KLA Corporation: Process Control Leadership in the AI-Driven Semiconductor Cycle

KLA Corporation is the world's leading supplier of process control and yield management systems for the semiconductor manufacturing industry. Headquartered in Milpitas, California, the company designs, manufactures, and services a suite of inspection, metrology, and data analytics tools that enable chipmakers to detect and classify defects during wafer fabrication. Unlike lithography (ASML) or etch (Lam Research, Applied Materials), KLA's tools do not pattern or modify wafers — they measure and verify, making the company's equipment essential for improving yield and reducing manufacturing costs.

KLAC generates revenue through two primary segments: Semiconductor Process Control (approximately 85% of sales) and Specialty Semiconductors & Advanced Packaging (approximately 15%). The company sells to all major logic, memory, and foundry manufacturers, including TSMC, Samsung, Intel, SK Hynix, and Micron, as well as to OSATs and specialty fabs. With a global installed base of roughly 45,000 systems and an annual R&D budget exceeding $1.5B, KLA maintains technological leadership in broadband plasma inspection, e-beam review, and optical critical dimension metrology.

Scale metrics underscore the company's market position: FY2025 (ending June) revenue was approximately $11.2B, with operating income near $4.2B and net income of $3.3B. The company employs over 15,000 people worldwide and operates manufacturing and support facilities in the U.S., Israel, Germany, and Asia. KLA's business model is characterized by high gross margins (60–62%), reflecting both the technical complexity of its tools and the substantial recurring revenue from service contracts.

Near-term growth (next 4–6 quarters) is supported by the current WFE upcycle, driven by AI logic chip demand and memory makers' transition to HBM3E/HBM4. We estimate WFE spending will grow 8–10% in 2026 and 6–8% in 2027, with process control spend growing faster at 12–15% annually. KLAC's order backlog, which stood at roughly $3.5B as of the last reported quarter, provides visibility into the next two quarters. Management has guided for FY2026 revenue of $12.0–$12.4B, representing 8–10% year-over-year growth, with EPS in the range of $9.20–$9.80.

Medium-term growth (through 2028) will be driven by three structural forces. First, the industry's transition to 2nm and 1.4nm nodes will require new inspection capabilities — particularly for detecting buried defects in GAA structures — which we expect to drive a 20%+ increase in process control intensity. Second, advanced packaging for AI accelerators, including chiplets and 2.5D/3D integration, is creating a new inspection TAM estimated at $2–3B by 2028, where KLAC holds early leadership with its packaging inspection tools. Third, the growing adoption of silicon photonics and power semiconductors for electric vehicles and data centers broadens the addressable base into specialty fabs that historically underinvested in process control.

We project KLAC's revenue to reach $15.5–$16.0B by FY2028, representing a 12–14% CAGR from FY2025. This growth assumes process control TAM expands from $10.5B to $14.5B and KLA maintains its ~58% share. The key risk to this outlook is a sharper-than-expected cyclical downturn in 2027, which could compress growth to 5–7%, but the secular drivers above should mitigate downside severity relative to prior cycles.

Historical results reflect KLA's strong execution through the 2024 cyclical recovery, with revenue growing 13% in FY2025 on the back of AI-driven demand. Gross margin expansion of 70 basis points was driven by favorable product mix toward high-end inspection tools and improved service attach rates. Operating leverage from fixed R&D and SG&A costs translated into 16% operating income growth, outpacing revenue.

Looking forward, we model continued margin expansion as KLAC scales its service business (which carries 60%+ gross margins) and as next-generation tools command pricing premiums of 15–20% over prior platforms. EPS growth of 17–20% annually through FY2028 is supported by both operational leverage and a modest share buyback program (we assume ~2% annual reduction in share count). Free cash flow conversion remains robust at ~34% of revenue, providing ample capital for dividends and strategic M&A in adjacent metrology markets.

The semiconductor wafer fabrication equipment (WFE) market is projected to grow from $95B in 2025 to $130B by 2028, a 11% CAGR driven by AI accelerators, memory transitions, and government-sponsored fab expansions in the U.S., Europe, and Japan. Within WFE, the process control segment — comprising inspection, metrology, and review tools — represents approximately $11B today and is expected to reach $15B by 2028, growing faster than the overall market due to rising defect density requirements at advanced nodes.

KLA holds a commanding ~58% share of the process control market, with particular dominance in optical inspection (est. 70% share) and e-beam review (est. 50% share). This market position is protected by decades of accumulated defect library data, proprietary algorithms, and customer qualification cycles that make switching nearly impossible without risking yield loss. The competitive landscape is concentrated, with three primary players:

Beyond these direct competitors, KLAC faces indirect competition from in-house metrology solutions developed by leading chipmakers (e.g., TSMC, Samsung) and from emerging AI-based defect detection software from startups. However, we view these threats as manageable given KLAC's hardware-software integration and the high cost of qualifying alternative solutions. The broader WFE peers — Lam Research (LRCX) and Tokyo Electron (8035.T) — compete in etch and deposition, not directly in process control, though they may bundle inspection tools with their platforms in the future.

We value KLAC using a combination of discounted cash flow (DCF) analysis and comparable company multiples. Our DCF model assumes a 10% weighted average cost of capital (WACC), reflecting the company's low leverage and moderate cyclicality, and a terminal growth rate of 4% — consistent with long-term semiconductor industry growth. Using our FY2026–FY2028 projections, we arrive at a fair value of approximately $245 per share, implying a 37% upside from the current price of $179.03.

KLAC's shares trade at a discount to its 5-year average forward P/E of 22x, reflecting investor concerns about cyclicality and the recent AI-related selloff. However, given KLAC's superior margins (38% operating vs. AMAT's 29% and LRCX's 31%), dominant process control franchise, and higher growth visibility from service revenue, we believe the stock warrants a premium multiple of 20–22x forward earnings. On a relative basis, KLAC trades at a 16% discount to ONTO on P/E, despite generating significantly higher returns on invested capital (ROIC of 35% vs. ONTO's 18%).

Applying a 20x multiple to our CY2027 EPS estimate of $11.20 yields a price target of $224. Cross-checking with our DCF value of $245 and a sum-of-the-parts analysis (attributing 25x to the service annuity and 18x to product sales), we establish a 12-month price target of $235, representing approximately 31% upside from current levels.

• Semiconductor Cyclicality: KLAC's revenue is highly correlated with the global WFE cycle, which historically experiences 20–30% swings every 3–4 years. A sharper-than-expected downturn in 2027 — driven by memory oversupply or AI capex digestion — could reduce revenue by 15–20% and compress EPS by 30%+, as witnessed in 2023 when EPS fell from $8.50 to $6.10.
• Customer Concentration: TSMC, Samsung, and Intel collectively account for approximately 45% of KLAC's revenue. Any slowdown in a single customer's fab expansion plans, geopolitical restrictions on exports to China (which represented ~25% of 2025 sales), or a shift toward in-house inspection could materially impact results.
• Technology Disruption: Emerging alternatives such as machine-learning-based defect detection software, inline metrology using scanning electron microscopes from AMAT, or next-generation actinic inspection for EUV masks could erode KLAC's optical inspection moat. While we view this as a low-probability event over 3–5 years, the pace of AI-enabled defect classification could accelerate competitive threats.
• Geopolitical and Export Control Risk: The U.S.-China trade war and expanding export controls on advanced semiconductor tools could restrict KLAC's ability to sell to Chinese customers, who contributed ~25% of FY2025 revenue. A complete ban on process control exports to China would reduce revenue by ~$2.5B and EPS by ~$2.00, though some mitigation could come from increased domestic (non-China) demand.
• Valuation and Multiple Compression Risk: At the current price, KLAC trades at 18.8x forward earnings — a reasonable level — but if the market re-rates the entire semiconductor equipment sector downward due to rising interest rates or a broader tech correction, KLAC's high beta (1.46) could amplify downside. A reversion to 15x forward earnings would imply a price of $142, or 21% below current levels.