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Mks (MKSI, Chipmaking equipment) Stock Valuation & Fair Value

Mixed on our tests

Mks (MKSI, Chipmaking equipment) trades at a current P/E of 15.7, about 9% below its historical normal valuation, with a forward growth estimate of 27.1% and a PEG of 0.58. Analysts' one-year estimates have been hit 27% of the time. Priced at its historical normal P/E of 17.3 on the same blended earnings, the 2026-11-06 close of $192.27 corresponds to about $211 a share. This is a valuation reference, not a price target.

How to read these numbers: the PEG ratio and current P/E versus normal P/E.

DATA AS OF 2026-11-07
Current P/E
15.7
Normal P/E
17.3
PEG
0.58
Fwd growth
27.1%
Div yield
0.5%
RSI (14)
37.8
Neutral
Technical context
  • Price $192.27 at the Nov 6 close, 9.0% below the 20-day average ($211.36) and 19.9% below the 50-day ($240.14).
  • RSI (14) at 37.8.
  • 52-week range $137.91 to $444.39: the price is 56.7% below the high and 39.4% above the low.

The Street vs SeerForecast

Wall Street's mean price target for MKSI is $406.93 across 14 analysts, 111.6% above the current price. The average analyst rating is Buy. Our SeerForecast read of the same stock, formed without analyst targets: mixed on our tests. When the two disagree, start your digging there.

Valuation flags

Verdict history

tickerseer's rating moved from significantly overvalued (2026-07-31) to mixed on our tests (2026-11-02). New rating rules took effect in the week of 2026-10-19, and this rating moved across that change, so part of the move may come from the new rules rather than the company.

Current P/E and rating by weekCurrent P/E moved from 28.9 to 16.6 between 2026-07-31 and 2026-10-30, against a normal P/E of 17.3, with 2 rating changes over 14 recorded weeks.2026-07-31: P/E 28.9, Significantly overvalued, recalculated for the week of 2026-07-312026-07-31: P/E 29.3, Significantly overvalued, recorded live 2026-08-032026-08-07: P/E 29.3, Significantly overvalued, recalculated for the week of 2026-08-072026-08-07: P/E 27.7, Significantly overvalued, recorded live 2026-08-102026-08-14: P/E 27.7, Significantly overvalued, recalculated for the week of 2026-08-142026-08-14: P/E 28.0, Significantly overvalued, recorded live 2026-08-172026-08-21: P/E 28.0, Significantly overvalued, recalculated for the week of 2026-08-212026-08-21: P/E 24.9, Significantly overvalued, recorded live 2026-08-242026-08-27: P/E 24.9, Significantly overvalued, recalculated for the week of 2026-08-272026-08-28: P/E 24.9, Significantly overvalued, recalculated for the week of 2026-08-282026-08-28: P/E 24.9, Significantly overvalued, recalculated for the week of 2026-08-302026-08-28: P/E 22.6, Trading above its usual valuation, recorded live 2026-08-312026-09-04: P/E 22.6, Trading above its usual valuation, recalculated for the week of 2026-09-052026-09-04: P/E 22.8, Trading above its usual valuation, recorded live 2026-09-072026-09-11: P/E 22.8, Trading above its usual valuation, recalculated for the week of 2026-09-122026-09-11: P/E 23.2, Trading above its usual valuation, recorded live 2026-09-142026-09-18: P/E 23.2, Trading above its usual valuation, recalculated for the week of 2026-09-192026-09-18: P/E 21.7, Trading above its usual valuation, recorded live 2026-09-212026-09-25: P/E 21.7, Trading above its usual valuation, recalculated for the week of 2026-09-262026-09-25: P/E 22.3, Trading above its usual valuation, recorded live 2026-09-282026-10-02: P/E 22.3, Trading above its usual valuation, recalculated for the week of 2026-10-032026-10-02: P/E 23.6, Trading above its usual valuation, recorded live 2026-10-052026-10-09: P/E 23.6, Trading above its usual valuation, recalculated for the week of 2026-10-102026-10-09: P/E 22.2, Trading above its usual valuation, recorded live 2026-10-122026-10-16: P/E 22.2, Trading above its usual valuation, recalculated for the week of 2026-10-172026-10-16: P/E 17.9, Mixed on our tests, recorded live 2026-10-192026-10-23: P/E 16.2, Mixed on our tests, recorded live 2026-10-262026-10-30: P/E 16.2, Mixed on our tests, recalculated for the week of 2026-10-312026-10-30: P/E 16.6, Mixed on our tests, recorded live 2026-11-0220.025.0Jul 31Aug 23Sep 15Oct 7Oct 30Normal P/E 17.3
Mixed on our testsTrading above its usual valuationSignificantly overvaluedLarger dot: a stronger reading

Not every point was recorded live. Points marked recalculated are worked out from the metrics tickerseer archived that week.

Selected weeks: the first, the latest, every week the rating moved, and the cheapest and dearest.

WeekCurrent P/EPremium to normal P/ERating
2026-07-31P/E 28.9+67%Significantly overvalued (recalculated)
2026-08-03P/E 29.3+70%Significantly overvalued
2026-08-31P/E 22.6+31%Trading above its usual valuation
2026-10-19P/E 17.9+4%Mixed on our tests (across a rating rules change)
2026-10-26P/E 16.2-6%Mixed on our tests
2026-11-02P/E 16.6-4%Mixed on our tests ← now
Show all 29 readings
WeekCurrent P/EPremium to normal P/ERating
2026-07-31P/E 28.9+67%Significantly overvalued (recalculated)
2026-08-03P/E 29.3+70%Significantly overvalued
2026-08-07P/E 29.3+70%Significantly overvalued (recalculated)
2026-08-10P/E 27.7+60%Significantly overvalued
2026-08-14P/E 27.7+60%Significantly overvalued (recalculated)
2026-08-17P/E 28.0+62%Significantly overvalued
2026-08-21P/E 28.0+62%Significantly overvalued (recalculated)
2026-08-24P/E 24.9+44%Significantly overvalued
2026-08-27P/E 24.9+44%Significantly overvalued (recalculated)
2026-08-28P/E 24.9+44%Significantly overvalued (recalculated)
2026-08-30P/E 24.9+44%Significantly overvalued (recalculated)
2026-08-31P/E 22.6+31%Trading above its usual valuation
2026-09-05P/E 22.6+31%Trading above its usual valuation (recalculated)
2026-09-07P/E 22.8+32%Trading above its usual valuation
2026-09-12P/E 22.8+32%Trading above its usual valuation (recalculated)
2026-09-14P/E 23.2+35%Trading above its usual valuation
2026-09-19P/E 23.2+35%Trading above its usual valuation (recalculated)
2026-09-21P/E 21.7+26%Trading above its usual valuation
2026-09-26P/E 21.7+26%Trading above its usual valuation (recalculated)
2026-09-28P/E 22.3+29%Trading above its usual valuation
2026-10-03P/E 22.3+29%Trading above its usual valuation (recalculated)
2026-10-05P/E 23.6+37%Trading above its usual valuation
2026-10-10P/E 23.6+37%Trading above its usual valuation (recalculated)
2026-10-12P/E 22.2+29%Trading above its usual valuation
2026-10-17P/E 22.2+29%Trading above its usual valuation (recalculated)
2026-10-19P/E 17.9+4%Mixed on our tests (across a rating rules change)
2026-10-26P/E 16.2-6%Mixed on our tests
2026-10-31P/E 16.2-6%Mixed on our tests (recalculated)
2026-11-02P/E 16.6-4%Mixed on our tests ← now

Frequently asked questions

Is Mks stock overvalued?

At a current P/E of 15.7 versus its historical normal P/E of 17.3, Mks trades about 9% below its typical valuation, with a PEG of 0.58 on 27.1% forward growth. tickerseer currently rates it mixed on our tests.

What is Mks's fair value and PEG?

Mks trades at a current P/E of 15.7 against a historical normal P/E of 17.3, a PEG of 0.58, and a forward growth estimate of 27.1%. Priced at its historical normal P/E of 17.3 on the same blended earnings, the 2026-11-06 close of $192.27 corresponds to about $211 a share. This is a valuation reference, not a price target.

Has tickerseer's rating of Mks changed?

tickerseer's rating moved from significantly overvalued (2026-07-31) to mixed on our tests (2026-11-02). New rating rules took effect in the week of 2026-10-19, and this rating moved across that change, so part of the move may come from the new rules rather than the company.

What is the analyst price target for Mks?

The mean Wall Street price target for Mks is $406.93 across 14 analysts, 111.6% above the current price. tickerseer's SeerForecast verdict is formed independently of analyst targets.

Industry: Chipmaking equipment. Create a free account to see the full analysis: the SeerAI score, its five quality sub-scores, valuation history, and an AI research note where we have one. Options setups and metric history are part of the paid plans.

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