Eurozone bond yields hit 17-year high as Middle East conflict drives inflation fears

Eurozone borrowing costs climbed to their highest level in 17 years on Tuesday as elevated oil prices and a sharp rise in U.S. Treasury yields intensified concerns over inflation and the outlook for interest rates, Reuters reported.

Germany's 10-year bond yield, the benchmark for the euro zone, rose 2 basis points to 3.547%, just below Monday's peak of 3.554%, its highest level since mid-2009. Bond prices and yields move in opposite directions.

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The rise in yields comes as government borrowing costs have reached multi-year and multi-decade highs across major global markets, reflecting a combination of inflation concerns, heavy debt issuance and expectations that central banks may need to keep monetary policy tighter for longer.

Higher energy prices linked to the U.S.-Israeli conflict with Iran have prompted investors to increase bets on further interest-rate increases. Concerns over elevated government debt, large-scale corporate bond issuance to finance artificial intelligence investment and resilient economic growth have also contributed to the recent rise in yields.

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Oil prices add to inflation pressure

Oil prices have surged as the conflict in the Middle East has disrupted expectations for energy supplies. Saudi Arabia's decision to close its East-West Pipeline, an important export route that allows oil to bypass the Strait of Hormuz, has added to concerns about supply risks.

Brent crude was trading about 2% higher at around $108 a barrel on Tuesday after Yemen's Iran-aligned Houthis launched further attacks and Gulf Arab states postponed planned talks with Iran over the conflict.

Higher energy prices pose a fresh challenge for central banks because they can feed into broader inflation and complicate efforts to ease monetary policy.

U.S. Treasury yields add pressure

The rise in euro zone bond yields has also been reinforced by developments in the U.S. government bond market. The U.S. 10-year Treasury yield moved above 5% on Tuesday, reaching a level last seen in 2007.

Expectations of a possible Federal Reserve rate hike on Wednesday have pushed Treasury yields higher after U.S. inflation remained elevated in August. The ongoing conflict with Iran has added another layer of uncertainty to the inflation outlook.

Higher U.S. yields can put upward pressure on borrowing costs globally as investors reassess the relative attractiveness of government debt and the likely path of interest rates.

ECB outlook remains hawkish

Shorter-dated euro zone bonds, which are particularly sensitive to expectations for European Central Bank interest rates, eased on Tuesday but remained close to their highest levels since the 2023 rate-hiking cycle.

Germany's two-year bond yield fell 2 basis points to 3.257%. It had risen above 3.31% on Monday, marking its highest level in three years.

Reuters reported that the ECB raised interest rates last week as it sought to prevent inflationary pressures from spreading through the economy. Financial markets are now pricing in another rate increase later this year, followed by two or more hikes next year.

French and Italian yields also rise

Bond yields in France and Italy broadly tracked the move in German debt, with the strongest increases concentrated in longer maturities.

Thirty-year bond yields in both markets rose by around 2 to 3 basis points, highlighting growing pressure across the longer end of European government bond curves.

The combination of higher energy costs, rising global yields, heavy government borrowing and expectations for tighter monetary policy has created a difficult environment for bond investors. Further moves in oil prices and U.S. Treasury yields are likely to remain key drivers of euro zone borrowing costs in the near term.

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