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Onto Innovation (ONTO) has come back into focus after management projected more than 30% revenue growth in 2026, tied to demand for its AI linked inspection and advanced packaging platforms.
See our latest analysis for Onto Innovation.
Short term, the stock has cooled off, with the share price down 9.18% over the past month. However, a 19.62% 90 day share price return and a 1 year total shareholder return of 180.88% still reflect notable recent momentum around the AI driven growth story and recent financing moves.
If Onto Innovation’s AI angle has caught your eye, it could be worth seeing what else is moving in this space with our curated list of 47 AI infrastructure stocks
With the stock up strongly over the past year and analysts setting higher price targets, the key question now is whether Onto Innovation is still trading below its potential or whether the market is already pricing in that future growth.
Most Popular Narrative: 32% Undervalued
According to user FundamentalFlow, the most followed narrative puts Onto Innovation’s fair value at $380 per share, compared with the last close at $258.24. This frames a sizeable valuation gap that rests on very specific AI packaging and HBM assumptions.
Onto Innovation is emerging as one of the most strategically important semiconductor equipment companies in the AI supply chain. While much investor attention remains focused on GPU manufacturers and memory suppliers, the next bottleneck increasingly lies in advanced packaging, the complex process of stacking, connecting, and inspecting AI chips and HBM memory at nanometer precision.
Want to see how this bottleneck thesis translates into the $380 fair value? The narrative leans on robust revenue expansion, rising profitability, and a future earnings multiple usually reserved for top tier process control companies.
Result: Fair Value of $380 (UNDERVALUED)
Have a read of the narrative in full and understand what’s behind the forecasts.
However, this thesis still relies heavily on timely Dragonfly ramps and resilient AI related capital spending, and any delay or pullback could quickly challenge that $380 view.
Find out about the key risks to this Onto Innovation narrative.
Another View: Rich Multiples Raise the Bar
The $380 fair value narrative leans on future earnings power, but today the stock is already trading on a P/E of about 120.7x. That is well above the US Semiconductor industry average of 68.7x, its peer average of 77.3x, and even a fair ratio of 58.6x that the market could gravitate toward over time.
In plain terms, the current price already bakes in a lot of future success. This raises the risk that any hiccup in growth or margins could hit the share price harder than expected. How comfortable are you with paying this kind of premium for the AI packaging story?
See what the numbers say about this price — find out in our valuation breakdown.
NYSE:ONTO P/E Ratio as at May 2026 Next Steps
With all this in mind, sentiment on Onto Innovation is clearly mixed. Act while the data is fresh and shape your own view with 2 key rewards 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.
Companies discussed in this article include ONTO.
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