MKS Inc (MKSI) Fair Value & Analysis

Technology · US · Market cap $21.9B

A solid business, but screening 73% overvalued on our models.

What matters now

• The price sits above even our optimistic bull case ($109.19). The favourable scenario is already priced in.
• The model range is unusually wide ($33.82 to $109.19). The outcome hinges heavily on assumptions, so read the point estimate with caution.
• Solid but not exceptional quality (54/100) and above fair value, neither a clear bargain nor a standout compounder.

Price vs Fair Value (5 years)

White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Jul 18, 2026.

How to read this chart

60‑month range $58.32 – $444.80 · fair‑value band $33.82 – $109.19 · the $291.31 price screens above the $77.46 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). Dashed = 300-day average. As of Jul 18, 2026.

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Analysis

MKS Inc (MKSI) currently trades at $291.31, while our model-based Fair Value estimate is $77.46, implying the stock looks roughly 73.4% overvalued today. We read business quality at 54/100 (solid quality), in the Technology sector. Bear case: priced above our estimate, the market already discounts strong expectations. Bull case: above-average quality can justify a premium, the entry price still matters most (evidence: high).

Over the trailing twelve months, MKS Inc generated revenue of $4.1B at a net margin of 8.0%. Revenue grew 15.2% year over year. It earns a return on equity of 12.7%. Net debt stands at $4.0B. Fundamentals as of Jul 18, 2026

Our scenario range runs from $33.82 (bear case) to $109.19 (bull case); at $291.31, the current price sits above that range. Bear and bull are the same models run on conservative and optimistic assumptions (margins, growth, valuation multiples), so a plausible valuation range, not a price target. The last reported earnings sit well below what analysts expect (earnings in transition, for example after write-downs or an earnings dip); whether the stock is cheap or expensive hinges on the expected recovery actually arriving. Read the fair value with that caveat. The share trades about 15% below its 52-week high and 231% above its 52-week low, currently above its 200-day average. For context, the median of 10 Technology peers we cover trades at -45% fair-value upside, at -73%, MKSI screens richer than that median.

Fair Value models

Each model estimates fair value its own way; the Fair Value above is the evidence-weighted blend. Evidence (0–100) measures how completely this model’s inputs are available: well-fed models carry more weight in the blend. The spread across models is intentional, each one stresses a different value driver; dividend models, for instance, come out structurally low when payout is small.

Widest divergence: DCF Models ($88.93) versus Dividend Discount ($14.06). Highest evidence: Growth DCF (80).

Key figures & financial health

Quality Score breakdown

About the company

MKS Inc. provides foundational technology solutions to semiconductor manufacturing, electronics and packaging, and specialty industrial applications in the United States, China, South Korea, Japan, Taiwan, Singapore, and internationally.

Full company description

MKS Inc. provides foundational technology solutions to semiconductor manufacturing, electronics and packaging, and specialty industrial applications in the United States, China, South Korea, Japan, Taiwan, Singapore, and internationally. The company operates through Vacuum Solutions Division (VSD), Photonics Solutions Division (PSD), and Material Solutions Division (MSD) segments. Its VSD segment provides foundational technology solutions, including pressure measurement and control, flow measurement and control, gas and vapor delivery, gas composition analysis, electronic control technology, reactive gas generation and delivery, power generation and delivery, and fiber optic temperature and position sensing. The PSD segment offers range of solutions, which include lasers, photonics, optics, precision motion control, and vibration control. Its MSD segment develops, process, and manufactures technologies comprising advanced surface modification, electroless and electrolytic plating, and surface finishing for chemistry, equipment, and services markets, as well as high-technology applications. In addition, the company sells its products and services through direct sales, network of independent distributors, and sales representatives, as well as websites, including product catalogs. MKS Inc. was formerly known as MKS Instruments, Inc. and changed its name to MKS Inc. in May 2025. The company was incorporated in 1961 and is based in Andover, Massachusetts.

Company description, as reported by the company or data provider.

Revenue & earnings trend

FY2021 – FY2025 · reported fiscal years

MKS Inc reported revenue of $3.9B in FY2025 versus $3.0B in FY2021, a compound +7.4%/yr. Reported net income was $295M in FY2025, compounding −14.5%/yr from FY2021.

MKSI screens 73% overvalued. Compare with Keysight Technologies, Inc →

Peer Group

Scientific & Technical Instruments · 162 stocks

How this stock ranks against its industry: the green marker is this stock, the band is the typical 25–75% peer range, and the tick is the median.

Valuation Multiples vs Scientific & Technical Instruments median · lower = cheaper

Snowflake

Five quick dimensions, each 0 to 100: VALUE (fair-value potential), FUTURE (revenue growth), PAST (return on equity), HEALTH (low debt), DIVIDEND (yield). Green = this stock, grey = typical sector peer.

VALUE 0: the price sits above our fair-value range.

Insider activity: 40/100

Values & ESG

Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.

ESG scores are not available for this stock yet. Values and ESG data are contextual and can differ between providers.

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Frequently asked questions

How we calculate Fair Value

Each company is valued through a stack of independent intrinsic-value models (DCF variants, residual-income, multiples and more), blended into one family-balanced consensus and weighted by how much trustworthy data backs it. A separate quality layer scores the fundamentals. Every input is real reported data, nothing guessed.