Onto Innovation Inc. (ONTO) P/E Ratio History
ExpensiveTrading at 102.1x vs 5Y avg 45.7x · 95th percentile · Material premium to history · Data 1996–2026
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P/E Ratio Analysis
As of September 23, 2026, Onto Innovation Inc. (ONTO) trades at a price-to-earnings ratio of 102.1x, with a stock price of $283.81 and trailing twelve-month earnings per share of $2.67.
The current P/E is 123% above its 5-year average of 45.7x. Over the past five years, ONTO's P/E has ranged from a low of 15.2x to a high of 142.3x, placing the current valuation at the 95th percentile of its historical range.
Compared to the Technology sector median P/E of 29.9x, ONTO trades at a 241% premium to its sector peers. The sector includes 365 companies with P/E ratios ranging from 0.0x to 199.0x.
The PEG ratio of 2.95 (P/E divided by -32% EPS growth) suggests the stock may be expensive relative to its earnings growth. Peter Lynch popularized the rule that a PEG below 1.0 indicates an attractive entry point.
Relative to the broader market, ONTO commands a significant premium over the S&P 500 median P/E of 25.5x. Investors should consider the company's growth prospects, competitive position, and earnings quality when evaluating whether the current valuation is justified.
For a comprehensive intrinsic value estimate using discounted cash flow analysis, see our ONTO DCF Valuation Calculator →
Note: P/E ratio is just one valuation metric. It does not account for balance sheet strength, cash flow quality, or growth sustainability. Always conduct comprehensive due diligence before making investment decisions.
ONTO Cross-Benchmark Valuation
How does the current P/E compare to sector peers and the broader market?
ONTO P/E vs Peers
Semiconductor Test, Metrology and Inspection Equipment peers sorted by market cap
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $5B | 9999.0 | - | +100%Best | |
| $10B | 182.6 | - | -22% | |
| $5B | 55.3 | 1.56 | -10% | |
| $7B | 145.5 | 10.39 | -57% | |
| $246B | 51.5 | 2.31 | +21% | |
| $375B | 54.6 | 3.18 | +1% | |
| $389B | 54.0 | 3.28 | +39% | |
| $12B | 46.5Lowest | 1.26Best | +38% | |
| $18B | 59.6 | - | +56% |
Lower P/E can signal a discount or weaker growth expectations; PEG adds growth context.
ONTO Historical P/E Data (1996–2026)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Period End | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2026 Q2 | - | $378.45 | $2.66 | 142.3x | +241% |
| FY2026 Q1 | - | $205.07 | $2.14 | 95.8x | +130% |
| FY2025 Q4 | Jan 03 2026 | $165.87 | $2.77 | 59.9x | +44% |
| FY2025 Q3 | Sep 27 2025 | $127.58 | $3.54 | 36.0x | -14% |
| FY2025 Q2 | Jun 28 2025 | $98.88 | $4.04 | 24.5x | -41% |
| FY2025 Q1 | Mar 29 2025 | $122.07 | $4.42 | 27.6x | -34% |
| FY2024 Q4 | Dec 28 2024 | $170.66 | $4.06 | 42.0x | +1% |
| FY2024 Q3 | Sep 28 2024 | $215.37 | $3.69 | 58.4x | +40% |
| FY2024 Q2 | Jun 29 2024 | $219.56 | $3.35 | 65.5x | +57% |
| FY2024 Q1 | Mar 30 2024 | $181.08 | $2.81 | 64.4x | +54% |
| FY2023 Q4 | Dec 31 2023 | $152.90 | $2.46 | 62.2x | +49% |
| FY2023 Q3 | Sep 30 2023 | $127.52 | $3.19 | 40.0x | -4% |
| FY2023 Q2 | Jul 01 2023 | $116.47 | $3.51 | 33.2x | -20% |
| FY2023 Q1 | Apr 01 2023 | $87.88 | $4.01 | 21.9x | -47% |
| FY2022 Q4 | Dec 31 2022 | $68.09 | $4.49 | 15.2x | -64% |
| FY2022 Q3 | Oct 01 2022 | $64.05 | $4.09 | 15.7x | -62% |
| FY2022 Q2 | Jul 02 2022 | $62.34 | $3.77 | 16.5x | -60% |
| FY2022 Q1 | Apr 02 2022 | $84.84 | $3.45 | 24.6x | -41% |
| FY2021 Q4 | Dec 31 2021 | $101.23 | $2.87 | 35.3x | -15% |
| FY2021 Q3 | Sep 25 2021 | $76.35 | $2.33 | 32.8x | -21% |
| FY2021 Q2 | Jun 26 2021 | $72.12 | $1.76 | 41.0x | -2% |
| FY2021 Q1 | Mar 27 2021 | $63.04 | $1.20 | 52.5x | +26% |
| FY2020 Q4 | - | $47.55 | $0.62 | 76.4x | +83% |
| FY2019 Q4 | - | $36.54 | $0.14 | 261.0x | +526% |
| FY2019 Q3 | Sep 28 2019 | $32.38 | $1.04 | 31.1x | -25% |
| FY2019 Q2 | Jun 29 2019 | $34.71 | $1.00 | 34.7x | -17% |
| FY2019 Q1 | Mar 30 2019 | $30.88 | $1.23 | 25.1x | -40% |
| FY2018 Q4 | Dec 31 2018 | $27.33 | $1.40 | 19.5x | -53% |
| FY2018 Q3 | Sep 29 2018 | $37.52 | $1.11 | 33.7x | -19% |
| FY2018 Q2 | Jun 30 2018 | $35.41 | $1.43 | 24.7x | -41% |
| FY2018 Q1 | Mar 31 2018 | $26.90 | $1.27 | 21.1x | -49% |
| FY2017 Q4 | Dec 31 2017 | $24.92 | $1.02 | 24.3x | -42% |
| FY2017 Q3 | Sep 30 2017 | $28.80 | $1.29 | 22.3x | -46% |
| FY2017 Q2 | Jul 01 2017 | $25.29 | $1.05 | 24.1x | -42% |
| FY2017 Q1 | Apr 01 2017 | $30.46 | $1.00 | 30.5x | -27% |
| FY2016 Q4 | Dec 31 2016 | $25.06 | $1.22 | 20.5x | -51% |
| FY2016 Q3 | Sep 24 2016 | $22.29 | $1.07 | 20.8x | -50% |
| FY2016 Q2 | Jun 25 2016 | $20.20 | $0.99 | 20.4x | -51% |
| FY2016 Q1 | Mar 26 2016 | $14.13 | $0.94 | 15.0x | -64% |
| FY2015 Q4 | - | $15.14 | $0.56 | 27.0x | -35% |
| FY2015 Q3 | Sep 26 2015 | $12.33 | $0.51 | 24.2x | -42% |
| FY2015 Q2 | Jun 27 2015 | $16.65 | $0.26 | 64.0x | +53% |
| FY2014 Q1 | Mar 29 2014 | $17.91 | $0.07 | 263.0x | +530% |
| FY2013 Q4 | - | $19.05 | $0.10 | 190.5x | +357% |
| FY2013 Q3 | Sep 28 2013 | $16.05 | $0.92 | 17.4x | -58% |
| FY2013 Q2 | Jun 29 2013 | $14.67 | $1.11 | 13.2x | -68% |
| FY2013 Q1 | Mar 30 2013 | $14.43 | $1.28 | 11.3x | -73% |
| FY2012 Q4 | Dec 31 2012 | $14.42 | $1.33 | 10.8x | -74% |
| FY2012 Q3 | Sep 29 2012 | $13.81 | $0.69 | 20.0x | -52% |
| FY2012 Q2 | Jun 30 2012 | $15.36 | $0.69 | 22.3x | -47% |
| FY2012 Q1 | Mar 31 2012 | $18.51 | $0.77 | 24.0x | -42% |
| FY2011 Q4 | Dec 31 2011 | $18.42 | $0.97 | 19.0x | -54% |
| FY2011 Q3 | Oct 01 2011 | $14.50 | $1.85 | 7.8x | -81% |
| FY2011 Q2 | Jul 02 2011 | $20.01 | $2.00 | 10.0x | -76% |
| FY2011 Q1 | Apr 02 2011 | $18.01 | $1.99 | 9.1x | -78% |
| FY2010 Q4 | Dec 31 2010 | $12.83 | $1.82 | 7.1x | -83% |
| FY2010 Q3 | Oct 02 2010 | $15.00 | $0.50 | 30.2x | -28% |
| FY2008 Q1 | Mar 29 2008 | $6.66 | $0.17 | 39.8x | -5% |
| FY2007 Q4 | Dec 31 2007 | $9.86 | $0.41 | 24.0x | -43% |
| FY2007 Q3 | Sep 29 2007 | $8.97 | $0.73 | 12.3x | -71% |
| FY2007 Q2 | Jun 30 2007 | $6.86 | $0.96 | 7.1x | -83% |
| FY2007 Q1 | Mar 31 2007 | $6.70 | $1.05 | 6.4x | -85% |
| FY2006 Q4 | Dec 31 2006 | $7.91 | $0.34 | 23.3x | -44% |
| FY2006 Q3 | Sep 30 2006 | $9.25 | $0.06 | 165.2x | +296% |
| FY2005 Q4 | Dec 31 2005 | $11.00 | $0.30 | 37.2x | -11% |
| FY2005 Q3 | Oct 01 2005 | $11.70 | $0.44 | 26.6x | -36% |
| FY2005 Q2 | Jul 02 2005 | $12.49 | $0.50 | 25.0x | -40% |
| FY2005 Q1 | Apr 02 2005 | $12.00 | $0.48 | 25.0x | -40% |
| FY2004 Q4 | Dec 31 2004 | $16.12 | $0.44 | 36.6x | -12% |
| FY2004 Q3 | Oct 02 2004 | $11.97 | $0.34 | 34.9x | -16% |
| FY2004 Q2 | Jul 03 2004 | $11.07 | $0.24 | 45.6x | +9% |
| FY2004 Q1 | Apr 03 2004 | $17.42 | $0.17 | 100.9x | +142% |
| FY2003 Q4 | Dec 31 2003 | $14.71 | $0.12 | 119.9x | +187% |
| FY2003 Q3 | - | $12.12 | $0.10 | 118.6x | +184% |
| FY2002 Q2 | Jun 30 2002 | $15.88 | $0.17 | 93.0x | +123% |
| FY2002 Q1 | Mar 31 2002 | $18.44 | $0.38 | 48.4x | +16% |
| FY2001 Q4 | Dec 31 2001 | $19.40 | $0.73 | 26.5x | -36% |
| FY2001 Q3 | Sep 30 2001 | $17.71 | $1.15 | 15.4x | -63% |
| FY2001 Q2 | Jun 30 2001 | $27.49 | $1.45 | 19.0x | -55% |
| FY2001 Q1 | Mar 31 2001 | $15.75 | $1.74 | 9.1x | -78% |
| FY2000 Q4 | Dec 31 2000 | $13.81 | $1.54 | 9.0x | -79% |
| FY2000 Q3 | Sep 30 2000 | $53.44 | $1.30 | 41.1x | -1% |
| FY2000 Q2 | Jun 30 2000 | $41.19 | $1.01 | 40.8x | -2% |
| FY2000 Q1 | Mar 31 2000 | $48.75 | $0.52 | 93.8x | +125% |
| FY1999 Q4 | Dec 31 1999 | $20.13 | $0.26 | 77.4x | +86% |
| FY1999 Q1 | Mar 31 1999 | $5.63 | $0.05 | 102.8x | +146% |
| FY1998 Q4 | - | $7.81 | $0.20 | 38.4x | -8% |
| FY1998 Q3 | Sep 30 1998 | $7.00 | $0.46 | 15.2x | -64% |
| FY1998 Q2 | - | $9.19 | $0.59 | 15.6x | -63% |
| FY1998 Q1 | - | $9.75 | $0.58 | 16.8x | -60% |
| FY1997 Q4 | Dec 31 1997 | $8.19 | $0.66 | 12.4x | -70% |
| FY1997 Q3 | - | $12.50 | $0.62 | 20.2x | -52% |
| FY1997 Q2 | Jun 30 1997 | $7.00 | $0.57 | 12.3x | -71% |
| FY1997 Q1 | Mar 31 1997 | $6.38 | $0.52 | 12.3x | -71% |
| FY1996 Q4 | - | $4.75 | $0.47 | 10.2x | -76% |
| FY1996 Q3 | Sep 30 1996 | $4.88 | $0.63 | 7.8x | -81% |
| FY1996 Q2 | Jun 30 1996 | $6.25 | $0.61 | 10.3x | -75% |
| FY1996 Q1 | Mar 31 1996 | $5.25 | $0.57 | 9.3x | -78% |
Average P/E for displayed period: 41.7x
ONTO Chart Terminal
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Peer Comparison
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ONTO — Frequently Asked Questions
Quick answers to the most common questions about buying ONTO stock.
What is ONTO's P/E ratio?
Onto Innovation Inc. (ONTO) trailing twelve-month P/E ratio is 102.1x, based on TTM diluted EPS of $2.67. The 5-year average P/E is 45.7x and the historical range spans 15.2x to 142.3x.
Is ONTO stock overvalued or undervalued?
ONTO trades at 102.1x P/E, above its 5-year average of 45.7x. The 95th percentile ranking within the 15.2x–142.3x historical range indicates a premium to historical valuation.
Is ONTO stock expensive?
Yes, ONTO is expensive relative to its own history. The current P/E of 102.1x is above the 5-year average of 45.7x and also above the Technology sector median of 29.9x. The stock sits at the 95th percentile of its 5-year valuation range.
What is ONTO's historical P/E range?
Over the past 5 years, ONTO's P/E ratio has ranged from 15.2x to 142.3x, with a median of 36.0x and an average of 45.7x. The current P/E of 102.1x places the stock at the 95th percentile of this range. Full historical data spans 1996–2026.
How does ONTO's P/E compare to the S&P 500?
ONTO trades at 102.1x P/E versus the S&P 500 median of 25.5x. The 300% premium to the market typically reflects higher expected earnings growth or quality.
How does ONTO's valuation compare to Technology peers?
Onto Innovation Inc. P/E of 102.1x compares to the Technology sector median of 29.9x. The premium reflects expected growth above peers or stronger fundamentals. See the peer comparison table on this page for ticker-by-ticker P/E and PEG.
What is ONTO's PEG ratio?
ONTO PEG ratio is 2.95, based on a P/E of 102.1x and EPS growth of -31.5%. A PEG above 2.0 indicates a premium valuation relative to earnings growth — typically considered expensive.
What is ONTO's earnings yield?
ONTO earnings yield is 0.98%, the inverse of its 102.1x P/E ratio. Earnings yield represents the percentage of each dollar invested that the company earns. It can be compared directly to bond yields to assess relative attractiveness of stocks versus fixed income.