$UMC
United Microelectronic Corp.
XNYS•Technology•Unknown
Why is UMC down today? It is at $18.05 (-0.41%), and our scanner flagged it 266 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.
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Key Stats
- Price
- $18.05
- Change today
- -0.41%
- Previous close
- $18.12
- 52-week range
- $6.56 – $28.96
- Market cap
- $46.46B
- Dividend yield
- 2.21% ($0.40)
- Shares outstanding
- 12.59B
- Institutional own.
- 7.87%
- Total held
- 7.9%
- Tradeable float
- 11.60B 92% of shares · after 8% institutions
- Avg daily volume
- 11.4M
- Sector
- Technology
- Industry
- Unknown
- Exchange
- XNYS
- 5m
- 2.3x
- 15m
- 1.3x
- 1h
- 1.0x
- 1D
- 0.1x
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Why is $UMC moving 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 5 unusual-volume and momentum alerts on UMC today, peaking at 25.2x its normal volume.
Latest filing6-KForeign issuer report (6-K)Aug 14, 2026 · 6 days agoAnalyst data via Nasdaq. Not investment advice.
Insiders
0 buys, 2 sells last 3 months (0/2 over 12 months)Show 2 recent transactionsMinimize 2 recent transactions
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
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) | -10K | sold 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.
$UMC Sentiment
NeutralBlend 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.
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UMC stock FAQ
Why is $UMC moving 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 5 unusual-volume and momentum alerts on UMC today, peaking at 25.2x its normal volume.
What is the UMC stock price today?
UMC last traded at $18.05, down 0.41% 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 2.21% ($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 266 times in the last 30 days.
What exchange is UMC on?
UMC (United Microelectronic Corp.) trades on XNYS, with a market cap of about $46.46B 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.