$ACLS
Axcelis Technologies Inc
XNAS•Industrials•Special Industry Machinery, Nec
Why is ACLS up today? It is at $137.53 (+0.63%), and our scanner flagged it 21 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment ACLS spikes, and full due diligence on ACLS — key stats, earnings, dilution and insider activity. Free.
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Key Stats
- Price
- $137.53
- Change today
- +0.63%
- Previous close
- $136.67
- 52-week range
- $73.60 – $193.78
- Market cap
- $4.20B
- Total held
- 0.48%
- Tradeable float
- 30.6M 100% of shares · after <1% insiders + institutional n/a
- Short interest
- 1.8M ▼ -7% vs prior · as of 2026-07-15
- Short % of float
- 5.8%
- Days to cover
- 3.1d
- Avg daily volume
- 652K
- Sector
- Industrials
- Industry
- Special Industry Machinery, Nec
- Exchange
- XNAS
- 5m
- 2.0x
- 15m
- 3.6x
- 1h
- 3.1x
- 1D
- 0.2x
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Why is $ACLS up today?
Here is the latest on ACLS from our scanner (live price and day move above). Fresh from the SEC: AXCELIS TECHNOLOGIES INC: Axcelis Announces Financial Results for Second Quarter 2026. A material company disclosure like this is often the real catalyst behind a move of this size.
Likely catalystAxcelis Announces Financial Results for Second Quarter 2026Reported Gross Margin of 42.4%, and Non-GAAP Gross Margin of 42.7%Reported Operating Margin of 9.4% and Non-GAAP Operating Margin of 14.7%Reported Diluted Earnings Per Share of $0.75, and Non-GAAP Diluted Earnings Per Share of $1.06, from the latest SEC filing. Read it →Analyst data via Nasdaq. Not investment advice.
Insiders
15 buys, 30 sells last 3 months (16/48 over 12 months)Show 12 recent transactionsMinimize 12 recent transactions
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
Ryzhik David Officer | Sold (automatic/other) | -221 | sold 2.2% | 10K | $32K at $145.01 | Jul 15, 26 |
Ryzhik David Officer | Sold (automatic/other) | -76 | sold 0.8% | 10K | $13K at $176.84 | Jun 16, 26 |
Blumenstock Gerald M Officer | Sold (automatic/other) | -506 | sold 2.5% | 20K | $97K at $191.60 | Jun 15, 26 |
Sayiner Necip Director | Sold (automatic/other) | -2K | sold 18% | 7K | $250K at $157.44 | Jun 3, 26 |
Mahoney Robert John Officer | Sold (automatic/other) | -1K | sold 7.4% | 14K | $179K at $155.24 | Jun 2, 26 |
Sutton Todd Officer | Sold (automatic/other) | -2K | sold 24% | 6K | $320K at $159.99 | May 27, 26 |
Evans Eileen Officer | Sold (automatic/other) | -926 | sold 2.9% | 31K | $144K at $155.51 | May 22, 26 |
St Dennis Thomas Director | Sold (automatic/other) | -900 | sold 4.8% | 18K | $140K at $155.37 | May 22, 26 |
Blumenstock Gerald M Officer | Sold (automatic/other) | -1K | sold 5.4% | 20K | $177K at $152.70 | May 21, 26 |
Tatnall Christopher Officer | Sold (automatic/other) | -1K | sold 4.0% | 28K | $175K at $149.75 | May 20, 26 |
Kurtzweil John T Director | Sold (automatic/other) | -4K 0.01% of company | sold 9.6% | 33K | $486K at $138.79 | May 19, 26 |
Graves Gregory B Director | Sold (automatic/other) | -3K 0.01% of company | sold 37% | 5K | $456K at $141.41 | May 19, 26 |
Recent Form-4 filings via Nasdaq. Open-market buys are the signal worth watching. Grants and automatic (10b5-1) sells are routine. “% of position” is the share of that insider’s own holding the trade moved. Not investment advice.
Dilution watch
Recent offeringRecent priced share offering — a one-time sale that has already completed (not ongoing). If $ACLS runs, these filings show who may be positioned to sell new or newly-registered shares into the move.
Sourced from SEC EDGAR filings (last 9 months); terms read straight from the filing text where available. Ongoing = an at-the-market (ATM) program still selling over time or a live shelf, so it can keep diluting; Completed = a one-time priced sale that already finished. A shelf (S-3) stays effective ~3 years. Form type signals dilution capacity, not an exact share count, and we can't confirm how much of a shelf or ATM remains unused. Not investment advice.
$ACLS Sentiment
BullishBlend of news sentiment, today’s move, and community votes. Not investment advice.
$ACLS Activity
News, unusual-volume alerts, AI-trader trades and community chatter — the whole story, newest first.




Stocks similar to ACLS
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ACLS stock FAQ
Why is $ACLS up today?
Here is the latest on ACLS from our scanner (live price and day move above). Fresh from the SEC: AXCELIS TECHNOLOGIES INC: Axcelis Announces Financial Results for Second Quarter 2026. A material company disclosure like this is often the real catalyst behind a move of this size.
What is the ACLS stock price today?
ACLS last traded at $137.53, up 0.63% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
Where can I see live ACLS alerts?
The ACLS Live Alerts panel on this page streams real-time unusual volume (RVOL), momentum, halt and 200-EMA alerts from our scanner the moment they fire. Our scanner has flagged ACLS 21 times in the last 30 days.
What exchange is ACLS on?
ACLS (Axcelis Technologies Inc) trades on XNAS, with a market cap of about $4.20B in the SPECIAL INDUSTRY MACHINERY, NEC sector.
Is ACLS good for day trading?
That depends on your strategy and risk. Day traders look for volume, volatility and a clear trend. Use the live chart, RVOL alerts and 200-EMA context on this page to judge ACLS for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.