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After weeks of watching money pour out the door, US spot Bitcoin ETFs finally caught a break. On June 12, the 12 tracked funds collectively pulled in $85.9 million in net inflows, roughly equivalent to 1,350 BTC.
BlackRock’s iShares Bitcoin Trust, better known as IBIT, did most of the heavy lifting. The fund attracted $57.7 million on its own, accounting for about two-thirds of the day’s total inflow. If you’re keeping score at home, that’s roughly 907 BTC flowing into a single product in a single day.
A reversal worth watching
Here’s the thing about this $86M inflow: it doesn’t exist in a vacuum. It arrived after a genuinely rough stretch for Bitcoin ETFs, which had hemorrhaged more than $1.67 billion in outflows over the preceding week.
Fidelity’s FBTC and other funds contributed smaller positive flows to the day’s total, but the story remains remarkably concentrated at the top. BlackRock and Fidelity continue to dominate the Bitcoin ETF landscape, with the remaining funds playing supporting roles at best.
BlackRock’s gravitational pull
IBIT’s dominance on June 12 wasn’t a one-off. The fund has consistently led inflows throughout 2026, frequently representing the majority of net flows among all US Bitcoin ETFs.
The data tracking firms monitoring these flows, including Farside Investors, SoSoValue, and CoinGlass, have consistently documented this winner-take-most dynamic across the 12 US spot Bitcoin ETFs. The gap between the top two issuers and everyone else continues to widen.
Ethereum tells a different story
While Bitcoin ETFs enjoyed their day in the sun, Ethereum spot ETFs moved in the opposite direction. The Ethereum products recorded modest net outflows of approximately $4.9 million on the same day.
This split could reflect broader uncertainty about Ethereum’s competitive positioning, or it might simply indicate that when institutions dip their toes back into crypto after a period of outflows, they start with Bitcoin first. Either way, the contrast between $86M flowing into Bitcoin products and $5M flowing out of Ethereum products paints a clear picture of where institutional confidence currently sits.
What this means for investors
The concentration of flows into BlackRock and Fidelity carries implications for the broader ETF market. Smaller issuers are struggling to attract meaningful capital, which raises questions about long-term viability for some of the less popular funds.
The Bitcoin-Ethereum divergence also deserves monitoring. If institutional capital continues to favor Bitcoin ETFs while avoiding or exiting Ethereum products, it could create a widening performance gap between the two largest crypto assets.
Disclosure: This article was edited by Editorial Team. For more information on how we create and review content, see our Editorial Policy.
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