STMicroelectronics (STM) stock

Semiconductor products , market cap $36B

Analog chips, microcontrollers, and sensors

Worth $36B

Pre-market

$43.05

+3.19%

Close $41.72 +4.43%

As of 9:22 AM ET pre-market, delayed 15+ min · Live for Pro members

Why STM is down

Down 23% in 3 months while the S&P 500 fell 5%.

Its operating margin went from 12.6% in fiscal 2024 to 1.5% in fiscal 2025; its 5 peers' median fell 0.8 points.

Sources: Price history, Nov 6, 2026; Annual reports, Dec 31, 2025; Peers' annual reports, Nov 6, 2026; 10-K segment note, Feb 26, 2026

−1Long-term trend below a falling 200-day average

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1 more reason, free with an account →3 more reasons why STM is down, from its filings, with the other side, the timeline, and its peers, for Pro members.

Quality Score

Below Average

In its industry

#49of 84

Semiconductors

Checks firing

1of 14

Trending up

From 52-week high

-48.8%

under its best in a year

STM's Quality Score rose 1 point on Mon, Nov 9, to 2.

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Key facts on STM

Key facts on STM
Holding it back	Sales fell by a quarter $16.13B → $11.8B in 3 years
Latest filing	20-F, Feb 26 Filed its annual report (20-F) for the year to Dec 31, 2025

1 more reason behind STM's 2, free with an account →3 more reasons behind STM's 2, for Pro members.

STM in the news

Thu Nov 5STMicroelectronics ST87M01 simplifies IoT deployment with SoftSIM, SGP.32 in-factory provisioning, and Zephyr support ein news and 1 more STM closed −12.4% that day.

Chip stocks rose together

Group

“U.S. chip stocks rebound sharply after Thursday's brutal selloff”

STM closed +4.4% that day.

Reported by Yahoo Finance · covered by 13 outlets

Get an alert on STM's next big story →

The move is what STM did that session, not a claim about why.

What moves chips

Big Tech spending$201.9B+108%in the quarter, Jul to Sepon a year

What Microsoft, Alphabet, Amazon, and Meta together spent on buildings and equipment, data centers included, in their latest quarter, against a year earlier. Capital spending as each reports it, not a count of chips bought.

Each company's quarterly report (10-Q) on SEC EDGAR, Jul to Sep. Change on the same period a year earlier.

TSMC monthly sales and US export rules, for Pro members.

What's next

Tue Nov 10: SEMICON Europa 2026Industry event · date confirmed.

2 more dates ahead: dividend dates, for Pro members.

Tested. Our top-scored stocks returned 2.2x the average stock over the next month. Reconstructed after the fact; recorded live since Sep 9, 2026. How we tested it

STM catalysts

Coming up

After its last 4 reports it closed -2.6% on average, higher 2 of 4 times.

44 past catalysts since 2019, with sizes and sources, for Pro members.

How STM ranks in Semiconductors

STM is #49 of 84 by Quality Score.

How STM ranks in Semiconductors
Rank	Stock	Checks	Quality Score
1	AMDAdvanced Micro Devices	3/14	17
2	MUMicron Technology	2/14	14
3	LSCCLattice Semiconductor	2/14	13
	SLABSilicon Laboratories		Open for its score
	SMTCSemtech		Open for its score
	SWKSSkyworks Solutions		Open for its score
	SYNASynaptics		Open for its score
49	STMSTMicroelectronics	1/14	2

When does STM report earnings, and what happens after?

Reports Thu Jan 28, before the open (in 80 days). Confirmed.

What an earnings report is: every 3 months, a company tells everyone how much it sold and earned. We read the figures, the outlook, and how the stock moved after.

Close after the report, last 3

+10.8%-18.7%+3.0%

Apr 23Jul 23Oct 29

Reported	When	Gap	Reaction	5 days
Oct 29, 2026Before open	Before open	-0.9%	+3.0%	-6.0%
Jul 23, 2026Before open	Before open	-17.3%	-18.7%	-26.5%
Apr 23, 2026Before open	Before open	+7.3%	+10.8%	+17.4%

STM closed higher after 2 of its last 4 reports.

All 4 reports, and STM's Quality Score going into each

STM sales and profit by year

Sales and profit by year

Sales grew in four of the last seven years, to $12B in 2025. It made a profit in each of the eight years.

STM has 1 of 14 chart checks firing

Trend1 of 5 shown

MA FAN 21 EMA W.EMA HH/HL 52W HI

Volume1 of 3 shown

VOL VDU U/D VOL

Tight range1 of 3 shown

ATR SQZ SQUEEZE NR7

Buying1 of 3 shown

OBV+CLOSE HI SPRING

The other 10 checks on STM, and all 14 on every stock.Get in free →

STM RSI on Nov 6: 37.4, below its 50-day and 200-day averages

Not scored

RSI 37.4, MACD below signal, below both averages. Not scored.13 readings

The deep dive on STM

What it does and how it makes money5 findingsIt kept 1 cents of each dollar of sales in fiscal 2025: $175M of operating profit on $11.8B of sales.Annual report, filed Feb 26, 2026
Where it stands2 findingsFor Pro members2 findings on where STM stands: its cash, debt, and share count, for Pro members
What changed in its filings4 findings"On June 7, 2024, the Court accepted the jury's verdict and entered a judgment against the Company in the amount of $ 32 million." (20-F for fiscal 2025)SEC filing · Feb 26, 2026A new heading in its "Risk Factors" this year: "We, and the semiconductor industry, operate at a global scale. Our global asset base and market footprint expose us to negative impacts of tariffs and /or trade barriers that may inhibit our ability to place products across regions." (20-F for fiscal 2025; not in fiscal 2024's)SEC filing · Feb 26, 2026, against the one of Feb 27, 2025Apple made up 18% of its revenue in fiscal 2025, up from 14% in fiscal 2024.SEC filing · Feb 26, 2026
Who holds and trades it2 findingsFor Pro members2 findings on who holds and trades STM, for Pro members
Against its closest peers4 peersFor Pro membersSTM against 4 peers, fact by fact, for Pro members

9 more findings on STM, each with its source, for Pro members.

STM insider trades

STM trades by Congress and the executive branch

One trade disclosed in the last six months. The newest:

BuyAlan Armstrong$1K to $15KSenatetraded Mar 30, disclosed Jul 21(113 days later)

BuyAlan ArmstrongSenate$1K to $15Ktraded Mar 30, disclosed Jul 21(113 days later)

See what Congress is buying across the market

Which ETFs hold STM?

In ETFs: STM is 1.0% of SMH and 0.7% of SOXX, the most of the 24 funds Breakaway covers, by their holdings as filed for Jun 30, 2026.

About STMicroelectronics

A merger between Italian firm SGS Microelettronica and the nonmilitary business of Thomson Semiconducteurs in France formed STMicroelectronics in 1987. STMicroelectronics is a leader in a variety of semiconductor products, including analog chips, discrete power semiconductors, microcontrollers, and sensors. It is an especially prominent chip supplier to the industrial and automotive industries.

49,157 employeesst.com

What STMicroelectronics says it competes with

“Markets for our products are intensely competitive.”

From its annual report, SEC filing · Feb 26, 2026

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14 chart checks, read for you
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What would turn STM's score around: 6 things
9 more filings explained, a plain line each
1 more thing pulling STM's score down

BreakawayJul 21Alan Armstrong bought STM$1K to $15K, disclosed Jul 21

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See STM's 14 chart checks

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Straight AnswersStraight Answers

As of Nov 9, 2026: STM's Quality Score is 2 (Below Average), #49 of 84 in Semiconductors.

What does STM's Quality Score say?

STM scores 2 today, which Breakaway calls Below Average. It is #49 of 84 in Semiconductors by Quality Score, with 1 of 14 chart checks firing. Down 23% in 3 months while the S&P 500 fell 5%. Breakaway does not say whether to buy any stock: the score does not know your situation, and it is not a recommendation to buy or sell anything. Please do your own research.

What is STM's Quality Score?

STM scores 2 today, which Breakaway calls Below Average (0 to 5). That is #49 of 84 in Semiconductors by Quality Score. The score adds up the chart checks, the trend, the company's filed sales, its profits, the news, insider trades, and Congress trades. The section above lists the lines behind STM's 2.

When does STM report earnings?

Reports Thu Jan 28, before the open, a date the company confirmed. STM closed higher after 2 of its last 4 reports. Past behavior, not a forecast.

Are the prices delayed?

Only on the public pages, which run at least 15 minutes behind. Pro members, and anyone on a guest pass, see real-time prices: the scanner refreshes every 15 seconds, and your watchlist every few seconds, pre-market and after hours included.