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Global bond selloff pushes borrowing rates higher

Sep 25, 2026, 6:33am EDT
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The US Department of the Treasury Building in Washington, D.C.
Daniel Heuer/Reuters

A global bond selloff sent long-term borrowing rates still higher on Friday as traders bet that inflation will remain elevated.

Yields on Japan’s 10-year bonds rose to their highest level in three decades, while US Treasury yields hovered above 5%, a level not seen since the 2007 financial crisis, helping push American mortgage rates to more than 7%.

JP Morgan’s chief economist predicted the surge in energy prices sparked by the US-Iran war would persist, with supply bottlenecks and rising commodity prices stoking inflation too.

The higher borrowing costs are squeezing public finances: Global debt topped $365 trillion — equivalent to roughly three times GDP — prompting experts to warn governments were caught in a “vicious cycle” of short-term fixes and long-term vulnerability, CNBC reported.

A chart of US Treasury bond yields.
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