▌Top Stocks · SEMICONDUCTOR CAPEX·Updated September 3, 2026
Best Semiconductor Capex Stocks for September 2026: 7 Picks
Seven semiconductor capex stocks span test, specialty process technology, inspection, broad equipment, lithography, and foundry exposure in a September 2026 countdown.
Top Stocks · SEMICONDUCTOR CAPEXUpdated September 3, 2026
Artificial intelligence is increasingly a manufacturing story, not only a chip-design story. Hyperscalers and foundries must keep expanding the tools, materials, packaging, testing, and memory capacity required to build and ship advanced compute. That makes semiconductor capital expenditure a broad investable theme, with beneficiaries spread across the production chain. A July 2026 industry forecast projects record global semiconductor manufacturing equipment sales of $165.9 billion for the year, while foundry and logic spending is expected to rise sharply as customers build out advanced-node AI capacity.
The structural drivers extend beyond accelerator demand. The push toward sub-2nm nodes raises process complexity, while greater HBM and DRAM intensity increases memory-related investment. Heterogeneous integration also expands the need for advanced packaging, inspection, cleaning, and test equipment. As a result, the opportunity set includes classic wafer-fab equipment companies, process-control specialists, lithography providers, test vendors, specialty component suppliers, and the foundry at the center of much of the advanced-logic buildout.
This countdown covers seven U.S.-listed semiconductor capex stocks with different degrees of direct exposure to that spending cycle. The ranking runs from #7 down to #1, weighing theme depth first and business fundamentals second. That approach places more direct manufacturing and foundry exposure ahead of companies with meaningful but narrower or more diversified participation in semiconductor investment.
The screen was limited to U.S.-listed companies with market capitalizations above $500 million and usable financial and operating data. Stocks were ordered primarily by the depth of their exposure to semiconductor capital expenditure, including wafer fabrication, lithography, process control, packaging, cleaning, memory, and test; profitability, growth, valuation, earnings execution, and analyst sentiment then informed the business-fundamentals comparison. The list is presented in countdown order, with the best-ranked pick reserved for #1 at the end.
What they do. The company designs and sells automated semiconductor test systems alongside robotics and other test instruments. Its Semiconductor Test segment serves integrated device manufacturers, fabless companies, foundries, and assembly-and-test providers with wafer-level, package, and system-level testing, while its FLEX, J750, Magnum, and ETS platforms address logic, volume semiconductor, memory, and analog/mixed-signal applications.
Why it fits. Teradyne participates in the capex cycle after wafers and packages are produced, helping manufacturers validate device performance and yield. Its Magnum platform specifically tests flash memory and DRAM, while its test-cell collaboration for AI and data-center device screening connects the company to the higher-complexity compute buildout. The robotics segment, however, makes TER less purely semiconductor-capex focused than the equipment companies ranked above it.
Numbers that matter. Teradyne generated $4.464 billion of revenue and reported a 59.2% gross margin, 33.16% operating margin, and 25.77% net margin. Revenue growth was 103.9% year over year, while earnings growth reached 385.8%, with next-year EPS estimated at 11.6525. The trailing P/E was 46.0797 and the forward P/E was 39.8406, showing that strong projected earnings growth is already being valued at a substantial multiple.
Recent momentum. In the latest reported quarter on July 28, 2026, EPS was $2.47 versus an estimate of $2.04, a 21.1% beat; the company has beaten estimates in 7 of 7 completed quarters in the supplied history. Analysts include 2 Buys, 4 Holds, and 1 Sell, producing a Buy consensus and an average target of $446.47.
What they do. The company supplies foundational technologies used in semiconductor manufacturing, electronics and packaging, and specialty industrial applications. Its Vacuum Solutions Division provides pressure, flow, gas delivery, power, and control technologies; its Photonics Solutions Division sells lasers and precision optics; and its Materials Solutions Division supplies surface modification, plating, and finishing technologies through direct sales, distributors, and representatives.
Why it fits. MKS gives investors exposure to the infrastructure underneath multiple fab processes rather than to a single tool category. Vacuum control, gas delivery, photonics, and surface-finishing products support the process complexity associated with advanced nodes, while the materials and packaging activities broaden its connection to heterogeneous integration. Its diversified divisions also explain why its semiconductor-capex exposure is meaningful but less direct than that of a dedicated wafer-fab equipment supplier.
Numbers that matter. MKS produced $4.347 billion in revenue, with a 47.0% gross margin, 20.59% operating margin, and 10.1% net margin. Revenue grew 28.3% year over year and earnings grew 162%, while next-year EPS is estimated at 17.6059. The trailing P/E of 40.8013 compares with a forward P/E of 10.3627, a large gap that reflects the strength of the earnings outlook but also places considerable importance on execution.
Recent momentum. MKS reported $3.30 of EPS for the August 5, 2026 quarter against a $2.94 estimate, exceeding expectations by 12.2%; its supplied earnings history shows 8 beats in 8 quarters. The analyst breakdown is 4 Buys and 1 Hold with no listed Sell, resulting in a Strong Buy consensus and an average target of $411.31.
What they do. The company designs and sells process-control, process-enabling, and yield-management systems for semiconductor and related electronics manufacturers. Its portfolio includes wafer and reticle inspection, defect review, metrology, chemical process control, and software for process correction and defect classification, as well as tools for specialty semiconductor processes, PCB inspection, and advanced packaging quality control.
Why it fits. KLA is a direct beneficiary of the rising number of process steps and yield challenges associated with advanced-node production. Inspection and metrology become increasingly important as manufacturers pursue smaller geometries, advanced packaging, and more complex device structures, making KLA a focused process-control exposure within the capex chain. Its specialty-process and packaging offerings add breadth without moving it far from semiconductor manufacturing investment.
Numbers that matter. Revenue was $13.579 billion, supported by a 61.3% gross margin, 42.49% operating margin, and 35.57% net margin. Revenue growth reached 15.2% year over year and earnings growth was 13.8%, with next-year EPS estimated at 5.1314. KLA's trailing P/E was 47.8683 and forward P/E was 34.0136; its 87.5% ROE and 20.8% ROA also underline the strength of the operating model, although the valuation remains demanding.
Recent momentum. The latest reported quarter, dated July 28, 2026, delivered EPS of $1.05 versus a $1.00 estimate, a 5.0% beat, extending the company's record to 8 beats in 8 quarters. Analysts list 5 Buys, 10 Holds, and 1 Sell, which equates to a Buy consensus and an average target of $234.35.
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What they do. The company sells semiconductor materials-engineering equipment and related services and software to wafer and chip manufacturers. Its Semiconductor Systems segment covers deposition, etch, rapid thermal processing, chemical mechanical planarization, metrology, inspection, wafer packaging, and ion implantation, while Applied Global Services supplies spares, upgrades, services, and factory-automation software.
Why it fits. Applied Materials offers unusually broad exposure to the equipment spending required to build advanced logic, memory, and packaged devices. Its combination of front-end process tools, wafer packaging, inspection, and recurring service activity connects it with several of the capex sub-segments expanding around AI infrastructure. That breadth makes AMAT a useful way to participate in a cycle that is no longer confined to a single process step.
Numbers that matter. Applied Materials generated $30.837 billion in revenue, with a 49.4% gross margin, 33.74% operating margin, and 30.05% net margin. Revenue grew 24.8% year over year and earnings grew 42.8%, while next-year EPS is estimated at 18.4583. The trailing P/E was 39.5215 and forward P/E was 25.7069, a premium multiple supported by strong profitability and growth but still sensitive to the timing of fab investment.
Recent momentum. In the latest reported quarter on August 13, 2026, EPS reached $3.50 against an estimate of $3.38, a 3.6% beat; Applied Materials has beaten estimates in all 8 quarters in the supplied history. Analysts show 4 Buys and 8 Holds with no listed Sell, producing a Strong Buy consensus and an average target of $640.31.
What they do. The company supplies lithography, metrology, inspection, computational-lithography, and control-software systems used by chipmakers to print and evaluate integrated-circuit patterns. Its portfolio spans extreme ultraviolet and deep ultraviolet lithography, YieldStar optical metrology, HMI electron-beam inspection, system upgrades, refurbishment, and customer support across major semiconductor manufacturing regions.
Why it fits.ASML has one of the most direct exposures in this group to the advanced-node capex engine because lithography is central to creating increasingly intricate chip patterns. The company's EUV and DUV systems address multiple node and technology requirements, while metrology, inspection, software, and service activity broaden the revenue model around each installed system. Its placement at #3 reflects exceptional theme relevance, tempered by a higher valuation than several peers.
Numbers that matter.ASML reported $35.328 billion of revenue and a 52.7% gross margin, 37.06% operating margin, and 30.11% net margin. Revenue growth was 21.3% year over year and earnings growth was 28.5%, with next-year EPS estimated at 51.6893. The trailing P/E of 57.4781 and forward P/E of 37.3134 are among the richer valuations in the group, though the company also posted a 53.94% ROE and 16.45% ROA.
Recent momentum.ASML's July 15, 2026 quarter produced EPS of $8.81 versus an estimate of $7.98, a 10.4% beat. The company has beaten estimates in 6 of 7 completed quarters in the supplied history, while analysts list 6 Buys, 4 Holds, and 1 Sell, resulting in a Strong Buy consensus and an average target of $2,141.15.
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This monthly screen begins with U.S.-listed companies above $500 million in market capitalization that have a clear connection to semiconductor capital expenditure. Exposure depth is the primary ranking factor: direct foundry, wafer-fabrication, lithography, process-control, packaging, memory, and test businesses receive more weight than diversified suppliers with only partial semiconductor participation. Business fundamentals provide the second filter, using profitability, revenue and earnings growth, valuation ratios, earnings-surprise history, analyst consensus, and the composite quality grade. The universe and data are refreshed monthly, so rankings can change as operating results, estimates, valuations, and theme exposure evolve.
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