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ACLS vs ARM
Which Stock Would AI Choose? Axcelis Technologies (ACLS) vs. Arm Holdings (ARM) Stock Comparison
Key Takeaways
- ACLS has delivered a YTD return of approximately 74%, outperforming the S&P 500's 6%, driven by semiconductor equipment demand.
- ARM shows stronger YTD gains at around 88%, fueled by AI chip architecture adoption and recent in-house CPU developments.
- Both stocks operate in the semiconductor sector but differ in business models: ACLS manufactures ion implantation equipment, while ARM licenses CPU designs.
- ACLS trades at a lower P/E ratio (37x) compared to ARM's elevated 278x, reflecting differing growth expectations.
- Recent market activity highlights volatility in semis, with ARM benefiting from AI tailwinds and ACLS from memory recovery signals.
- Upcoming earnings for both could shift sentiment: ACLS on May 7 and ARM on May 6, 2026.
Introduction
This stock comparison examines ACLS (Axcelis Technologies) and ARM (Arm Holdings), two key players in the semiconductor ecosystem amid surging demand for AI and advanced computing. ACLS focuses on ion implantation tools essential for chip doping, while ARM dominates CPU intellectual property licensing. Traders seeking exposure to semiconductor equipment and design, and investors tracking relative performance in a volatile sector, will find value in analyzing their business models, recent momentum, and market positioning. Both have shown robust gains in recent market activity, but contrasts in scale, growth drivers, and valuation offer trade-offs for portfolio strategies.
ACLS Overview and Recent Performance
Axcelis Technologies (ACLS) designs and manufactures ion implantation systems, a critical step in semiconductor fabrication for introducing dopants into silicon wafers. This equipment supports advanced nodes in logic, memory, and power devices. In recent weeks, ACLS shares have exhibited strong momentum, with a year-to-date return of 74% and a one-year gain of 168%, significantly outpacing the S&P 500. The stock recently hit a 52-week high near $148 before pulling back to around $140, reflecting broader semiconductor recovery.
Sentiment has been bolstered by Q4 2025 results showing $238 million in revenue and non-GAAP EPS of $1.49, beating estimates despite a slight year-over-year decline. Key influences include anticipated memory market rebound and a pending merger with Veeco Instruments, expected to enhance capabilities in compound semiconductors. Q1 2026 guidance points to about $195 million in revenue, with earnings due May 7. Trading at a market cap of $4.3 billion and P/E of 37x, ACLS benefits from solid free cash flow over $100 million annually and zero debt, though cyclical equipment demand introduces volatility.
ARM Overview and Recent Performance
Arm Holdings (ARM) develops and licenses central processing unit (CPU) intellectual property and related technologies for semiconductors, powering most mobile devices and increasingly data centers via Armv9 architecture. Recent market activity has propelled ARM shares higher, with a YTD return of 88% and one-year gain of 71%, amid AI-driven adoption. The stock trades around $209, with a 52-week range from $100 to $238, showing high beta of 3.41.
Performance reflects robust royalty growth, up 21% year-over-year to $620 million in recent quarters, alongside licensing from cloud and AI hyperscalers. Developments like the new in-house AGI CPU for data centers signal a strategic shift, projecting billions in added revenue by 2029. Q2 FY2026 revenue hit $1.14 billion, surpassing expectations. With a $222 billion market cap and P/E over 278x, ARM commands premium valuation due to high gross margins near 97% and minimal capex as a fabless licensor. Q4 earnings on May 6 could catalyze further moves, though AI spending concerns pose risks.
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Head-to-Head Comparison
ACLS and ARM share semiconductor exposure but diverge sharply. Business models contrast: ACLS is capital-intensive equipment manufacturing tied to fab capex cycles, while ARM enjoys asset-light IP licensing with recurring royalties. Growth drivers differ—ACLS relies on memory and power semi recovery, ARM on AI/data center proliferation via Neoverse platforms.
Recent momentum favors ARM with broader AI catalysts, versus ACLS's merger and earnings beats. Risk factors include cyclical downturns for ACLS (revenue flat in 2026 guidance) and competition/royalty rate pressures for ARM. Sector-wise, both tap AI indirectly, but ARM has direct hyperscaler ties. Market sentiment leans premium for ARM's scalability, while ACLS offers value at lower multiples, trading off stability for explosive potential.
Tickeron AI Verdict
Tickeron’s AI currently favors ARM due to superior trend consistency in AI infrastructure, stronger YTD momentum, and catalysts like the AGI CPU launch amid robust royalty growth. While ACLS shows relative value and memory upside, ARM's positioning in high-growth data centers offers higher probabilistic outperformance in the prevailing environment, subject to earnings outcomes.
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. Disclaimers and Limitations
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 ACLS is a Hold and ARM 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).
ACLS’s FA Score shows that 1 FA rating(s) are green whileARM’s FA Score has 1 green FA rating(s).
- ACLS’s FA Score: 1 green, 4 red.
- ARM’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.
ACLS’s TA Score shows that 3 TA indicator(s) are bullish while ARM’s TA Score has 3 bullish TA indicator(s).
- ACLS’s TA Score: 3 bullish, 4 bearish.
- ARM’s TA Score: 3 bullish, 5 bearish.
Price Growth
ACLS (@Electronic Production Equipment) experienced а +15.71% price change this week, while ARM (@Semiconductors) price change was -0.44% for the same time period.
The average weekly price growth across all stocks in the @Electronic Production Equipment industry was +3.21%. For the same industry, the average monthly price growth was +27.85%, and the average quarterly price growth was +145.22%.
The average weekly price growth across all stocks in the @Semiconductors industry was +7.94%. For the same industry, the average monthly price growth was +46.82%, and the average quarterly price growth was +84.93%.
Reported Earning Dates
ACLS is expected to report earnings on Aug 05, 2026.
ARM is expected to report earnings on Jul 29, 2026.
Industries' Descriptions
@Electronic Production Equipment (+3.21% weekly)The electronic production equipment industry makes equipment used to produce semiconductors. Such equipment includes wafer fabrication, plasma etching and photo-resist processing equipment. The industry also makes chemical vapor deposition processing systems and photomasks, which are high-purity quartz plates that contain patterns to define integrated circuits layouts. Applied Materials, Inc., Lam Research Corporation, and KLA-Tencor Corporation are examples of electronic production equipment manufacturing companies.
@Semiconductors (+7.94% 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.
| ACLS | ARM | ACLS / ARM | |
| Capitalization | 4.97B | 221B | 2% |
| EBITDA | 139M | 1.11B | 13% |
| Gain YTD | 101.195 | 90.211 | 112% |
| P/E Ratio | 50.20 | 244.61 | 21% |
| Revenue | 845M | 4.67B | 18% |
| Total Cash | 367M | 3.54B | 10% |
| Total Debt | 42M | 461M | 9% |
ACLS | ||
|---|---|---|
OUTLOOK RATING 1..100 | 82 | |
VALUATION overvalued / fair valued / undervalued 1..100 | 61 Fair valued | |
PROFIT vs RISK RATING 1..100 | 58 | |
SMR RATING 1..100 | 71 | |
PRICE GROWTH RATING 1..100 | 35 | |
P/E GROWTH RATING 1..100 | 3 | |
SEASONALITY SCORE 1..100 | 30 |
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.
| ACLS | ARM | |
|---|---|---|
| RSI ODDS (%) | 1 day ago 83% | 1 day ago 86% |
| Stochastic ODDS (%) | 1 day ago 74% | 1 day ago 68% |
| Momentum ODDS (%) | N/A | 1 day ago 82% |
| MACD ODDS (%) | 1 day ago 72% | 1 day ago 64% |
| TrendWeek ODDS (%) | 1 day ago 80% | 1 day ago 75% |
| TrendMonth ODDS (%) | 1 day ago 83% | 1 day ago 89% |
| Advances ODDS (%) | 3 days ago 82% | 8 days ago 87% |
| Declines ODDS (%) | 15 days ago 78% | 1 day ago 79% |
| BollingerBands ODDS (%) | 1 day ago 80% | 1 day ago 69% |
| Aroon ODDS (%) | 1 day ago 85% | 1 day ago 90% |
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| CMLCX | 61.50 | 0.23 | +0.38% |
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| FEFAX | 31.01 | -0.04 | -0.13% |
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ACLS and
Correlation & Price change
A.I.dvisor indicates that over the last year, ACLS has been closely correlated with VECO. These tickers have moved in lockstep 85% of the time. This A.I.-generated data suggests there is a high statistical probability that if ACLS jumps, then VECO could also see price increases.
| Ticker / NAME | Correlation To ACLS | 1D Price Change % | ||
|---|---|---|---|---|
| ACLS | 100% | -2.08% | ||
| VECO - ACLS | 85% Closely correlated | +0.41% | ||
| NXPI - ACLS | 71% Closely correlated | -3.84% | ||
| ADI - ACLS | 70% Closely correlated | -0.73% | ||
| QCOM - ACLS | 70% Closely correlated | -11.46% | ||
| POWI - ACLS | 70% Closely correlated | -4.61% | ||
More | ||||
ARM and
Correlation & Price change
A.I.dvisor indicates that over the last year, ARM has been closely correlated with LRCX. These tickers have moved in lockstep 74% of the time. This A.I.-generated data suggests there is a high statistical probability that if ARM jumps, then LRCX could also see price increases.
| Ticker / NAME | Correlation To ARM | 1D Price Change % | ||
|---|---|---|---|---|
| ARM | 100% | -2.22% | ||
| LRCX - ARM | 74% Closely correlated | -2.30% | ||
| KLAC - ARM | 74% Closely correlated | -1.83% | ||
| AMAT - ARM | 73% Closely correlated | -2.80% | ||
| FORM - ARM | 73% Closely correlated | -12.80% | ||
| VECO - ARM | 66% Closely correlated | +0.41% | ||
More | ||||