US 10-year Treasury yield breaches 5% threshold

The US 10-year Treasury yield briefly touched 5% on Monday, a level not seen since 2023, as a global bond sell-off spread from Washington to Europe. According to Euronews, the move came alongside renewed inflation anxiety tied to higher energy prices and an expectation that major central banks will keep policy tight, with the Federal Reserve, Bank of England and Bank of Japan all due to set rates this week.

A 10-year yield with a “5” handle is not just a market milestone; it is a price tag on the cost of running deficits and refinancing debt in a world where energy shocks still travel quickly. Euronews points to several forces pushing yields higher at once: heavier government borrowing, resilient growth, and heavy corporate issuance linked to artificial-intelligence investment. Those ingredients reinforce each other. When governments sell more bonds, they compete with companies doing the same; when companies borrow to fund data centres and AI buildouts, they add to the supply of debt just as central banks are trying to keep demand for credit in check.

The knock-on effects are mechanical. Treasury yields are a benchmark for mortgages and corporate loans; higher yields tighten financial conditions without a single new law being passed. They also reprice the relative appeal of assets: when bonds yield more, richly valued equities have to justify themselves with faster earnings growth, not just future narratives.

Policymakers are not standing still, but their tools can look like signals of strain. The US Treasury has announced an expansion of its bond-buyback programme, and last week offered to purchase up to $6 billion of debt maturing in 10 to 20 years—three times the size of the previous operation, Euronews reports. Buybacks can smooth liquidity in specific maturities, but they do not reduce the amount the state needs to borrow overall.

Europe is being pulled along. France’s 10-year yield rose to 4.50%, Italy’s reached around 4.40%, and Germany’s benchmark Bund yield climbed as high as 3.538%, its highest level in 15 years, according to Euronews. At the same time, Brent crude was trading around $107 a barrel on Tuesday morning, with supply fears sharpened by attacks on Saudi energy infrastructure and shipping risks around the Strait of Hormuz.

On Monday the 10-year yield fell back below 5% after briefly crossing the line. The week’s central-bank decisions will be announced on set days; the cost of debt is being reset in real time.