MKS (MKSI) Stock: Buy, Sell, or Hold?
MKSI - MKS Inc. Common Stock
$267.31
5.47 (2.09%)
▲
5d:
+7.07%
30d:
-12.88%
90d:
-22.59%
BUY
HIGH Confidence
Analysis Updated: Sep 11, 2026 12:00 AM ET
Earnings: Nov 04, 2026
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Interactive Price Chart (1 Month)
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Bottom Line:
✅ BUY SIGNAL: MKSI appears deeply undervalued. Market expects -10.4% annual earnings decline despite 162% recent earnings growth. Contrarian opportunity at discount to historical valuation.
✅ BUY SIGNAL: MKSI appears deeply undervalued. Market expects -10.4% annual earnings decline despite 162% recent earnings growth. Contrarian opportunity at discount to historical valuation.
Long-Term Wealth Forecast (2031)
Based on Analyst Consensus Growth & Historical Valuation
0% (Stagnation)
50% (Hyper Growth)
EST. PRICE IN 2031
$723.41
Based on 14.5% avg growth
INTRINSIC VALUE TODAY
$449.18
40.5% Margin of Safety
How this is calculated: We use a Growth Decay Model: starting with analyst consensus growth (adjusted above) and gradually slowing it down to a long-term terminal rate (4%) by Year 5. This provides a more realistic valuation than assuming constant hyper-growth. We then apply a 21.1x Exit PE.
In-depth Analysis How we analyze
Valuation Analysis: MKSI is currently trading at $267.31, which is considered slightly low relative to its 30-day fair value range of $259.53 to $304.54. From a valuation perspective, the stock is trading at a discount (Forward PE: 15.2) compared to its historical average (21.1). Remarkably, the market is currently pricing in an annual earnings decline of 10.4% over the next few years. This pessimistic expectation contrasts with the company's recent 162.0% earnings growth, suggesting potential undervaluation if the company simply maintains stability.
Technical Outlook: Technically, MKSI is showing sideways momentum. The price is approaching resistance at $270.29. A breakout above this level would be a bullish signal, while rejection here could lead to consolidation.
Market Sentiment: MKSI scores 92/100 on our bottoming-setup gauge — the chart has corrected and is stabilizing (RSI reset, momentum turning up), historically a favorable entry zone. Wall Street analysts see significant upside, with an average price target of $417.57 (+56.2%). Combining these factors, the current setup offers a favorable risk/reward ratio for buyers.
Technical Outlook: Technically, MKSI is showing sideways momentum. The price is approaching resistance at $270.29. A breakout above this level would be a bullish signal, while rejection here could lead to consolidation.
Market Sentiment: MKSI scores 92/100 on our bottoming-setup gauge — the chart has corrected and is stabilizing (RSI reset, momentum turning up), historically a favorable entry zone. Wall Street analysts see significant upside, with an average price target of $417.57 (+56.2%). Combining these factors, the current setup offers a favorable risk/reward ratio for buyers.
Quick Decision Summary
Current Position
SLIGHTLY LOW
Historical Trading Range
$259.53 -
$304.54
Company Quality Score
62/100
(BUY)
Volume Confirmation
HIGH
Confidence Score
90.5%
All Signals
- BULLISH: Price oversold vs 30-day range
- BULLISH: Strong technical setup (92/100)
- BULLISH: High volume confirmation
- BULLISH: Trading 56.2% below Wall St target ($417.57)
- BULLISH: Bottoming setup score 92/100 — corrected, stabilizing, and turning up
Trading Range Analysis
30-Day Trading Range
$259.53 -
$304.54
Current vs Trading Range
SLIGHTLY LOW
Support & Resistance Levels
Support Level
$241.51
Resistance Level
$270.29
Current Trend
Sideways
Technical data as of
Sep 11, 2026
Fundamental Context
Forward P/E (Next Year Est.)
15.18
Wall Street Target
$417.57
(+56.2%)
Revenue Growth (YoY)
28.3%
Earnings Growth (YoY)
162.0%
Profit Margin
10.1%
Valuation Discount vs History
-10.4% cheaper
PE vs Historical
15.2 vs 21.1
CHEAP
Market-Implied Price Targets
If current PE multiple persists
Implied Growth (YoY):
-10.4%
(market-implied from PE analysis)
1-Year Target
$240.58
(-10%)
2-Year Target
$216.52
(-19%)
3-Year Target
$194.87
(-27%)
3-Yr Target (if PE normalizes)
(PE: 15→21)
$270.81
(+1%)
3-Year Scenarios
Using analyst projected EPS growth
Bull:
(PE: 20.2, Growth: 34.0%)
$855.34
(+220%)
Base:
(SPY PE: 15.2, Growth: 34.0%)
$643.86
(+141%)
Bear:
(PE: 12.9, Growth: 34.0%)
$547.28
(+105%)
📈
Valuation based on Current Earnings
RECOVERY PLAY: Stock looks expensive now (43x PE), but valuation improves significantly next year (15x PE) as earnings recover.
Trailing PE: 42.71 | Current EPS (TTM): $6.13
Bull Case
$576.05
(+116%)
Analyst growth 100.0%, PE expands to 47.0
Base Case
$523.68
(+96%)
Market implied 100.0%, PE stable at 42.7
Bear Case
$178.05
(-33%)
Severe decline -20.0%, PE contracts to 36.3
These are projections based on PE multiples and EPS growth scenarios, not predictions. Actual results may vary significantly.
💡
Upside Surprise Potential
If earnings stabilize (0% growth), PE could expand from 15.2 to 21.1
Stabilization Target:
$371.48
(+39.0%)
PE Expansion Potential:
+39.0%
Share & Embed Analysis
Last updated: September 11, 2026 9:43 PM ET
Data refreshes hourly during market hours. Next update: 10:43 PM
Data refreshes hourly during market hours. Next update: 10:43 PM
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Technical Signals Check
Is MKSI showing a specific setup today?
Insider Activity (6 Months)
0
Buys
0
Sells
0
Net
NEUTRAL
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