Recent analyst commentary around Onto Innovation (ONTO) has focused on strong demand for its Dragonfly G5 AI inspection platform and advanced packaging tools, drawing attention to where the stock currently trades.

Recent price momentum has been strong, with Onto Innovation’s share price return of 22.88% over the past 30 days and 57.38% over 90 days, alongside a 1 year total shareholder return of 232.07%. This points to rising enthusiasm around its AI focused tools and recent funding move.

If Onto Innovation’s run has you thinking about what else is benefiting from AI hardware demand, it could be a good moment to scan 49 AI infrastructure stocks

With Onto Innovation trading close to recent highs and some valuation tools flagging the stock as significantly overvalued, the key question is whether recent AI optimism has overshot or if the market is simply catching up to future growth potential.

Most Popular Narrative: 15.2% Undervalued

According to the most followed narrative, Onto Innovation's fair value of $380 sits above the last close at $322.24, which puts recent AI excitement in a different light.

Onto Innovation appears to be positioned directly at this bottleneck.

The company’s Dragonfly platform recently passed TSMC’s New Tool Selection Committee qualification process for 2.5D advanced packaging applications, a significant milestone that could materially expand Onto’s role in the semiconductor ecosystem over the next several years.

Want to understand why this narrative argues Onto Innovation should trade nearer its fair value? The thesis focuses on advanced packaging exposure, ambitious earnings potential, and valuation multiples more often associated with the largest process control players. Curious which financial levers are assumed to do the heavy lifting in that $380 figure? The full narrative breaks down the specific growth, margin, and capital intensity assumptions that underpin this number.

Result: Fair Value of $380 (UNDERVALUED)

However, Onto Innovation’s narrative could be challenged if competitors win key advanced packaging slots, or if semiconductor capital spending on AI infrastructure slows meaningfully.

Another View: Onto Innovation Through a Sales Multiple Lens

The popular Onto Innovation narrative leans on earnings forecasts and peer P/E ratios, but the current P/S of 15.6x tells a very different story. That is higher than the US semiconductor industry at 8.8x, the peer average at 10.2x, and the fair ratio estimate of 11.2x, which suggests valuation risk if sentiment cools.

With the stock already pricing in a richer sales multiple than both sector and peer benchmarks, investors may want to ask whether future execution can keep the market from drifting back toward that 11.2x fair ratio or below.

Next Steps

With Onto Innovation attracting both enthusiasm and caution, it makes sense to look at the same numbers yourself and decide how you feel about the balance of risks and rewards. To pressure test your own view quickly, start by weighing the 1 key reward and 2 important warning signs

Looking for more investment ideas beyond Onto Innovation?

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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.