Why STMicroelectronics Stock Plummeted Today

Source Motley_fool

Key Points

  • STMicroelectronics posted a big earnings beat in Q3, and sales also topped expectations.

  • Despite performance beats in Q3, gross margins came in below the company's long-term target.

  • The company's full-year sales guidance also came in below expectations.

  • 10 stocks we like better than STMicroelectronics ›

STMicroelectronics (NYSE: STM) stock suffered a big sell-off in Thursday's trading. The company's share price closed out the day's session down 13.1%, despite the S&P 500 (SNPINDEX: ^GSPC) climbing 0.6% and the Nasdaq Composite (NASDAQINDEX: ^IXIC) rising 0.9%.

Semiconductor stocks generally saw strong momentum in today's trading, but STMicroelectronics wasn't able to participate in the gains. Despite better-than-expected third-quarter results, the company's stock saw a big valuation pullback.

Where to invest $1,000 right now? Our analyst team just revealed what they believe are the 10 best stocks to buy right now. Continue »

A chart line moving down.

Image source: Getty Images.

STMicroelectronics stock sinks despite Q3 beats

STMicroelectronics posted third-quarter earnings that came in significantly above Wall Street's targets. The company's non-GAAP (generally accepted accounting principles) adjusted earnings per share came in at $0.29, far exceeding the average analyst estimate's call for per-share earnings of $0.22. Revenue of $3.19 billion also topped Wall Street's call for sales of $3.17 billion in the period.

While sales and earnings performance topped expectations, the company's forward guidance prompted a big sell-off for the stock. The company's gross margin of 33.2% in Q3 also came in below expectations, and likely factored into today's sell-offs.

What's next for STMicroelectronics?

STM's midpoint guidance calls for full-year sales to come in at approximately $11.75 billion. For comparison, the average analyst estimate had called for the business to post sales of $11.79 billion for the year.

With full-year sales guidance coming below the anticipated levels and signs of weaker gross margins, investors are feeling less confident in STMicroelectronics. While it's possible that Q4 performance could lift results above their currently guided levels, investors currently are not excited by a weaker sales outlook and last quarter's softer-than-expected gross margins.

Should you invest $1,000 in STMicroelectronics right now?

Before you buy stock in STMicroelectronics, consider this:

The Motley Fool Stock Advisor analyst team just identified what they believe are the 10 best stocks for investors to buy now… and STMicroelectronics wasn’t one of them. The 10 stocks that made the cut could produce monster returns in the coming years.

Consider when Netflix made this list on December 17, 2004... if you invested $1,000 at the time of our recommendation, you’d have $602,049!* Or when Nvidia made this list on April 15, 2005... if you invested $1,000 at the time of our recommendation, you’d have $1,105,092!*

Now, it’s worth noting Stock Advisor’s total average return is 1,028% — a market-crushing outperformance compared to 190% for the S&P 500. Don’t miss out on the latest top 10 list, available when you join Stock Advisor.

See the 10 stocks »

*Stock Advisor returns as of October 20, 2025

Keith Noonan has no position in any of the stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy.

Disclaimer: For information purposes only. Past performance is not indicative of future results.
placeholder
Bitcoin Must Clear This Critical Cost Basis Level For Continued Upside, Analyst SaysIn a recent CryptoQuant Quicktake post, contributor Crazzyblockk highlighted key Bitcoin (BTC) cost basis zones that the leading cryptocurrency must clear – or avoid breaking below – to
Author  NewsBTC
Apr 23, Wed
In a recent CryptoQuant Quicktake post, contributor Crazzyblockk highlighted key Bitcoin (BTC) cost basis zones that the leading cryptocurrency must clear – or avoid breaking below – to
placeholder
Apple Q4 revenue tops estimates; $1.1B tariff impact forecastApple projected its revenue for the current quarter ending in September well above Wall Street forecasts on Thursday.
Author  Mitrade
Aug 01, Fri
Apple projected its revenue for the current quarter ending in September well above Wall Street forecasts on Thursday.
placeholder
OpenAI Introduces Lowest-Cost ChatGPT Subscription in India with UPI Payment OptionOn Tuesday, OpenAI introduced ChatGPT Go, its most affordable AI subscription tier, targeting the price-sensitive Indian market. Nick Turley, OpenAI’s Vice President and Head of ChatGPT, announced the launch via an X post, highlighting that users can pay through India’s Unified Payments Interface (UPI).
Author  Mitrade
Aug 19, Tue
On Tuesday, OpenAI introduced ChatGPT Go, its most affordable AI subscription tier, targeting the price-sensitive Indian market. Nick Turley, OpenAI’s Vice President and Head of ChatGPT, announced the launch via an X post, highlighting that users can pay through India’s Unified Payments Interface (UPI).
placeholder
ANZ Raises Gold Price Forecast to $3,800/Oz, Predicts Rally to Continue Through 2026Gold is expected to continue its upward momentum throughout 2025 and into early 2026, driven by ongoing geopolitical tensions, macroeconomic challenges, and market anticipation of U.S. monetary easing, according to analysts from ANZ in a research note released Wednesday.
Author  Mitrade
Sept 10, Wed
Gold is expected to continue its upward momentum throughout 2025 and into early 2026, driven by ongoing geopolitical tensions, macroeconomic challenges, and market anticipation of U.S. monetary easing, according to analysts from ANZ in a research note released Wednesday.
placeholder
Samsung Electronics Forecasts Stronger-Than-Expected Q3 Profit on AI Demand Samsung forecasts Q3 profit of 12.1 trillion won, boosted by strong AI chip demand.
Author  Mitrade
Oct 14, Tue
Samsung forecasts Q3 profit of 12.1 trillion won, boosted by strong AI chip demand.
goTop
quote