BlackRock’s iShares Bitcoin Trust saw $285 million exit in a single day on May 13, the largest redemption among U.S. spot Bitcoin ETFs. That was nearly half of the day’s combined outflow and BlackRock’s biggest one-day withdrawal since mid-February.
Withdrawals hit U.S.-listed spot Bitcoin ETFs more broadly, so this reads as a category-wide outflow day, not a one-fund event.
The breadth dashboard shows broad declines across major crypto assets. Bitcoin, Ethereum, Solana, Cardano, Dogecoin, and Polkadot are all down, with sellers dominating recent sessions. The pattern is not isolated—it’s a market-wide phase with few signs of accumulation pressure at the top end.
What ETF flows add here is something price alone cannot: they show where regulated allocators are actually choosing to move money. A price drop tells you bitcoin fell. A large redemption from the biggest U.S. spot bitcoin fund tells you institutions used the ETF wrapper to cut exposure that day. That matters because these vehicles are built for fast portfolio adjustments, so the flow data gives a cleaner read on allocator behavior than the tape by itself.