Why is UMC Up Today?

UMC
$25.50
▲ +3.62% (+$0.92)
Last updated: Sep 21, 2026 8:35 PM ET (253 min ago)

About United Microelectronic Corp.

Founded in 1980, United Microelectronics is the world's third-largest dedicated chip foundry, with 5% market share in 2024 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, ...

Sector: Semiconductors & Related Devices
Market Cap: $18.61B
Forward P/E: 17.1
52-Week Range: $6.97 - $28.96
Employees: 19,016

Overall Confidence: 65%

65% Confident

Based on news, social sentiment, options activity, and sector analysis

SECTOR 65% Confidence
🎯 Semiconductors & Related Devices sector moving together
This appears to be a sector-wide move. The Semiconductors & Related Devices sector is up 3.8% on average.

✅ Move Confirmation

LOW VOLUME 0.5x average volume

UNCONFIRMED - Low volume suggests this move may not be sustainable.

📍 Sector Context

Semiconductors & Related Devices sector: +3.8%

This appears to be a sector-wide move. Most Semiconductors & Related Devices stocks are moving in the same direction.

Market Comparison

UMC is significantly outperforming the market (+2.1% vs SPY)
S&P 500
SPY
+1.55%
Nasdaq 100
QQQ
+2.77%
UMC
This Stock
+3.62%
vs S&P 500: +2.07%
vs Nasdaq: +0.85%

📊 What Happens Next?

Probability Analysis

45% chance this move continues in the next 1-3 days

Expected Range

Based on historical patterns and options pricing, UMC is expected to trade between:
$24.99 - $26.27

Key Level to Watch

$26.78 resistance
Watch for continuation above $25.50

🔔 Get UMC Alerts

We'll notify you when UMC's trend changes or a new signal fires.

Last updated: Sep 21, 2026 8:35 PM (253 minutes ago)
Data refreshes every 30 minutes during market hours

Historical Context

UMC has moved more than 3.0% up on 47 occasions in the past year.

55.3%
Continuation Rate
26/47 times continued up
+1.29%
Avg Next Day Change
After similar up moves
Last similar move: Sep 17, 2026 (8.6%) → Next day: +0.6%

Frequently Asked Questions

Why is UMC stock up today?

This appears to be a sector-wide move. The Semiconductors & Related Devices sector is up 3.8% on average.

Is UMC stock a buy or sell right now?

Based on current analysis, UMC shows 65% confidence in today's move. Volume is low which does not confirm the trend. View full buy/sell analysis →

What is the UMC stock price target?

UMC is currently trading at $25.50. Based on today's momentum, the expected short-term range is $24.99 - $26.27. See long-term price prediction →

Will UMC stock continue rising?

Our analysis shows a 45% probability that UMC's move continues in the next 1-3 days. Key level to watch: $26.78 (resistance).

Is UMC stock oversold or overbought?

UMC's RSI (Relative Strength Index) is currently at 72.1. This indicates overbought conditions - the stock may be due for a pullback as buying pressure appears stretched.

What is the momentum for UMC stock?

UMC's 10-day momentum indicator is at 4.66. Strong bullish momentum - the stock is gaining significant upward force. This often precedes continued gains.

Is UMC outperforming or underperforming the market?

UMC (+3.62%) is currently significantly outperforming the market (+2.1% vs SPY). Today, the S&P 500 (SPY) is up 1.55%, and Nasdaq (QQQ) is up 2.77%.

What does MACD indicate for UMC?

UMC's MACD (1.14) is currently above the signal line (0.63), indicating a bullish trend. This technical signal suggests buying pressure is dominant. The trend strength (ADX: 25.4) is strong.

Is UMC in an uptrend or downtrend?

Based on moving average analysis, UMC is in a bullish trend. The price ($25.50) is trading above both the 20-day SMA ($21.37) and 50-day SMA ($20.45). This alignment typically indicates sustained upward momentum.

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