Global Borrowing Costs Hit Multiyear Highs Amid Iran Conflict

Global borrowing costs have climbed to multiyear highs, with the 30-year U.S. Treasury yield reaching 5.3 percent on Tuesday, the highest level since 2007. Similar spikes in yields were recorded in Canada, Japan, and Germany. Investors are reacting to a combination of unsustainable government deficits, stubborn inflation, and heavy corporate investment in artificial intelligence infrastructure.

Geopolitical instability has accelerated the sell-off following the official end of a cease-fire between the United States and Iran on Monday. The resulting tension threatens the stability of the Strait of Hormuz, contributing to higher fuel prices and inflation.

Treasury Secretary Scott Bessent has attempted to mitigate the rise in yields by shifting new government borrowing toward short-dated bills. However, Donald Trump has not taken aggressive steps to reduce government borrowing or resolve the conflict with Iran. On Tuesday, Trump stated that "there were no open conversations taking place with the country’s officials" regarding the Iranian conflict.