FormFactor (FORM) is back in the spotlight after reporting second quarter results that were significantly higher than a year earlier, issuing upbeat third quarter guidance, and seeing analysts lift earnings estimates alongside a favorable rating.

FormFactor's recent earnings release, guidance update, and expanded partnership with Keystone Microtech have coincided with sharp share price swings, including a 37.14% 7 day share price return and a 93.34% year to date share price return. The 1 year total shareholder return is very large, suggesting strong momentum despite some shorter term pullbacks.

If FormFactor has caught your attention, this is also a good moment to look across the wider chip testing and AI hardware ecosystem and check out 56 AI infrastructure stocks

After a 93.34% gain this year and a very large 1-year total return, FormFactor now trades at a very different price than it did just months ago. Is it worth paying more today, or is it better to wait for a calmer entry point as valuation is examined next?

Most Popular Narrative: 17.4% Undervalued

FormFactor's most followed narrative pegs fair value at about $138.63 per share, compared with the latest close of $114.44. This implies a meaningful valuation gap based on that framework.

Strategic investments in new manufacturing capacity (Farmers Branch, Texas) and vertical integration via organic substrate partnerships aim to expand production, lower long-term operating costs, and leverage financial/regulatory incentives. This is expected to enable margin expansion and improved profitability as AI and advanced packaging demand intensifies. (Impacts: Gross margins, net margins)

Want to see what sits behind that margin story for FormFactor? The narrative focuses on faster revenue growth, sharply higher profitability, and a different earnings multiple profile than today.

Result: Fair Value of $138.63 (UNDERVALUED)

However, there are clear pressure points for the FormFactor narrative, including customer concentration in DRAM and HBM, as well as ongoing margin headwinds from tariffs and higher operating costs.

Another View on FormFactor's Valuation Using Earnings Multiples

The DCF and narrative work suggest FormFactor is trading below fair value. The P/E picture is less forgiving. At 77.4x, the stock sits above the US Semiconductor industry on 52.9x and above the fair ratio of 50.2x, even though it is below peer average at 85.8x. That gap hints at valuation risk if sentiment cools.

To see how this richer P/E profile stacks up against the underlying numbers, check the full breakdown in See what the numbers say about this price — find out in our valuation breakdown.

Next Steps

With mixed signals on valuation, risks and momentum around FormFactor, this is the point where your own homework matters most. Act now by weighing the 3 key rewards and 2 important warning signs.

Looking for more investment ideas beyond FormFactor?

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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.