Bull case
ONTO would need investors to value it at roughly 107x earnings — about 64x more generous than today's 43x forward P/E. That requires meaningful multiple expansion on top of continued earnings growth.
Wall Street verdict, consensus price target, and analyst rating breakdown — everything needed to frame the risk/reward at today's price.
Three scenarios for where ONTO stock could go
ONTO would need investors to value it at roughly 107x earnings — about 64x more generous than today's 43x forward P/E. That requires meaningful multiple expansion on top of continued earnings growth.
At 62x on FY1 earnings, the base case reflects a reasonable but not stretched valuation. It prices in continued growth without assuming an exceptional setup.
If investor confidence fades or macro conditions deteriorate, a 43x multiple contraction could push ONTO down roughly 99% from where it trades now.
Not financial advice. Model confidence reflects internal scenario assumptions, not a guarantee of returns. Past performance does not predict future results.

Onto Innovation is a semiconductor equipment company that makes process control tools for defect inspection, optical metrology, and lithography systems used in chip manufacturing. It generates revenue primarily from selling these capital equipment systems — along with software licenses and spare parts — to semiconductor manufacturers and advanced packaging facilities. The company's competitive advantage lies in its integrated portfolio of inspection, metrology, and lithography technologies that help chipmakers improve yields and process control across multiple manufacturing steps.
Quarterly beat-or-miss track record against analyst estimates, plus forward revenue and EPS outlook for the next two fiscal years.
| Quarter | EPS (Actual / Est) | EPS Surprise | Revenue (Actual / Est) | Rev Surprise |
|---|---|---|---|---|
| Q2 2025 | $1.51/$1.47 | +2.7% | $267M/$269M | -0.7% |
| Q3 2025 | $1.25/$1.27 | -1.6% | $254M/$222M | +14.5% |
| Q4 2025 | $0.92/$0.89 | +2.9% | $218M/$220M | -0.9% |
| Q1 2026 | $1.26/$1.28 | -1.6% | $267M/$267M | -0.2% |
ONTO beat EPS estimates in 2 of 4 tracked quarters. Mixed delivery makes the upcoming report a key data point for re-rating.
Product and geographic revenue mix from the latest annual disclosure, with year-over-year growth by segment.
Latest annual revenue by segment or product family
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Latest annual revenue by reported region
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Current multiples compared to the S&P 500, the company's sector, and its own five-year average.
Fair value est. $297 — implies +1.4% from today's price.
| Metric | ONTO | S&P 500 | Technology | 5Y Avg ONTO |
|---|---|---|---|---|
| Forward PE | 43.1x | 19.1x+126% | 22.1x+95% | — |
| Trailing PE | 109.7x | 25.1x+337% | 26.7x+310% | 42.9x+156% |
| PEG Ratio | 3.17x | 1.72x+85% | 1.52x+108% | — |
| EV/EBITDA | 76.8x | 15.2x+404% | 17.5x+339% | 29.3x+162% |
| Price/FCF | 50.6x | 21.1x+140% | 19.5x+159% | 35.4x+43% |
| Price/Sales | 15.1x | 3.1x+383% | 2.4x+518% | 7.1x+111% |
| Dividend Yield | — | 1.87% | 1.16% | — |
Forward P/E and PEG reflect analyst consensus estimates. Historical averages use trailing ratios where forward data is unavailable.S&P 500 and sector benchmarks both use trailing median P/E — similar readings indicate the broader index and sector are priced alike.
Open valuation toolONTO generates $239M in free cash flow at a 23.2% margin.
Revenue, margins, and cash generation
ROIC, leverage, and debt serviceability
How capital is returned to owners
All figures from the trailing twelve months. ROIC uses invested capital (equity + net debt).
Open full ratios pageKey factors that could pressure the stock price, compress the multiple, or weigh on future results.
AI analysis · updated April 29, 2026
Onto Innovation's growth is heavily reliant on the successful development and market acceptance of its microelectronic device inspection and metrology equipment. Failure to keep pace with technological advancements or customer expectations could significantly hinder product development and market share.
A substantial portion of Onto Innovation's revenue is generated from a limited number of key customers. This concentration creates a risk of significant cash flow fluctuations if these customers alter their purchasing behaviors.
Geopolitical tensions, particularly with China, pose a serious threat to Onto Innovation's international competitiveness. Tariffs and export regulations could further complicate operations and impact profit margins.
The stock price of Onto Innovation is subject to high volatility, with current valuation metrics suggesting potential overvaluation. Analysts have noted that while the stock has shown positive momentum, earnings growth has not kept pace, indicating a risk skewed to the downside.
Variations in sales cycles can lead to unpredictable operating results, which may negatively impact stock performance. Additionally, the integration of acquired companies poses risks of losing key personnel and disrupting ongoing operations.
Onto Innovation faces intense competition from larger companies with more resources. The high switching costs in the semiconductor industry make it challenging to attract new clients, potentially limiting growth opportunities.
These are risk mechanisms, not predictions. The key question is which would force a cut to earnings estimates or a lower multiple than the market currently prices in.
Structural drivers behind the upside case and why the stock could outperform over the next 12 months.
AI analysis · updated April 29, 2026
Onto Innovation is well-positioned to benefit from the increasing demand for high-bandwidth memory (HBM), AI-driven chip design, and advanced packaging technologies like 2.5D and 3D architectures. The company's Dragonfly platforms and focus on these areas are seen as key supports for future earnings and margins.
The acquisition of key product lines from Semilab International is expected to further enhance Onto Innovation's offerings and contribute to growth. This strategic move is anticipated to bolster the company's competitive edge in the semiconductor market.
A significant multi-year volume purchase agreement with an HBM customer, extending through 2027, provides strong revenue visibility. This agreement is crucial for ensuring stable cash flow and long-term growth.
The company has demonstrated consistent revenue growth, with full-year 2025 revenue reaching $1.005 billion, and projections for continued growth in 2026. Q4 2025 revenue was a record $267 million, highlighting the company's strong performance.
The company's backlog has nearly doubled, providing strong visibility into 2026 performance. Additionally, earnings are projected to grow significantly in the coming years, with EPS expected to increase substantially.
Analysts overwhelmingly recommend Onto Innovation as a 'Strong Buy,' with a high average rating score. This positive sentiment reflects confidence in the company's strategic direction and market position.
A real bull case compounds — each driver matters most when it strengthens margins, supports capital returns, and keeps the company above the market's minimum growth bar simultaneously.
52-week range context and price returns across multiple time horizons. Dividend contribution is shown separately in the Capital Return section.
Range context matters because valuation compression and earnings misses rarely hit from the same starting point. A stock already far below its high can still fall, but it is no longer carrying the same embedded optimism as one pressing a fresh peak.
Valuation, growth, and margin comparison against the closest publicly traded peers for this company.
| Company | Mkt Cap | Fwd PE | Rev Grw | Margin | Rating | Upside |
|---|---|---|---|---|---|---|
ONT ONTO Onto Innovation Inc. | $15.2B | 43.1x | +20.6% | 10.3% | Buy | +1.1% |
KLI KLIC Kulicke and Soffa Industries, Inc. | $4.8B | 34.8x | -3.9% | -9.4% | Buy | -31.6% |
COH COHU Cohu, Inc. | $2.3B | 91.0x | +0.8% | -11.5% | Buy | +2.7% |
FOR FORM FormFactor, Inc. | $11.3B | 66.6x | +4.7% | 8.1% | Hold | -14.9% |
ACM ACMR ACM Research, Inc. | $3.5B | 26.5x | +25.9% | 10.4% | Buy | -24.2% |
CAM CAMT Camtek Ltd. | $7.2B | 56.7x | +25.4% | 28.4% | Buy | -16.0% |
This peer comparison reflects companies with similar business models, product lines, or market positioning, supplemented by industry grouping when direct matches are limited.
ONTO returns 0.5% annually — null% through dividends and 0.5% through buybacks.
Yield, cadence, and growth quality
How much per-share support comes from repurchases
Common questions answered from live analyst data and company financials.
Onto Innovation Inc. (ONTO) is rated Buy by Wall Street analysts as of 2026. Of 11 analysts covering the stock, 11 rate it Buy or Strong Buy, 0 rate it Hold, and 0 rate it Sell or Strong Sell. The consensus 12-month price target is $308, implying +1.1% from the current price of $305. The bear case scenario is $2 and the bull case is $756.
The Wall Street consensus price target for ONTO is $308 based on 11 analyst estimates. The high-end target is $350 (+14.8% from today), and the low-end target is $260 (-14.8%). The base case model target is $439.
ONTO trades at 43.1x times forward earnings. The stock trades at a notable premium to the broad market, which is typical for businesses with strong free cash flow and above-average growth expectations. Based on current multiples versus the peer group, the relative model signals fairly valued. Whether the stock is over or undervalued ultimately depends on whether consensus earnings estimates are achievable.
The primary risks for ONTO in 2026 are: (1) Technological and Innovation Risks — Onto Innovation's growth is heavily reliant on the successful development and market acceptance of its microelectronic device inspection and metrology equipment. (2) Customer Concentration — A substantial portion of Onto Innovation's revenue is generated from a limited number of key customers. (3) Geopolitical and Supply Chain Risks — Geopolitical tensions, particularly with China, pose a serious threat to Onto Innovation's international competitiveness. Each factor has the potential to pressure earnings or compress the stock's valuation multiple.
Analyst consensus estimates ONTO will report consensus revenue of $1.2B (+20.6% year-over-year) and EPS of $4.77 (+33.9% year-over-year) for the upcoming fiscal year. The following year, analysts project $1.4B in revenue.
A confirmed upcoming earnings date for ONTO is not yet available. Check the Earnings section above for the most recent quarterly report dates and forward estimates.
Onto Innovation Inc. (ONTO) generated $239M in free cash flow over the trailing twelve months — a free cash flow margin of 23.2%. ONTO returns capital to shareholders through and share repurchases ($75M TTM).