ON Semiconductor (ON) drew investor attention after reporting second quarter 2026 results, with sales of US$1,603.5 million and net income of US$226.8 million compared with the same quarter a year earlier.

Despite the stronger second quarter report, ON Semiconductor’s recent share price performance has cooled, with the stock down 11.86% on a 1 month share price return and 23.99% on a 3 month share price return. However, its 1 year total shareholder return of 70.19% and 5 year total shareholder return of 81.12% point to a much stronger longer term picture.

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ON Semiconductor’s earnings rebound and recent share price pullback leave investors weighing two views. Has the stock already priced in most of the recovery, or is there still meaningful upside ahead, as the valuation section sets out next?

Most Popular Narrative: 29.2% Undervalued

ON Semiconductor’s most followed narrative points to a fair value of $113.52 compared with the last close of $80.40, which implies a sizeable valuation gap based on analysts’ long term assumptions.

The company's strategic investments in silicon carbide (SiC), wide bandgap technologies, and advanced power management solutions for both automotive and AI data centers position it at the forefront of key structural growth markets. As these high-value products ramp, they are expected to enhance margins and drive long-term earnings growth.

Curious what sits behind that aggressive margin path and earnings curve. The narrative leans on ambitious revenue compounding and a richer product mix. Want to see how those pieces add up.

Result: Fair Value of $113.52 (UNDERVALUED)

However, ON Semiconductor’s reliance on cyclical automotive demand, along with its exposure to geopolitical and competitive pressures, could still derail that upbeat margin and earnings path.

Another view on ON Semiconductor’s valuation

While the analyst narrative points to ON Semiconductor trading below a fair value of $113.52, the current P/E of 54.5x tells a cooler story. It is higher than the US Semiconductor industry on 52x and well above a fair ratio of 40x. This points to meaningful valuation risk if expectations disappoint.

Next Steps

The mix of optimism and concern around ON Semiconductor will mean different things to different investors. It is worth reviewing the key details yourself and weighing both sides through the 1 key reward and 2 important warning signs

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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.