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    Can MKS (MKSI) Stay Cheap As Its Cash Flow Story Changes?

    Simply Wall St·10/23/2026 06:31:12
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    MKS Instruments has been on a volatile ride, and the question now is how well the current share price lines up with the cash it is expected to generate over time. After a strong multi-year run followed by a sharp pullback, investors are increasingly asking whether the recent valuation still fits the company’s cash flow profile.

    • Over the past 3 years, MKS has delivered a share price gain of 194.5%, which puts a lot of weight on whether its future cash flows can carry that kind of value.
    • The agreement to sell the Ophir Optics unit to TTM Technologies for about US$650 million may shift MKS’s cash flow mix toward its semiconductor and electronics packaging operations, which can affect how reliable and repeatable those cash streams look.
    • If you'd rather focus on earnings, this one's for you. See what MKS's 30.2x P/E says about the price.

    The issue now is whether MKS stock at around US$196 reflects an intrinsic value that is supported by the cash flows implied by its Discounted Cash Flow (DCF) estimate.

    If you are weighing whether MKS’ cash flows justify a US$196 share price, it can help to compare this story with other businesses in similar situations using the 29 high quality undervalued stocks

    Is MKS a Bargain on Cash Flow?

    The Discounted Cash Flow (DCF) approach here focuses on the cash MKS Instruments can generate for shareholders over time. Latest twelve month free cash flow sits at about $487 million, and the model then leans on a recovering cash profile that lifts projected annual free cash flows into the $900 million to $1.1b range by the late 2020s.

    This path implies that the stream of future cash the business could produce supports an estimated intrinsic value meaningfully above the current $196.11 share price. The planned $650 million sale of Ophir Optics to TTM Technologies matters for that story, because concentrating on semiconductor and electronics packaging operations may make those projected cash flows more focused, even if less diversified. That gap between what the DCF suggests and where the stock trades is where valuation minded investors are likely to spend most of their time. Find out what MKS could be worth using our Discounted Cash Flow (DCF) estimate.

    The MKS Narrative: What Would Justify Today's Price?

    Simply Wall St Narratives for MKS give you the missing link between that DCF conclusion and the real world that MKS' management has to operate in. They explain which paths for growth, margins and earnings would need to occur for the stock to end up meaningfully above or below today's quote. Where a single ratio or model gives one number, Narratives unpack the future that number rests on so you can watch how it actually unfolds over time on the Community page.

    One of the top community narratives on MKS: 52% undervalued

    "The company’s push toward a larger base of recurring chemistry and service revenue, with high chemistry gross margins and service income supported by fabs running near full utilization…"

    Discover why this Narrative puts MKS at 52% undervalued.

    MKS valuation is only half the story

    Price and cash flows tell you what MKS Instruments might be worth, but the people steering the business and how they are rewarded can heavily influence where it actually goes next. See who runs MKS and how they are paid.