The cost of borrowing for the US government has climbed to 5% for the first time since 2023, driven by a significant sell-off in global bond markets amid escalating oil prices and heightened inflationary fears. On Monday, yields on the 10-year US Treasury bond, a key financial benchmark, hit the critical 5% threshold. Earlier in the year, yields were around 4%, but they have been on the rise since the US-Israeli conflict with Iran began in late February. The last time yields exceeded 5% was October 2023.
This uptick in bond yields coincides with a surge in Brent crude prices, the global oil benchmark, which surpassed $108 per barrel. The increase in oil prices has been fueled by recent attacks on Saudi Arabian energy infrastructure, along with escalating tensions throughout the Middle East. Drone strikes have compelled Saudi Arabia to close an essential east-west crude pipeline, sparking fears of potential global oil supply disruptions. Complicating matters further are attacks linked to Iran-backed Houthi forces and rising tensions near the Bab al-Mandab Strait.
Gulf states have also delayed talks with Tehran regarding a temporary shipping route through the Strait of Hormuz, a crucial channel for global oil and gas transport. Such developments have amplified inflationary pressures and contributed to uncertainty about global interest rates’ trajectory. As the US Federal Reserve’s next interest-rate decision looms, investors are keenly observing, with a similar announcement expected from the Bank of England later this week.
The rise in US Treasury yields holds considerable significance for global financial markets, as the 10-year Treasury is a widely used benchmark for borrowing costs. Therefore, increased yields could elevate financing costs for governments, businesses, and households worldwide. In Europe, bond yields have similarly risen, with UK long-term government borrowing costs reaching their highest levels in decades. The combination of rising energy prices and renewed geopolitical tensions is raising concerns that central banks might need to maintain stricter monetary policies for an extended period.
Oil prices have exhibited high volatility throughout the year. Brent crude, which was priced around $72 per barrel before the conflict, peaked at roughly $126 in April before declining during summer amid hopes for a lasting ceasefire. Prices have spiked again as hostilities have intensified and negotiation efforts have faltered. With oil prices once more exceeding $100 per barrel, markets are grappling with renewed concerns about inflation, interest rates, and the broader repercussions of protracted disruptions to global energy and trade routes.