Stock Analysis
Data Source: SEC EDGAR 13F
Updated Hourly

Axcelis Technologies Inc (ACLS)

372 + Investors. Track Smart Money conviction in ACLS. See who's accumulating, reducing, or initiating positions.

Current Price
-- USD
Analyst Target
-- (0 analysts)
Upside
0.00%
Net Flow Q/Q
↑ +6
Streak
4Q ▲
Buyers last Q
47%

Smart Money Signals — ACLS

Based on 374 hedge funds · latest filing: 2026 Q1 · updated quarterly

📈

Buying streak — 4 quarters in a row

last 6Q
For 4 consecutive quarters, more hedge funds added ACLS than sold it. That's a consistent pattern of professional buying — not a one-time trade. When institutions keep buying quarter after quarter, it usually means they see a multi-year opportunity, not just a short-term momentum flip.
📊

High ownership — 93% of 3.0Y peak

93% of all-time peak
374 funds currently hold this stock — 93% of the 3.0-year high of 404 funds (reached 2023 Q3). Ownership is elevated but not yet at maximum concentration. Room to grow, but watch if the trend reverses.
🚀

Fast accumulation — +26% more funds vs a year ago

fund count last 6Q
+76 new funds entered over the past year (+26% YoY). That's a rapid rush of institutional money. Fast accumulation often signals a major thesis — but it also means the stock could fall quickly if that thesis breaks.
🟠

More sellers than buyers — 47% buying

172 buying194 selling
Last quarter: 194 funds reduced or exited vs 172 that bought or added. When more than half of active funds are selling, it's a caution flag — especially if the stock price hasn't moved down yet.
➡️

Steady new buyers — ~67 new funds per quarter

new funds entering per quarter
Funds opening this position for the first time: 68 → 77 → 67 → 67. A stable flow of new institutional buyers suggests ongoing interest without signs of either acceleration or slowdown.
🔒

57% of holders stayed for 2+ years

■ 57% conviction (2yr+) ■ 20% medium ■ 23% new
215 out of 374 hedge funds have held ACLS for over 2 years without selling. Long-term investors are generally harder to shake out during market stress, creating a stable ownership base that limits the risk of sudden capitulation.
➡️

Steady discovery — ~67 new funds/quarter

48 → 68 → 77 → 67 → 67 new funds/Q
New funds entering each quarter: 68 → 77 → 67 → 67. Consistent flow of new institutional buyers without clear acceleration or slowdown.
🏛️

Veteran-anchored — 64% veterans vs 26% newcomers

■ 64% veterans ■ 10% 1-2yr ■ 26% new
Entry-cohort mix of 384 holders: 247 (64%) are 2+ year veterans, 39 entered 1–2 years ago, and 98 (26%) joined within the past year. A veteran-weighted cap table skews toward institutional memory over fresh momentum.
🏆

Elite ownership — 43% AUM from top-100 funds

43% from top-100 AUM funds
50 of 370 holders are among the 100 largest funds by AUM, controlling 43% of total institutional value in ACLS. When the biggest players dominate the cap table, it signifies deep institutional support — since mega-funds deploy the most rigorous due diligence and capital.
3.6
out of 10
Low Exit Risk
Exit risk score 3.6/10 — low institutional crowding. Ownership is below peak levels, holder base is relatively sticky, and buying momentum is positive.

Methodology note: these Smart Money cards use consecutive 13F disclosure snapshots, not trade-by-trade execution data. "Buying", "selling", "new holders", and "trimmed" refer to quarter-over-quarter changes in reported holders, aggregate shares, or disclosed position values between filings. They are useful for ownership regime analysis and crowding, but they do not imply exact trade timing on the filing date.

Institutional Sentiment Summary — ACLS

In 2026 Q1, 172 hedge funds were net buyers of ACLS (67 opened a new position, 105 added to an existing one), while 194 reduced or exited (133 trimmed, 61 sold completely) — a 47% buyer ratio, indicating roughly balanced activity. This marks 4 consecutive quarters of net institutional buying — a persistent conviction signal. 43% of total institutional value in ACLS is held by top-100 AUM funds, reflecting elite-tier ownership quality. Net fund flow last quarter: +6 funds (more new holders than closures). Total institutional holders: 374.

Hedge Fund Ownership: ACLS

How many hedge funds hold ACLS — quarterly history vs. share price
Quarterly hedge fund ownership of ACLS vs. share price

Market Analysis: ACLS

Analyst Price Targets

Avg. Price Target
--

Analyst Recommendations

Stock Performance

Real-time

Company Profile: ACLS

-- --

Institutional ownership data sourced from SEC EDGAR Form 13F-HR filings.

Is It Too Late to Buy Axcelis Technologies Inc (ACLS) Based on Hedge Fund 13F Filings?

Signal Freshness measures how much ACLS has moved relative to its sector benchmark (XLK) since the 2026 Q1 13F filing. A stock that has barely outrun its sector is still a relatively fresh entry point — the fund's thesis has not yet been priced in by the broader market.

Since Quarter End March 31, 2026 · 90d ago
ACLS
+89.2%
XLK
+39.7%

ACLS outperformed XLK by +49.5% since March 31, 2026.

Since 13F Filing Date May 15, 2026 · 45d ago
ACLS
+13.5%
XLK
+5.3%

Since the filing became public, ACLS outperformed XLK by +8.2% .

Interpretation: The stock is tracking its sector benchmark closely. The signal remains fresh and the entry point is still near the fund's implied reference. Learn more →

Smart Money Signal ?
Limited Smart Money Interest

No strong consensus or elite conviction detected among institutional holders.

33 top-rated funds 1 high-conviction
Consensus
6.6
/ 10
breadth
×
Elite
1.4
/ 10
conviction
Hedge Fund Positioning: ACLS
372 + Investors

Track Smart Money conviction in ACLS. See who's accumulating, reducing, or initiating positions.

Metric All 13F Filers (2026 Q1) Prior (2025 Q4) Change
Funds Holding 372 368 1.09%
13F Shares 33M 32M 3.15%
Total Value $2.94B $2.52B 16.48%
New Positions 66 67 -1
Increased Positions 101 120 -19
Closed Positions 62 56 +6
Reduced Positions 131 120 +11
Total Calls 7 8 -12.5%
Total Puts 6 5 20.0%
PUT/CALL Ratio 0.86 0.62 Neutral

Statistics: ACLS

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Short % of Float --

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Institutional Holders (2026 Q1)

372 + investors

Explore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in ACLS. Verified SEC 13F-HR filings.

QUARTER:
Top 25 ACLS holders by conviction (% of portfolio weight) — 2026 Q1 · Source: SEC Form 13F
# Investor % of Portfolio Shares Mkt Value
1 Reinhart Partners, LLC. 4.44% 1,657,745 $154.3M
2 QSM Asset Management Ltd 2.27% 51,571 $4.6M
3 Penbrook Management LLC 0.85% 12,095 $1.1M
4 Firsthand Capital Management, Inc. 0.79% 4,000 $372K
5 Illumine Investment Management, LLC 0.73% 10,163 $946K
6 Globeflex Capital L P 0.63% 44,455 $4.1M
7 Yakira Capital Management, Inc. 0.62% 22,619 $2.1M
8 Sagefield Capital LP 0.55% 82,238 $7.7M
9 Eagle Bay Advisors LLC 0.51% 6,200 $577K
10 Corient IA LLC 0.44% 5,000 $465K
11 Old West Investment Management, LLC 0.43% 42,481 $4.0M
12 Hussman Strategic Advisors, INC. 0.42% 21,000 $2.0M
13 Isthmus Partners, LLC 0.38% 39,357 $3.7M
14 Portolan Capital Management, LLC 0.38% 77,168 $7.2M
15 Kennedy Capital Management LLC 0.35% 178,016 $16.6M
16 KERR FINANCIAL PLANNING Corp 0.35% 2,150 $284K
17 Emerald Investment Advisers, LLC 0.33% 39,764 $3.7M
18 Segall Bryant & Hamill, LLC 0.32% 227,697 $19.6M
19 Boston Trust Walden Corp 0.29% 378,525 $35.2M
20 MOKAN Wealth Management Inc. 0.29% 6,995 $651K
21 Emerald Advisers, LLC 0.28% 96,238 $9.0M
22 Inspire Advisors, LLC 0.22% 29,411 $2.7M
23 Emerald Mutual Fund Advisers Trust 0.21% 47,412 $4.4M
24 Needham Investment Management LLC 0.20% 42,500 $4.0M
25 Peterson Wealth Services 0.18% 7,889 $734K
Investor Ownership
History 		% of Portfolio Prev % Rank Conviction Avg Buy Price 13F Score™ 3Y / 7Y Sell Timing Shares Mkt Value Change Change % Source Quarter Filed

Frequently Asked Questions — Axcelis Technologies Inc (ACLS)

What does the Smart Money Trend signal show for ACLS?

Buying streak — 4 quarters in a row: For 4 consecutive quarters, more hedge funds added ACLS than sold it. That's a consistent pattern of professional buying — not a one-time trade. When institutions keep buying quarter after quarter, it usually means they see a multi-year opportunity, not just a short-term momentum flip.

What is the institutional breadth score for ACLS?

More sellers than buyers — 47% buying: Last quarter: 194 funds reduced or exited vs 172 that bought or added. When more than half of active funds are selling, it's a caution flag — especially if the stock price hasn't moved down yet.

What is the fund quality score for ACLS holders?

Elite ownership — 43% AUM from top-100 funds: 50 of 370 holders are among the 100 largest funds by AUM, controlling 43% of total institutional value in ACLS. When the biggest players dominate the cap table, it signifies deep institutional support — since mega-funds deploy the most rigorous due diligence and capital.

How long have hedge funds held ACLS?

57% of holders stayed for 2+ years: 215 out of 374 hedge funds have held ACLS for over 2 years without selling. Long-term investors are generally harder to shake out during market stress, creating a stable ownership base that limits the risk of sudden capitulation.

Is it too late to buy Axcelis Technologies Inc (ACLS) following the 2026 Q1 hedge fund 13F filings?

As of today, ACLS has moved +13.5% since the 2026 Q1 13F filing date (May 15, 2026), compared to +5.3% for the XLK sector ETF — an outperformance of +8.2%. Since the quarter end (March 31, 2026), ACLS has gained +89.2% vs +39.7% for XLK. The stock is tracking its sector benchmark closely. The signal remains fresh and the entry point is still near the fund's implied reference.

Where does this institutional ownership data come from?

All holdings data is sourced from SEC Form 13F filings, which institutional investment managers with over $100 million in assets are required to submit quarterly. Data is parsed directly from SEC EDGAR.

Disclaimer: The information on this page is for informational purposes only and does not constitute investment advice, a recommendation, or an offer to buy or sell any security. Institutional holdings data is sourced from SEC Form 13F filings and reflects positions as of the filing date. Past performance of any fund or portfolio is not indicative of future results. 13Foresight is not a registered investment adviser. Always conduct your own due diligence before making investment decisions.

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