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Last updated : 15/09/2026 - 16h08
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STMicroelectronics stock plunges nearly 6% and breaks its support level

STMicroelectronics is facing the strongest pressure on the Paris index this Monday, in a session marked by a particularly tense macroeconomic context. The stock has breached downward a technical threshold that has been monitored for several weeks, worsening an already pronounced decline over the entire month.


STMicroelectronics stock plunges nearly 6% and breaks its support level

STMicroelectronics lagging the CAC 40 with a broken support and accumulating weekly losses

STMicroelectronics drops 5.81% to €42.08 during trading, the largest decline in the CAC 40, in a Paris market retreating 0.83%. The fall is amplified by a downward breach of the €42.22 support: the stock is trading at €42.11, below this threshold now broken. The correction thus exceeds the scope of a simple index decline and takes on its own technical dimension. Over the rolling week, the stock loses 6.08%, and medium-term pressure remains strong with a decline of 11.72% over the month.

The sector of electronic equipment manufacturers listed in Amsterdam shares this negative momentum: ASML Holding drops 5.42% and ASM International loses 8.58% during trading, in a movement affecting the entire European semiconductor supply chain. This Monday falls within a busy day on the monetary front: the Fed meets on Wednesday, the Bank of Japan on Friday, and money markets assess an 85-90% probability of a new 25 basis point increase in Fed funds, against the backdrop of US inflation remaining at 3.4% in August. The VIX jumps nearly 14% during trading, reflecting a clear increase in risk aversion.

Still elevated valuation against a quarterly decline of 37.89% and moving averages well above

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The quarterly correction reaches 37.89%, a considerable decline that places the stock in a configuration of sustained pressure on its short and medium-term moving averages. The price at €42.08 is below the 20-day MA at €44.17 (gap of 4.73%) and the 50-day MA at €49.14 (gap of 14.37%): two references that form just as many resistances to recovery. Only the 200-day MA at €39.98 remains below the price, offering a long-term floor still intact at approximately 5% below current levels. The RSI at 46 remains in neutral territory, without oversold signals despite the scale of the correction, suggesting that technical pressure has not yet been exhausted.

On the valuation front, according to the consensus of reviewed analysts, the stock trades at approximately 36.1 times the earnings of the current fiscal year and 18.8 times those of the following fiscal year: multiples still elevated given the correction underway for three months. On the product side, the group announced this morning the launch of the VD56GA, an infrared sensor for the automotive cabin, without this communication stopping today's stock decline. The next resistance level to monitor remains at €49.06, approximately 17% above the current price.



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Context

Period
  • Period: T2 2026
Key reported figures
  • Revenue: 3 487 millions de dollars
  • Quarterly revenue: 3 487 millions de dollars
  • Revenue growth: 25,9 %
  • EBITDA margin: 7,7 %
  • Net income: 222 millions de dollars
  • Free cash flow: 75 millions de dollars
Guidance from the release
  • Nous anticipons une accélération de la croissance du chiffre d'affaires au quatrième trimestre, tirée principalement par les programmes engagés auprès de nos clients dans les domaines des data centers IA et de la communication par satellite LEO.
Risks mentioned
  • Le mix produit pourrait affecter la marge brute.
  • Les charges liées aux capacités non utilisées.
  • Des incertitudes sur les tendances industrielles.
Opportunities identified
  • Chiffre d’affaires supérieur à 4 milliards de dollars anticipé pour le quatrième trimestre.
  • Demande solide dans les data centers IA.
  • Amélioration de la visibilité et des signes de contraintes d’offre.
Outlook / guidance
  • Expected revenue: 3 700 millions de dollars
  • Management commentary: Point médian des perspectives pour le troisième trimestre 2026 : chiffre d'affaires net de 3,70 milliards de dollars et marge brute de 37,0 %.

The information presented in this article is provided for informational purposes only and does not constitute an investment recommendation, an incentive to buy or sell a financial asset, or investment advice. Readers are invited to conduct their own research before making any decision.

Investments in the stock market involve risks, including the risk of capital loss. Past performance of an asset or market is no guarantee of future results. Any investment decision should be made taking into account your personal financial situation, objectives and risk tolerance.

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