US Treasury Yields Surge as Inflation and Fed Hike Bets Rise

Thu Sep 24 2026
Ray Pierce (978 articles)
US Treasury Yields Surge as Inflation and Fed Hike Bets Rise

After fresh data showed robust corporate activity and growing inflation fears, the 10-year US Treasury yield spiked on Wednesday to return to its highest level in almost 20 years. The 10-year yield increased by 15 basis points to 5.11%, marking a new peak for this year and the highest level observed since 2007. The key yield plays a crucial role in determining borrowing costs throughout the economy. As the yield increases, it exerts upward pressure on the costs associated with mortgages, auto loans, and business loans. Yields increase as bond prices decrease. Yields have experienced a significant increase this year as market participants evaluate the trajectory of inflation and the Federal Reserve’s benchmark interest rate, along with various other considerations. Bond yields experienced a significant increase on Wednesday morning following the release of new economic data. Business activity in September experienced its most rapid growth since July 2021, as indicated by data. Meanwhile, input costs have escalated due to the increase in energy prices. That increased speculation that the Fed may persist in elevating interest rates to mitigate inflation, while having the capacity to do so due to a robust economy. Odds for a Fed rate hike in October increased to 66%, a rise from 55% just one day prior, as indicated by the CME FedWatch forecasting tool.

The 10-year yield exceeded 5% earlier this month, subsequently retreating in recent days, only to surge on Wednesday, surpassing 5.1%. The yield peaked at 5.14% during trading before concluding at 5.11%. Bond yields surged across the curve, with two-year, 10-year, and 30-year yields all experiencing significant increases. The 30-year yield increased by 11 basis points to reach 5.4%, marking a new peak for the year. It is the highest intraday level for the 30-year yield since 2007, yet it marks the highest closing level since 2004. The two-year Treasury yield, which reflects expectations for central bank policy, increased approximately 16 basis points to reach 4.9%, marking its highest level since 2024. “Overall, it was a much stronger-than-expected read on US business activity that implies ample latitude for both policy rates and Treasury yields to push higher in the near term,” Vail Hartman wrote in a note. The five-year Treasury yield increased beyond 5% for the first time since 2007 following a regularly scheduled auction on Wednesday. Yields were already on the rise Wednesday morning as global oil prices increased. Oil and yields experienced a pullback and fluctuations in recent days before rising on Wednesday.

The front-month contract for Brent crude experienced an increase of 3.86%, concluding at $103.08 per barrel, marking a rebound following a decline over the previous five trading sessions. Traders are closely observing developments in the Middle East, attempting to evaluate the potential duration of disruptions to oil flows. “Today has been a perfect storm fueling the surge in bond yields across the curve,” said Chip Hughey. The increase in oil prices and bond yields adversely affected equities: The S&P 500 declined by 0.75%, while the Nasdaq Composite experienced a drop of 1.1%. Iran President Masoud Pezeshkian on Wednesday stated at the United Nations General Assembly that Iran will not submit to the United States amid ongoing tensions concerning the Strait of Hormuz. Pezeshkian also stated that Tehran would not permit the United States to utilise the key shipping channel “to impose their aggressions upon us.” And “We cannot let some have free access and gain their interest from a waterway while at the same time using that waterway to impose their aggressions upon us, to impose insecurity upon us, to forbid us access to our own waterways,” Pezeshkian said at the summit in New York.

At the beginning of the year, several Wall Street banks projected that the Federal Reserve could potentially lower interest rates this year. However, the energy shock resulting from the conflict with Iran, coupled with indications of a robust economy, has fundamentally altered the trajectory of policy. The Fed this month raised interest rates for the first time since 2023. At the beginning of the year, the 10-year yield was at 4.15%. Currently, the yield stands at 5.11%. “This is the market telling us we’ve entered a genuine re-tightening cycle,” said Tony Miano. The increase in yields constrains financial conditions and elevates the cost of borrowing. That can exacerbate concerns regarding affordability in an economy already characterised by consumers experiencing pessimism. The Treasury Department has initiated an expanded buyback operation that may assist in mitigating an increase in yields. The Treasury on Wednesday announced it would conduct another buyback of up to $6 billion on Thursday, marking the second in a series of increased buybacks that permit up to triple the size of a standard operation.

The Treasury on August 19 announced it would at least double the size of buybacks of long-term bonds from September to November. The standard operation amounts to $2 billion, indicating that the increased buybacks would total at least $4 billion. The first of the increased buybacks occurred on September 10, when the Treasury bought back $5.2 billion in bonds, slightly below the upper limit of $6 billion but still more than double the standard size. The Treasury Department buybacks represent one instrument in Secretary Scott Bessent’s arsenal aimed at mitigating the upward trajectory of yields. However, analysts indicated that the magnitude of the buybacks is insufficient to have a significant impact on the over $30 trillion Treasury market, and will not alter the fundamental dynamics driving higher yields. “Surging energy prices and robust economic activity continue to outweigh the impact of the buyback program,” Hughey at Truist said.

Ray Pierce

Ray Pierce

Ray Pierce is a Senior Market Analyst. He has been covering Asian stock markets for many years.

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