Spot Bitcoin ETFs Experience Record Outflow of $2.43 Billion in May

Spot Bitcoin ETFs saw a significant shift in investor sentiment in May, with a net outflow of $2.43 billion marking the largest monthly outflow of 2026. According to data from SoSoValue, this reversal came after an initial surge in inflows at the beginning of the month.

The total assets under management (AUM) for these ETFs declined to $94.17 billion as of May 29, with cumulative net inflows since their launch in January 2024 standing at $55.66 billion. This represents a notable departure from the positive momentum seen in prior months.

Several factors contributed to this shift, including Bitcoin's price volatility and shifting macroeconomic conditions. The cryptocurrency struggled to maintain upward momentum amid global risk-off sentiment, with some large holders appearing to take profits following earlier rallies.