Axcelis Technologies, Inc. (ACLS) P/E Ratio History
ExpensiveTrading at 30.5x vs 5Y avg 21.1x · 95th percentile · Material premium to history · Data 2000–2026
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P/E Ratio Analysis
As of September 23, 2026, Axcelis Technologies, Inc. (ACLS) trades at a price-to-earnings ratio of 30.5x, with a stock price of $115.74 and trailing twelve-month earnings per share of $2.98.
The current P/E is 44% above its 5-year average of 21.1x. Over the past five years, ACLS's P/E has ranged from a low of 9.1x to a high of 63.6x, placing the current valuation at the 95th percentile of its historical range.
Compared to the Technology sector median P/E of 29.9x, ACLS is roughly in line with its sector peers. The sector includes 365 companies with P/E ratios ranging from 0.0x to 199.0x.
The PEG ratio of 1.44 (P/E divided by -38% EPS growth) suggests a fair valuation 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, ACLS trades roughly in line with 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 ACLS 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.
ACLS Cross-Benchmark Valuation
How does the current P/E compare to sector peers and the broader market?
ACLS P/E vs Peers
Semiconductor Manufacturing Equipment peers sorted by market cap
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $14B | 102.1 | 2.95 | -32% | |
| $18B | 59.6 | - | +56%Best | |
| $7B | 145.5 | 10.39 | -57% | |
| $375B | 54.6 | 3.18 | +1% | |
| $389B | 54.0 | 3.28 | +39% | |
| $246B | 51.5 | 2.31 | +21% | |
| $12B | 46.5Lowest | 1.26Best | +38% |
Lower P/E can signal a discount or weaker growth expectations; PEG adds growth context.
ACLS Historical P/E Data (2000–2026)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Period End | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2026 Q2 | - | $189.45 | $2.98 | 63.6x | +207% |
| FY2026 Q1 | - | $93.08 | $3.21 | 29.0x | +40% |
| FY2025 Q4 | Dec 31 2025 | $80.34 | $3.79 | 21.2x | +2% |
| FY2025 Q3 | - | $97.64 | $4.23 | 23.1x | +12% |
| FY2025 Q2 | Jun 30 2025 | $69.69 | $4.89 | 14.3x | -31% |
| FY2025 Q1 | Mar 31 2025 | $49.67 | $5.46 | 9.1x | -56% |
| FY2024 Q4 | - | $69.87 | $6.15 | 11.4x | -45% |
| FY2024 Q3 | Sep 30 2024 | $104.85 | $6.76 | 15.5x | -25% |
| FY2024 Q2 | Jun 30 2024 | $142.19 | $7.26 | 19.6x | -5% |
| FY2024 Q1 | Mar 31 2024 | $111.52 | $7.57 | 14.7x | -29% |
| FY2023 Q4 | Dec 31 2023 | $129.69 | $7.43 | 17.5x | -16% |
| FY2023 Q3 | Sep 30 2023 | $163.05 | $6.99 | 23.3x | +13% |
| FY2023 Q2 | Jun 30 2023 | $183.33 | $6.21 | 29.5x | +43% |
| FY2023 Q1 | Mar 31 2023 | $133.25 | $5.67 | 23.5x | +14% |
| FY2022 Q4 | Dec 31 2022 | $79.36 | $5.46 | 14.5x | -30% |
| FY2022 Q3 | Sep 30 2022 | $60.56 | $4.80 | 12.6x | -39% |
| FY2022 Q2 | - | $54.84 | $4.40 | 12.5x | -40% |
| FY2022 Q1 | - | $75.53 | $3.63 | 20.8x | +1% |
| FY2021 Q4 | Dec 31 2021 | $74.56 | $2.89 | 25.8x | +25% |
| FY2021 Q3 | - | $47.03 | $2.27 | 20.7x | +0% |
| FY2021 Q2 | Jun 30 2021 | $40.42 | $1.78 | 22.7x | +10% |
| FY2021 Q1 | Mar 31 2021 | $41.09 | $1.62 | 25.4x | +23% |
| FY2020 Q4 | - | $29.12 | $1.47 | 19.8x | -4% |
| FY2020 Q3 | Sep 30 2020 | $22.00 | $1.33 | 16.5x | -20% |
| FY2020 Q2 | - | $27.85 | $1.03 | 27.0x | +31% |
| FY2020 Q1 | - | $18.31 | $0.66 | 27.7x | +34% |
| FY2019 Q4 | - | $24.09 | $0.51 | 47.2x | +128% |
| FY2019 Q3 | Sep 30 2019 | $17.09 | $0.47 | 36.4x | +76% |
| FY2019 Q2 | Jun 30 2019 | $15.05 | $0.71 | 21.2x | +2% |
| FY2019 Q1 | Mar 31 2019 | $20.12 | $1.12 | 18.0x | -13% |
| FY2018 Q4 | Dec 31 2018 | $17.80 | $1.35 | 13.2x | -36% |
| FY2018 Q3 | Sep 30 2018 | $19.65 | $3.78 | 5.2x | -75% |
| FY2018 Q2 | Jun 30 2018 | $19.80 | $3.87 | 5.1x | -75% |
| FY2018 Q1 | Mar 31 2018 | $24.60 | $3.86 | 6.4x | -69% |
| FY2017 Q4 | Dec 31 2017 | $28.70 | $3.74 | 7.7x | -63% |
| FY2017 Q3 | Sep 30 2017 | $27.35 | $1.19 | 23.0x | +11% |
| FY2017 Q2 | Jun 30 2017 | $20.95 | $0.91 | 23.0x | +11% |
| FY2017 Q1 | Mar 31 2017 | $18.80 | $0.59 | 32.1x | +55% |
| FY2016 Q4 | Dec 31 2016 | $14.55 | $0.38 | 38.8x | +87% |
| FY2016 Q3 | Sep 30 2016 | $13.28 | $0.29 | 46.5x | +125% |
| FY2016 Q2 | - | $10.76 | $0.42 | 25.9x | +25% |
| FY2016 Q1 | - | $11.20 | $0.52 | 21.5x | +4% |
| FY2015 Q4 | - | $10.36 | $0.52 | 19.9x | -4% |
| FY2015 Q3 | Sep 30 2015 | $10.68 | $0.49 | 22.0x | +6% |
| FY2015 Q2 | - | $11.84 | $0.12 | 102.4x | +395% |
| FY2011 Q4 | Dec 31 2011 | $5.32 | $0.20 | 26.5x | +28% |
| FY2011 Q3 | Sep 30 2011 | $4.80 | $0.44 | 10.9x | -47% |
| FY2011 Q2 | - | $6.56 | $0.16 | 41.0x | +98% |
| FY2007 Q3 | Sep 30 2007 | $20.44 | $0.61 | 33.5x | +62% |
| FY2007 Q2 | Jun 30 2007 | $25.96 | $1.41 | 18.4x | -11% |
| FY2007 Q1 | Mar 31 2007 | $7.64 | $1.69 | 4.5x | -78% |
| FY2006 Q4 | Dec 31 2006 | $5.83 | $1.61 | 3.6x | -82% |
| FY2006 Q3 | Sep 30 2006 | $7.04 | $0.95 | 7.4x | -64% |
| FY2006 Q2 | Jun 30 2006 | $5.90 | $0.26 | 22.9x | +11% |
| FY2005 Q3 | Sep 30 2005 | $5.22 | $0.19 | 27.5x | +33% |
| FY2005 Q2 | - | $6.86 | $1.16 | 5.9x | -71% |
| FY2005 Q1 | - | $7.30 | $2.44 | 3.0x | -86% |
| FY2004 Q4 | Dec 31 2004 | $8.13 | $2.88 | 2.8x | -86% |
| FY2004 Q3 | - | $8.28 | $2.73 | 3.0x | -85% |
| FY2004 Q2 | Jun 30 2004 | $12.44 | $0.68 | 18.3x | -12% |
| FY2001 Q3 | Sep 30 2001 | $9.45 | $1.17 | 8.1x | -61% |
| FY2001 Q2 | Jun 30 2001 | $14.80 | $3.03 | 4.9x | -76% |
| FY2001 Q1 | Mar 31 2001 | $11.56 | $4.20 | 2.8x | -87% |
| FY2000 Q4 | Dec 31 2000 | $8.88 | $4.48 | 2.0x | -90% |
Average P/E for displayed period: 20.7x
ACLS Chart Terminal
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Intrinsic Valuation
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Historical Returns
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Peer Comparison
Compare growth, multiples, and margins vs sector.
ACLS — Frequently Asked Questions
Quick answers to the most common questions about buying ACLS stock.
What is ACLS's P/E ratio?
Axcelis Technologies, Inc. (ACLS) trailing twelve-month P/E ratio is 30.5x, based on TTM diluted EPS of $2.98. The 5-year average P/E is 21.1x and the historical range spans 9.1x to 63.6x.
Is ACLS stock overvalued or undervalued?
ACLS trades at 30.5x P/E, above its 5-year average of 21.1x. The 95th percentile ranking within the 9.1x–63.6x historical range indicates a premium to historical valuation.
Is ACLS stock expensive?
Yes, ACLS is expensive relative to its own history. The current P/E of 30.5x is above the 5-year average of 21.1x 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 ACLS's historical P/E range?
Over the past 5 years, ACLS's P/E ratio has ranged from 9.1x to 63.6x, with a median of 20.7x and an average of 21.1x. The current P/E of 30.5x places the stock at the 95th percentile of this range. Full historical data spans 2000–2026.
How does ACLS's P/E compare to the S&P 500?
ACLS trades at 30.5x P/E versus the S&P 500 median of 25.5x. The 20% premium to the market typically reflects higher expected earnings growth or quality.
How does ACLS's valuation compare to Technology peers?
Axcelis Technologies, Inc. P/E of 30.5x 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 ACLS's PEG ratio?
ACLS PEG ratio is 1.44, based on a P/E of 30.5x and EPS growth of -38.2%. A PEG between 1 and 2 suggests valuation aligns with growth expectations — typically considered fair.
What is ACLS's earnings yield?
ACLS earnings yield is 3.28%, the inverse of its 30.5x 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.