The yield on Germany’s benchmark 10-year Bund surged to 3.2903% on Monday, the highest level since May 2011, as rising U.S. interest rate expectations and elevated oil prices drove a broad selloff in eurozone government bonds.
The two-year Bund yield, which is highly sensitive to monetary policy expectations, climbed to 2.9014%, marking its highest point since July 2024. The increase follows remarks from U.S. Federal Reserve policymaker Kevin Warsh, who warned that rates may need to rise further if inflation remains above target. Geopolitical tensions in the Middle East added to the pressure, with Brent crude oil prices rising 0.5% to $89.80 per barrel after reports of a U.S. strike on an Iranian island in the Strait of Hormuz and subsequent threats of retaliation from Tehran.
German Finance Minister Lars Klingbeil faces higher borrowing costs as the rising yields increase the cost of new debt issuance, constraining fiscal flexibility for investments or social spending. The robust macroeconomic backdrop offers limited relief: the ZEW economic research center estimates additional federal revenue of about €3 billion this year due to stronger-than-expected growth, though this will provide minimal budgetary cushioning. The German economy has expanded for three consecutive quarters, while the Ifo Business Climate Index reached its highest level in a year in August. The German Savings Banks Association (DSGV) doubled its 2025 GDP growth forecast to 1.0%, and the IMK labor institute projects growth of at least 1.1%.
French sovereign bonds also came under pressure, with 10-year yields hovering near 18-year highs. The spread between French and German 10-year debt widened to 84.3 basis points, reflecting investor concern ahead of contentious budget negotiations in Paris.
Commerzbank fixed-income strategist Rainer Guntermann noted that German bonds are not immune to tightening financial conditions in the U.S., though the market appears well-positioned for the European Central Bank’s next rate hike in September. Traders are pricing an 80% probability of another ECB rate increase by December.
Economists warn that the surge in global borrowing costs signals growing risks to financial stability. Gabriel Felbermayr, a member of Germany’s Council of Economic Experts, described the rise in yields as a warning sign, emphasizing the heightened danger of a broader sovereign debt crisis amid increasingly expensive debt servicing across major economies.
