The global bond selloff intensified on September 24 as the U.S. 30-year Treasury yield climbed to 5.48%, its highest level since 2004, while the benchmark 10-year yield reached 5.20%. The move reflects growing investor concern that elevated energy prices, resilient economic activity and expanding government spending could keep inflation higher for longer, putting pressure on long-term borrowing costs worldwide.

Long-Dated Treasuries Face Renewed Selling Pressure

The latest move highlights a shift in the bond market from concerns about near-term monetary policy toward broader questions surrounding long-term inflation and government financing. The 10-year Treasury yield has risen 0.70 percentage point since the Federal Reserve’s June policy meeting and 1.25 percentage points since early March. While shorter-dated yields are closely linked to expectations for central-bank policy, the 30-year yield reflects investors’ willingness to finance government borrowing over much longer periods.

Recent U.S. economic data has reinforced the pressure. Strong business activity and persistent inflation risks have increased expectations that the Federal Reserve could maintain a restrictive policy stance for longer. Federal Reserve officials have also pointed to the resilience of the U.S. economy, limiting expectations that weaker growth alone will quickly bring inflation back toward the central bank’s target.

Higher Yields Are Reaching Households and Corporate Borrowers

The consequences are extending beyond government debt markets. U.S. 30-year mortgage rates have risen to around 7%, approximately one percentage point above their level before the war and near their highest point in two years. Higher mortgage financing costs can reduce housing affordability and refinancing activity, while companies face increased costs when issuing or refinancing long-term debt.

The bond market’s repricing also matters for broader asset valuations. Higher long-term risk-free yields can increase the financing costs applied across equities, corporate credit and infrastructure projects. This creates a more demanding environment even while economic growth and corporate profitability remain relatively resilient. The Nasdaq’s record close earlier in the week illustrates that financial markets have so far absorbed the higher-rate environment without a broad risk-off reaction.

Global Bond Markets Move in the Same Direction

The pressure is not confined to the United States. Germany’s 10-year Bund yield recently moved above 3.6%, its highest level in 17 years, while Japan’s 10-year government bond yield reached its highest level since 1996. Germany also expects federal borrowing to reach a record €525.5 billion in 2026, highlighting how rising refinancing requirements and government spending are becoming increasingly important factors for global fixed-income markets.

Energy markets remain another important transmission channel. Higher oil prices associated with the Iran war have reinforced inflation concerns, while stronger economic growth increases the likelihood that demand for financing will remain substantial. Together, these forces have pushed government bond yields across major markets toward multi-year or multi-decade highs. :

What to Watch as Long-Term Yields Rise

The next stage of the bond selloff will depend on whether inflation pressures begin to moderate, whether energy prices remain elevated and how investors respond to continuing government borrowing requirements. The 5% threshold on the U.S. 10-year yield has already been breached this month, leaving markets increasingly focused on how much further long-term yields can rise before tighter financial conditions begin to weigh more materially on households, companies and economic activity.