Tearsheet

Axcelis Technologies (ACLS)


Market Price (6/14/2026): $181.5 | Market Cap: $5.6 BilSector: Information Technology | Industry: Semiconductor Materials & Equipment

Axcelis Technologies (ACLS)


Market Price (6/14/2026): $181.5
Market Cap: $5.6 Bil
Sector: Information Technology
Industry: Semiconductor Materials & Equipment

Investment Highlights Why It Matters Detailed financial logic regarding cash flow yields vs trend-riding momentum.

0

Attractive cash flow generation
CFO/Rev LTMCash Flow from Operations / Revenue (Sales), Last Twelve Months (LTM) is 11%, FCF/Rev LTMFree Cash Flow / Revenue (Sales), Last Twelve Months (LTM) is 10%

Megatrend and thematic drivers
Megatrends include Artificial Intelligence, Electric Vehicles & Autonomous Driving, and 5G & Advanced Connectivity. Themes include AI Chips, Show more.

Trading close to highs
Dist 52W High is 0.0%

Weak multi-year price returns
3Y Excs Rtn is -68%

Expensive valuation multiples
P/CFOPrice/(Cash Flow from Operations). CFO is cash before capital expenditures. is 57x

Stock price has recently run up significantly
6M Rtn6 month market price return is 110%, 12M Rtn12 month market price return is 177%

Weak revenue growth
Rev Chg LTMRevenue Change % Last Twelve Months (LTM) is -12%, Rev Chg 3Y AvgRevenue Change % averaged over trailing 3 years is -3.5%

Valuation getting more expensive
P/S 6M Chg %Price/Sales change over 6 months. Declining P/S indicates valuation has become less expensive. is 121%

Yield minus risk free rate is negative
ERPEquity Risk Premium (ERP) = Total Yield - Risk Free Rate, Reflects the premium above risk free assets offered by the investment. is -2.4%

Key risks
ACLS key risks include [1] over-reliance on a potentially peaking SiC/EV ion implant supercycle, Show more.

0 Attractive cash flow generation
CFO/Rev LTMCash Flow from Operations / Revenue (Sales), Last Twelve Months (LTM) is 11%, FCF/Rev LTMFree Cash Flow / Revenue (Sales), Last Twelve Months (LTM) is 10%
1 Megatrend and thematic drivers
Megatrends include Artificial Intelligence, Electric Vehicles & Autonomous Driving, and 5G & Advanced Connectivity. Themes include AI Chips, Show more.
2 Trading close to highs
Dist 52W High is 0.0%
3 Weak multi-year price returns
3Y Excs Rtn is -68%
4 Expensive valuation multiples
P/CFOPrice/(Cash Flow from Operations). CFO is cash before capital expenditures. is 57x
5 Stock price has recently run up significantly
6M Rtn6 month market price return is 110%, 12M Rtn12 month market price return is 177%
6 Weak revenue growth
Rev Chg LTMRevenue Change % Last Twelve Months (LTM) is -12%, Rev Chg 3Y AvgRevenue Change % averaged over trailing 3 years is -3.5%
7 Valuation getting more expensive
P/S 6M Chg %Price/Sales change over 6 months. Declining P/S indicates valuation has become less expensive. is 121%
8 Yield minus risk free rate is negative
ERPEquity Risk Premium (ERP) = Total Yield - Risk Free Rate, Reflects the premium above risk free assets offered by the investment. is -2.4%
9 Key risks
ACLS key risks include [1] over-reliance on a potentially peaking SiC/EV ion implant supercycle, Show more.

Valuation & Metrics

Price Chart

Why The Stock Moved

Qualitative Assessment

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Updated on 6/12/2026

Axcelis Technologies (ACLS) stock has gained about 120% since 2/28/2026 because of the following key factors:

1. Strong Q1 2026 Financial Performance Driven by Memory and AI Demand.

Axcelis Technologies reported robust fiscal Q1 2026 earnings on May 6-7, 2026, with an actual earnings per share (EPS) of $0.72, exceeding analysts' expectations of $0.68-$0.71. Revenue also surpassed estimates, reaching $198.96 million against a consensus of $195.03 million. The company highlighted a "meaningful acceleration in Memory" and strong sequential growth in demand for DRAM and High Bandwidth Memory (HBM), which are critical components for artificial intelligence (AI) applications. This company-specific outperformance aligned with a broader industry trend where global semiconductor equipment billings rose by 14% year-over-year in Q1 2026, largely driven by continued AI-related investment.

2. Introduction of Advanced Ion Implantation Technology.

Axcelis enhanced its product portfolio by introducing the Purion H6 high-current ion implanter on February 4, 2026. This new system is specifically engineered to meet the stringent demands of next-generation semiconductor devices, including advanced memory, logic, and image sensors, demonstrating the company's innovation in a crucial segment of the semiconductor manufacturing process.

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Stock Movement Drivers

Fundamental Drivers

The 119.7% change in ACLS stock from 2/28/2026 to 6/14/2026 was primarily driven by a 160.3% change in the company's P/E Multiple.
(LTM values as of)22820266142026Change
Stock Price ($)82.61181.50119.7%
Change Contribution By: 
Total Revenues ($ Mil)8398450.8%
Net Income Margin (%)14.3%11.9%-16.7%
P/E Multiple21.255.3160.3%
Shares Outstanding (Mil)31310.6%
Cumulative Contribution119.7%

LTM = Last Twelve Months as of date shown

Market Drivers

2/28/2026 to 6/14/2026
ReturnCorrelation
ACLS118.0% 
Market (SPY)8.4%53.3%
Sector (XLK)33.3%53.3%

Fundamental Drivers

The 119.3% change in ACLS stock from 11/30/2025 to 6/14/2026 was primarily driven by a 190.1% change in the company's P/E Multiple.
(LTM values as of)113020256142026Change
Stock Price ($)82.77181.50119.3%
Change Contribution By: 
Total Revenues ($ Mil)853845-0.9%
Net Income Margin (%)15.9%11.9%-25.1%
P/E Multiple19.155.3190.1%
Shares Outstanding (Mil)31311.8%
Cumulative Contribution119.3%

LTM = Last Twelve Months as of date shown

Market Drivers

11/30/2025 to 6/14/2026
ReturnCorrelation
ACLS117.6% 
Market (SPY)9.2%49.0%
Sector (XLK)29.5%49.1%

Fundamental Drivers

The 222.2% change in ACLS stock from 5/31/2025 to 6/14/2026 was primarily driven by a 441.3% change in the company's P/E Multiple.
(LTM values as of)53120256142026Change
Stock Price ($)56.34181.50222.2%
Change Contribution By: 
Total Revenues ($ Mil)958845-11.8%
Net Income Margin (%)18.6%11.9%-35.8%
P/E Multiple10.255.3441.3%
Shares Outstanding (Mil)32315.0%
Cumulative Contribution222.2%

LTM = Last Twelve Months as of date shown

Market Drivers

5/31/2025 to 6/14/2026
ReturnCorrelation
ACLS219.7% 
Market (SPY)27.3%48.5%
Sector (XLK)61.0%49.1%

Fundamental Drivers

The 15.2% change in ACLS stock from 5/31/2023 to 6/14/2026 was primarily driven by a 102.7% change in the company's P/E Multiple.
(LTM values as of)53120236142026Change
Stock Price ($)157.55181.5015.2%
Change Contribution By: 
Total Revenues ($ Mil)970845-12.9%
Net Income Margin (%)19.5%11.9%-38.8%
P/E Multiple27.355.3102.7%
Shares Outstanding (Mil)33316.6%
Cumulative Contribution15.2%

LTM = Last Twelve Months as of date shown

Market Drivers

5/31/2023 to 6/14/2026
ReturnCorrelation
ACLS14.3% 
Market (SPY)84.5%56.6%
Sector (XLK)129.7%61.0%

Return vs. Risk

Price Returns Compared

 202120222023202420252026Total [1]
Returns
ACLS Return156%6%63%-46%15%116%496%
Peers Return76%-31%81%-0%59%114%643%
S&P 500 Return27%-19%24%23%16%8%97%

Monthly Win Rates [3]
ACLS Win Rate67%42%58%25%42%83% 
Peers Win Rate72%35%68%47%60%80% 
S&P 500 Win Rate75%42%67%75%67%50% 

Max Drawdowns [4]
ACLS Max Drawdown-31%-42%-39%-55%-43%-20% 
Peers Max Drawdown-19%-49%-19%-37%-39%-20% 
S&P 500 Max Drawdown-5%-25%-10%-8%-19%-9% 


[1] Cumulative total returns since the beginning of 2021
[2] Peers: AMAT, LRCX, KLAC, VECO, ONTO. See ACLS Returns vs. Peers.
[3] Win Rate = % of calendar months in which monthly returns were positive
[4] Max drawdown represents maximum peak-to-trough decline within a year
[5] 2026 data is for the year up to 6/12/2026 (YTD)

How Low Can It Go

EventACLSS&P 500
2025 US Tariff Shock
  % Loss-33.3%-18.8%
  % Gain to Breakeven50.0%23.1%
  Time to Breakeven66 days79 days
2024 Yen Carry Trade Unwind
  % Loss-33.8%-7.8%
  % Gain to Breakeven51.0%8.5%
  Time to Breakeven637 days18 days
2023 SVB Regional Banking Crisis
  % Loss-11.5%-6.7%
  % Gain to Breakeven13.0%7.1%
  Time to Breakeven12 days31 days
2022 Inflation Shock & Fed Tightening
  % Loss-37.5%-24.5%
  % Gain to Breakeven60.1%32.4%
  Time to Breakeven34 days427 days
2020 COVID-19 Crash
  % Loss-52.0%-33.7%
  % Gain to Breakeven108.5%50.9%
  Time to Breakeven91 days140 days
Q4 2018 Fed Policy Error / Growth Scare
  % Loss-22.1%-19.2%
  % Gain to Breakeven28.4%23.8%
  Time to Breakeven32 days105 days

Compare to AMAT, LRCX, KLAC, VECO, ONTO

In The Past

Axcelis Technologies's stock fell -33.3% during the 2025 US Tariff Shock. Such a loss loss requires a 50.0% gain to breakeven.

Preserve Wealth

Limiting losses and compounding gains is essential to preserving wealth.

Asset Allocation

Actively managed asset allocation strategies protect wealth. Learn more.

EventACLSS&P 500
2025 US Tariff Shock
  % Loss-33.3%-18.8%
  % Gain to Breakeven50.0%23.1%
  Time to Breakeven66 days79 days
2024 Yen Carry Trade Unwind
  % Loss-33.8%-7.8%
  % Gain to Breakeven51.0%8.5%
  Time to Breakeven637 days18 days
2022 Inflation Shock & Fed Tightening
  % Loss-37.5%-24.5%
  % Gain to Breakeven60.1%32.4%
  Time to Breakeven34 days427 days
2020 COVID-19 Crash
  % Loss-52.0%-33.7%
  % Gain to Breakeven108.5%50.9%
  Time to Breakeven91 days140 days
Q4 2018 Fed Policy Error / Growth Scare
  % Loss-22.1%-19.2%
  % Gain to Breakeven28.4%23.8%
  Time to Breakeven32 days105 days
2015-2016 China Devaluation / Global Growth Scare
  % Loss-30.2%-12.2%
  % Gain to Breakeven43.3%13.9%
  Time to Breakeven2025 days62 days
2011 US Debt Ceiling Crisis & European Contagion
  % Loss-37.6%-17.9%
  % Gain to Breakeven60.2%21.8%
  Time to Breakeven107 days123 days
2010 Eurozone Sovereign Debt Crisis / Flash Crash
  % Loss-43.2%-15.4%
  % Gain to Breakeven76.1%18.2%
  Time to Breakeven121 days125 days
2008-2009 Global Financial Crisis
  % Loss-96.7%-53.4%
  % Gain to Breakeven2941.2%114.4%
  Time to Breakeven5038 days1085 days
Summer 2007 Credit Crunch
  % Loss-27.9%-8.6%
  % Gain to Breakeven38.7%9.5%
  Time to Breakeven5617 days47 days

Compare to AMAT, LRCX, KLAC, VECO, ONTO

In The Past

Axcelis Technologies's stock fell -33.3% during the 2025 US Tariff Shock. Such a loss loss requires a 50.0% gain to breakeven.

Preserve Wealth

Limiting losses and compounding gains is essential to preserving wealth.

Asset Allocation

Actively managed asset allocation strategies protect wealth. Learn more.

About Axcelis Technologies (ACLS)

Axcelis Technologies, Inc. designs, manufactures, and services ion implantation and other processing equipment used in the fabrication of semiconductor chips in the United States, Europe, and Asia. The company offers high energy, high current, and medium current implanters for various application requirements. It also provides aftermarket lifecycle products and services, including used tools, spare parts, equipment upgrades, maintenance services, and customer training. It sells its equipment and services to semiconductor chip manufacturers through its direct sales force. The company was founded in 1978 and is headquartered in Beverly, Massachusetts.

AI Analysis | Feedback

Here are 1-3 brief analogies for Axcelis Technologies (ACLS):

  • Like ASML, but focused on the crucial ion implantation equipment for semiconductor manufacturing.
  • A specialized Applied Materials, concentrating exclusively on ion implantation tools for chip fabrication.

AI Analysis | Feedback

  • Ion Implantation Equipment: Axcelis designs and manufactures high energy, high current, and medium current implanters used in the fabrication of semiconductor chips.
  • Aftermarket Lifecycle Products and Services: The company offers comprehensive support for its equipment, including used tools, spare parts, equipment upgrades, maintenance services, and customer training.

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Axcelis Technologies (ACLS) Major Customers

Axcelis Technologies (ACLS) primarily sells its specialized ion implantation and other processing equipment, as well as aftermarket services, to other companies. These customers are global semiconductor chip manufacturers who utilize Axcelis's equipment in the fabrication of various types of semiconductor chips.

Based on Axcelis Technologies' public filings, including its annual reports (10-K), the company's sales are concentrated with a limited number of customers, which are described as several of the largest semiconductor chip manufacturers in the world. However, Axcelis has reported that no single customer accounted for 10% or more of its total revenue in the last three fiscal years (2021, 2022, or 2023). As a result of this, Axcelis Technologies is not required by regulatory bodies to publicly disclose the specific names of individual major customers in its regulatory filings, and therefore, specific customer names are not available.

While specific names cannot be listed, Axcelis's major customers are broadly identified as leading global semiconductor chip manufacturers, encompassing both integrated device manufacturers (IDMs) and pure-play foundries, across regions such as the United States, Europe, and Asia.

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  • Applied Materials, Inc. (AMAT)
  • Brooks Automation, Inc. (BRKS)
  • MKS Instruments, Inc. (MKSI)
  • Ultra Clean Holdings, Inc. (UCTT)

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Dr. Russell Low, President and Chief Executive Officer

Dr. Low assumed the role of President and Chief Executive Officer of Axcelis Technologies in May 2023. He joined Axcelis in October 2016, initially serving as Executive Vice President of Engineering, and later as Executive Vice President of Global Customer and Engineering Operations starting in January 2021. Prior to his tenure at Axcelis, Dr. Low was Vice President of Engineering, MOCVD Business Unit at Veeco Instruments from 2013, and Senior Director of Engineering, Molecular Beam Epitaxy Business Unit at Veeco from 2012. From 2003 to 2012, he held various positions at Varian Semiconductor Equipment Associates, including Director of Technology. Earlier in his career, he held engineering roles in the thermal processing and ion implant divisions of Applied Materials, Inc. Dr. Low earned his Ph.D. in Physical Chemistry from Oxford University, an Executive MBA from the Massachusetts Institute of Technology, and a BS degree from Southampton University, and was a Visiting Fellow at Stanford University. He holds 44 granted U.S. patents and has authored over 20 refereed papers. He joined the North American Advisory Board (NAAB) of SEMI International in 2023 and the Massachusetts High Tech Council Board in 2024.

David Ryzhik, Interim Chief Financial Officer

Mr. Ryzhik was appointed Interim Chief Financial Officer of Axcelis Technologies, effective March 12, 2026. He has served as Senior Vice President of Investor Relations and Corporate Strategy at Axcelis since July 2024. Before joining Axcelis, he was Vice President of Investor Relations at MKS Instruments. His prior experience also includes roles as a Senior Equity Research Analyst at Susquehanna International Group and a Senior Research Associate at Brean Capital. He also held financial roles in public administration at the NYC Mayor's Office of Management & Budget and the NYC Fire Department. Mr. Ryzhik holds a Master of Business Administration in Financial Management and a Bachelor of Business Administration in Finance and Accounting from Pace University's Lubin School of Business.

Douglas A. Lawson, Executive Vice President, Corporate Marketing and Strategy

Mr. Lawson oversees all corporate marketing operations and strategy development for Axcelis Technologies. He joined the company in 2009. Prior to his current role, he held the position of Senior Vice President of Strategic Initiatives at Axcelis. Before joining Axcelis, he was the General Manager of Luminus Devices. With over 25 years of experience in the technology industry, Mr. Lawson has held numerous executive and technical positions at companies such as BTU International, PRI Automation, Digital Equipment, and Intel. He holds a BS degree in Chemical Engineering from the University of Lowell, as well as an MS degree in Manufacturing Engineering and an MBA from Boston University.

Lynnette C. Fallon, Senior Advisor

Ms. Fallon currently serves as Senior Advisor for Axcelis Technologies. She previously held the position of Executive Vice President of Human Resources & Legal, General Counsel and Corporate Secretary, a role she had held since May 2005. She joined Axcelis as its first General Counsel. Before joining Axcelis, Ms. Fallon practiced corporate and securities law for 14 years at a major Boston firm, having started her legal career at a boutique Wall Street firm.

Dr. Greg Redinbo, Executive Vice President, Marketing and Applications

Dr. Redinbo is responsible for leading Axcelis' efforts in developing products and marketing strategies. He joined Axcelis in 2021 as Senior Vice President of Strategic Marketing and Business Development. Dr. Redinbo brings over 25 years of experience in the semiconductor capital equipment industry. Prior to Axcelis, he served as Vice President, Global Strategic Accounts at ASML, where he focused on business and relationship growth with a leading logic manufacturer. Before his time at ASML, he was the Global Vice President of Sales, Service and Applications at FEI, a microscopy solutions company.

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The key risks to Axcelis Technologies (ACLS) include:

  1. Geopolitical Risks and Export Controls: Axcelis Technologies faces significant exposure to geopolitical risks, particularly concerning its substantial sales in China. The evolving landscape of U.S. export controls and trade tensions with China creates considerable uncertainty, potentially disrupting the company's business operations and revenue streams from this critical market.
  2. Cyclicality of the Semiconductor Industry: The company's financial performance is highly sensitive to the cyclical nature of the semiconductor equipment market. Axcelis's revenue and profitability are directly tied to the capital expenditure decisions of semiconductor chip manufacturers, making it vulnerable to industry downturns and fluctuations in demand for new equipment.
  3. Intense Competition: Axcelis operates in a highly competitive industry, facing pressure from both larger established players, such as Applied Materials, and smaller, innovative firms. The company must continuously innovate and differentiate its ion implantation technology to maintain its market position and avoid losing market share.

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The addressable markets for Axcelis Technologies' main products and services are primarily within the global ion implanter market and the broader semiconductor manufacturing equipment sector.

For its core product, ion implanters, the global market size has various estimates:

  • The global ion implanter market was valued at USD 1.64 billion in 2024 and is projected to reach USD 2.38 billion by 2033, growing at a compound annual growth rate (CAGR) of 4.21% during 2025-2033.
  • Another estimate indicates the global ion implanter market size was valued at USD 2.88 billion in 2025 and is projected to grow from USD 3.10 billion in 2026 to USD 6.97 billion by 2034, exhibiting a CAGR of 12.27% during the forecast period.
  • Other projections show the ion implanter market reaching US$ 2.1 billion in 2025 and climbing to US$ 3.7 billion by 2036, expanding at a CAGR of 5.0% from 2026 to 2036.
  • One source suggests the ion implantation market could grow to USD 3.5 billion by 2030.

Axcelis Technologies also specializes in the Silicon Carbide (SiC) power applications segment within ion implantation, where it holds a significant market share, estimated between 70-80%.

Regarding aftermarket lifecycle products and services, while a specific addressable market size solely for ion implanter aftermarket services is not explicitly available, these services fall under the broader semiconductor manufacturing equipment aftermarket. This market encompasses services that support and enhance the performance of semiconductor manufacturing equipment, aiming to improve efficiency, extend lifespan, and upgrade existing equipment.

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Here are 3-5 expected drivers of future revenue growth for Axcelis Technologies (ACLS) over the next 2-3 years:

  1. Growth in the Memory Market (DRAM and HBM): Axcelis Technologies anticipates significant growth in the memory market, specifically in DRAM and High Bandwidth Memory (HBM) applications. This growth is primarily driven by increasing demand for AI-related applications, with momentum expected to extend into 2026 and 2027 as customers expand their manufacturing capacity to meet these demands.
  2. Continued Strength in Aftermarket Lifecycle Products and Services (CS&I): The company expects sustained strong performance and growth in its Customer Support and Spares & Services (CS&I) business. This segment has demonstrated robust performance due to strong demand for equipment upgrades and maintenance services, which are key strategic initiatives for Axcelis.
  3. Expanded Market Opportunities from the Veeco Instruments Merger: The pending merger with Veeco Instruments, slated to close in the second half of 2026, is a significant driver. This strategic combination is projected to expand the combined entity's addressable market to over $5 billion, driven by demand from AI and power semiconductors, and is expected to generate revenue synergies through cross-selling and complementary technology portfolios.
  4. New Product Introductions: The launch of new, advanced ion implantation products, such as the Purion H6 high-current implanter, is expected to drive revenue. These new tools are designed to support critical high-current applications across various technology nodes, addressing evolving customer needs and expanding Axcelis' market reach.
  5. Long-term Demand in Power and General Mature Markets, particularly Silicon Carbide: Despite some near-term moderation, Axcelis foresees strong long-term demand driven by secular trends in power semiconductors, especially the growing adoption of silicon carbide in electric vehicles and other electrification applications. This includes opportunities arising from the ongoing transition to larger 200-millimeter silicon carbide wafers.

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Capital Allocation Decisions for Axcelis Technologies (ACLS) (Last 3-5 Years)

Share Repurchases

  • In March 2025, Axcelis Technologies increased its share repurchase authorization by $100 million, raising the total available authorization to $215 million.
  • A new $100 million share repurchase program was authorized in March 2022.
  • The company completed a $232.94 million share repurchase program by August 2025.

Share Issuance

  • Axcelis Technologies' shares outstanding generally decreased over the period, from 33.29 million in 2021 to 31.287 million at the end of 2025, indicating net share reductions rather than significant issuances.
  • An all-stock merger with Veeco Instruments Inc., announced in October 2025 and expected to close in the second half of 2026, will result in Axcelis shareholders owning approximately 58% of the combined company, implying new share issuance to Veeco shareholders.

Outbound Investments

  • Axcelis Technologies announced an all-stock merger with Veeco Instruments Inc. in October 2025, aiming to create a diversified semiconductor equipment company with an approximate enterprise value of $4.4 billion.
  • This merger is intended to broaden product offerings, diversify end markets, and strengthen Axcelis's presence outside China.

Capital Expenditures

  • Capital expenditures were reported as -$11.30 million for the last 12 months (as of a February 2026 report).
  • In Q4 2025, purchases of property, plant, and equipment were -$2.3 million.
  • The company strategically allocates capital expenditures and research and development towards new platforms, such as the Purion Power Series+ Ion Implant Platform, crucial for the high-growth silicon carbide (SiC) power device market.

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Peer Comparisons

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Financials

ACLSAMATLRCXKLACVECOONTOMedian
NameAxcelis .Applied .Lam Rese.KLA Veeco In.Onto Inn. 
Mkt Price181.50571.59369.21255.4378.34327.00291.22
Mkt Cap5.6453.8461.4334.44.716.3175.3
Rev LTM84529,02421,68213,0976551,0317,064
Op Inc LTM988,7457,4275,459301262,792
FCF LTM885,3436,0054,010432392,124
FCF 3Y Avg1196,0034,7793,534432141,874
CFO LTM977,9936,9554,402572632,332
CFO 3Y Avg1337,7685,4503,862632412,051

Growth & Margins

ACLSAMATLRCXKLACVECOONTOMedian
NameAxcelis .Applied .Lam Rese.KLA Veeco In.Onto Inn. 
Rev Chg LTM-11.8%3.3%26.5%13.4%-7.7%0.5%1.9%
Rev Chg 3Y Avg-3.5%2.9%7.5%8.0%0.8%3.2%3.1%
Rev Chg Q3.3%11.4%23.8%11.5%-5.4%9.5%10.5%
QoQ Delta Rev Chg LTM0.8%2.9%5.5%2.8%-1.3%2.5%2.6%
Op Inc Chg LTM-46.5%5.0%40.5%17.6%-65.8%-42.1%-18.6%
Op Inc Chg 3Y Avg-17.6%4.0%13.7%11.6%-2.1%-4.9%0.9%
Op Mgn LTM11.6%30.1%34.3%41.7%4.6%12.2%21.2%
Op Mgn 3Y Avg18.3%29.6%31.1%39.4%9.6%16.4%23.9%
QoQ Delta Op Mgn LTM-2.6%0.4%0.5%-0.3%-2.2%-2.8%-1.2%
CFO/Rev LTM11.4%27.5%32.1%33.6%8.8%25.5%26.5%
CFO/Rev 3Y Avg13.5%27.9%30.9%33.9%9.2%24.7%26.3%
FCF/Rev LTM10.5%18.4%27.7%30.6%6.5%23.2%20.8%
FCF/Rev 3Y Avg12.0%21.7%27.2%31.0%6.3%22.0%21.8%

Valuation

ACLSAMATLRCXKLACVECOONTOMedian
NameAxcelis .Applied .Lam Rese.KLA Veeco In.Onto Inn. 
Mkt Cap5.6453.8461.4334.44.716.3175.3
P/S6.615.621.325.57.215.815.7
P/Op Inc56.851.962.161.3158.7129.361.7
P/EBIT46.142.660.359.0149.5129.359.6
P/E55.353.368.871.6204.7152.970.2
P/CFO57.756.866.376.082.461.964.1
Total Yield1.8%2.2%1.7%1.7%0.5%0.7%1.7%
Dividend Yield0.0%0.3%0.3%0.3%0.0%0.0%0.1%
FCF Yield 3Y Avg4.9%3.6%3.3%3.1%2.8%2.8%3.2%
D/E0.00.00.00.00.10.00.0
Net D/E-0.1-0.0-0.00.0-0.0-0.0-0.0

Returns

ACLSAMATLRCXKLACVECOONTOMedian
NameAxcelis .Applied .Lam Rese.KLA Veeco In.Onto Inn. 
1M Rtn17.0%31.1%29.7%41.7%33.6%20.3%30.4%
3M Rtn118.2%67.6%74.0%80.3%153.1%72.5%77.1%
6M Rtn112.0%121.1%130.3%114.5%155.8%109.1%117.8%
12M Rtn178.9%237.5%315.5%196.3%283.5%245.3%241.4%
3Y Rtn6.2%318.1%510.3%454.4%216.8%208.9%267.4%
1M Excs Rtn12.1%31.3%25.1%38.4%30.2%18.2%27.7%
3M Excs Rtn106.0%55.4%61.9%68.2%140.9%60.4%65.0%
6M Excs Rtn92.9%100.3%111.7%98.8%135.1%86.2%99.5%
12M Excs Rtn143.6%209.6%285.4%171.3%239.5%203.6%206.6%
3Y Excs Rtn-68.3%259.2%447.6%390.6%133.5%118.8%196.3%

Comparison Analyses

Financials

Segment Financials

Revenue by Segment
$ Mil20252024202320222021
Ion implantation systems and services8241,0011,111898646
Other systems and services1517192217
Total8391,0181,131920662


Price Behavior

Price Behavior
Market Price$180.12 
Market Cap ($ Bil)5.5 
First Trading Date07/11/2000 
Distance from 52W High0.0% 
   50 Days200 Days
DMA Price$142.55$100.56
DMA Trendupup
Distance from DMA26.4%79.1%
 3M1YR
Volatility77.3%58.2%
Downside Capture137.20181.78
Upside Capture354.25255.20
Correlation (SPY)52.5%48.1%
ACLS Betas & Captures as of 5/31/2026

 1M2M3M6M1Y3Y
Beta6.393.742.262.312.191.95
Up Beta12.515.042.762.552.251.79
Down Beta-0.681.601.381.741.931.65
Up Capture459%392%415%436%555%1311%
Bmk +ve Days13283667141432
Stock +ve Days10243767129363
Down Capture784%285%131%166%154%113%
Bmk -ve Days7132757109318
Stock -ve Days10172657119385

[1] Upside and downside betas calculated using positive and negative benchmark daily returns respectively
Based On 1-Year Data
Annualized
Return
Annualized
Volatility
Sharpe
Ratio
Correlation
with ACLS
ACLS173.7%58.4%1.95-
Sector ETF (XLK)54.9%22.5%1.8648.9%
Equity (SPY)24.9%12.3%1.5247.9%
Gold (GLD)25.5%27.4%0.8115.9%
Commodities (DBC)30.1%19.0%1.25-15.3%
Real Estate (VNQ)13.5%13.5%0.6928.7%
Bitcoin (BTCUSD)-41.7%42.2%-1.1626.0%

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Based On 5-Year Data
Annualized
Return
Annualized
Volatility
Sharpe
Ratio
Correlation
with ACLS
ACLS34.9%55.0%0.75-
Sector ETF (XLK)22.4%25.1%0.7965.4%
Equity (SPY)13.5%17.1%0.6161.2%
Gold (GLD)16.8%18.2%0.758.6%
Commodities (DBC)8.4%19.4%0.339.1%
Real Estate (VNQ)2.8%18.8%0.0535.7%
Bitcoin (BTCUSD)13.6%54.4%0.4426.5%

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Based On 10-Year Data
Annualized
Return
Annualized
Volatility
Sharpe
Ratio
Correlation
with ACLS
ACLS15.4%58.5%0.55-
Sector ETF (XLK)25.1%24.6%0.9257.3%
Equity (SPY)15.3%17.9%0.7353.2%
Gold (GLD)12.5%16.1%0.647.3%
Commodities (DBC)6.7%18.0%0.2914.9%
Real Estate (VNQ)5.7%20.7%0.2433.7%
Bitcoin (BTCUSD)60.3%66.8%1.0015.2%

Smart multi-asset allocation framework can stack odds in your favor. Learn How

Short Interest

Short Interest: As Of Date5292026
Short Interest: Shares Quantity2.5 Mil
Short Interest: % Change Since 5152026-3.2%
Average Daily Volume0.5 Mil
Days-to-Cover Short Interest5.4 days
Basic Shares Quantity30.7 Mil
Short % of Basic Shares8.3%

Earnings Returns History

Updated 6/9/2026
Expand for More
 Forward Returns
Earnings Date1D Returns5D Returns21D Returns
5/7/20262.8%1.9%-2.5%
2/17/2026-16.7%-17.0%-13.0%
11/4/2025-2.7%5.7%7.7%
8/5/202510.1%10.0%11.0%
5/6/20255.0%19.3%18.0%
2/10/2025-12.3%-6.1%-12.1%
11/6/2024-1.0%-9.4%-15.6%
7/31/2024-10.7%-18.7%-13.4%
...
SUMMARY STATS   
# Positive111214
# Negative131210
Median Positive5.0%7.6%9.1%
Median Negative-5.9%-8.7%-12.8%
Max Positive12.8%21.7%37.3%
Max Negative-16.7%-18.7%-16.9%

SEC Filings

Expand for More
Report DateFiling DateFiling
03/31/202605/08/202610-Q
12/31/202502/26/202610-K
09/30/202511/06/202510-Q
06/30/202508/05/202510-Q
03/31/202505/06/202510-Q
12/31/202402/28/202510-K
09/30/202411/07/202410-Q
06/30/202408/01/202410-Q
03/31/202405/02/202410-Q
12/31/202302/23/202410-K
09/30/202311/02/202310-Q
06/30/202308/03/202310-Q
03/31/202305/05/202310-Q
12/31/202202/24/202310-K
09/30/202211/03/202210-Q
06/30/202208/04/202210-Q

Recent Forward Guidance

Updated 5/31/2026

Latest: Q1 2026 Earnings Reported 5/7/2026

Forward GuidanceGuidance Change
MetricLowMidHigh% Chg% DeltaChangePrior
Q2 2026 Revenue 205.00 Mil 5.1% Higher NewGuidance: 195.00 Mil for Q1 2026
Q2 2026 GAAP EPS 0.57 50.0% Higher NewGuidance: 0.38 for Q1 2026
Q2 2026 Non-GAAP EPS 0.9 26.8% Higher NewGuidance: 0.71 for Q1 2026

Prior: Q4 2025 Earnings Reported 2/17/2026

Forward GuidanceGuidance Change
MetricLowMidHigh% Chg% DeltaChangePrior
Q1 2026 Revenue 195.00 Mil -9.3% LoweredGuidance: 215.00 Mil for Q4 2025
Q1 2026 GAAP EPS 0.38 -50.0% LoweredGuidance: 0.76 for Q4 2025
Q1 2026 Non-GAAP EPS 0.71 -36.6% LoweredGuidance: 1.12 for Q4 2025

Insider Activity

Updated 6/4/2026
Expand for More
#OwnerTitleHoldingActionFiling DatePriceSharesTransacted
Value
Value of
Held Shares
Form
1Sayiner, NecipDirectSell6042026157.441,586249,7031,119,729Form
2Mahoney, Robert JohnEVP Global OperationsDirectSell6032026155.241,155179,3022,237,008Form
3Sutton, ToddVP Corporate ControllerDirectSell5282026159.992,000319,9801,017,536Form
4St, Dennis ThomasDirectSell5262026155.37900139,8332,749,272Form
5Evans, EileenEVP, General Counsel and Sec'yDirectSell5222026155.51926143,9984,866,538Form
Core Cache Last Updated: 6/14/2026