STM · STMicroelectronics

The thesis

STMicroelectronics' recovery case is stronger on the numbers than on the share price: the third-quarter report on 29 October 2026 beat the guidance midpoint on revenue and gross margin and guided the fourth quarter higher, yet the shares closed at $44.70 on 10 November 2026, 43.9% below the 52-week high of $79.72. The fourth-quarter report, expected in late January 2027, settles whether the $4.15 billion revenue and 39.0% gross margin guidance hold.

The story is well known: the margin-recovery story is well known, and the shares have fallen since the 29 October 2026 beat, with a sector-wide chip selloff on 5 November 2026 (a Motley Fool-style headline that day noted 28 of the 30 largest chip names were in a bear market). The 14-day relative strength index (RSI, a 0–100 momentum gauge) reads 45.1 and the three-month price change is negative 17.0%.

Bullish and bearish views on STMicroelectronics N.V.

The bull case on STMicroelectronics N.V. (STM), in brief: the quarter beat the guidance midpoint. The bear case: the shares fell after a beat.

Bull case

• The quarter beat the guidance midpoint. Third-quarter net revenues were $3,757 million, up 17.9% year over year and 7.7% from the second quarter, about 1.5% above the $3.70 billion midpoint (company Form 6-K, 29 October 2026). Non-U.S. GAAP earnings per share were $0.37 against $0.31 in the second quarter.
• Gross margin reached the target. Gross margin was 37.3% against the 37.0% midpoint and 34.8% in the second quarter. The company attributed the gain mainly to lower unused-capacity charges and better product mix (29 October 2026 release).
• The fourth-quarter guide steps up. The company guided revenue to $4.15 billion at the midpoint, plus or minus 3.5%, up 10.5% sequentially, with gross margin of about 39.0%, plus or minus 2 percentage points. It put full-year 2026 revenue at about $14.5 billion, up 22.8%.
• Order intake is far ahead of shipments. An earnings-call summary reports book-to-bill (orders divided by shipments) "well above two," with every end market above one and a backlog above $20 billion, about five quarters of revenue at the fourth-quarter midpoint (call, 29 October 2026). Distributor inventory fell below the company's target.
• Data-center revenue estimate rose. The call summary puts 2026 AI data-center revenue at about $1.3 billion, over 85% from RF-related products, and expects it to more than double in 2027. July commentary had put 2026 at about $1 billion.
• Margin has a structural lever. Management targets a 44%–46% intermediate gross margin and expects fab reshaping to add more than 4 percentage points by end-2027 or early 2028.
• Analysts remain constructive. Jefferies maintained Buy on 2 November 2026, and SIG upgraded the shares to Buy on 21 October 2026. After the July results, Goldman Sachs' target was $60.50 (Neutral) and Mizuho's was $80 (Outperform).

Bear case

• The shares fell after a beat. The close was $48.52 on 28 October 2026, before the report, and $44.70 on 10 November 2026. The market has not rewarded the guidance raise, and the 5 November 2026 sector selloff added to the pressure.
• The price sits below every recent reference close. Adjusted closes were $50.18 on 18 September 2026, $57.26 on 2 October 2026 and $46.60 on 15 October 2026. The 52-week high of $79.72 is 43.9% above the latest close.
• Margin gains depend on fab closures. The call summary lists the closure of four legacy fabs and customer qualification timing as a risk. The structural margin benefit lands only in late 2027 or early 2028.
• Not every end market is growing. Personal electronics revenue fell 4% year over year in the third quarter, with no customer pull-in (call summary, 29 October 2026).
• Guidance excludes tariff changes. The company's outlook leaves out any further change in global trade tariffs, and it assumes a rate of $1.14 per euro for the fourth quarter. The company reports in dollars against a largely euro cost base.
• A convertible bond overhangs the share count. The company issued a $1.5 billion convertible in June 2026. Data-center revenue also leans on a few hyperscaler programs, and management said capacity constraints could limit satellite revenue.

Price setup

Adjusted daily closes show $50.18 on 18 September 2026, $57.26 on 2 October 2026, $46.60 on 15 October 2026, $48.52 on 28 October 2026 and $44.70 on 10 November 2026. The shares have made lower highs since early October and trade 43.9% below the 52-week high of $79.72.

The RSI of 45.1 shows neither a washed-out nor an extended reading. Heavy retail attention is not visible in the available news, which is dominated by product launches and weekly repurchase notices. No earnings date falls inside the next 30 days. The price level that matters for the case is $42.00, which sits below the 10 November 2026 close.

Catalysts ahead

• ~16 November 2026 (est.): Weekly share-repurchase status on Form 6-K. Shows whether the company is repurchasing its own shares after the post-results decline.
• ~29 January 2027 (est.): Q4 2026 results and call. Tests the $4.15B revenue and 39.0% gross-margin guidance, book-to-bill and the 2027 data-center path.

What would change the view

A daily close below $42.00, a round level under the 10 November 2026 close of $44.70 and under the recent October reference closes. A fourth-quarter revenue print under $4.15 billion, gross margin under 39.0%, or book-to-bill below 1.0 would also break the case.

The risks this note tracks, each with what would confirm it:

• Fourth-quarter results miss the $4.15B revenue or 39.0% gross-margin midpoints. Confirmed by: reported Q4 revenue under $4.15B or gross margin under 39.0% at the late-January 2027 report.
• Fab closures and customer requalification delay the structural margin gain. Confirmed by: management pushing the more-than-4-point margin benefit beyond early 2028.
• Data-center revenue depends on a few hyperscaler programs, so one capex pause would hit the 2027 trajectory. Confirmed by: a softer 2027 data-center target on the next call, or a major customer guiding capex down.
• Tariff changes, excluded from guidance, or euro strength compress margins. Confirmed by: tariff costs or currency named as a negative in the Q4 gross-margin bridge.
• Sector-wide chip selling continues regardless of company results. Confirmed by: a daily close below $42.00 while peers keep falling.

What it trades with

STMicroelectronics trades with the broader chip group: the 5 November 2026 sector selloff moved it despite company-specific good news. Infineon and onsemi are the closest peers on power, silicon carbide and automotive pricing. Dollar and euro moves feed into gross margin through the cost base. The US-listed shares and the Euronext Paris and Milan listings can close at different levels on the same session.