Euro Zone Bond Yields Hit Multi-Year Highs Amid Iran War Fears

Longer-dated euro zone bond yields have hit multi-year highs as investors grow increasingly concerned about the global economic outlook. The yields are being driven higher by fading hopes for a swift end to the Iran war, which has led to rising oil prices and fuelled inflation concerns.

The 10-year German bund yield, the benchmark for the euro zone, rose to its highest level since May 2011, reaching 3.255%. This is in line with similar moves seen in other heavily indebted countries such as France, Spain, and Italy.

France's 10-year bond yield rose to its highest since November 2008, pushing the spread between German and French 10-year yields to 86 bps, its widest since October 2025. This has reignited concerns about fiscal stability in these countries, particularly as governments may need to ramp up spending to cushion the economic impact of energy supply disruptions from the Middle East.

Kjersti Haugland, chief economist at DNB Carnegie, noted that 'Markets are clearly demanding more compensation for locking up capital for very long periods.' This is reflected in the sharp rises seen in longer-dated bond yields across various countries, including Germany's 30-year yield which rose to its highest since July 2011.

The European Central Bank (ECB) may also need to consider tightening monetary policy as inflation concerns grow. Futures markets are almost fully pricing in a quarter-point rate hike at next month's policy meeting, and around 44 bps of tightening is priced in by the end of the year.