The global bond market is experiencing renewed turbulence as stronger-than-expected economic data and rising oil prices fuel expectations of further interest rate hikes. The benchmark US 10-year Treasury yield jumped to 5.139% on Thursday, its highest level since July 2007, after climbing 13.89 basis points on Wednesday to 5.106%.
The move extended a recent selloff in government debt, pushing the yield further above the psychologically important 5% threshold. The interest-rate-sensitive two-year Treasury yield also rose, reaching 4.897%, its highest level since 2023, while the 30-year yield climbed to 5.438%, the highest since 2004.
The selloff is not confined to the US. Japanese government bonds were hit hard, with the 10-year JGB yield jumping to 3.062%, its highest since August 1996. European debt also came under pressure, with UK 10-year gilt yields rising about 10 basis points, moving toward their highest level since the 2007 financial crisis.
What triggered the fresh selloff?
The catalyst was a stronger-than-expected set of economic readings. S&P Global's flash US Composite PMI Output Index climbed to 58.4 in September from 56.0 in August, its highest level since July 2021. New orders accelerated sharply, reinforcing the impression that economic activity remains robust despite elevated borrowing costs.
Stronger growth and persistent inflation pressures encouraged traders to price in the possibility of another rate hike. US crude rose 2.3% to $92.60 a barrel on Wednesday, while Brent climbed 4.28% to $103.50, remaining above the $100 threshold. Fed funds futures now imply roughly a 70% probability of an October rate hike, according to the CME Group's FedWatch tool.
Federal Reserve Governor Michael Barr added to those expectations, saying the central bank's latest move was necessary to recalibrate policy and that further adjustments were likely. "In my base case, further policy adjustments are likely to be needed to ensure inflation comes down to target in a timely fashion," Barr said.
Weak Treasury auction highlights investor caution
The sharp rise in yields was accompanied by less-than-usual demand for $70 billion of five-year Treasury notes at a government auction on Wednesday. A weaker auction does not necessarily signal a fundamental change in investor demand, but it illustrates the tension created by the recent increase in yields. Higher yields make government bonds more attractive from an income perspective, yet investors are demanding greater compensation for inflation, fiscal risks, and the possibility that interest rates will remain elevated for longer.
What persistently high yields could mean for stocks
The rise in bond yields is beginning to feed through to equity markets. US Nasdaq futures led losses, falling more than 1% after the index had reached new records earlier in the week. Dow Jones Industrial Average futures were down about 0.4%, while S&P 500 futures fell roughly 0.6%. Asian equities also weakened, and the Stoxx 600 traded about 0.35% lower in early European trading.
The reason is straightforward: when risk-free Treasury yields rise, investors can demand higher returns from equities. That increases the discount rate applied to future corporate earnings and can be particularly damaging for growth and technology companies whose valuations depend on profits expected years into the future. "The stock market wants a resolution to the (Middle East) conflict, and if we don't get that, we will have higher rates for longer, and that's going to continue to weigh on the equity market," said Lauren Cassidy, chief investment officer at Founders 100 ETF in Dallas.
Roger Aliaga-Díaz, Vanguard Global Head of Portfolio Construction and Chief Economist, Americas, similarly warned about the valuation effect of higher long-term yields. "If the 10-year Treasury yield settles meaningfully above 5%, it would translate into a higher discount rate, meaning anticipated future cash flows would be worth less today, which typically lowers equity valuations," he said in a recent commentary.
US debt costs meet a bigger global debt problem
The latest bond-market turbulence is occurring as governments around the world carry historically large debt loads. Global debt increased by more than $10 trillion in the first half of 2026 to surpass $365 trillion, according to the Institute of International Finance. Emerging-market debt accounted for much of the increase, rising by $6.5 trillion to more than $110 trillion. The IIF said advanced economies paid more than $3.3 trillion in interest on internationally traded government bonds last year, more than estimated global spending on artificial intelligence, defense, or clean energy. The scale of the debt burden means higher benchmark yields can have consequences well beyond equity markets.
This article is for informational purposes only and does not constitute financial advice.
