With Bond Market Yields at Multi-Decade Highs, ‘This Is Hit the Wall Stuff’

The bond market’s autumn storm is raging. (AFP via Getty Images)

Key Points

• A surge in global crude prices and strong inflation data drag Treasury yields to multi-decade highs and stoke bets on Federal Reserve rate hikes.
• The benchmark 10-year Treasury note yield rose to a fresh 2007 high of 5.1% on Wednesday.
• Bets on a Federal Reserve interest-rate hike in October climb to around 75%, according to the CME Group’s FedWatch tracker.

The bond market awoke from its early autumn slumber this week amid a maelstrom of headlines tied to growth, inflation, and fiscal concerns that dragged Treasury yields to the highest levels in decades and stoked bets on a series of interest-rate hikes from the Federal Reserve.

The broader fixed income slump, which was extending into Thursday’s trading session on Wall Street, was largely powered by the renewed surge in global crude prices. Brent crude futures topped $105 a barrel in early trading as hopes of detente between the U.S. and Iran faded and domestic gas and diesel prices continued to climb, with the latter hitting a fresh record peak of $6.51 a gallon.

Those moves, alongside a stronger-than-expected reading of economic activity for September that showed the strongest inflation pressures in nearly four years, combined to hammer Treasury yields and undercut the late autumn rally in U.S. stocks.

“This is ‘hit the wall stuff’ if we continue anything resembling the current pace,” said John Hardy, Saxo’s global head of macro strategy. “And it really begs the questions as to what and when a government intervention into markets might look like.”

“Intervention risk is rising by the hour, and it makes things very difficult to trade,” he added.

Benchmark 10-year Treasury note yields, perhaps the single most important financial metric in global markets, jumped the most since the Liberation Day slump of 2025 on Wednesday, rising some 15 basis points to a fresh 2007 high of 5.1%.

The paper hit 5.148% early Thursday with Treasury Secretary Scott Bessent’s plan to buy back around $6 billion in longer-dated paper, more than triple the amount indicated in early August, having little effect on markets.

An auction of $70 billion in new 5-year notes, meanwhile, which came amid the worst of the bond market selloff in midday trading on Wednesday, drew the highest yields since 2006 and popped the paper north of the 5% mark.

At the shorter end of the curve, benchmark 2-year Treasury note yields traded at 4.884%, a modest easing from the close Wednesday, even as bets on a Fed rate hike in October climbed to around 75%, according to the CME Group’s FedWatch tracker, underscoring the division between Chairman Kevin Warsh and the Treasury secretary on bond market signaling.

Longer-dated 30-year bonds, meanwhile, were last changing hands at 5.444%. That’s more than 50 basis points north of their close of the second quarter and the highest since 2004.

Collectively, the moves have taken the Merrill Lynch Option Volatility Estimate, the benchmark reading of fixed income moves similar to the VIX index for stocks, to the highest levels since late March.

That has bond markets on edge heading into Thursday, with the rise in yields weighing on stocks over the final trading days of a challenging month.

The S&P 500 was holding on to positive territory for September after Wednesday’s close of tradinfg, but could slip into the red at the start of trading on Thursday with an opening bell decline of around 35 points.

That will leave the benchmark around 2.3% higher for the quarter and up just over 12% for the year.

Still, Glen Smith, chief investment officer at GDS Wealth Management in Flower Mound, Texas, feels there’s more order in the fixed income slump, and that suggests a resilient equity market that is ready to move firmly higher.

“While there is still some more September to get through, stocks are so far bucking the historical trend of negative performance, suggesting the earnings story may be more powerful than previously expected,” he said.

“Stocks were able to navigate and withstand a near 5% yield back in 2023, and the same holds true now,” he added.

Write to Martin Baccardax at martin.baccardax@barrons.com

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