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Mks (MKSI, Semiconductor Materials & Equipment) Stock Valuation & Fair Value Trading above fair value

Mks (MKSI, Semiconductor Materials & Equipment) trades at a blended P/E of 21.7, about 26% above its historical normal valuation, with a forward growth estimate of 27.6% and a PEG of 0.79. 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 2026-09-18 close of $252.08 corresponds to about $200 a share. This is a valuation reference, not a price target.

DATA AS OF 2026-09-21
Blended P/E
21.7
Normal P/E
17.3
PEG
0.79
Fwd growth
27.6%
Div yield
0.4%
RSI (14)
47.2
Neutral

Valuation flags

Verdict history

tickerseer's rating moved from significantly overvalued (2026-07-31) to trading above fair value (2026-09-21).

Blended P/E and rating by weekBlended P/E moved from 28.9 to 21.7 between 2026-07-31 and 2026-09-21, against a normal P/E of 17.3, with 1 rating change over 18 recorded weeks.2026-07-31: P/E 28.9, Significantly overvalued (recalculated)2026-08-03: P/E 29.3, Significantly overvalued2026-08-07: P/E 29.3, Significantly overvalued (recalculated)2026-08-10: P/E 27.7, Significantly overvalued2026-08-14: P/E 27.7, Significantly overvalued (recalculated)2026-08-17: P/E 28.0, Significantly overvalued2026-08-21: P/E 28.0, Significantly overvalued (recalculated)2026-08-24: P/E 24.9, Significantly overvalued2026-08-27: P/E 24.9, Significantly overvalued (recalculated)2026-08-28: P/E 24.9, Significantly overvalued (recalculated)2026-08-30: P/E 24.9, Significantly overvalued (recalculated)2026-08-31: P/E 22.6, Trading above fair value2026-09-05: P/E 22.6, Trading above fair value (recalculated)2026-09-07: P/E 22.8, Trading above fair value2026-09-12: P/E 22.8, Trading above fair value (recalculated)2026-09-14: P/E 23.2, Trading above fair value2026-09-19: P/E 23.2, Trading above fair value (recalculated)2026-09-21: P/E 21.7, Trading above fair value20.025.0Jul 31Aug 13Aug 26Sep 8Sep 21Normal P/E 17.3
Attractively valuedFairly valuedAbove fair valueLarger dot: a stronger reading

Not every point was recorded live. Points marked recalculated apply today's valuation rules to the metrics tickerseer archived that week.

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

WeekBlended P/EPremium to normal P/ERating
2026-07-31P/E 28.9+67%Significantly overvalued
2026-08-03P/E 29.3+70%Significantly overvalued
2026-08-31P/E 22.6+31%Trading above fair value
2026-09-21P/E 21.7+26%Trading above fair value ← now

Frequently asked questions

Is Mks stock overvalued?

At a blended P/E of 21.7 versus its historical normal P/E of 17.3, Mks trades about 26% above its typical valuation, with a PEG of 0.79 on 27.6% forward growth. tickerseer currently rates it trading above fair value.

What is Mks's fair value and PEG?

Mks trades at a blended P/E of 21.7 against a historical normal P/E of 17.3, a PEG of 0.79, and a forward growth estimate of 27.6%. Priced at its historical normal P/E of 17.3 on the same blended earnings, the 2026-09-18 close of $252.08 corresponds to about $200 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 trading above fair value (2026-09-21).

Industry: Semiconductor Materials & Equipment. Create a free account to see the full analysis: the SeerAI score, its five quality sub-scores, valuation history, and the AI research note. Options setups and metric history are part of the paid plans.

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