AXCELIS TECHNOLOGIES INC (ACLS)
Information Technology · semiconductor capital equipment · NASDAQ
Axcelis Technologies is a leading provider of innovative ion implantation solutions essential for the manufacturing of complex semiconductor devices.
What AXCELIS TECHNOLOGIES INC does
Axcelis Technologies designs, manufactures, and services ion implantation equipment used in the semiconductor manufacturing process. The company provides a range of ion implantation solutions, including high-energy, high-current, and medium-current implanters, to semiconductor chip manufacturers worldwide.
Themes: semiconductor manufacturing equipment, wafer fabrication, chip production technology
Fundamentals
- Price$127.07 as of 2026-08-21 close
- Market cap$3.9B as of 2026-08-21
- 1-year return+61.9% 2025-08-21 close $78.51 → 2026-08-21 close $127.07
- P/E44.42 as of 2026-08-24
- Net margin+11.9% as of 2026-08-24
- Gross margin+43.6% as of 2026-08-24
- ROE+9.8% as of 2026-08-24
- Debt / equity0.04 as of 2026-08-24
- Revenue growth (YoY)-11.8% as of 2026-08-24
- Revenue CAGR (3y)-3.0% SEC XBRL
- Beta1.88 as of 2026-08-24
- Last reported earnings2026-08-06 SEC EDGAR Form 8-K (Item 2.02)
How ACLS compares in its sector
- price-to-earnings ratiomiddle range 265 covered Information Technology peers, as of 2026-08-24
- net profit marginmiddle range 405 covered Information Technology peers, as of 2026-08-24
- operating marginmiddle range 405 covered Information Technology peers, as of 2026-08-24
- gross marginmiddle range 403 covered Information Technology peers, as of 2026-08-24
- return on equitymiddle range 405 covered Information Technology peers, as of 2026-08-24
- 3-year revenue CAGRbottom 25% 386 covered Information Technology peers
- free cash flow (absolute dollars, latest fiscal year)middle range 382 covered Information Technology peers, as of FY2025
Position among covered Information Technology companies that report each metric (minimum 5 peers). A relative position within our covered catalog — not a valuation, quality, or investment judgment. A higher percentile is simply a higher value (for P/E, more expensive on earnings — never "better"). Informational only.
Top 10 scores & list membership
ACLS is not currently in any published Top 10 list. Its scores are below.
Long-term score
Not scored for the long-term list: no shareholder return data.
Short-term score
33.7 #1591 of 1,704 scored · #247 of 261 in Information Technology
Setup 62nd: over the past year its closes ranged, and it has retraced around half of its move over the past year — 55% of it; volume and participation 39th: trading volume is about normal versus its 30-day average; weakest is catalysts 4th: the analyst consensus rating has softened toward "sell" since the prior reading.
Scores as of 21 Aug 2026. Each bar is a percentile: how this company ranked against every company the score ranked, 0–100. A list is a published formula and its output, not a recommendation. Method version 2.
How AXCELIS TECHNOLOGIES INC looks technically
AXCELIS TECHNOLOGIES INC (ACLS) is trading 10.7% above its 200-day average, the long-term trend line — a longer-term uptrend. Its 50-day average crossed above its 200-day average about 268 trading days ago — a "golden cross", a bullish long-term signal. There is no clear trend right now — the price is choppy (ADX, a 0–100 trend-strength gauge, is 14, below the 25 that marks a real trend), though sellers have been pushing harder than buyers lately — pressure, not a trend. Momentum is neutral — its 14-day RSI (a 0–100 momentum gauge) is 43, neither overbought (above 70) nor oversold (below 30). MACD, a trend-momentum gauge, turned bearish about 2 trading days ago (its momentum flipped negative). It made a new 20-day high about 5 trading days ago. It is 34.4% below its highest point of the past year.
Trend
8
| Distance from the 200-day | it is trading 10.7% above its 200-day average, the long-term trend line — a longer-term uptrend | +10.7% |
|---|---|---|
| 50-day moving average | its average price over the last 50 trading days — a short-term trend line — is $148.23 | $148.23 |
| 200-day moving average | its average price over the last 200 trading days — the long-term trend line — is $114.75 | $114.75 |
| Swing structure | each recent peak has been lower than the one before it and each dip deeper — the pattern chart-watchers call a downtrend, which describes where price has already been and not where it goes next | lower highs and lower lows |
| Last swing turn | its last significant turn was a swing low 23 calendar days ago — the swings before that are what the structure reading is measured on | 23 sessions |
| Wave structure | its recent swings can be read as a completed three-part downward correction — a pullback in the A-B-C shape Elliott-wave chartists use; the labelling fails if price closes below 111.8. It is the only labelling that fits, though not with textbook proportions, and it describes the swings already printed, not what comes next. | possible three-wave downward correction, complete (atypical proportions) |
| Since the 50/200 cross | its 50-day average crossed above its 200-day average about 268 trading days ago — a "golden cross", a bullish long-term signal | 268 sessions |
| Trend strength (14-day ADX) | there is no clear trend right now — the price is choppy (ADX, a 0–100 trend-strength gauge, is 14, below the 25 that marks a real trend), though sellers have been pushing harder than buyers lately — pressure, not a trend | 13.8 |
Momentum
3
| 14-day RSI | momentum is neutral — its 14-day RSI (a 0–100 momentum gauge) is 43, neither overbought (above 70) nor oversold (below 30) | 42.7 |
|---|---|---|
| Position in its 14-day range | it is trading in the lower half of its 14-day range ($121.95 to $145.70) — its "stochastic" reading is 22 out of 100, where 0 would mean closing exactly at the 14-session low and 100 exactly at the high. This measures WHERE the price sits inside its recent range, which is a different question from the RSI beside it: RSI is a momentum gauge, measuring how FAST the price has been moving, so a stock can drift quietly to the bottom of its range with an ordinary RSI, or fall sharply and still sit in the middle. It has been climbing within that range over the last few sessions. | 21.6 |
| Since the MACD crossed zero | MACD, a trend-momentum gauge, turned bearish about 2 trading days ago (its momentum flipped negative) | 2 sessions |
Range
12
| 52-week high | its highest closing price over the past year (about 252 trading days) was $193.78 | $193.78 |
|---|---|---|
| From the 52-week high | it is 34.4% below its 52-week high (its highest price of the past year) | -34.4% |
| Above the 52-week low | it is 72.6% above its 52-week low (its lowest price of the past year) | +72.7% |
| Below the 52-week high | it is 34.4% below its highest point of the past year | 34.4% |
| Since a 20-day breakout | it made a new 20-day high about 5 trading days ago | 5 sessions |
| Since a 55-day breakout | it made a new 55-day low about 18 trading days ago | 18 sessions |
| All-time high | its highest closing price on record is $201.00 (set on 2023-08-01) | $201.00 |
| Given back of the 52-week move | over the past year its closes ranged ($74.12 to $191.60), and it has given back around half of its rise from last year’s low — 55% of it. Chart-watchers call 61.8%-65% given back the "golden pocket" — for this company that is $115.24 to $119.00. It is watched widely enough that orders cluster there, which is the honest reason it matters; it is not a forecast. | 54.9% |
| From the all-time high | it is 36.8% below its all-time high | -36.8% |
| Nearest price level | it is trading 12.7% above a support level at $110.98 — a price it turned at twice since 2024-09-26, most recently on 2026-07-29. Since 2024-08-21 it has 14 such levels below the current price and 2 above. Levels like these describe where the price has reversed or paused before; they are not a forecast of where it will go. | -12.7% |
| All-time low | its lowest closing price on record is $0.68 (set on 2009-02-25) | $0.68 |
| Above the all-time low | it is 18586.8% above its all-time low | +18,587% |
Volatility
5
| Band width vs its own 6 months | day-to-day price swings are about average versus its own recent 6-month history | 36th percentile |
|---|---|---|
| Typical daily range | in a typical session it travels about $9.01 between its high and its low — about 7.1% of its price. That is its "average true range" over the last 14 sessions, which also counts the distance from the previous close, so a day that opens well away from yesterday counts as the large move it was | $9.01 |
| Bollinger bands (20-day, ±2σ) | most of its recent trading has stayed between about $116.23 and $148.92 — the "Bollinger bands", a range drawn two standard deviations either side of its 20-day average price, which widens when the stock gets more volatile and narrows when it settles | $116.23 – $132.57 – $148.92 |
| Typical daily range (% of price) | its price moves about 7.1% in a typical session — more volatile than most companies we cover. This is the average gap between a session's high and low over the last 14 sessions, counting overnight moves, expressed against the current price so it can be compared with companies trading at any price | 7.1% |
| Stretch from the 200-day average | it is trading 1.4 daily ranges above its 200-day average price (10.7% above it in plain percentage terms) — a way of asking how far it has stretched from its own average in units of how far it normally moves in a day, so a calm company and a jumpy one can be compared on the same scale | 1.4 daily ranges above its 200-day average |
Volume
1
| Volume vs its 30-day average | trading volume is about normal versus its 30-day average | 0.95× |
|---|
Analyst
2
| Change in the average price target | analysts have cut their average price target by 3.0% since the prior reading | -3.0% |
|---|---|---|
| Change in the consensus rating | the analyst consensus rating has softened toward "sell" since the prior reading | 0.40 toward sell |
Candlestick patterns
3
| Since a doji | today it opened and closed at almost the same price after trading through a wider range — a "doji", the classic picture of buyers and sellers finishing the session level | today |
|---|---|---|
| Since a hammer | today, after a stretch of decline, it sold off hard during the session and then closed back near its high — a "hammer", the long lower wick showing the drop was bought back before the close | today |
| Since a bearish engulfing | 9 sessions ago it opened above the previous session's close and finished below that session's open — a "bearish engulfing" pair, where one down day more than undid the up day before it | 9 sessions ago |
Price gaps
3
| Gap at the open | it opened on 2026-08-21 1.3% above the previous session's close — an overnight gap, the part of the move that happened while the market was shut, and traded back through that level before the close | +1.3% |
|---|---|---|
| Open gap | it gapped 5.5% below the previous close 3 sessions ago and has not traded back through the level it left behind at 144.11 — an "unfilled gap", which describes a price range no trade has since crossed and is not a forecast that it will be crossed | -5.5% |
| Gap filled | a 2.1% gap down opened on 2026-08-14 has been "filled" 4 sessions ago — price traded back through the level the gap left behind, and it took 1 session to close | 4 sessions ago |
Price streaks
1
| Closing streak | it closed higher in its latest session, after a session that did not close higher — a single up day rather than a run | 1 session up |
|---|
Relative strength
4
| vs market, 1 month | over the past 1 month this stock lagged the market by 13.6 percentage points (the stock lost 11.3% while the market gained 2.3%) | -13.6% |
|---|---|---|
| vs market, 3 months | over the past 3 months this stock lagged the market by 19.8 percentage points (the stock lost 16.7% while the market gained 3.1%) | -19.8% |
| vs market, 6 months | over the past 6 months this stock beat the market by 47.5 percentage points (the stock gained 58.5% while the market gained 11.1%) | +47.5% |
| vs market, 12 months | over the past 12 months this stock beat the market by 41.4 percentage points (the stock gained 61.9% while the market gained 20.5%) | +41.4% |
Signal agreement
2
| Bullish technical signals | 3 of the 9 technical signals we can compute for it are currently in a bullish state: a "golden cross" — its 50-day average is above its 200-day, trading above its 200-day average, outperforming the market over 6 months — these describe past price behaviour, not a forecast | 3 of 9 |
|---|---|---|
| Bearish technical signals | 2 of the 9 technical signals we can compute for it are currently in a bearish state: MACD momentum is negative, trading below the Ichimoku cloud — these describe past price behaviour, not a forecast | 2 of 9 |
Trend (Ichimoku cloud)
1
| Vs the Ichimoku cloud | trading 17% below the Ichimoku cloud — a band drawn from where its own highs and lows sat up to 2026-07-15 and projected forward over today's price, the side traders read as an established downtrend, with the band above acting as the level that would have to be cleared. The band itself is moderate, spanning 3.4% of the share price. | -17.4% |
|---|
Volume-weighted price
2
| Vs this year’s average price paid | the price is 6% above the average price paid so far this year, so the typical buyer over that stretch is showing a gain. That average is $119.69 — a volume-weighted average of daily closes over 159 sessions, not a true tick-by-tick VWAP. | +6.2% |
|---|---|---|
| Vs the average paid since it last reported | the price is 6% below the average price paid since it last reported on 2026-08-06 (its 10-Q), so the typical buyer over that stretch is under water. That average is $135.39 — a volume-weighted average of daily closes over 12 sessions, not a true tick-by-tick VWAP. | -6.2% |
Price levels it has turned at before
ACLS last closed at $127.07 on 2026-08-21. Since 2024-08-21 it has turned at 14 prices below its last close and 2 above; the 3 nearest below and the 2 nearest above are listed, nearest first.
| Level | Side | Distance | Evidence |
|---|---|---|---|
| $110.98 | Support | 12.7% below the last close | turned there twice · 2024-09-26 to 2026-07-29 |
| $148.97 | Resistance | 17.2% above the last close | turned there twice · 2026-04-24 to 2026-07-15 |
| $103.31 | Support | 18.7% below the last close | turned there twice · 2024-09-13 to 2025-09-23 |
| $100.98 | Support | 20.5% below the last close | turned there twice · 2026-01-15 to 2026-03-25 |
| $192.49 | Resistance | 51.5% above the last close | turned there twice · 2026-06-15 to 2026-06-30 |
A level is a price this company reversed or paused at more than once — they describe past behaviour, not a forecast of where the price will go.
Wave structure
Its recent swings can be read as a three-part downward correction — the A-B-C shape chartists use for a pullback — now complete.
This labelling fails — stops being a possible reading at all — if it closes below $111.80.
It is the only labelling that fits these swings, though its proportions are not the textbook ones.
This labelling was already in place when we began recording count changes on 2026-08-13, so how long it has stood is not something we can say yet.
Read from daily closes as of 2026-08-21.
An Elliott-wave count describes the swings already printed and the level that would disprove it. It is not a forecast, a target, or advice.
Screens: Trading above the 200-day moving average · Pulled back from the 12-month high · MACD just crossed bearish (12/26/9) · trendless / choppy (low ADX) · Analyst price target recently CUT · beating the market | Learn: moving average · golden cross · adx · rsi · macd · breakout · fifty two week high low
Based on daily closing prices as of 2026-08-21. Describes past price behavior only — informational, not financial advice.
Analyst consensus
- Mean price target$161.00 range $140.00 – $198.00; median $145.00
Analyst estimates, as of 2026-08-24. These are third-party analyst opinions and price targets, aggregated — not a recommendation, prediction, or advice from stocks-llm. Informational only.
Analyst EPS estimate for ACLS
- Consensus EPS estimate$1.11 next reporting period, as of 2026-08-24
Change over time is not available yet: it needs two readings of the same reporting period at least 30 days apart, and we have been recording these estimates since 2026-08-04. An estimate for a DIFFERENT quarter is not a revision, so a reading from before the last report is never compared with one after it.
The consensus estimate for the next reporting period, and how it has moved between readings of that SAME period. A change is measured only between readings estimating one period — when a company reports, the consensus moves to the next quarter and the two numbers are not comparable. Informational only, not a forecast and not advice.
Key risks (from latest filing)
["High concentration of revenue from a limited number of customers in the semiconductor industry.","Significant exposure to cyclicality and volatility within the semiconductor capital equipment market.","Dependency on global supply chain stability and potential geopolitical risks affecting semiconductor manufacturing."]
What changed in the latest 10-Q
AI-assisted comparison of ACLS's 10-Q filed 2026-05-08 against the prior one filed 2025-11-06.
Management's Discussion & Analysis (MD&A)
- Added:
- On February 6, 2026, Axcelis held a special meeting of stockholders at which the Company Stock Issuance was approved (newer filing, 2026-05-08)
- The completion of the Merger remains subject to other customary closing conditions, including the final pending regulatory approval from the State Administration for Market Regulation of the People's Republic of China (newer filing, 2026-05-08)
- Axcelis and Veeco continue to expect that the Merger will be completed in the second half of 2026 (newer filing, 2026-05-08)
- Management has not identified any need to make any material change in, and has not changed, any of our critical accounting estimates and judgments as described in 'Management's Discussion and Analysis of Financial Condition and Results of Operations' included in our 2025 Form 10-K (newer filing, 2026-05-08)
- Removed:
- Extensive forward-looking statement disclaimers relating to obtaining applicable regulatory and stockholder approvals, satisfying closing conditions, expected tax treatment, timing, and integration benefits/synergies (older filing, 2025-11-06)
- Discussion of failure to obtain approvals, failure to satisfy closing conditions, negative effects of announcement, integration risks, transaction costs, litigation, and supplier/customer/employee relationship impacts (older filing, 2025-11-06)
- Discussion of geopolitical environment surrounding trade and tariffs and its potential impact (older filing, 2025-11-06)
- Discussion of the U.S. Department of Commerce's Bureau of Industry and Security Affiliates Rule effective September 29, 2025 and its potential impact on China-based revenues (older filing, 2025-11-06)
- Reference to '2024 Form 10-K' in Critical Accounting Estimates section (older filing, 2025-11-06)
- Reworded:
- Ten largest customers percentage changed from 53.7% for nine months ended September 30, 2025 (older) to 72.9% for three months ended March 31, 2026 (newer) - different periods being reported
- Mature process segment composition: older filing reported 93% mature process, 1% advanced logic, 6% DRAM for nine months 2025; newer filing reports 68% mature process, 32% DRAM for three months 2026
- Power device shipment percentage changed from 55% (nine months 2025) to 35% (three months 2026); general mature segment changed from 38% to 33% (different periods)
- Forward-looking statements section simplified in newer filing, removing extensive merger-specific risk factors present in older filing
- Reference year changed from '2024 Form 10-K' (older) to '2025 Form 10-K' (newer) in Critical Accounting Estimates section
- Notes:
- The two filings cover different reporting periods (nine months vs. three months), which accounts for some of the numerical and operational changes
- The older filing contains extensive merger-related forward-looking statement disclaimers that are substantially reduced in the newer filing, suggesting potential changes in disclosure strategy rather than operational changes
- The older filing text appears truncated at the end of the Critical Accounting Estimates section, limiting full comparison of that section
Risk Factors
The two filings could not be meaningfully compared for this section.
AI-assisted comparison of two SEC filing sections. It describes wording and theme changes only, makes no materiality, legal, or investment judgement, and is not financial advice. Informational only — not financial advice.
Insider activity (SEC Form 4)
0 open-market purchases and 3 open-market sales by insiders in the last 90 days.
- Last 90 days0 buys · 3 sells ($748986) — 3 selling insiders
- Last 180 days0 buys · 18 sells ($6M) — 13 selling insiders
Activity heuristic: net selling (a transparent product heuristic from the counts above, not a prediction or advice)
Most recent open-market transaction: 2026-06-03. As of 2026-08-24.
View full insider trading history → View SEC Form 3/4/5 filingsAsk about ACLS's insider activity →
Only open-market purchases (SEC code P) and sales (code S) are counted here. Option exercises, vesting/awards, gifts, and shares withheld for taxes are excluded — they are compensation or mechanical, not open-market conviction. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan) and are not necessarily bearish; open-market buying is not a recommendation to buy. Informational only — not financial advice.
Institutional ownership (13F)
5 institutional 13F filers reported holding ACLS as of 2026-03-31 (quarter-end position, filed within 45 days).
- Distinct 13F filers 5
- Reported shares held 8,629,946
- Reported value $803,275,325
reported quarterly holdings change (2025-12-31 → 2026-03-31): 1 new, 3 increased, 1 decreased, 1 exited. Change counts cover only managers that filed 13F reports in BOTH quarters, derived between two quarter-end snapshots — not same-day trades; a single manager is never said to have "bought" or "sold".
Institutional holdings are quarter-end long positions reported on SEC Form 13F-HR, filed up to 45 days after the quarter ends — they are delayed, are not real-time trades, exclude short positions and most non-US securities, and are not investment advice. Any increase/decrease is a reported change between two quarterly snapshots, not a same-day purchase or sale. These are quarter-end snapshots from the 13F filings on SEC EDGAR, filed within 45 days — not real-time, and any change is a difference between two quarterly reports, not a same-day trade. Informational only — not financial advice.
Short interest (FINRA)
ACLS had 1,612,811 shares of reported short interest as of the 2026-07-31 FINRA settlement date (delayed, bi-monthly; not real-time).
ACLS had 5.22% of its shares outstanding sold short as of the 2026-07-31 FINRA settlement date (percent of FLOAT would be higher — float is not disclosed in the source). FINRA reported 3.97 days to cover at the same settlement.
- Reported short interest (shares) 1,612,811
- Short interest (% of shares outstanding) 5.22%
- Prior settlement (shares) 1,769,809
- Reported change -8.87%
- Days to cover (reported) 3.97
Reported to FINRA as of the 2026-07-31 settlement date. Short interest is reported to FINRA and published on a delayed, bi-monthly schedule (as of a settlement date, disseminated roughly eight business days later) — it is NOT real-time, does not cover every venue or all US trading, and is not a short-squeeze prediction or investment advice. Days-to-cover is the value FINRA reports; percent of float is not shown because the source file carries no share-count denominator — where a percent appears it is of shares OUTSTANDING, the larger base, and is therefore a floor on percent of float. Informational only — not financial advice.
Competitors & peers
- Applied Materials (AMAT)
- Lam Research (LRCX)
- Sumitomo Heavy Industries
- SensoTech
AI-enriched competitor set. Linked names are companies covered by stocks-llm; other named peers are shown for reference only.
Compare ACLS vs…
AXCELIS TECHNOLOGIES INC is found in…
Frequently asked questions
What does AXCELIS TECHNOLOGIES INC (ACLS) do?
Axcelis Technologies designs, manufactures, and services ion implantation equipment used in the semiconductor manufacturing process. The company provides a range of ion implantation solutions, including high-energy, high-current, and medium-current implanters, to semiconductor chip manufacturers worldwide.
What sector is AXCELIS TECHNOLOGIES INC (ACLS) in?
AXCELIS TECHNOLOGIES INC (ACLS) is classified in the Information Technology sector. Its industry is semiconductor capital equipment. It trades on NASDAQ.
Who are AXCELIS TECHNOLOGIES INC's (ACLS) competitors?
Notable peers of AXCELIS TECHNOLOGIES INC (ACLS) include Applied Materials, Lam Research, Sumitomo Heavy Industries and SensoTech. This peer set is informational only — not financial advice.
Is AXCELIS TECHNOLOGIES INC (ACLS) overbought or oversold right now?
AXCELIS TECHNOLOGIES INC (ACLS) is currently neither overbought nor oversold — its 14-day RSI (a 0–100 momentum gauge) is 43, in the neutral middle (as of 2026-08-21). RSI describes recent price momentum, not a forecast — informational only, not financial advice.
Where does stocks-llm's data on ACLS come from?
Fundamentals and prices come from market data, as of 2026-08-24; company filings and profile facts come from SEC EDGAR. All figures are delayed daily-close data shown with their as-of date — informational only, not financial advice.
Fundamentals: market data, as of 2026-08-24. Filings: SEC EDGAR. Prices are delayed daily-close data.
Last updated 2026-08-21.
Informational only — NOT financial advice. All figures are delayed daily-close data from SEC EDGAR & market data, shown with their as-of date.