Elon Musk's idea of fusing Tesla with SpaceX into a single US$3.6tn giant has thrown a spotlight on who actually builds and equips the fabs that would feed such large-scale AI and cloud plans. If capital flows toward that vision, the businesses wiring up fabs, cleanrooms and wafer tools could face a very different landscape compared with those left on the sidelines. This article examines three stocks connected to this potential merger story and explains why their positioning may matter for a diversified portfolio.
The three stocks in this article are just a starting sample. The full screen surfaced 67 more companies with equally compelling narratives that are not covered here and may offer very different ways to gain exposure to fab construction, tooling and financing.
To go deeper into this idea, head straight into the Semiconductor Fab Builders and Enablers screener to identify, filter and analyze the highest conviction semiconductor fab builders and enablers aligned with your own risk and return priorities.
ASM International (ENXTAM:ASM)
Overview:ASM International supplies the wafer deposition and epitaxy equipment that chip makers rely on to build advanced semiconductor fabs worldwide.
Operations:ASM International generates about €3.4b from semiconductor equipment and services, with revenue concentrated in Asia at €2.7b, the United States at €492 million, and Europe at €184 million.
Market Cap:€37.2b
ASM International matters for this screener because its tools sit directly in the wafer processing flow. Any major fab build or upgrade can quickly feed into its order book.
"The ramp up of advanced logic nodes such as 2nm and 1.4nm for AI and high performance computing workloads continues to raise ALD and epitaxy layer counts. ASM International links this to a larger served market supporting revenue growth that the market may not yet fully reflect."
What really shapes the opportunity from here is how one still developing shift in its business mix influences earnings quality over time.
That shift is the real story, and the full narrative for ASM International maps how earnings quality, capital intensity and cycle risk could be decoupling faster than the headline tools narrative suggests.
ACM Research (ACMR)
Overview:ACM Research makes wet cleaning, plating and advanced packaging tools that chip fabs and assembly plants use on wafers worldwide.
Operations:ACM Research generates about US$1.0b from semiconductor equipment and services, with virtually all reported revenue tied to Mainland China customers.
Market Cap:US$3.8b
ACM Research fits directly into the Semiconductor Fab Builders and Enablers theme. Its cleaning and packaging platforms are ordered whenever new wafer capacity is planned or existing lines are upgraded, which links any surge in large scale AI and cloud compute spending to real hardware demand in its core markets.
"Advanced AI and high bandwidth memory demand is driving larger die sizes and more complex 2.5D and 3D integration, and ACM Research is already booking production and evaluation orders for panel-level electroplating and reporting triple digit advanced packaging revenue growth. This can support higher future revenue as deliveries in late 2026 and 2027 convert backlog to sales."
What happens to ACM Research's margins and growth from here hinges on how one unseen pressure inside that expanding order book ultimately resolves.
That hidden pressure is the hinge. Read the full narrative for ACM Research to see how it could accelerate ACM Research or quietly cap its next chapter.
Onto Innovation (ONTO)
Overview:Onto Innovation supplies process control, inspection, metrology and lithography tools that chipmakers rely on when building and running advanced fabs worldwide.
Operations:Onto Innovation generates about US$1.1b from semiconductor equipment and services, with revenue concentrated in Taiwan at US$341 million and South Korea at US$271 million.
Market Cap:US$10.8b
Onto Innovation matters for this fab builders screener because its inspection and metrology platforms effectively police the production lines that Musk-style mega compute projects depend on.
"The company's Dragonfly platform recently passed TSMC's New Tool Selection Committee qualification process for 2.5D advanced packaging applications. This is a significant milestone that could materially expand Onto's role in the semiconductor ecosystem over the next several years."
What this ultimately means for Onto Innovation's earnings power comes down to how one quiet shift in AI packaging demand intensity plays out.
If that shift is what you care about, the full narrative for Onto Innovation explains in detail how Onto Innovation's AI packaging exposure could be accelerating, masking risk or both.
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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.
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