U.S.-listed spot bitcoin ETFs have posted their largest monthly outflows on record, with the 11 funds shedding a combined $3.79 billion, surpassing the previous high of $3.56 billion set in February.

BlackRock’s IBIT — the world’s largest publicly traded bitcoin ETF — has borne the brunt of the retreat, logging more than $2 billion in redemptions so far this month, according to data from SoSoValue.

The exodus accelerated on Thursday, when the group saw over $900 million withdrawn in a single day, marking the second-biggest daily outflow since spot bitcoin ETFs launched in January 2024.

Ether ETFs have also come under pressure, recording a record $1.79 billion in net outflows.

The persistent withdrawals highlight a growing risk-off stance among investors toward the two largest crypto assets. In contrast, newly launched Solana and XRP ETFs have attracted fresh capital, with net inflows of $300.46 million and $410 million, respectively.