Bitcoin spot ETFs see $214M outflow as Ethereum funds shed $36M in single session

US spot Bitcoin ETFs hemorrhaged $214 million on June 10, with Ethereum spot ETFs losing $35.6 million in the same session. The combined $250 million exit marks another rough day for crypto’s most watched institutional products.

It’s part of a 13-day outflow streak that has drained roughly $4.4 billion from US spot Bitcoin ETFs since late May.

BlackRock carries the weight

BlackRock’s iShares Bitcoin Trust, IBIT, was responsible for $213.63 million of the day’s Bitcoin ETF outflows. In practical terms, that single fund accounted for nearly the entire day’s damage.

The $213.63 million figure translates to approximately 3,580 BTC being redeemed from IBIT alone.

Fidelity and Grayscale also contributed to the broader decline, though their numbers were dwarfed by BlackRock’s exit. The pattern has been consistent since mid-May, with these three major issuers reporting persistent or accelerating outflows across their Bitcoin products.

On the Ethereum side, the $35.6 million in net outflows showed a more fragmented picture. Different issuers posted varied results, with some BlackRock Ethereum products actually recording minor inflows even as the broader category bled.

A 13-day streak tells a bigger story

The cumulative $4.4 billion in redemptions from US spot Bitcoin ETFs represents a significant reversal from the enthusiasm that defined much of 2024 and early 2025. Weekly outflow figures climbed past $1.7 billion during this stretch.

The timing lines up with Bitcoin trading in the $60,000 to $65,000 range. When prices decline and ETF holders start hitting the exit, it creates a feedback loop: redemptions force ETF issuers to sell underlying Bitcoin, which adds selling pressure to spot markets, which can trigger more redemptions.

What this means for investors

The ETF flow data has become one of the most closely watched indicators in crypto. It’s essentially a real-time sentiment gauge for institutional money, which now represents a much larger share of Bitcoin’s overall market dynamics than it did before ETFs existed.

The Ethereum ETF outflows, while smaller in absolute terms, add another layer of concern. Ethereum funds have struggled to match Bitcoin ETF demand since their own launch, and losing $35.6 million in a single session doesn’t help the narrative that institutional investors view ETH as a must-own portfolio asset alongside Bitcoin.

Given that IBIT dominated both the inflow and outflow cycles, its daily flow data has become a de facto barometer for how the largest pools of institutional capital are positioning.

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