ACLS
Axcelis Technologies Inc
Nasdaq · usd
Axcelis Technologies Inc (ACLS) trades at $106.58 (+1.76%) as of 6:59:56 PM EDT on Oct 23, 2026, -8.23% over the past month. Market cap is $3.23B, with 3.8 days to cover in short interest.
Stock performance
How Axcelis Technologies Inc (ACLS) stock has performed from one day to one year, with its 52-week range.
- 1D
- +1.76%
- 1W
- -1.63%
- 1M
- -8.23%
- YTD
- +32.66%
- 1Y
- +27.93%
- 52-wk range
- $73.60 – $193.78
Key statistics
Today's trading snapshot for ACLS: day range, open, previous close, volume and market cap.
- Day range
- $104.00 – $108.45
- Open
- $104.40
- Prev close
- $104.74
- Volume
- 403.28K
- Market cap
- $3.23B
- Shares out
- 30.88M
Valuation and profitability ratios: P/E, P/S, ROE
Valuation and profitability ratios for Axcelis Technologies Inc: P/E, P/S, P/B, ROE and more.
- P/E
- 34.86
- P/S
- 3.73
- P/B
- 3.03
- P/FCF
- 49.34
- ROE
- 8.7%
- ROA
- 6.7%
- Debt/Equity
- 0.04
- Div yield
- 0.00%
As of Oct 22, 2026
8-K filings
Material corporate events Axcelis Technologies Inc has disclosed to the SEC on Form 8-K.
- Shareholder meetingsMay 6, 2026
At the Annual Meeting, each of the eight nominees for election as directors received the number of votes set forth opposite such nominee's name, constituting a plurality of the votes cast, and therefore such nominee has been duly elected as a director of the Company.
- Executive leadershipMar 12, 2026
In connection with such appointment, the Compensation Committee approved the following compensation for Mr. Ryzhik in respect of his service as the Interim Chief Financial Officer: (i) an increase in Mr. Ryzhik's monthly base salary of $8,750; (ii) an increase in Mr. Ryzhik's annual bonus opportunity of $27,242 per month; and (iii) the grant or grants of time-based restricted stock units (RSUs) with an aggregate grant date fair value of $400,000.
- Shareholder meetingsFeb 6, 2026
On February 6, 2026, Axcelis held a special meeting of stockholders (the 'Special Meeting') to consider certain proposals related to the Merger. The Share Issuance Proposal and the Adjournment Proposal were each approved by the requisite vote of the Company's stockholders. The Share Issuance Proposal was approved with 24,128,309 votes for (95.84%), 1,048,205 against (4.16%), and 51,598 abstentions.
- Deal agreementsFeb 2, 2026
on September 30, 2025, Axcelis Technologies, Inc., a Delaware corporation ('Axcelis'), entered into an Agreement and Plan of Merger (the 'Merger Agreement'), by and among Axcelis, Victory Merger Sub, Inc., Delaware corporation and a direct wholly owned subsidiary of Axcelis ('Merger Sub') and Veeco Instruments Inc., a Delaware corporation ('Veeco'), pursuant to which, subject to the terms and conditions set forth therein, Merger Sub will be merged with and into Veeco, with Veeco surviving such merger as a wholly owned subsidiary of Axcelis (the 'Merger').
- Legal proceedingsJan 28, 2026
In connection with the Merger, fifteen demand letters have been received by Axcelis and Veeco sent on behalf of, and three complaints have been filed on behalf of, purported stockholders of Axcelis and Veeco challenging the adequacy of certain disclosures made in the Preliminary Joint Proxy Statement, Form S-4 Registration Statement, and Definitive Proxy Statement. Two of the complaints were filed in the Supreme Court of the State of New York, County of New York, and are captioned Turner v. Veeco Instruments Inc. et al., Index No. 650266/2026 and Clark v. Veeco Instruments Inc. et al., Index No. 650284/2026. The third complaint was filed in the Supreme Court of the State of New York, County of Nassau, and is captioned Garfield v. Bayless et al., Index No. 601340/2026.
Dividend history and stock splits
Axcelis Technologies Inc's recent dividend payments and stock splits.
Dividends
No recent dividends.
Splits
- 1-for-4Jul 1, 2016
ACLS short interest
How heavily ACLS is shorted: shares short, days to cover and average daily volume.
- Days to cover
- 3.8
- Short interest
- 1.44M
- Avg volume
- 378.5K
As of · reported to FINRA twice monthly.
ACLS news
The latest news and headlines about Axcelis Technologies Inc (ACLS).
- Should KLAC Stock Be in Your Portfolio Pre-Q1 Earnings Results?positiveZacks Investment Research· Oct 23, 2026
- Axcelis Technologies (ACLS) Dips More Than Broader Market: What You Should KnownegativeZacks Investment Research· Oct 16, 2026
- Axcelis Technologies (ACLS) Stock Slides as Market Rises: Facts to Know Before You TradeneutralZacks Investment Research· Oct 5, 2026
- Axcelis Technologies (ACLS) Stock Moves 2.29%: What You Should KnowneutralZacks Investment Research· Sep 22, 2026
- KLIC Up 93.6% in a Year: Should Investors Bet on the Stock Now?positiveZacks Investment Research· Sep 21, 2026
Frequently asked questions
What is the Axcelis Technologies Inc (ACLS) stock price today?
Axcelis Technologies Inc (ACLS) is trading at $106.58 (+1.76% on the day) as of 6:59:56 PM EDT on Oct 23, 2026. Prices are delayed at least 15 minutes; real-time quotes are available from the Massive API.
What is Axcelis Technologies Inc?
Axcelis Technologies Inc designs, manufactures, and services ion implantation and other processing equipment used in the fabrication of semiconductor chips. In addition to equipment, the company provides aftermarket lifecycle products and services, including used tools, spare…
What is the short interest in ACLS?
As of Sep 30, 2026, ACLS has 1.44M shares short and 3.8 days to cover.
What exchange is ACLS listed on?
Axcelis Technologies Inc (ACLS) trades on Nasdaq in USD, in the SPECIAL INDUSTRY MACHINERY, NEC industry.
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