United Microelectronic (UMC) stock

Makes chips , market cap $34B

Makes chips for other companies

Worth $34B

Pre-market

$14.71

+6.21%

Close $13.85 +3.51%

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

Why UMC is down

Down 26% from Aug 10 to Nov 6.

Our sources do not explain the slide.
The S&P 500 fell 4.9% over the same days.

Sources: Price history, Nov 6, 2026

−1Volatility moves 7.5% a day with no profit or positive free cash flow over four quarters on file

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Quality Score

Below Average

In its industry

#43of 84

Semiconductors

Checks firing

1of 14

Trending up

From 52-week high

-52.2%

under its best in a year

UMC's Quality Score was unchanged on Fri, Nov 6, at 3.

See UMC's 14 chart checksSee it live, free for 24 hours. No account. No card. Then keep going with a free account.

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Key facts on UMC

Key facts on UMC
Holding it back	Moves 7.5% a day with no profit behind it
Latest filing	20-F, Apr 24 Filed its annual report (20-F) for the year to Dec 31, 2024

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

UMC in the news

Pre-marketNo company news in our sources; Semiconductors +1.3%, S&P 500 +0.9%.

Chip stocks rose together

Group

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

UMC closed +3.5% that day.

Reported by Yahoo Finance · covered by 13 outlets

Get an alert on UMC's next big story →

The move is what UMC 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.

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

UMC catalysts

Coming up

After its last 4 reports it closed -1.0% on average, higher 1 of 4 times.

15 past catalysts since 2020, with sizes and sources, for Pro members.

How UMC ranks in Semiconductors

UMC is #43 of 84 by Quality Score.

How UMC 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
	TXNTexas Instruments		Open for its score
	UCTTUltra Clean		Open for its score
	VIAVViavi Solutions		Open for its score
	VLNValens Semiconductor		Open for its score
43	UMCUnited Microelectronic	1/14	3

When does UMC report earnings, and what happens after?

Expected to report Wed Jan 27, before the open (in 79 days).

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

+9.3%-1.4%-3.2%

Apr 29Jul 29Oct 28

Reported	When	Gap	Reaction	5 days
Oct 28, 2026Before open	Before open	-1.7%	-3.2%	-15.7%
Jul 29, 2026Before open	Before open	-1.8%	-1.4%	+18.8%
Apr 29, 2026Before open	Before open	+6.6%	+9.3%	+20.1%

UMC closed higher after 1 of its last 4 reports.

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

UMC 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 UMC, and all 14 on every stock.Get in free →

UMC RSI on Nov 6: 22.0, below its 50-day and 200-day averages

Not scored

RSI 22.0, MACD below signal, below both averages. Not scored.13 readings

The deep dive on UMC

What it does and how it makes money2 findingsFor Pro members2 findings on what UMC does and how it makes money, for Pro members
Where it stands1 findingPaid $0.40 a share in dividends over the last year, in 1 payment.Ex-dividend dates and amounts, from the market data vendor
What changed in its filings5 findings"On July 3, 2018, the Fuzhou Intermediate People’s Court granted preliminary injunction against the aforementioned two defendants, holding that the two defendants must immediately cease to manufacture, sell, and import products that infringe our patent rights." (20-F for fiscal 2024)SEC filing · Apr 24, 2025A new heading in its "Risk Factors" this year: "The outbreak of infectious disease may materially and adversely affect our business and operations as well as our financial condition and results of operations." (20-F for fiscal 2024; not in fiscal 2023's)SEC filing · Apr 24, 2025, against the one of Apr 25, 2024
Who holds and trades it2 findingsFor Pro members2 findings on who holds and trades UMC, for Pro members

7 more findings on UMC, each with its source, for Pro members.

UMC's officers and directors

Officers and directors with a Form 4 in the last 12 months.

Chitung LiuCFO & SVP · 3 trades
Che-Jen HuVice President · 1 trade
Jen-Tsung LinVice President · 1 trade

See insider trades by person

Which ETFs hold UMC?

In ETFs: UMC is 0.8% of SOXX and under 0.1% of VXUS, the most of the 24 funds Breakaway covers, by each fund's latest filing, Jun 30 to Jul 31, 2026.

About United Microelectronic

Founded in 1980, United Microelectronics is the world's third-largest dedicated chip foundry, with close to 5% market share in 2025 after TSMC and SMIC. UMC's headquarters are in Hsinchu, Taiwan, and it operates 12 fabs in Taiwan, mainland China, Japan and Singapore, with additional sales offices in Europe, the US, and South Korea. UMC features a diverse customer base that includes Texas Instruments, MediaTek, Intel, Broadcom, Novatek, and Realtek, supplying a wide range of products applied in communications, display, memory, automotive and more. UMC employs 19,095 people as of February 2026.

19,097 employeesumc.com

What United Microelectronic says it competes with

“The worldwide semiconductor foundry industry is highly competitive, particularly during periods of overcapacity and inventory correction.”

From its annual report, SEC filing · Apr 24, 2025

Here is what Pro members see.

The same page for Pro members, on Microsoft
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Every line of the score
Price action, the company, and signals, each with its points, on UMC and every other stock.
CEOs buying their own stock
Every CEO buy, biggest names first. Sort, filter, save the list, and set optional alerts.
Congress trades
A member's trades, newest first, each with its amount. Sort and filter the whole list.
14 chart checks, read for you
The ones firing on the stock, each in plain words, its rule a tap away.
Earnings, week by week
Who reports each day, and how each stock took its last four reports.
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Each date in the company's words, its cash against the date, and an optional alert before it.
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What would turn UMC's score around: 6 things
10 more filings explained, a plain line each
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See UMC's 14 chart checks

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Straight AnswersStraight Answers

As of Nov 9, 2026: UMC's Quality Score is 3 (Below Average), #43 of 84 in Semiconductors.

What does UMC's Quality Score say?

UMC scores 3 today, which Breakaway calls Below Average. It is #43 of 84 in Semiconductors by Quality Score, with 1 of 14 chart checks firing. Down 26% from Aug 10 to Nov 6. 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 UMC's Quality Score?

UMC scores 3 today, which Breakaway calls Below Average (0 to 5). That is #43 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 UMC's 3.

When does UMC report earnings?

Expected to report Wed Jan 27, before the open, a date Breakaway expects from the company's usual timing; the company has not confirmed it. UMC closed higher after 1 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.