Skip to content

Subscriptions are live: We're on the subscription model now, early-access price $24.99/month, with day, week, and longer plans too. New accounts start with 5 free premium days. Prefer to donate? Donations grant premium time and are logged on your profile page.

$UMC

United Microelectronic Corp.

XNYSTechnologyUnknown

$19.11
+4.17%+$0.765
RVOL peak today
25.6x
Halted today
None today
Float
2.31B
Next earnings
Unscheduled
$19.11+4.17%+$0.7650Prev $18.34LIVE Full chart Live alerts
No recent price bars, the chart lights up when UMC starts printing.

Why is UMC up today? It is at $19.11 (+4.17%), and our scanner flagged it 251 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment UMC spikes, and full due diligence on UMC — key stats, earnings, dilution and insider activity. Free.

Free alerts

Get free $UMC alerts the moment volume spikes

Our scanner flagged $UMC 251 times in the last 30 days. Create a free account to track $UMC, build a watchlist, and get instant unusual-volume alerts, with a full day of premium now and 5 more when you verify your email, no card needed.

Real-time RVOL & momentum alerts Personal watchlist & price alerts
Sign up free with email

No card · 5 premium days · join 800+ traders

Key Stats

Price & performance
Price
$19.11
Change today
+4.17%
Previous close
$18.34
52-week range
$6.56 – $28.96
Valuation & dividend
Market cap
$46.11B
Dividend yield
2.19% ($0.40)
Ownership & volume
Shares outstanding
2.51B
Live vendor count
Institutional own.
7.87%
Total held
7.9%
Tradeable float
2.31B
92% of shares · after 8% institutions
Avg daily volume
11.5M
Classification
Sector
Technology
Industry
Unknown
Exchange
XNYS
Relative volumevs this time of day
5m
0.1x
15m
0.1x
1hthin
0.1x
1D
0.2x

Get free UMC + market alerts in your inbox

The top plays and unusual-volume catches our scanner flags, emailed to you. No account needed.

No spam. Unsubscribe anytime. Not investment advice.

Why is $UMC up today?

11 alerts today25.6x RVOL

UMC is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 11 unusual-volume and momentum alerts on UMC today, peaking at 25.6x its normal volume.

Likely catalystForeign issuer report (6-K), from an SEC filing. Read it →
Why is $UMC moving? →▶ Replay the moveAuto-generated from live scanner data. Not investment advice.
Trading profileShortableEasy to borrowNo SSRBorrow via Alpaca · SSR from Reg SHO 201
Wall Street consensusSell3 analysts
Avg target $12.19(-36% downside)
Range $7 - $19
0 buy0 hold3 sell

Analyst data via Nasdaq. Not investment advice.

Insiders

0 buys, 2 sells last 3 months (0/2 over 12 months)
Show 2 recent transactions
InsiderActionShares% of positionOwns afterValueDate
Liu Chitung
Officer
Sold (automatic/other)-1.90M
0.08% of company
sold 36%3.32M$294.3M
at $154.89
Jul 13, 26
Hu Che-Jen
Officer
Sold (automatic/other)-10Ksold 0.3%3.21M$1.7M
at $171.30
Jun 30, 26

Recent Form-4 filings via Nasdaq. Open-market buys are the signal worth watching. Grants and automatic (10b5-1) sells are routine. “% of position” is the share of that insider’s own holding the trade moved. Not investment advice.

Dilution watch

Unavailable

We could not reach SEC EDGAR, so the dilution check did not run for $UMC. This is not a clean result: there may be an offering, a registration or a shelf on file that we were unable to read. Check it yourself on SEC EDGAR before trading it.

$UMC Sentiment

Bullish
Bearish90Bullish
📰 News: 3 bull · 0 bearToday: +4.2%👥 Community: 0 bull · 0 bear

Blend of news sentiment, today’s move, and community votes. Not investment advice.

$UMC Activity

News, unusual-volume alerts, AI-trader trades and community chatter - the whole story, newest first.

Alert· 2h ago +0.2% vs EMA
$UMC near 200 EMA: +0.16% from 200 EMA at 6:01 PM ET
at $19.08
Alert· 2h ago 4.4× RVOL
UMC hit 4.356x RVOL at 6:01 PM ET
at $19.08
Alert· 3h ago +2.2% vs EMA
UMC 200EMA (15m) Trending · 50 bars · L3 · +2.20% above EMA · slope +0.43%
at $19.10
Alert· 3h ago +0.2% vs EMA
$UMC near 200 EMA: +0.17% from 200 EMA at 4:12 PM ET
at $19.08
Alert· 3h ago 6.7× RVOL
UMC hit 6.660x RVOL at 4:12 PM ET
at $19.08
Alert· 7h ago +0.8% vs EMA
UMC 200EMA (5m) Trending · 100 bars · L4 · +0.82% above EMA · slope +0.20%
at $18.98
Alert· 9h ago -0.8% vs EMA
$UMC near 200 EMA: -0.84% from 200 EMA at 10:57 AM ET
at $18.94
Alert· 9h ago 2.0× RVOL
UMC hit 2.000x RVOL at 10:57 AM ET
at $18.94
Alert· 10h ago -1.53%
$UMC moved -1.53% in 1 min (Level 1) at 9:47 AM ET
at $19.05
Alert· 10h ago 2.5× RVOL
UMC hit 2.544x RVOL at 9:47 AM ET
at $19.09
Alert· 11h ago +1.3% vs EMA
$UMC near 200 EMA: +1.28% from 200 EMA at 8:51 AM ET
at $19.35
Alert· 11h ago 4.6× RVOL
UMC hit 4.585x RVOL at 8:51 AM ET
at $19.35
Alert· 11h ago +3.4% vs EMA
UMC 200EMA (5m) Trending · 50 bars · L3 · +3.44% above EMA · slope +0.80%
at $19.33
Alert· 11h ago +0.6% vs EMA
UMC 50EMA (5m) Trending · 50 bars · L3 · +0.62% above EMA · slope +0.96%
at $19.33
Alert· 12h ago +2.2% vs EMA
UMC 200EMA (1m) Trending · 100 bars · L4 · +2.18% above EMA · slope +0.50%
at $19.38
Alert· 12h ago -1.09%
$UMC moved -1.09% in 1 min (Level 1) at 7:46 AM ET
at $19.38
Alert· 12h ago +2.2% vs EMA
$UMC near 200 EMA: +2.24% from 200 EMA at 7:09 AM ET
at $19.26
Alert· 12h ago 14.7× RVOL
UMC hit 14.675x RVOL at 7:09 AM ET
at $19.26
Alert· 13h ago +3.6% vs EMA
UMC 200EMA (1m) Trending · 50 bars · L3 · +3.65% above EMA · slope +0.81%
at $19.40
Alert· 13h ago +1.0% vs EMA
UMC 50EMA (1m) Trending · 50 bars · L3 · +1.03% above EMA · slope +1.26%
at $19.40
Alert· 14h ago +1.89%
$UMC moved +1.89% in 1 min (Level 1) at 5:03 AM ET
at $19.16
Alert· 15h ago 25.6× RVOL
UMC hit 25.615x RVOL at 4:46 AM ET
at $19.16
Alert· 15h ago -1.89%
$UMC moved -1.89% in 1 min (Level 1) at 4:09 AM ET
at $19.04
Alert· 3d ago +0.2% vs EMA
UMC 200EMA (5m) Trending · 96 bars · L3 · +0.23% above EMA · slope +0.07%
at $18.32
Alert· 3d ago +0.6% vs EMA
UMC 200EMA (1m) Trending · 127 bars · L4 · +0.56% above EMA · slope +0.15%
at $18.39
News· SEC EDGAR· 10d ago
UNITED MICROELECTRONICS CORP filed a Foreign issuer report (6-K)
News· SEC EDGAR· 18d ago
UNITED MICROELECTRONICS CORP filed a Foreign issuer report (6-K)
News· SEC EDGAR· 19d ago
UNITED MICROELECTRONICS CORP filed a Foreign issuer report (6-K)
News· SEC EDGAR· 25d ago
UNITED MICROELECTRONICS CORP filed a Foreign issuer report (6-K)
News· GlobeNewswire Inc.· 50d ago Bullish
The Taiwan Freedom Project Will Uphold a Free and Open Indo-Pacific by Winning in the Information Domain
News· GlobeNewswire Inc.· 52d ago Bullish
The Taiwan Freedom Project Will Uphold a Free and Open Indo-Pacific by Winning in the Information Domain
News· Benzinga· 89d ago Bullish
Stock Market Today: S&P 500, Nasdaq, Dow Futures Rise Following Tech Rally—Zscaler, United Microelectronics, Braiin In Focus (UPDATED)
News· GlobeNewswire Inc.· 153d ago Neutral
Forge Nano Announces Opening of Taiwan Office to Accelerate AI-Driven Photonics Manufacturing and Expand Regional Operations

Also moving today

The tickers our scanner is lighting up most over the last 48 hours.

UMC stock FAQ

Why is $UMC up today?

UMC is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 11 unusual-volume and momentum alerts on UMC today, peaking at 25.6x its normal volume.

What is the UMC stock price today?

UMC last traded at $19.11, up 4.17% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).

Does UMC pay a dividend?

Yes. UMC currently has a dividend yield of about 2.19% ($0.40 per share per year). Dividend figures can change; this is not investment advice.

Where can I see live UMC alerts?

The UMC Live Alerts panel on this page streams real-time unusual volume (RVOL), momentum, halt and 200-EMA alerts from our scanner the moment they fire. Our scanner has flagged UMC 251 times in the last 30 days.

What exchange is UMC on?

UMC (United Microelectronic Corp.) trades on XNYS, with a market cap of about $46.11B in the UNKNOWN sector.

Is UMC good for day trading?

That depends on your strategy and risk. Day traders look for volume, volatility and a clear trend. Use the live chart, RVOL alerts and 200-EMA context on this page to judge UMC for yourself. This is not investment advice.

Live data from TheDesperateTrader scanner. Not investment advice.