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Onto Innovation (ONTO) Could Be 41% Undervalued On Its AI Memory Narrative

SK Hynix's warning about a prolonged AI memory shortage has pushed Onto Innovation (ONTO) back into focus, as the chipmaker highlighted the firm's defect prevention and metrology tools on high-bandwidth memory lines.

Onto Innovation's share price has swung sharply this year, with a 1-day share price return of 4.44% and the stock down 22.53% over the past month. However, the 34.85% year to date share price return and 63.17% 1-year total shareholder return suggest momentum has cooled recently rather than disappeared.

Scan other AI infrastructure plays that are riding the same high-bandwidth memory theme as Onto Innovation using our curated list of 54 AI infrastructure stocks .

After a sharp pullback, and with Onto Innovation still trading at a discount to both analyst targets and intrinsic estimates, the real puzzle is where fair value sits inside that spread.

Most Popular Narrative: 41% Undervalued

Set against a last close of $223.68, the most followed narrative on Onto Innovation argues for a fair value of $380. This implies a wide gap between current pricing and that narrative view of worth.

Onto currently trades at a discount to larger semiconductor process-control peers such as KLA Corporation and Applied Materials despite potentially having stronger exposure to advanced AI packaging growth.

Many investors believe the market still views Onto as a cyclical semiconductor equipment company rather than a strategic AI infrastructure provider.

See why 38 investors see Onto Innovation as 41% undervalued .

Result: Fair Value of $380 (UNDERVALUED)

Still, two pressure points could puncture that 41% undervalued story: weaker semiconductor capex or a rival matching Onto Innovation's advanced packaging metrology capabilities.

Find out about the key risks to this Onto Innovation narrative .

Another View On Onto Innovation's Valuation

There is a catch. While the narrative case pegs Onto Innovation around $380, the market is already paying a rich 82.8x P/E. That is almost double the US Semiconductor average of 45.2x and well above the fair ratio of 44.6x. Is that a margin of safety or a margin of risk?

For investors weighing that trade off, our valuation breakdown based on this earnings multiple gap can help frame how much rerating room really exists before expectations run too far ahead of fundamentals. See what the numbers say about this price — find out in our valuation breakdown.

NYSE:ONTO P/E Ratio as at Oct 2026
NYSE:ONTO P/E Ratio as at Oct 2026

Next Steps

Mixed views on whether Onto Innovation's pullback is a risk or a reset. Act quickly, review the full picture, and weigh both 3 key rewards and 3 important warning signs .

Looking for more investment ideas beyond Onto Innovation?

If you stop with Onto Innovation, you only see one angle. Use the screener to surface fresh opportunities, pressure test your ideas, and stay ahead.

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.

Companies discussed in this article include ONTO .

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team@simplywallst.com

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