MKS (MKSI) has wrapped up FY 2025 with Q4 revenue of US$1.0b and basic EPS of US$1.60, alongside trailing twelve month revenue of US$3.9b and EPS of US$4.38 that sit against a 55.3% earnings lift over the past year. The company has seen quarterly revenue move from US$934m in Q4 2024 to US$1.0b in Q4 2025, while basic EPS shifted from US$1.35 to US$1.60 over the same period. Analysts are forecasting 27.9% annual earnings growth and higher net profit margins, keeping investor attention firmly on how durable these margin gains prove to be.

See our full analysis for MKS.

With the headline numbers in place, the next step is to set these results against the most common stories around MKS, so you can see where the data backs up the current narratives and where it starts to push back.

7.5% net margin hints at improving profitability

• On a trailing basis, MKS earned US$295 million on US$3.9b of revenue, which works out to a 7.5% net margin compared with 5.3% a year earlier.
• Consensus narrative points to rising AI and complex semiconductor demand as a key profit driver, and the higher 7.5% margin alongside trailing twelve month EPS of US$4.38 against US$2.82 a year earlier fits that story, although the five year earnings decline of 21.7% per year shows this margin profile is still relatively recent.
  • The 55.3% earnings growth over the past year lines up with that AI and packaging tailwind, while trailing revenue of US$3.9b versus US$3.6b a year earlier suggests earnings are growing faster than the top line, consistent with the focus on higher margin chemistry and services.
  • At the same time, the longer term earnings decline figure reminds you that this uplift has not been a straight line and that the current margin level has not yet been tested across a full cycle.

Revenue growth trails earnings forecasts

• Analysts expect revenue to grow about 9.8% per year while earnings are forecast to grow much faster at roughly 27.9% per year, and over the last year reported earnings already rose 55.3% with net margin at 7.5%.
• Bulls argue that higher margin, recurring chemistry and services revenue can support that faster earnings growth, and the data partly backs that view but also sets a high bar.
  • On the supportive side, trailing twelve month EPS moved from US$2.82 to US$4.38 while revenue increased from US$3.6b to US$3.9b, which is consistent with mix shifting toward higher margin lines rather than just volume.
  • However, the five year trend of earnings declining 21.7% per year shows that the current growth rates are coming off a weaker base, so expecting earnings to keep outpacing revenue by this wide a gap is a strong bullish assumption.

Have a look at how bullish investors frame this acceleration story and where they think it could lead for MKS. 🐂 MKS Bull Case

Premium 57x P/E with debt risk attached

• MKS trades on a trailing P/E of about 57x, above both the peer average of 52.1x and the semiconductor industry at 42.3x, while interest coverage is flagged as weak despite net income of US$295 million over the last twelve months.
• Bears focus on this combination of rich P/E and leverage, and the current numbers give them some solid talking points.
  • The 57x P/E multiple sits well above the DCF fair value of US$161.15 per share, with the current share price at US$250.36, which indicates the market price is higher than that cash flow based estimate.
  • When you set that valuation against the history of earnings declining 21.7% per year over five years and interest payments that are not well covered by earnings, the cautious view that the stock is pricing in a lot of future success without much room for balance sheet hiccups is grounded in the data.

Skeptics think the combination of a 57x P/E and weak interest cover leaves little room for error at today’s price. 🐻 MKS Bear Case

Next Steps

To see how these results tie into long-term growth, risks, and valuation, check out the full range of community narratives for MKS on Simply Wall St. Add the company to your watchlist or portfolio so you'll be alerted when the story evolves.

With mixed views across bulls and bears, it is worth checking the underlying data yourself and not just relying on the loudest narrative. If you want a clearer view of what could go right and what could go wrong, take a closer look at the 2 key rewards and 1 important warning sign.

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MKS combines a rich 57x P/E, weak interest cover, and a history of earnings decline over five years, which leaves limited room for setbacks.

If that mix of valuation pressure and balance sheet strain worries you, take a look at our solid balance sheet and fundamentals stocks screener (43 results) to find companies with sturdier financial footing right now.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.