UMC
United Microelectronics Corporation · Technology · Semiconductors
Last
$22.87
+$0.69 (+3.12%) 3:59 PM ET
After hours $15.23 −$7.64 (−33.41%) 5:11 AM ET
Prev close $22.18
Open $22.95
Day high $23.00
Day low $22.14
Volume 10,304,212
Avg vol 16,531,248
Mkt cap
$55.66B
Sector
Technology
AI report sections
UMC
United Microelectronics Corporation
UMC is trading at the top of its 52-week range with very strong 6–12 month price performance and price well above short- and medium-term moving averages. Momentum indicators such as RSI, CCI, and multiple volatility-band breakouts point to an overbought and extended near-term condition that could increase the risk of pullbacks. Short interest as a percentage of shares outstanding is low, but a high short volume ratio and elevated intraday volume suggest active positioning and potentially higher short-horizon noise.
AI summarized at 1:12 AM ET, 2026-04-21
AI summary scores
INTRADAY: 68 SWING: 77 LONG: 72
Volume vs average
Intraday (cumulative)
−27% (Below avg)
Vol/Avg: 0.73×
RSI
86.31 (Overbought)
Overbought (>70)
MACD momentum
Intraday
+0.01 (Strong)
MACD: 0.01 Signal: 0.00
Short-Term
+0.47 (Strong)
MACD: 2.52 Signal: 2.04
Long-Term
+0.57 (Strong)
MACD: 3.24 Signal: 2.66
Intraday trend score 61.85

Latest news

UMC 12 articles Positive: 8 Neutral: 2 Negative: 1
Positive Benzinga • Rishabh Mishra
Stock Market Today: S&P 500, Nasdaq, Dow Futures Rise Following Tech Rally—Zscaler, United Microelectronics, Braiin In Focus (UPDATED)

U.S. stock futures rose on Wednesday following a mixed Tuesday session where the Nasdaq advanced led by tech stocks while the Dow ended lower. Key movers include United Microelectronics jumping 11.24% after acquiring manufacturing equipment, Braiin tumbling 13.45% after a 74% surge, Box declining 2.42% despite beating earnings expectations, and Zscaler falling after missing revenue guidance. The 10-year Treasury yield stands at 4.46%, with markets pricing a 99.9% likelihood of unchanged Fed rates in June.

UMC BRAI BOX ZS stock market tech rally futures earnings
Sentiment note

Stock jumped 11.24% following acquisition of manufacturing equipment from Tokyo Electron to expand manufacturing capabilities, signaling growth and investment in production capacity.

Neutral GlobeNewswire Inc. • Not Specified
Forge Nano Announces Opening of Taiwan Office to Accelerate AI-Driven Photonics Manufacturing and Expand Regional Operations

Forge Nano opened a Taiwan engineering and service office to support advanced photonics manufacturing for AI data centers. The company's ALDx technology demonstrates 23% reduction in insertion loss and 240-hour reliability. Forge Nano established partnerships with LeadinWay for field support and Manz Taiwan for manufacturing, along with supply chain localization initiatives across Asia.

TSM UMC Atomic Layer Deposition (ALD) photonics manufacturing AI data centers silicon photonics Taiwan expansion semiconductor equipment
Sentiment note

UMC is mentioned only as context regarding Taiwan's semiconductor ecosystem leadership. No specific business developments, partnerships, or impacts related to UMC are discussed in the article.

Positive GlobeNewswire Inc. • Na
Adeia and UMC Expand Long-Term Collaboration in Hybrid Bonding Technologies

Adeia Inc. announced an expanded and renewed intellectual property licensing agreement with United Microelectronics Corporation (UMC). The partnership provides UMC continued access to Adeia's semiconductor portfolio, including hybrid bonding and 3D integration technologies, to support growing demand for chiplet architectures driven by AI and other applications.

ADEA UMC IP licensing semiconductor hybrid bonding 3D integration advanced packaging chiplet architecture
Sentiment note

UMC deepened its collaboration with Adeia to expand advanced packaging services and unlock value for customers through 3D integration solutions. The partnership enables UMC to better serve evolving customer needs in AI, networking, and automotive applications.

Positive Benzinga • Nabaparna Bhattacharya
Hecla Mining, Moderna, And Micron Are Among the Top 10 Large-Cap Gainers Last Week (Jan. 19-Jan. 23): Are the Others in Your Portfolio?

Ten large-cap stocks were top performers last week, led by precious metals and semiconductor companies. Hecla Mining gained 29.31% amid geopolitical tensions and weakening US dollar, while First Majestic Silver rose 26.57%. Moderna jumped 17.44% following positive cancer vaccine trial data. Micron Technology gained 13.21% after analyst coverage initiation. Other gainers included Venture Global (21.6%), New Gold (24.03%), Coeur Mining (23.13%), Korea Electric Power (15.29%), and United Microelectronics (13.82%).

HL HLPB AG MRNA large-cap gainers precious metals semiconductors geopolitical tensions
Sentiment note

Jumped 13.82% this week, benefiting from semiconductor sector strength

Positive Benzinga • Lekha Gupta
United Microelectronics Backs US Semiconductor Push With Polar Foundry Collaboration

United Microelectronics signed a Memorandum of Understanding with Polar Semiconductor to explore collaboration on 8-inch wafer production in the U.S., aiming to enhance domestic semiconductor manufacturing and supply chain resilience.

UMC semiconductor wafer production domestic manufacturing collaboration technology
Sentiment note

Company is expanding manufacturing capabilities, reporting increased sales, and strategically partnering to strengthen U.S. semiconductor production

Neutral The Motley Fool • Motley Fool Markets Team
Photronics Posts 14% FPD Jump in Q3

Photronics reported Q3 2025 revenue of $210.4 million, exceeding expectations. Flat Panel Display revenue increased 14%, offsetting a 5% decline in Integrated Circuit revenue. The company maintained profitability but faced challenges in semiconductor segment.

PLAB UMC photomasks semiconductor flat panel display earnings revenue
Sentiment note

Mentioned as a client, no specific performance details provided

Positive The Motley Fool • Leo Sun
3 Cheap Tech Stocks to Buy Right Now

Despite a historically expensive market, three tech stocks offer value investment opportunities: Verizon, Qualcomm, and United Microelectronics. Each company presents unique growth potential and attractive dividend yields in different technology sectors.

VZ QCOM UMC tech stocks dividend value investing semiconductors telecommunications
Sentiment note

Steady semiconductor market presence, potential auto market tailwinds, attractive 7.1% dividend yield, cheap valuation at 14x earnings

Positive GlobeNewswire Inc. • Dr. David K. Lam
Multibeam Secures $31 Million in Series B Financing to Accelerate Global Deployment of E-Beam Lithography Production Solutions

Multibeam Corp. raised $31 million in Series B funding led by Onto Innovation and Lam Capital to accelerate development of advanced E-Beam Lithography production solutions for semiconductor technologies, particularly targeting AI and advanced packaging applications.

ONTO LRCX UMC E-Beam Lithography semiconductor AI advanced packaging Series B funding
Sentiment note

Invested through UMC Capital and highlighted Multibeam's flexible lithography tool capabilities

Positive Benzinga • Anusuya Lahiri
GlobalFoundries Explores Merger With Taiwan's UMC To Strengthen US Semiconductor Industry

GlobalFoundries is considering a potential merger with Taiwanese chipmaker United Microelectronics Corp (UMC) to create a U.S.-focused semiconductor giant and challenge Taiwan Semiconductor Manufacturing Co (TSMC) in the U.S. market.

GFS UMC TSM GlobalFoundries TSMC semiconductor industry merger
Sentiment note

UMC is a potential merger partner for GlobalFoundries, which could help strengthen the U.S. semiconductor industry.

Positive Benzinga • Benzinga Neuro, Benzinga Staff Writer
Apple, Nvidia Key Supplier TSMC Leads Taiwanese Chip Giants To Localize Neon Gas Production By 2025

Taiwan's leading chip manufacturers, including TSMC, Winbond, and UMC, are set to begin domestic production of neon gas by 2025 to secure a stable supply of this key chipmaking material, which was previously disrupted by the Ukraine war.

TSM UMC NVDA AAPL chip manufacturing neon gas supply chain Taiwan
Sentiment note

UMC is considering purchasing locally produced neon gas from Linde LienHwa, further supporting the initiative to localize neon gas production.

Negative Benzinga • Pooja Rajkumari
Nvidia, Apple Supplier TSMC And Other US-Listed Taiwan Stocks Trading Lower In Pre-Market After Biden Quits Presidential Race - Benzinga

Taiwan stocks, including TSMC, UMC, and ASE Technology, traded lower in the U.S. pre-market following the announcement of U.S. President Joe Biden's withdrawal from the presidential race. The Taiex index also plummeted, raising concerns about the impact on Taiwan's chip industry and the country's stock market.

TSM UMC ASX Taiwan stocks TSMC ASE Technology Taiex index U.S. presidential race
Sentiment note

The company's stock price dipped 1.28% in the U.S. pre-market, suggesting a negative sentiment.

Unknown Zacks Investment Research • Zacks Equity Research
UMC vs. LSCC: Which Stock Is the Better Value Option?

UMC vs. LSCC: Which Stock Is the Better Value Option?

UMC LSCC
News and sentiment labels describe article tone and are provided for research purposes only. They are not trading recommendations or forecasts.
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