Axcelis Technologies, Inc. (ACLS) P/E Ratio History
Historical price-to-earnings valuation from 2000 to 2026
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ACLS Valuation Context
How does the current P/E compare to historical and market benchmarks?
P/E Ratio Analysis
As of May 8, 2026, Axcelis Technologies, Inc. (ACLS) trades at a price-to-earnings ratio of 41.8x, with a stock price of $158.66 and trailing twelve-month earnings per share of $3.26.
The current P/E is 119% above its 5-year average of 19.1x. Over the past five years, ACLS's P/E has ranged from a low of 9.1x to a high of 29.5x, placing the current valuation at the 100th percentile of its historical range.
Compared to the Technology sector median P/E of 27.7x, ACLS trades at a 51% premium to its sector peers. The sector includes 359 companies with P/E ratios ranging from 0.0x to 184.2x.
The PEG ratio of 1.98 (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 commands a significant premium over the S&P 500 median P/E of 25.1x. 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 P/E vs Peers
P/E ratio compared to closely matched public peers
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $14B | 98.6 | 2.85 | -32% | |
| $20B | 68.8 | - | +56%Best | |
| $7B | 79.8 | 2.28 | +50% | |
| $326B | 47.4Lowest | 2.76 | +1% | |
| $358B | 69.0 | 3.08 | +43% | |
| $232B | 58.1 | 1.84Best | +50% | |
| $15B | 87.7 | 2.43 | +34% |
Peers sorted by market capitalization. P/E below peers may indicate undervaluation or lower growth expectations. Consider PEG ratio for growth-adjusted comparison.
ACLS Historical P/E Data (2000–2026)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Date | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2026 Q1 | $93.08 | $3.21 | 29.0x | +45% | |
| FY2025 Q4 | Wed Dec 31 2025 00:00:00 GM | $80.34 | $3.79 | 21.2x | +6% |
| FY2025 Q3 | $97.64 | $4.23 | 23.1x | +15% | |
| FY2025 Q2 | Mon Jun 30 2025 00:00:00 GM | $69.69 | $4.89 | 14.3x | -29% |
| FY2025 Q1 | Mon Mar 31 2025 00:00:00 GM | $49.67 | $5.46 | 9.1x | -55% |
| FY2024 Q4 | $69.87 | $6.15 | 11.4x | -43% | |
| FY2024 Q3 | Mon Sep 30 2024 00:00:00 GM | $104.85 | $6.76 | 15.5x | -22% |
| FY2024 Q2 | Sun Jun 30 2024 00:00:00 GM | $142.19 | $7.26 | 19.6x | -2% |
| FY2024 Q1 | Sun Mar 31 2024 00:00:00 GM | $111.52 | $7.57 | 14.7x | -26% |
| FY2023 Q4 | Sun Dec 31 2023 00:00:00 GM | $129.69 | $7.43 | 17.5x | -13% |
| FY2023 Q3 | Sat Sep 30 2023 00:00:00 GM | $163.05 | $6.99 | 23.3x | +17% |
| FY2023 Q2 | Fri Jun 30 2023 00:00:00 GM | $183.33 | $6.21 | 29.5x | +48% |
Average P/E for displayed period: 20.0x
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Start ComparisonACLS — Frequently Asked Questions
Quick answers to the most common questions about buying ACLS stock.
Is ACLS stock overvalued or undervalued?
ACLS trades at 41.8x P/E, above its 5-year average of 19.1x. The 100th percentile ranking indicates a premium to historical valuation.
How does ACLS's valuation compare to peers?
Axcelis Technologies, Inc. P/E of 41.8x compares to sector median of 27.7x. The premium reflects expected growth above peers.
What is ACLS's PEG ratio?
ACLS PEG ratio is 1.98. Between 1-2 suggests valuation aligns with growth. Historical P/E data spans 2000-2026.