• The 30-year Treasury yield climbed to 5.58%, within 1 basis point of its highest level since 2002, extending its rise for a sixth straight session.
  • The 10-year yield reached 5.24%, its highest since 2007, as high oil prices, inflation concerns, heavy debt issuance, and fiscal worries fuel a global bond selloff.
  • Treasuries are down 2.6% this year, underscoring the sharp repricing of long-term government debt.

Relentless Rise

The U.S. 30-year Treasury yield pushed to 5.58% on Thursday, flirting with its highest level since 2002, as a broad global bond selloff showed no signs of abating. The 10-year yield touched 5.24%, its highest since 2007, marking a sixth consecutive session of gains for long-dated maturities. The move extends a dramatic repricing of government debt that has left investors nursing losses: Treasuries are down 2.6% year-to-date, according to Bloomberg data.

The latest leg higher follows a renewed wave of selling that began earlier this week, driven by a confluence of factors: soaring energy costs, resilient economic activity, expectations of further Federal Reserve tightening, and mounting concerns over fiscal deficits. "What institutional investors like us are really focused on is regulatory stability," said one portfolio manager at a major asset manager, speaking on condition of anonymity. "But right now, the bond market is demanding compensation for a lot more than that—inflation risk, geopolitical risk, and the sheer volume of supply coming down the pike."

Oil and the Fed

At the heart of the selloff is a surge in oil prices tied to escalating tensions in the Middle East, particularly the conflict involving Iran. Disruptions to energy trade through the Strait of Hormuz and the Red Sea have heightened fears that inflation will remain elevated, forcing the Fed to keep policy restrictive for longer. The Fed raised its benchmark rate by 25 basis points on September 16 to 3.75%–4.00% and signaled at least one more increase this year. Its latest projections put 2026 headline PCE inflation at 3.7% and core PCE at 3.4%, both well above the 2% target.

"The market is waking up to the reality that the Fed won't be able to cut anytime soon," said a rates strategist at a European bank. "Every uptick in oil adds to the inflation story and pushes yields higher."

Fiscal Worries Mount

Compounding the inflation narrative is a growing anxiety over U.S. fiscal policy. Federal debt has surpassed $40 trillion, and net interest outlays reached $1.052 trillion in the first 11 months of fiscal 2026, 12% above the same period a year earlier, according to Reuters. Rising yields increase the cost of rolling over maturing debt and financing new deficits, creating a potential feedback loop that could push yields even higher.

"The term premium is back," said a fixed-income portfolio manager at a large pension fund. "Investors are no longer willing to hold long-dated Treasuries without extra compensation for the risk of fiscal slippage."

Global Spillovers

The selloff is not confined to the U.S. Japan's 10-year yield rose above 3% for the first time since 1996, while UK, German, and French yields have all traded near multi-decade highs. The average 10-year government yield across the G7 reached 4.285% in mid-September, its highest since mid-2008. The synchronized rise reflects a global reassessment of inflation risks and governments' capacity to service debt.

In the U.S., the pain is being felt acutely in the housing market, where mortgage rates have climbed above 7%, worsening affordability and exacerbating the "lock-in" effect that keeps homeowners from selling. Auto loans, credit-card rates, and business borrowing costs are also on the rise, as the 10-year Treasury serves as a benchmark for many consumer and corporate loans.

What's Next

Traders will be watching oil prices and upcoming inflation data for clues on the Fed's next move. A sustained break above 5.60% on the 30-year could trigger further selling, while any easing in energy prices might offer temporary relief. "The path of least resistance is still higher," said a strategist at a Wall Street dealer. "Until we see a meaningful drop in oil or a dovish shift from the Fed, yields are going to stay under pressure."

Correction: An earlier version of this article misstated the date of the Fed's latest rate decision. It was September 16, not September 15.