BlockBeats News, January 2nd. According to Coindesk, the U.S. Bitcoin spot ETF experienced its worst-ever outflow period in November to December 2025, with a total net outflow of $4.57 billion. The outflows reached $3.48 billion in November and $1.09 billion in December.
The outflows indicate a significant decline in institutional interest in Bitcoin, coinciding with a 20% price drop during the same period. The Ethereum ETF saw outflows of over $2 billion from November to December.
