US spot bitcoin ETFs recorded net inflows of $31.1 million on Monday, with BlackRock’s iShares Bitcoin Trust accounting for the lion’s share at $55 million. For the week ending September 25, 2026, cumulative flows reached $2.4 billion, with approximately $1.2 billion going to IBIT, bringing its assets under management to nearly $67 billion. Year-to-date flows experienced a dramatic reversal, swinging from roughly negative $5.8 billion in mid-July to positive at approximately $934 million by late September, a shift of nearly $6.7 billion. Spot ether ETFs also attracted $17.1 million on Monday and roughly $690 million for the week, recovering after $140 million in outflows the previous week.
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