TacticScaleWhat MKS Does & How It Makes Money (MKSI)
Updated October 2026 · reflects MKS's latest reported financials
Maker of core instruments, lasers and chemistry for chipmaking and electronics. MKS sells instruments, subsystems, lasers, optics, and plating chemistry and equipment, along with related services, to semiconductor, electronics and industrial manufacturers.
How MKS makes money
MKS sells instruments, subsystems, lasers, optics, and plating chemistry and equipment, along with related services, to semiconductor, electronics and industrial manufacturers. It sells through direct sales, independent distributors, sales representatives and online catalogs.
What MKS does
MKS Inc., founded in 1961 and based in Andover, Massachusetts, supplies foundational technology to semiconductor manufacturing, electronics and packaging, and specialty industrial customers. It was known as MKS Instruments until it changed its name in May 2025. It sells in the United States, China, South Korea, Japan, Taiwan, Singapore and other markets. The company has three segments. Vacuum Solutions covers pressure, flow and gas control, gas analysis, reactive gas generation, power delivery and fiber-optic sensing. Photonics Solutions makes lasers, optics, precision motion control and vibration control. Materials Solutions provides surface modification, electroless and electrolytic plating, and surface finishing chemistry, equipment and services. Because so much of its business serves chipmakers, results tend to follow the semiconductor and electronics manufacturing cycle.
Products & services
- Pressure and flow measurement and control
- Gas and vapor delivery and gas analysis systems
- RF and power generation and delivery
- Lasers, optics and precision motion control
- Vibration control systems
- Electroless and electrolytic plating chemistry and equipment
What is MKS worth?
On an owner-earnings DCF, MKS's most-likely value is about $129 versus a recent price near $264 (51% above fair value). But TacticScale only calls a stock undervalued when the price sits below its conservative no-growth floor (~$59) with a margin of safety — so the honest verdict here is “Fairly priced — no edge.” Fair value earns its keep only at the extremes, not in the wide middle.
Price sits in the normal range — fair value isn't actionable here; it earns its keep only when price drops below the no-growth floor, or runs to roughly double the optimistic case.
⚠ High leverage — net debt is 8.2× annual cash flow. Net debt is subtracted from this fair value, but refinancing at higher rates, principal timing, and share dilution aren’t modeled — the equity can be worth far less if cash flow weakens.
Analysis, not advice. Fair value is a margin-of-safety estimate from a deterministic owner-earnings DCF, not a price target or recommendation. See the full breakdown →
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