KLA Corporation: A Deep Value Investment Analysis

Fact. KLA's core products are not the deposition or etch main tools that "make the wafer," but rather the inspection, metrology, chemical process control, and software that help customers detect defects, control pattern quality, and improve yield and stability across the full path from R&D to volume production. In the fiscal 2025 revenue mix, Wafer Inspection accounted for 51%, Patterning for 18%, and Services for 22%. Through the first nine months of fiscal 2026, services revenue still ran around 23%.

Fact. Services revenue comes mainly from product maintenance support contracts and time-and-materials billing; the company states explicitly that services revenue typically depends on the installed base of tools and tool utilization. This means KLA does not simply finish once the equipment is sold once; it builds subsequent cash flows as the installed base expands.

Fact. In its 2024 shareholder letter, KLA disclosed that services revenue grew to $2.3B in FY24, more than doubling since it first surpassed $1B in 2019. More importantly, over 75% of services revenue comes from recurring, subscription-like contracts. But note that this ">75%" applies to services revenue itself, not to the company's total revenue. In other words, this highly recurring revenue stream amounts to roughly a mid-double-digit share of total company revenue, not the bulk of it.

Inference. To distill the business into a single sentence: KLA makes money by "helping customers scrap fewer wafers, ramp faster, and stabilize yield." That value proposition is closer to "outcome-oriented" than simply selling equipment, which is why it is usually easier to secure budget in the era of advanced nodes and highly complex packaging.

Customers, Pricing Model, Stability, and Dependencies

Fact. KLA's customers are primarily wafer fabs, logic/foundry players, memory makers, and some packaging, PCB, and component manufacturers; revenue is highly concentrated in Asia. In fiscal 2025, China accounted for 33% of revenue, Taiwan 27%, and Korea 12%; in the first nine months of fiscal 2026, China still accounted for 31.2%, Taiwan 25.3%, and Korea 14.7%.

Fact. Customer concentration is meaningful. In fiscal 2025, one customer accounted for about 19% of total revenue; in the first nine months of fiscal 2026, one customer accounted for about 17%, and in the single quarter of March 2026, two customers accounted for 19% and 11%, respectively. This means KLA does not have a "retail-style" customer structure but a typical oligopolistic customer ecosystem.

Fact. The company states plainly that its business depends heavily on customer capital expenditure plans, and that the cadence of new orders and deliveries materially affects period revenue; at the same time, export controls, foreign exchange, and government subsidy policy also affect revenue recognition.

Opinion. This business is not simple, because the technical barriers are high, the cyclical swings are strong, customers are concentrated, and geopolitical risk is prominent; but its business logic is transparent: sell critical process-control tools, capture the complexity dividend of advanced nodes, then use services to lock in subsequent cash flows. If the stock market closed for 5 years, I would be willing to own this business itself; but whether I am willing to "own it at today's price," the answer is no.

Moat and Management

Moat Analysis

Brand and technology barriers. KLA has cultivated deep expertise in process control over the long term. In its FY24 shareholder letter, the company disclosed that its BBP optical pattern wafer inspection platform had about 3,000 units installed worldwide and had accumulated about 1,000 related patents. This says at least two things: first, its technology cannot be replicated by new entrants in the short term; second, customer fabs already house a large installed base of KLA tools running over the long term.

Switching costs. KLA's tools are typically embedded in customers' process development, defect databases, yield-improvement workflows, and service systems. Switching suppliers is not just buying a new machine; it means rebuilding inspection thresholds, process windows, engineer experience, and data interfaces. In its 10-K, KLA describes its solutions as helping customers "accelerate development and production ramp, achieve higher and more stable yields, and improve profitability." That kind of value proposition naturally implies high switching costs.

Scale and service network. Services revenue correlates positively with the installed base, and KLA's services business has already reached scale, with over 75% of FY24 services revenue coming from recurring contracts. The larger the installed base, the steadier the subsequent service revenue; the steadier the service revenue, the more it supports customer stickiness. This forms a classic "install-service-repurchase" flywheel.

Data and process embedding. KLA's competitiveness lies not only in hardware sensitivity but in software and analytics capability. In its core business description, the company explicitly groups inspection, metrology, and data analytics together, which means its advantage is a combination of "equipment + data + process understanding," not a single-component cost advantage.

Less obvious moats. Network effects are not KLA's core moat; channel advantages are not the most critical either. The real barrier comes from technology, installed base, services, accumulated data, and deep embedding in customer workflows.

My judgment: the moat is overall "stable and slightly widening." AI, advanced packaging, HBM, advanced logic, and complex multilayer structures are raising, not lowering, the necessity of process control. In both its 2026 Investor Day materials and its Q3 2026 earnings commentary, management positions the company as a key enabler of the AI ecosystem. That said, the moat is not risk-free: if domestic Chinese equipment makers clearly catch up in several sub-segments, or if larger equipment vendors continue to erode share in metrology/inspection, the moat could narrow.

Moat strength score: 4.5/5.

Is Management Trustworthy, and Is Capital Allocation Rational

Fact. KLA's framework for shareholder returns is clear. The company's website states explicitly that its long-term goal is to return 85% or more of free cash flow to shareholders through dividends and buybacks. In April 2026, the company raised the quarterly dividend to $2.30 per share and added a $7B buyback authorization; management noted this was the 17th consecutive year of annual dividend increases.

Fact. The buyback scale is real money: cash spent on common-stock repurchases in fiscal 2023, 2024, and 2025 was about $1.31B, $1.74B, and $2.15B, respectively; in the first nine months of fiscal 2026 the company repurchased about another $1.72B. From diluted share count of 158.0M in fiscal 2020 to 133.8M in fiscal 2025, a roughly 15% reduction over five years; by the end of March 2026 shares outstanding had fallen further to about 130.7M.

Fact. Management and shareholder interests are broadly aligned. Proxy filings show CEO stock-ownership requirements of 4x base salary, and 2x for EVP/SVP; as of 2025-06-30, the value of KLA stock held by Rick Wallace was about 55.2x his base salary. On long-term incentives, one of the core metrics for the FY25 annual PRSU grant is three-year relative free cash flow margin, with an SEC/Nasdaq-compliant clawback policy in place.

Fact. Management does not report only good news. In fiscal 2024 and 2025 the company disclosed deteriorating prospects for its PCB/Display-related businesses in consecutive years and took large impairments accordingly; in 2024 it also decided to exit the Display manufacturing business while continuing to service its installed customers. Such disclosures at least show it does not indefinitely drag out failing businesses.

Reservation. My biggest reservation about management is not integrity but valuation discipline at the time of buybacks. KLA's buybacks have helped per-share value grow over the long run, but the company also states plainly that one purpose of buybacks is to offset dilution from equity compensation. That means not every buyback is "deploying heavily when undervalued"; part of it is a routine capital-return framework. At today's valuation level, I am not willing to treat continued large-scale buybacks as a clear positive.

Management and capital allocation score: 4/5.

Financial Quality and Owner Earnings

Key Financial Quality

The table below mainly shows "whether this company earns with real cash." The 2020-2025 figures come from KLA's 2022, 2023, and 2025 10-Ks; LTM figures mainly bridge the 10-Q through 2026-03-31 with the Q3 2026 earnings release. Where the table notes "estimated," it reflects a simple derivation I made from official statements rather than the company's own reported figure.

My reading:

First, earnings quality is high. Across fiscal 2023-2025, operating cash flow exceeded net income to parent every year; over the trailing twelve months through March 2026, operating cash flow was about $4.40B and free cash flow about $4.01B. This is not a company that "earns a lot on paper but can't generate the cash."

Second, growth is not especially capital-intensive. KLA is not a heavy-asset, chemical-plant-style enterprise. In recent years capital expenditure has run around 3% of revenue, with LTM capex of about $387M, modest relative to LTM revenue of $13.10B. It looks more like a "high R&D spend but light capex" equipment/software/services hybrid business.

Third, the balance sheet is not fragile. As of the end of June 2025, cash, cash equivalents, and marketable securities totaled about $4.49B, with total debt of about $5.88B on the books; by the end of March 2026, this cash-plus-securities balance had risen to about $4.96B, with debt essentially unchanged. On a rough FY25 basis, net debt/EBITDA was about 0.25x and interest coverage about 17x, both very manageable. The company also holds investment-grade ratings: Fitch A, Moody's A2, S&P A.

Fourth, ROE looks beautiful, but read it carefully. KLA's long-running large buybacks have visibly compressed book equity, so ROE is inflated by "financial structure"; in fiscal 2025, for example, book shareholders' equity was only $4.69B while market cap exceeded $240B. As a result, KLA's PB metric has lost nearly all valuation meaning, and ROE should not be compared directly against non-repurchasing companies.

Fifth, it is not entirely without blemishes. In fiscal 2024 and 2025, the PCB/Display-related businesses took impairments and restructuring in consecutive years, and in 2024 the company decided to exit the Display manufacturing business. This is not evidence of financial fraud; it looks more like timely cutting of losses on weak non-core businesses. But it is a reminder: KLA is not "equally excellent across every segment"; what is truly excellent is the process-control core, not all of its sub-businesses.

Sixth, there is a structural tax tailwind, and also a risk of future increases. The 2023 10-K shows that Singapore tax incentives provided about $162M of tax benefit in fiscal 2023, and 2022 also had a one-time remeasurement benefit; meanwhile the 2025 10-K cautions that OBBBA, OECD Pillar Two, and Singapore's top-up tax could begin to adversely affect the effective tax rate starting in the first quarter of fiscal 2026. In other words, KLA's profitability is very strong, but future tax rates may not always be this friendly.

Owner Earnings Analysis

Here I separate fact, assumption, and inference.

Fact. Over the trailing twelve months through 2026-03-31, KLA's operating cash flow was about $4.40B and free cash flow about $4.01B; for the same period, full-year FY25 SBC was $265M, SBC for the first nine months of fiscal 2026 was $228M, and for the first nine months of fiscal 2025 was $194M, from which LTM SBC can be roughly derived as about $299M.

Assumption. I adopt a conservative definition of Owner Earnings:

• Start with LTM operating cash flow of $4.40B

• Subtract LTM capital expenditure of $0.387B

• Then subtract LTM SBC of about $0.299B, treating equity compensation as a real economic cost rather than "a negligible non-cash item"

On this basis, conservative Owner Earnings is about $3.72B. The corresponding Owner Earnings per share is roughly $28.5 per share, using shares outstanding of about 130.7M as of 2026-03-31.

Inference. Without adding SBC back, KLA's "cash distributable to equity owners" is closer to LTM FCF of $4.01B; if SBC is treated as a real cost, then Owner Earnings is closer to $3.72B. I lean toward the latter for conservative valuation, because it more closely reflects the thinking of "if I were a 100% acquirer, would I still be willing to treat this dilution as a free lunch."

Conclusion. At the current market cap of about $242.71B, KLA's current valuation is roughly equivalent to:

• about 60x LTM free cash flow

• about 65x conservative Owner Earnings

• about 52x TTM GAAP EPS

This is not cheap, and it is certainly not a price "with a margin of safety."

Intrinsic Value and Margin of Safety

Three Valuation Methods

Owner Earnings Discount Method

Below is my valuation model. It is an assumption, not a fact.

Base inputs:

• Starting Owner Earnings: $3.72B

• Discount rate: conservative 10%, neutral 9.5%, optimistic 9%

• Terminal growth: conservative 3%, neutral 3.5%, optimistic 4%

• Share count: about 130.7M

• Valuation horizon: 10 years

Scenario assumptions:

• Conservative scenario: Owner Earnings grows 4% annually for the first 5 years, 3% for the next 5

• Neutral scenario: 7% for the first 5 years, 5% for the next 5

• Optimistic scenario: 10% for the first 5 years, 7% for the next 5

My calculated results:

Opinion. This result looks "harsh," but it actually conveys something simple: when you view KLAC through a valuation framework centered on cash returns to shareholders, today's price is no longer a "reasonably high price" but more like "too expensive."

Relative Valuation Method

Fact. KLAC currently trades at about 52.17x PE, while the shareholder cash yield based on LTM free cash flow is only about 1.7%; the annualized dividend, using the new quarterly dividend of $2.30, implies a dividend yield of only about 0.5%. At the same time, the U.S. 10-year Treasury yield had risen to about 4.69% as of 2026-05-21. In other words, a new buyer of KLAC takes on the risk of a cyclical equipment stock yet receives a starting cash yield below that of high-grade risk-free bonds.

Fact. The capital markets are assigning high valuation premiums to large semiconductor equipment stocks across the board. In a February 2026 report, Reuters noted that Applied Materials had a market cap of about $260.65B at the time; while May 2026 news shows AMAT's closing price near $426-427, and Lam Research around $302.24, with both companies' latest quarters also offering strong AI-driven narratives.

Inference. Because a complete same-day, like-for-like set of PE/PFCF/EV/EBITDA data is not available from publicly accessible sources, I will not turn this section into a "precise to the decimal point" comparison table. But based on the known facts, KLAC is by no means cheap because the market is ignoring it; on the contrary, it is being fully, even excessively, priced by market enthusiasm.

Asset or Liquidation Value Method

Fact. As of 2026-03-31, KLA held cash, cash equivalents, and marketable securities totaling about $4.96B; long-term debt was about $5.89B on the books. This is not a net-cash company, nor a stock that wins on "discount to book assets."

Opinion. KLA's investment value rests almost entirely on future cash flows, technology leadership, and capital-return capability, not on a floor of book assets. Therefore, this is a quality stock, not an asset stock. Once valuation gets absurdly expensive, the asset method offers almost no help.

Valuation Conclusion and Margin of Safety

Combining the conservative DCF, relative valuation, and quality premium, I offer the ranges below. They are not precise answers but a rough framework for "how much a long-term owner is willing to pay."

• Conservative intrinsic value range: $600-$850 per share

• Reasonable intrinsic value range: $850-$1,100 per share

• Optimistic intrinsic value range: $1,100-$1,300 per share

• Current price relative to reasonable intrinsic value: a clear premium

• Ideal buy price range: $700-$900 per share

• Acceptable holding price range: $900-$1,150 per share

• Clearly overvalued price range: above $1,300 per share

At the current price of about $1,842.86 per share, KLAC still trades at roughly a 67% premium to the upper bound of my reasonable intrinsic value; relative to the neutral value from the conservative DCF, the premium is even higher.

Margin of safety conclusion: there is no margin of safety today. And the most fragile assumption is not "whether it will keep growing," but whether the market will remain willing over the long run to keep awarding it an extremely high valuation multiple.

Risks, Bear Case, and Opportunity Cost

The Most Important Risks and the Strongest Bear Case

Competition and technology substitution risk. Although KLA is very strong in process control, the upstream equipment industry always carries the risk of cross-entry by large vendors, substitution in specific sub-segments, and catch-up by domestic Chinese equipment makers. The company itself acknowledges in its risk factors that export restrictions could make it easier for domestic Chinese competitors to develop and take share.

Cyclical risk. Semiconductors trend up over the long run, but capital expenditure can be extremely volatile in the short term. KLA itself states plainly that revenue is affected by the cadence of customer orders and deliveries; high margins under boom conditions may incorporate a cyclical dividend rather than being 100% structural advantage.

Customer concentration and geopolitical risk. Customer concentration was already high, and layering on the significant weight of China exposure means that any large customer delaying capacity expansion, changing its procurement structure, or any new round of tightening export licenses could affect order and service cadence.

Tax rate and policy risk. Low tax rates over the past few years were partly driven by tax incentives; the 2025 10-K has already cautioned that OBBBA, Pillar Two, and Singapore's top-up tax could push future tax rates higher.

Overvaluation risk. This may be the most realistic risk. Even if the company stays excellent, if the valuation multiple regresses from 50x+ to 25x-30x over the next 5-10 years, shareholder returns could be quite mediocre, and there could even be a long stretch of "earning the company's money but not the shareholder's money."

The strongest bear case can be summarized as: KLA may be a great company, but buying it today means buying something closer to "the market's perpetual optimism about AI and process control" than "a cheap cash-flow asset." If AI spending growth slows, memory/foundry capex enters a digestion phase, or the China market stays restricted, the current valuation could compress sharply. In that case, the real permanent loss of capital would not necessarily come from the business deteriorating, but from paying too much.

What Facts Would Overturn the Investment Judgment

If the following facts emerge, I would consider the long-term bull case for KLA clearly weakened, and might even have to admit the judgment was wrong:

• KLA suffers persistent share loss in key process-control areas, and not from a single-product-line misstep.

• Services growth slows significantly and renewal quality deteriorates, indicating weakening installed base and customer stickiness.

• Gross margin and operating margin fall below their historical high range over the long term within a normal cycle, and not as a short-term trough.

• Operating cash flow and net income diverge over the long term, with a marked deterioration in free cash flow conversion.

• Domestic Chinese manufacturers achieve verifiable substitution in several key sub-segments and erode KLA's pricing power.

• Management continues large-scale buybacks during high-valuation periods without discipline matched to growth in per-share intrinsic value.

• The combination of rising tax rates, export controls, and customer concentration drives a step-down in KLA's structural profitability.

Comparison with Other Opportunities

Versus the strongest peer competitors. If forced to choose among the "semiconductor equipment leaders," KLA's advantage is being closer to the yield and complexity dividend, with a business quality often more pure than its larger and more diversified peers; the drawback is that its current valuation premium is also more aggressive. For new incremental capital, KLA today does not offer value clearly better than "waiting for a better KLA price" or "buying cheaper names elsewhere in the industry at a lower starting yield."

Versus the S&P 500. Historically, KLA's total return has been very strong. In the five-year total-return chart shown in the 2025 10-K, from June 2020 to June 2025, a $100 investment in KLA grew to about $487.89, above the S&P 500's $215.89 and the PHLX Semiconductor Index's $295.18 over the same period. But the company also explicitly cautions that this is only historical performance and does not predict the future. My judgment is: from today's starting point, KLA is not clearly better than buying the index.

Versus the risk-free yield. KLAC's current starting earnings yield and FCF yield are both below the 10-year Treasury yield. For a relatively conservative long-term investor, this means: you are now trading higher risk for a lower starting yield. This trade only works if you are confident KLA can compound at a fairly high rate over the long term without having to compress its valuation too much in the future.

My answer. If my portfolio could only hold 5 assets, the KLA business qualifies for the candidate list, but at today's price it does not qualify to occupy my incremental capital.

Investment Checklist

The "pass/fail" verdicts in this checklist are my opinion; the basis is found in the earlier evidence on business model, financial quality, shareholder returns, customer concentration, export controls, and valuation.

Final Investment Conclusion

Final Rating

Watch

One-Sentence Investment Thesis

KLA is an exceptionally high-quality, long-term compounding business in semiconductor process control, but buying at the current price of roughly 52x PE and roughly 60x free cash flow lacks the margin of safety that value investing requires.

Core Bull Case

• KLA occupies the critical layer of semiconductor process control, and advanced nodes, HBM, advanced packaging, and the expansion of AI infrastructure all raise the necessity of its tools.

• The services business is large and carries some subscription characteristics, with over 75% of FY24 services revenue coming from recurring contracts.

• Cash flow quality is excellent, with LTM operating cash flow of about $4.40B and free cash flow of about $4.01B.

• Capital allocation is excellent over the long run, targeting a long-term return of 85%+ of FCF, with 17 consecutive years of annual dividend increases.

• The balance sheet is sound, with low net leverage, strong interest coverage, and maintained investment-grade ratings.

Core Bear Case

• The current valuation is too high: PE of about 52x, FCF yield of about 1.7%, with a clear lack of margin of safety.

• The industry remains fundamentally cyclical, and customer capital expenditure can swing widely.

• Customer and geographic concentration are high, and the influence of China and a few large customers cannot be ignored.

• Low tax rates in the past were partly supported by incentives and could rise in the future.

• Non-core businesses are not perfect, with the PCB/Display-related segments showing impairments and exits over the past two years.

Key Assumptions

• KLA can maintain its leadership in process control without persistent share loss.

• The services business can keep growing steadily as the installed base expands.

• Demand from AI/HBM/advanced packaging is not a one-time pulse but a long-term, step-like rise.

• Future tax-rate increases and export restrictions will not severely impair the company's long-term profitability.

• The market will ultimately award a high-quality business a reasonable premium, but will not sustain forever the extreme premium it carries today.

Fair Buy Price

$700-$900 per share. The basis is a combination of the conservative Owner Earnings discount value, the current FCF/Owner Earnings starting yield, and the reasonable long-term premium one can grant a high-quality equipment leader. This range still does not count as "deeply cheap," but it at least begins to enter the range "worth seriously studying a purchase."

Target Holding Period

More than 10 years. The premise is buying at a reasonable or even somewhat undervalued price, not chasing at a sentiment peak.

Expected Annualized Return

Based on the current price rather than the ideal entry point, my rough judgment is:

• Conservative scenario: -5% to -1%

• Neutral scenario: 0% to 4%

• Optimistic scenario: 5% to 8%

This is not because I am bearish on KLA's business, but because I believe today's purchase price has already pulled forward too much future return.

Maximum Loss Risk

If the next 2-4 years bring "a cyclical downturn + China restrictions + valuation regression," a drawdown of 50%-65% for KLAC from the current price is not unimaginable; layer on structural share loss, and the permanent loss of capital could be larger still. For value investors, the biggest risk is not short-term volatility, but buying a cyclical stock at an extremely high valuation.

Tracking Metrics

Going forward, I will keep tracking these metrics:

• Semiconductor Process Control segment revenue and margin

• Services revenue growth and the share of services revenue

• Changes in large-customer concentration

• China revenue share and changes in export licensing

• Whether gross margin can stay in the high 50s to low 60s range over the long term

• The degree of alignment between operating cash flow and net income

• LTM free cash flow and its coverage of buybacks/dividends

• Changes in share count and discipline on buyback price

• Tax-rate changes, especially the impact of Pillar Two / Singapore top-up tax

• Whether advanced packaging, HBM, and AI-related demand continue to materialize

Signals That Trigger Reassessment

• Verifiable, persistent erosion of share in key products

• Deteriorating service renewal quality, or service growth clearly below installed-base growth

• Operating cash flow beginning to lag profit significantly

• Management continuing mechanical, large-scale buybacks during periods of extremely high valuation

• China exposure and export controls causing a permanent contraction of the profit pool

• A marked rise in tax rates that compresses medium- and long-term cash flow quality

• Weak businesses like PCB/Component again showing large value destruction

Open Questions and Limitations

This report has two most important open questions. First, a complete set of same-day, like-for-like comparable data for peers' PE, EV/EBITDA, and P/FCF is not available from publicly accessible sources, so the relative valuation section is more a "directional conclusion" than a perfect quantitative cross-comparison. Second, maintenance capital expenditure is not a figure the company explicitly discloses, so Owner Earnings necessarily includes an estimated component; I have deliberately adopted a more conservative method, preferring to underestimate rather than overestimate.

Final Recommendation

KLA is an excellent company worth tracking over the long term, but today is not a price worth bidding for impulsively. If you are a long-term business owner, the most important thing to do is not to convince yourself that "a great company being a bit expensive is fine," but to acknowledge: even the best company can sometimes be bought too expensively. For balanced, conservative-leaning investors, my recommendation is very restrained: put KLA on a high-priority watch list and wait for a more reasonable price, rather than chasing excellence at the current valuation.

This report is based on public information and does not constitute investment advice. Markets carry risk; invest with caution.