Bitcoin rose 42% and ether about 71% in the third quarter, but ETF inflows snapped on the final day and a post-inflation rally faded.
By the scoreboard, the third quarter was a triumph for digital assets. By the final session, the momentum had already cooled.
Bitcoin closed at $83,360, up 42.4% from $58,524 at the end of June. That was its best quarter since the first three months of 2024. Ether did even better, rising about 70.9% for its strongest quarter since early 2021, after three straight quarterly declines.
The handoff
The last day of the quarter delivered two warning signs. U.S. spot bitcoin exchange-traded funds recorded net outflows of $125.6 million on , ending a nine-session run of inflows that had brought in about $3.1 billion. Cumulative net inflows into the funds stand at $57.52 billion, with total net assets of $107.87 billion.
The day's other signal came from the rates market. Bitcoin jumped to about $85,500 after Wednesday's softer inflation data, then gave the gain back as Treasury yields refused to fall. It traded near $83,525 on Thursday morning.
The arithmetic of the streak
The inflow run averaged roughly $344 million a day across its nine sessions. A single day of outflows a little more than a third that size does not reverse the trend, but it marks the first time in nearly two weeks that ETF buyers turned net sellers. Those funds were among the most consistent sources of demand during the rally.
A big quarter, a long way to go
Context tempers the celebration. Even after a 42% quarter, bitcoin remains about 34% below its record of about $126,080, set on , and is still down about 4% for the year. Reclaiming the high from here would require a further gain of roughly 51%.
That is the core of the debate. One camp sees the third quarter as a durable re-rating, driven by steady institutional buying through ETFs and corporate treasuries. The other sees a relief rally after a punishing first half, now running into a hostile rate backdrop with the 10-year Treasury yield at its highest since 2002 and a possible Federal Reserve hike on the calendar for late October.
What to watch
ETF flows over the first sessions of October are the cleanest test. A return to inflows would suggest the outflow was quarter-end positioning. A string of outflows would point to institutional demand thinning just as the macro environment turns less friendly. Friday's payrolls report and the to Fed meeting are the macro markers.