Bond market meltdown: Why the US Treasury selloff matters far beyond Wall Street

The latest market report highlights that The bond market meltdown is raising concerns that go well beyond traditional traders at large, even as the latest cues point to some stabilisation. A sharp climb in government bond yields can propel up borrowing costs for households and businesses, affect stock valuations and gain the interest burden on governments – making the selloff relevant even to people who do not directly own bonds.

The moves have been historic and highly volatile. The US 10-year Treasury yield has risen 30 basis points in two days, according to The Kobeissi Letter, a global capital markets commentator. In an X thread, the firm described the past two days as "historic" and stated the bond market was "trading like the Fed should have boosted rates by 50 basis points last week".

At the heart of the move is inflation, according to The Kobeissi Letter. "Brent oil price marks are back above $105/barrel and diesel prices are at record highs," it stated, adding that "US consumers expect inflation to climb to 4.6% over the next year".

The shift has additionally hit borrowing costs. The average US 30-year mortgage rate rose 17 basis points to 7.45%, its highest level since November 2023, according to The Kobeissi Letter. In its X thread, the firm stated the rate was up 150 basis points since late February.

The impact is significant for homebuyers. The Kobeissi Letter stated the average rate of 7.45% "officially pushes the payment on a $500,000 mortgage to $3,479/month", compared with $2,995 seven months ago. That amounts to an additional $5,813 a year in mortgage interest expense.

It's official.

As the bond market "meltdown" accelerates, the average interest rate on a 30Y mortgage in the US is up to 7.45%.

That's up +150 basis points in 6 months and the highest since 2023, when inflation was at 6.4%+.

What is happening? Let us explain.

(a thread) pic.twitter.com/xAWnxSbifp

— The Kobeissi Letter (@KobeissiLetter) September 24, 2026

The Associated Press noted that elevated bond yields affect businesses looking to borrow, including firms building artificial-intelligence data centres. Savers can earn more interest from bonds and high-yield savings accounts, while elevated rates can additionally weigh on stock values. For the US government, elevated yields mean elevated interest payments as it keeps borrow to finance the gap between spending and topline.

Against that backdrop, there were some signs of stabilisation in Asia on Friday. The US 10-year Treasury yield declined one basis point to 5.19%, easing after rising more than 20 basis points in the previous two sessions. The rate-sensitive two-year yield declined two basis points to 4.91%.

Brent crude declined 0.7% to around $105.90 a barrel after gaining more than 7% in the previous two sessions. The retreat came as US and Iranian negotiators explored a phased deal under which Tehran would reopen the Strait of Hormuz and Washington would lift its blockade of Iranian ports. Gold prices advanced.

Asian stocks additionally edged elevated, with MSCI's Asia Pacific equities gauge rising 0.2%. Eight of its 11 subgroups advanced, with upside largely fuelled by Japan, while markets in South Korea, Taiwan and mainland China were closed for a holiday.