US spot Bitcoin ETFs recorded $390 million in net outflows over the week of August 10 to 14, marking a sharp reversal after a run of inflows earlier in the month. Fidelity's FBTC led the exodus, shedding $153 million on its own — more than a third of the week's total outflow from a single fund. Spot Ethereum ETFs, by contrast, held up far better, losing just $2.26 million over the same stretch.
The divergence is notable given how closely Bitcoin and Ethereum ETF flows have tended to move together since both product categories launched. A week where Bitcoin funds lose nearly 175 times as much as Ethereum funds suggests investors are drawing a sharper distinction between the two assets than they had in prior months, rather than treating crypto ETF exposure as a single trade.
Part of a Broader Cooling Trend
The week's outflows extend a pattern that had already been building. Daily flow data shows Bitcoin ETFs snapped a five-session inflow streak worth roughly $853.5 million in early August before turning negative, with net outflows on August 10 alone reaching about $144.6 million. By August 14, US spot Bitcoin ETFs had logged three straight trading days of outflows, with that single day accounting for roughly $57.6 million of the total.
Related: Bloomberg's McGlone Calls Bitcoin's Rally a 'Faustian Bargain'
What's Behind the Fidelity-Led Selling
FBTC's outsized share of the outflows lines up with a broader slowdown in institutional demand rather than a fund-specific issue — BlackRock's IBIT has also posted negative days through the same window, even as it remains the largest Bitcoin ETF by assets. The pullback comes as Bitcoin has struggled to reclaim levels near its prior highs, a dynamic Bloomberg strategist Mike McGlone has pointed to as evidence that ETF-driven demand, one of the main tailwinds behind Bitcoin's multiyear rally, has started to fade.
Retail Behavior Diverges From the Outflow Data
The institutional retreat sits somewhat at odds with retail-side crypto ETF adoption trends, where younger investors have shown a persistent preference for buy-and-hold ETF exposure over active trading. Whether that retail demand can offset further institutional selling in the weeks ahead may determine whether this outflow streak proves temporary or marks a more lasting shift in how capital is flowing into Bitcoin relative to Ethereum.
