Newsbtc iconNewsbtcSep 28, 2026 ~7 min source read

PrimeXBT: Why Bitcoin's Fed-proof rally stalled when bond yields spiked

Bitcoin rose after a widely anticipated Fed rate hike but ran into selling pressure once US Treasury yields jumped in a multi-day bond selloff. This brief explains what moved price, how ETF flows behaved, and the technical levels that matter next.

PrimeXBT Insights: Bitcoin rallied through a rate hike; Can it rally through a bond selloff?

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A bond selloff pushed 10-year yields above 5.2% and 30-year yields near 5.5%, creating a different, open-ended pressure on non-yielding assets like Bitcoin.

Spot ETF daily inflows continued but shrank as yields rose, suggesting demand persisted but was tested by higher rates.

# What happened In mid-September the narrative looked negative for Bitcoin: the CLARITY Act failed in the Senate on September 15 and the Federal Reserve raised its policy range to 3.75–4.00% the next day. Bitcoin briefly slipped below $75,000 and then climbed above $87,000 a week later. That rebound left traders asking why a later move in the Treasury market stopped the rally.

# Why the Fed hike mattered less than expected

# Why the bond selloff is different Beginning September 23, the 10-year US Treasury yield jumped more than 18 basis points in a single day and continued higher, reaching above 5.2% the following day—the highest since 2007. The 30-year rose toward 5.50%, last seen in 2004. There was no lone trigger: stronger PMI data, a weak five-year auction, and higher oil all contributed. The Treasury even repurchased $4 billion of long bonds on September 24, but yields still climbed.

# What the ETF flows show Daily ETF flows after the rally reveal continued buying that tapered as yields rose: $999 million on Monday, then $715 million, $347 million, $191 million, and $135 million on Friday. Buying did not stop, but it became progressively smaller while yields increased. That pattern points to persistent demand tested by a rising opportunity cost of holding Bitcoin.

# A different lens: fiscal and supply implications Higher yields mean the Treasury faces higher borrowing costs. If the Treasury must continue issuing at elevated rates, deficits could grow and bond supply could rise. Some in crypto treat greater long-term bond supply and higher yields as a bullish structural case for Bitcoin. In the short term, however, the immediate impact shows up through flows and relative yield competition.

# Technical picture to watch

# Bottom line The Fed hike was mostly priced in and coincided with strong ETF inflows. The subsequent Treasury selloff introduced a variable, market-driven headwind that reduced net ETF buying but did not immediately reverse the recovery. For now, Bitcoin is holding the gains, with $80,000 as the pivotal area for the near-term outlook.

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