Markets

Stock markets in the red in September amid high oil prices and a bond market slump. Milan down 2.4 per cent

In the third quarter, the FTSE MIB fell by 0.6 per cent, whilst the oil and gas sector rose by 11.5 per cent. Wall Street performed well in the final trading session of the month, buoyed by better-than-expected GDP and inflation figures. The spread stood at 102 points

La Borsa, gli indici del 30 settembre 2026

5' min read

Translated by AI
Versione italiana

5' min read

Translated by AI
Versione italiana

(Il Sole 24 Ore Radiocor) – A turbulent return from the summer break for investors on global financial markets, in a September marked by high crude oil prices and soaring bond yields, amidst fears over the sustainability of public finances and renewed inflationary pressures, whilst hopes for a truce in the Middle East have been dashed time and again. Oil experienced a strongly bullish and volatile month, with Brent rising by 14.4 per cent in September (+42.4 per cent for the quarter) and WTI by 12.8 per cent (39 per cent for the quarter) in the wake of supply concerns linked to the closure of the Strait of Hormuz. A sell-off in the bond markets pushed yields to levels not seen for years: the 10-year Treasury yield rose to just under 5.3%, its highest level since 2007, marking the largest monthly rise in the last two years (over +51 basis points).

In Europe, too, the month ended with pressure on government bonds. The spread between BTp and Bund bonds rose above 100 basis points, to its highest level since May 2025, on the final trading day of September, having widened by 22 points over the month. The yield on the Italian 10-year BTp rose to 4.6 per cent, close to the highs reached in October 2023, whilst the German Bund yield closed the month at 3.58 per cent. Meanwhile, the French 10-year OAT rose to 4.84 per cent – its highest level in 18 years – with a spread over the German Bund of 128 basis points.

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Against this backdrop, European stock markets closed with a monthly fall of 2.2 per cent for the Euro Stoxx 600 (-1.7 per cent for the quarter), with a 2.4 per cent decline for the FTSE MIB , which, however, limited its losses for the quarter (-0.6%). Paris was the worst performer (-4.4% in September and -5.2% for the quarter), whilst the DAX posted a monthly loss (-4%) but ended the quarter in positive territory (+0.9%). Madrid followed the trend set by the Milan Stock Exchange (-2.7% for the month and -0.2% for the quarter). The sell-off hit automotive stocks particularly hard (-8.4% in September and -1.3%), with Stellantis on the Milan Stock Exchange plunging by 18% over the month (-21% for the quarter). A quarter to remember for the oil & gas sector (+11.5%), with gains of 2 per cent over the last month, during which Eni rose by 3.1 per cent (+16.3 per cent over the three months). Tech stocks were also under the spotlight (+2% over the month and -1.4%), with ST up 8.9% in September (-27.2% for the quarter), amid fears over the sector’s substantial investments alternating with fresh waves of optimism.

Slowing US inflation not enough for EU stock markets; Milan down 0.8%

A subdued Wednesday for European stock markets, which gradually lost ground after a positive start. A better-than-expected US GDP figure and lower-than-expected inflation in the United States did little to help: oil prices, which have risen again, continue to weigh on the markets, fuelling inflationary risks. Attention also remains on the bond market, which is set to close its worst month in recent years, whilst uncertainties over the war in Iran persist. Milan thus closed down 0.84 per cent at 51,371 points, falling in line with other European markets. Meanwhile, in the US, attention is focused on the latest macroeconomic data, which experts say reduces – albeit only slightly – the likelihood of a Fed rate rise in October. As mentioned, the price of oil resumed its rise this morning, whilst inflation figures in Europe reflect the energy shock and show a +3 per cent rise for France in September, +4.2 per cent for Italy, +4.9 per cent for Spain, +3.3 per cent for Germany and +4.7 per cent for Belgium.

Il circolo vizioso che pesa su borse e titoli di stato

Wall Street rises following inflation and GDP figures

By contrast, the indices on Wall Street are rising sharply, also here on the final trading day of September and the third quarter, following the release of new US economic data showing a slowdown in inflation last month. The CME FedWatch now shows that traders see a 37 per cent chance of a quarter-point rise in interest rates in October; on Monday, that figure stood at 71 per cent. In the equity market, tech stocks are performing in a mixed bag, ranging from Nvidia Corp to Intel.

The pressure on Treasuries shows no sign of easing. Yields on 10-year bonds have surged to 5.303 per cent, their highest level since 2002.

US GDP exceeds forecasts, inflation below expectations

US GDP for the second quarter (final reading) came in at +2.2 per cent, against estimates of +1.5 per cent, whilst the much-anticipated PCE figure rose by 0.3 per cent in August compared with the previous month, in line with expectations. Compared with a year earlier, it grew by 3.4 per cent, against expectations for a confirmation of the previous month’s 3.7 per cent. The ‘core’ component of the figure, adjusted for volatile items, rose by 0.2 per cent month-on-month, compared with expectations of 0.3 per cent, and by 3 per cent year-on-year, compared with expectations of a repeat of the previous month’s 3.3 per cent.

Technoprobe continues to perform well; asset management is doing well

On the Milan stock exchange, the top performers included Campari (+2 per cent) alongside Mediolanum (+1.7 per cent) and Finecobank (+0.6 per cent), with JP Morgan resuming coverage of the shares with an ‘overweight’ rating. Profit-taking on Avio (-1.2%), which had been rated positively by Equita the previous day; a rally that had resumed this morning following the announcement that work was starting on the first US plant for solid-propellant engines. Conversely, Technoprobe’s run shows no sign of stopping (+2.2%, and up around 300% since last October) following the previous day’s rally. Bringing up the rear were financials, including Generali (-1.7%) and Banco BPM (-2%), as well as TIM (-2.6%). Outside the main index, following an initial trading halt, Juventus FC (-8.8 per cent) slipped after announcing a 250 million capital increase. On the other hand, BFF Bank (+2.6%) performed well, having sold receivables from public authorities in Italia and Spain for around 127 million.

Oil prices rise again, with Brent nearing $104

On the commodities front, oil prices are rising again after hopes of a successful outcome to Qatar’s mediation between the US and Iran faded overnight: Brent futures have risen to nearly $104, whilst WTI futures have climbed to $91. European TTF gas prices are also up, at 72 euros per MWh. Spot gold is down slightly at around $4,150 an ounce. In the currency markets, as expectations of a Fed rate rise as early as October fade, the euro/dollar stands at 1.1356 (from 1.1343), the dollar/yen is down to 157.2, whilst the euro/yen has fallen to 178.5.

Spread remains above 100 points

The yield spread between the benchmark 10-year BTp and the German bond of the same maturity ended the session at 102 basis points, up from the previous reference level of 100 basis points, at its highest since May 2025. The yield on the benchmark 10-year BTp fell slightly, closing at 4.60 per cent, down from 4.62 per cent at the previous day’s close, close to the highs reached in October 2023. The yield on the German Bund closed the session down at 3.58%, whilst the French 10-year OAT was again under pressure, rising to 4.84% (4.81% yesterday), still at an 18-year high and with a spread over the German Bund at 126 basis points.

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