MediumIV Macro Policy & Sovereign Debt24 September 2026, Thursday

German Ifo business climate rises to 89.9 in September, its highest since May 2023; the 10-year Bund yield hits 3.60%, the highest since 2009

The Ifo business climate index rose from 88.8 in August to 89.9 in September, beating the 89.0 consensus. The strong data fed expectations of an ECB hike: the German 10-year yield climbed to 3.60% on 24 September and the French 10-year yield to 4.72%.

Location: MUNICH

According to the Ifo Institute's release of 24 September, the business climate index rose from 88.8 to 89.9 in September; the assessment of current conditions rose from 88.5 to 89.5 and expectations from 89.1 to 90.4. According to a Reuters report carried by Investing.com, the survey consensus had been 89.0; the same report noted that Germany will cut fuel tax by €0.17 per litre from 1 October and that the five leading institutes had raised their 2026 growth forecast from 0.6% to 1.3%. According to investingLive, the index is at its highest level since May 2023, and the expectations index rose for the fifth consecutive month.

According to Trading Economics data of 24 September, following strong PMI and Ifo data the German 10-year yield rose to 3.60%, its highest since mid-2009; France's 10-year yield stood at 4.72%, an 18-year high, and Italy's at 4.50%. On these figures, the France–Germany spread is around 112 basis points and the Italy–Germany spread around 90 basis points; on 22 September the French spread was 102 basis points. According to the same source, money markets are pricing at least one 25-basis-point ECB hike by the end of the year and assigning a probability of around 40% to a second. The German 30-year yield was 3.85%.

Talay assessment

Bottom line

The German economy is gaining confidence despite the energy shock, but this good news is being read as bad news in the bond market: strong data reinforce expectations of an ECB hike and have pushed the Bund yield to its highest since 2009. The real fragility lies in France; the widening of the spread to 112 basis points shows budget risk being priced in. The most likely path is a single ECB hike by the end of the year, with the French spread staying above 100 basis points.

Likely effects

Euro area ratesNegativeWeeks
Strength in the Ifo and PMI firms up expectations that the ECB will hike at least once; extended-maturity yields are being pushed higher alongside the sell-off in the US.
French debt premiumNegative1–6 months
France's 10-year yield rising to 4.72% and its spread over Germany widening to around 112 basis points show budget risk being priced ahead of the 2027 election.
Turkish exports to GermanyPositive1–6 months
German expectations rising for the fifth month running and the growth forecast being raised to 1.3% are supportive for demand from Türkiye's largest export market.

Possibilities, ranked

1
ECB hikes once, spread stays wide55%
The recovery continues and the ECB raises rates by 25 basis points by year-end; the Bund stays in a 3.5–3.8% band and the French spread remains above 100 basis points.
Watch: Euro area September flash inflation and the ECB's October meeting
2
France-driven stress30%
If no compromise emerges in France's budget debate, the spread exceeds 120 basis points and periphery premiums also widen.
Watch: A France–Germany 10-year spread closing above 120 basis points
3
Sentiment fails to feed through to hard data15%
Energy costs and high rates weigh on industrial output, the ECB postpones its hike and yields retreat.
Watch: German August industrial production and the October Ifo index

Probabilities are calibrated judgement based on the sources, not measurement, and are revised as new information arrives. Not investment advice.

Market reaction

Indicators affected

Ifo business climate▲ 89.9 (+1.1)
German 10-year yield▲ 3.60% (+5 bp)
German 30-year yield▲ 3.85%
French 10-year yield▲ 4.72% (+8 bp)

Historical context