The euro zone grew faster than expected. France shrank

What happened

The economy of the 21 countries that share the euro grew 0.4% in the third quarter of 2026 compared with the previous three months, according to Eurostat's first estimate on 30 October. That was slower than the 0.6% of the second quarter but more than economists had expected. Compared with a year earlier, output was 1.3% higher.

The picture by country was very uneven. Ireland grew 5.5% in a single quarter. Spain and the Netherlands grew 0.6%, Germany 0.2%. France, the second-largest economy, shrank 0.1%, unexpectedly, after a fall in the first quarter too. Eurostat stresses that these figures rest on incomplete data and may be revised.

Why one small country can move the average

GDP measures the value of everything produced in a country. In Ireland that includes the output of large multinational companies, mostly American technology and pharmaceutical firms, which book much of their global production and intellectual property there. When their sales jump or they move assets, Ireland's GDP can swing by several percent in a quarter, even though little changes for people living there.

Ireland is a small share of the euro-area economy, but a 5.5% jump is large enough to lift the euro-area figure noticeably. That is why economists also look at growth excluding Ireland, and at the big four economies, to judge the underlying trend. Here, with Germany at 0.2% and France below zero, it is weaker than the headline.

Why weak growth matters so much for France

A government's debt burden is usually measured as debt divided by the size of the economy. It falls when the economy grows faster than the interest rate on the debt, and rises when interest costs grow faster than the economy. France has a large deficit, and its 10-year borrowing cost averaged about 4.85% in October, against about 3.4% for Germany. A shrinking economy works against it twice: tax revenue grows more slowly, and the ratio's denominator stops growing.

This is why investors watch French growth figures alongside its budget debates. Slower growth makes the same deficit look worse, and can push borrowing costs higher still.

Where it sits in the chain

This is Link 5, the real economy, feeding back into Link 4: weaker growth worsens a government's debt arithmetic, and the bond market prices that in the spread over Germany.

What to watch

• Euro-area inflation for October, due on 4 November.
• France's 2027 budget debate in parliament, and any rating agency reviews.
• Eurostat's revised GDP estimate in mid-November.