Second quarter earnings put Littelfuse stock in focus

Littelfuse (LFUS) is back in the spotlight after its second quarter report on July 29, 2026. The release combined higher sales, increased net income and updated guidance, alongside a raised quarterly dividend.

The company reported second quarter sales of US$738.78 million compared with US$613.41 million a year earlier. Net income was US$89.41 million compared with US$57.34 million, with diluted earnings per share from continuing operations at US$3.49 compared with US$2.30.

For the first six months of 2026, Littelfuse recorded sales of US$1,395.75 million compared with US$1,167.72 million for the same period in the prior year. Net income for the period was US$164.55 million compared with US$100.91 million, with diluted earnings per share from continuing operations of US$6.44 compared with US$4.05.

Littelfuse shares have moved sharply over the past year, with a 30 day share price return of 13.57% and a year to date share price return of 74.92%. The 1 year total shareholder return is 87.49%, which suggests momentum has been building around the stock following the earnings, guidance, dividend and completed buyback program updates.

If Littelfuse’s recent move has you thinking about where else capital might find strong trends in electrification and grid upgrades, it could be worth reviewing 36 power grid technology and infrastructure stocks

Littelfuse now trades at a discount to both internal fair value estimates and published analyst targets after a sharp share price move. Is this simply the market staying cautious, or is it underpricing the recent earnings and guidance reset?

Most Popular Narrative: 3.8% Undervalued

The most followed valuation narrative currently places Littelfuse fair value at $477.50, slightly above the last close of $459.24. This frames the recent move as a modest discount rather than a stretched price.

The rapid buildout of renewable energy infrastructure, grid storage, and sustainable grid ecosystems is resulting in double-digit sales growth and a robust opportunity pipeline for Littelfuse, positioning the company to benefit from continued secular tailwinds and expanding its addressable market, which should positively impact both revenues and margins.

It is useful to examine what kind of revenue path and margin profile would need to align to support that fair value. The narrative leans on a specific growth rate, a higher profitability target and a rich future earnings multiple that are all tightly linked. The full breakdown shows exactly how those pieces fit together and what would need to happen in the business for the $477.50 figure to hold.

Result: Fair Value of $477.50 (UNDERVALUED)

However, the Littelfuse narrative also leans on cyclical automotive and industrial demand, and any prolonged weakness in power semiconductors could quickly challenge these fair value assumptions.

Another View on Littelfuse Valuation

The SWS DCF model puts Littelfuse fair value at US$560.26, compared with the current share price of US$459.24. That 18% gap is an undervalued signal that is stronger than the 3.8% discount in the popular narrative. Which set of assumptions feels more realistic to you?

Next Steps

With sentiment mixed after Littelfuse's strong headline numbers and differing fair value views, it makes sense to move quickly and look through the details yourself. To see how current risks line up against the potential rewards, take a closer look at the 2 key rewards and 1 important warning sign

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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.