European Central Bank raises interest rates amid Iran war inflation

On September 10, 2026, the European Central Bank raised its key interest rate by a quarter-point to 2.5 percent, marking its second hike since the outbreak of the US-Iran war in February. The conflict has severely disrupted energy markets, pushing Brent crude to $105 a barrel and closing the Strait of Hormuz. Despite these energy shocks, the euro zone economy remains resilient, prompting the ECB to raise both growth and inflation forecasts, while global bond yields surge to multi-decade highs.

ECB interest rate hike

• ▪European Central Bank President Christine Lagarde stated on September 10, 2026, that the central bank has not debated any future path for interest rates and does not pre-commit to future moves
• ▪The European Central Bank raised its key policy interest rate by 25 basis points to 2.5 percent on September 10, 2026
• ▪The interest rate hike on September 10, 2026, was the European Central Bank's second rate increase since the outbreak of the war in Iran in February 2026
• ▪Following the European Central Bank's rate decision on September 10, 2026, financial traders increased bets to price in 60 basis points of further rate hikes by April 2027

Iran war energy prices

• ▪The war in Iran led to the effective closure of the Strait of Hormuz, preventing Gulf oil and gas supplies from reaching global markets
• ▪The conflict in the Middle East, which began with United States and Israeli attacks on Iran in February 2026, intensified in late August 2026 with strikes on military, shipping, and energy assets
• ▪Wholesale natural gas prices in the United Kingdom rose above 200 pence per therm on September 10, 2026, for the first time since late 2022
• ▪Global oil prices surged back above $100 a barrel in September 2026, with Brent crude reaching $105 a barrel

Inflation forecast revisions

• ▪Euro zone core inflation, which excludes volatile energy and food prices, eased to 2.4 percent in August 2026
• ▪On September 10, 2026, the European Central Bank raised its inflation projections, forecasting euro zone inflation at 3 percent in 2026, 2.5 percent in 2027, and 2.1 percent in 2028
• ▪The European Central Bank acknowledged on September 10, 2026, that euro zone inflation is expected to remain above its 2 percent target until 2028

Economic growth resilience

• ▪The European Central Bank upgraded its economic growth forecasts on September 10, 2026, projecting euro zone GDP growth of 0.9 percent in 2026, 1.4 percent in 2027, and 1.5 percent in 2028
• ▪Euro zone bank lending increased in July 2026, indicating that the European Central Bank's June 2026 rate hike had not severely dampened economic activity
• ▪Economists noted that unlike the 2022 energy shock, the 2026 energy price surge is less likely to trigger a wage-price spiral due to less conducive demand conditions

Bond market volatility

• ▪Long-term government bond yields in the United States, the United Kingdom, and Germany surged to multi-decade highs in September 2026 due to inflation concerns and rising government debt
• ▪In the United Kingdom, yields on 10-year government bonds reached their highest level since 2007 on September 10, 2026, while 20- and 30-year bond yields hit levels not seen since 1998
• ▪Upward pressure on euro zone bond yields was exacerbated by competition from bond sales by technology companies raising capital for artificial intelligence development

Debatable claims

• ▪The European Central Bank should commit to a future interest rate path
• ▪The European Central Bank should continue raising interest rates to curb inflation