Semtech (SMTC) is back on investor radar after increased AI led data center networking demand and recent portfolio changes aimed at optical modules, which have shifted expectations for the company’s future earnings profile.

The recent AI related news around Semtech comes on top of sharp share price momentum. The 90 day share price return is 124.16% and the year to date share price return is 132.17%, while the 1 year total shareholder return of 325.55% signals that sentiment has already shifted materially.

If you are weighing Semtech against other data and connectivity plays, it may be worth seeing what is happening across AI infrastructure companies using the 49 AI infrastructure stocks.

With Semtech now at $174.73 and the short term analyst price target at $205.25, along with improving revenue and earnings estimates against a still loss-making bottom line, is this surge mispricing risk, or is the market simply catching up to expected future growth?

Most Popular Narrative: 14.7% Undervalued

At $174.73, the most followed narrative on Semtech points to a fair value of $204.83, framing today’s AI driven optimism against longer term earnings assumptions.

Accelerating demand from hyperscale data centers and AI infrastructure is driving robust, multi-year growth across Semtech's high-margin data center business, supported by design wins in advanced optical (FiberEdge), low-power (LPO), and active copper interconnects (CopperEdge/ACC). As data rates move from 400G to 800G and 1.6T, Semtech stands to capture significant revenue and margin expansion from new content per deployment.

Want to see what sits underneath that AI and data center story? The narrative leans heavily on rapid revenue expansion, rising margins, and a much higher earnings base. The mix of growth assumptions, profitability shift, and future valuation multiple is doing the heavy lifting behind that $204.83 figure.

Result: Fair Value of $204.83 (UNDERVALUED)

However, Semtech’s narrative also rests on successful integration of past deals and stable demand from China, where any setback or weaker bookings could quickly challenge these assumptions.

Another View: SWS DCF Model Flags Overvaluation

While the Semtech narrative points to a fair value of $204.83 and frames the stock as 14.7% undervalued, the SWS DCF model tells a different story with an estimate of $52.55. At a share price of $174.73, that implies Semtech is trading well above this cash flow based view. Which lens do you rely on more for long term decisions?

Simply Wall St performs a discounted cash flow (DCF) on every stock in the world every day (check out Semtech for example). We show the entire calculation in full. You can track the result in your watchlist or portfolio and be alerted when this changes, or use our stock screener to discover 44 high quality undervalued stocks. If you save a screener we even alert you when new companies match - so you never miss a potential opportunity.

Next Steps

With Semtech framed as both potentially undervalued on narrative assumptions and expensive on a DCF basis, sentiment is clearly split. Consider promptly reviewing the data points that matter most to you and weighing both the upside and downside using the 1 key reward and 1 important warning sign.

Looking for more Semtech sized investment ideas?

If Semtech has sharpened your focus on where capital could work harder, do not stop here. Broaden your watchlist now using focused stock ideas from the Simply Wall Street Screener.

• Zero in on quality at a discount by checking companies highlighted in the 44 high quality undervalued stocks.
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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.