw a net outflow of $233 million.

Overall, cryptocurrency funds also recorded a net outflow of $116 million last week, marking the fifth consecutive week of capital outflow. This has reduced the cumulative net inflow of crypto funds over the past 12 months to $5 billion, the lowest level since August 2025, and a significant decline from the peak of $10 billion in October 2025.

In terms of the proportion of assets under management (AUM), the cumulative inflow over the past 12 months has dropped to about 7%, the lowest since July 2025, indicating that negative market sentiment continues to dominate capital flows.