Bloomberg Gauge Shows Global Long-Term Bond Yields at Highest Since 2008

Oil-driven inflation fears and fiscal pressure continue to drive investors to demand higher returns on longer-dated government debt.

Traders work on the floor of the New York Stock Exchange on May 11, 2026. Angela Weiss/AFP via Getty Images

A Bloomberg gauge of long-term sovereign debt yields has climbed to its highest level since the global financial crisis.

“The surge in global inflation expectations driven by rising oil prices has seen Bloomberg’s gauge of the average yield-to-maturity on sovereign debt due a decade or longer climb to the highest since July 2008,” the publication reported on May 20.