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ASX vs UMC
Which Stock Would AI Choose? ASE Technology Holding Co., Ltd. (ASX) vs. United Microelectronics Corporation (UMC) Stock Comparison
Key Takeaways
- Both ASX and UMC are Taiwan-based semiconductor companies benefiting from AI-driven demand, with ASX focused on advanced packaging and testing services while UMC operates as a pure-play foundry.
- Recent market activity shows both stocks experiencing volatility amid broader semiconductor sector consolidation, with price declines in late July 2026 following strong year-to-date gains.
- ASX has demonstrated robust revenue growth in its advanced packaging (ATM) segment, supported by AI infrastructure expansion, contributing to significant multi-year outperformance relative to benchmarks.
- UMC reported double-digit sales increases in recent months, including June 2026 growth of over 22%, alongside capacity expansions and specialty technology developments.
- Sector exposure for both centers on electronics and computing, with shared influences from supply chain dynamics, AI adoption, and macroeconomic factors affecting investor sentiment.
- Relative positioning highlights trade-offs between ASX's integrated services model and UMC's foundry specialization, influencing their responses to market catalysts.
Introduction
Investors and traders often compare semiconductor stocks like ASX and UMC to assess relative value in a sector shaped by technological shifts and cyclical demand. ASE Technology Holding Co., Ltd. provides outsourced semiconductor assembly, testing, and electronic manufacturing services, while United Microelectronics Corporation specializes in wafer fabrication as a foundry. This comparison appeals to those evaluating growth opportunities in AI-related infrastructure, supply chain resilience, and Taiwan-based tech exposure. Market participants may use such analysis to understand performance divergences, risk profiles, and positioning amid evolving industry trends without relying on short-term fluctuations.
ASX Overview and Recent Performance
ASE Technology Holding Co., Ltd. operates as a leading provider of semiconductor packaging, testing, and electronic manufacturing services (EMS), serving applications in computing, communications, automotive, and industrial sectors. In recent weeks, the stock has shown resilience amid AI-driven demand for advanced packaging solutions, though it experienced a notable decline of approximately 6.6% on July 24, 2026, aligning with broader chip sector pressures. Strong preliminary revenues and sequential expansion in the ATM business have supported positive sentiment, with analysts noting capacity expansions targeted at AI infrastructure. Year-to-date returns have significantly outpaced the Taiwan market benchmark, reflecting sustained momentum from heterogeneous integration and VIPack technologies over recent market activity.
UMC Overview and Recent Performance
United Microelectronics Corporation functions as a global semiconductor foundry, delivering logic, specialty, and advanced process technologies for applications including IoT, automotive, and communications. Recent market activity indicates the stock has faced similar sector-wide volatility, with a decline of about 6.7% on July 24, 2026, following earlier gains. June 2026 sales rose 22.85% year-over-year to NT$23.1 billion, contributing to first-half growth, while initiatives in silicon photonics and capacity investments have bolstered operational updates. The share price has risen substantially over the past year, driven by specialty semiconductor demand and partnerships, though it remains subject to cyclical industry dynamics and upcoming quarterly reporting in late July 2026.
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Head-to-Head Comparison
In business models, ASX emphasizes end-to-end packaging and testing with EMS integration, offering turnkey solutions that capture value across the semiconductor supply chain, whereas UMC focuses on wafer fabrication as a specialized foundry, competing directly in process technology leadership. Growth drivers differ with ASX tied closely to AI packaging demand and UMC benefiting from specialty node expansions and partnerships. Recent momentum reflects parallel exposure to semiconductor cycles, with both showing strong multi-year gains offset by recent corrections amid sector consolidation. Risk factors include shared sensitivities to global chip demand fluctuations and geopolitical considerations for Taiwan operations, though ASX may exhibit more diversified revenue streams. Market sentiment remains influenced by AI adoption rates and earnings visibility for both, highlighting trade-offs in stability versus specialized growth potential.
Tickeron AI Verdict
Based on observable factors such as trend consistency in advanced packaging demand and relative positioning within AI infrastructure themes, Tickeron’s AI models would currently assign a modestly higher probabilistic preference to ASX over UMC. This assessment draws from stronger documented revenue momentum in key segments and sustained outperformance metrics in recent periods, while acknowledging UMC’s solid sales trajectory and foundry-specific catalysts. Outcomes remain subject to evolving market conditions and earnings results.
Disclaimer
The information on this webpage is provided for general informational and educational purposes only and is not intended as investment advice, a recommendation to purchase or sell any security, or an offer or solicitation related to investments. It does not consider your personal financial situation, goals, or risk profile, and all investing carries inherent risks, including the possibility of losing your entire investment. For more details, please review our full disclaimer.
To compare these two companies we present long-term analysis, their fundamental ratings and make comparative short-term technical analysis which are presented below. The conclusion is ASX is a Buy and UMC is a Hold.
Long-Term Analysis
It is best to consider a long-term outlook for a ticker by using Fundamental Analysis (FA) ratings. The rating of 1 to 100, where 1 is best and 100 is worst, is divided into thirds. The first third (a green rating of 1-33) indicates that the ticker is undervalued; the second third (a grey number between 34 and 66) means that the ticker is valued fairly; and the last third (red number of 67 to 100) reflects that the ticker is undervalued. We use an FA Score to show how many ratings show the ticker to be undervalued (green) or overvalued (red).
ASX’s FA Score shows that 2 FA rating(s) are green whileUMC’s FA Score has 1 green FA rating(s).
- ASX’s FA Score: 2 green, 3 red.
- UMC’s FA Score: 1 green, 4 red.
Short-Term Analysis
It is best to consider a short-term outlook for a ticker by using Technical Analysis (TA) indicators. We use Odds of Success as the percentage of outcomes which confirm successful trade signals in the past.
If the Odds of Success (the likelihood of the continuation of a trend) for each indicator are greater than 50%, then the generated signal is confirmed. A green percentage from 90% to 51% indicates that the ticker is in a bullish trend. A red percentage from 90% - 51% indicates that the ticker is in a bearish trend. All grey percentages are below 50% and are considered not to confirm the trend signal.
ASX’s TA Score shows that 5 TA indicator(s) are bullish while UMC’s TA Score has 4 bullish TA indicator(s).
- ASX’s TA Score: 5 bullish, 5 bearish.
- UMC’s TA Score: 4 bullish, 6 bearish.
Price Growth
ASX (@Semiconductors) experienced а -4.53% price change this week, while UMC (@Semiconductors) price change was -2.31% for the same time period.
The average weekly price growth across all stocks in the @Semiconductors industry was -2.82%. For the same industry, the average monthly price growth was -18.21%, and the average quarterly price growth was +36.18%.
Reported Earning Dates
ASX is expected to report earnings on Oct 22, 2026.
UMC is expected to report earnings on Oct 28, 2026.
Industries' Descriptions
@Semiconductors (-2.82% weekly)The semiconductor industry manufacturers all chip-related products, including research and development. These chips are used in innumerable electronic devices, including computers, cell phones, smartphones, and GPSs. Intel Corporation, NVIDIA Corp., and Broadcomm are some of the prominent players in this industry. Semiconductor companies usually tend to do well during periods of healthy economic growth, thereby inducing further research and development in the industry – which in turn augurs well for productivity and growth in the economy. In the near future, demand for semiconductor products (and possibly innovation within the segment) should only expand further, with the proliferation of 5G, autonomous vehicles, IoT, and various AI-driven electronics set to herald a new, advanced chapter in the technology-driven world as we know it. With burgeoning prospects comes great competition. In 2015, SIA estimated that U.S. semiconductor industry ranks as the second most competitive U.S. industry out of 2882 U.S. industries designated manufacturers by the U.S. Census Bureau.
| ASX | UMC | ASX / UMC | |
| Capitalization | 75.3B | 46.8B | 161% |
| EBITDA | 158B | 155B | 102% |
| Gain YTD | 120.645 | 146.373 | 82% |
| P/E Ratio | 43.63 | 18.70 | 233% |
| Revenue | 711B | 251B | 283% |
| Total Cash | 107B | 147B | 73% |
| Total Debt | 296B | 54.3B | 545% |
ASX | UMC | ||
|---|---|---|---|
OUTLOOK RATING 1..100 | 60 | 61 | |
VALUATION overvalued / fair valued / undervalued 1..100 | 52 Fair valued | 38 Fair valued | |
PROFIT vs RISK RATING 1..100 | 20 | 41 | |
SMR RATING 1..100 | 50 | 45 | |
PRICE GROWTH RATING 1..100 | 35 | 36 | |
P/E GROWTH RATING 1..100 | 7 | 16 | |
SEASONALITY SCORE 1..100 | 50 | 50 |
Tickeron ratings are formulated such that a rating of 1 designates the most successful stocks in a given industry, while a rating of 100 points to the least successful stocks for that industry.
UMC's Valuation (38) in the Semiconductors industry is in the same range as ASX (52). This means that UMC’s stock grew similarly to ASX’s over the last 12 months.
ASX's Profit vs Risk Rating (20) in the Semiconductors industry is in the same range as UMC (41). This means that ASX’s stock grew similarly to UMC’s over the last 12 months.
UMC's SMR Rating (45) in the Semiconductors industry is in the same range as ASX (50). This means that UMC’s stock grew similarly to ASX’s over the last 12 months.
ASX's Price Growth Rating (35) in the Semiconductors industry is in the same range as UMC (36). This means that ASX’s stock grew similarly to UMC’s over the last 12 months.
ASX's P/E Growth Rating (7) in the Semiconductors industry is in the same range as UMC (16). This means that ASX’s stock grew similarly to UMC’s over the last 12 months.
| ASX | UMC | |
|---|---|---|
| RSI ODDS (%) | 4 days ago 84% | 4 days ago 73% |
| Stochastic ODDS (%) | 4 days ago 67% | 4 days ago 70% |
| Momentum ODDS (%) | 4 days ago 63% | 4 days ago 57% |
| MACD ODDS (%) | 4 days ago 63% | 4 days ago 60% |
| TrendWeek ODDS (%) | 4 days ago 60% | 4 days ago 63% |
| TrendMonth ODDS (%) | 4 days ago 53% | 4 days ago 63% |
| Advances ODDS (%) | 4 days ago 75% | 4 days ago 63% |
| Declines ODDS (%) | 6 days ago 60% | 6 days ago 62% |
| BollingerBands ODDS (%) | 4 days ago 82% | 4 days ago 65% |
| Aroon ODDS (%) | 4 days ago 72% | 4 days ago 51% |
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UMC and
Correlation & Price change
A.I.dvisor indicates that over the last year, UMC has been loosely correlated with GFS. These tickers have moved in lockstep 58% of the time. This A.I.-generated data suggests there is some statistical probability that if UMC jumps, then GFS could also see price increases.
| Ticker / NAME | Correlation To UMC | 1D Price Change % | ||
|---|---|---|---|---|
| UMC | 100% | +0.48% | ||
| GFS - UMC | 58% Loosely correlated | +0.20% | ||
| LRCX - UMC | 58% Loosely correlated | -1.58% | ||
| KLAC - UMC | 57% Loosely correlated | +1.38% | ||
| AMAT - UMC | 55% Loosely correlated | +1.18% | ||
| ASX - UMC | 54% Loosely correlated | +1.15% | ||
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