13FPulse
AC

ACLS AXCELIS TECHNOLOGIES INC

2026Q2 · CUSIP 054540208 · Semi Equipment · Sector: Semiconductors

Piling in

Net holder growth ranks near the top of the market

Funds that own it
429
Institutions that reported holding it to the SEC
Net increase in holders
+55
Last quarter 374 → now 429
How unusual is that
Top 5%
Stronger buying than 95% of US stocks
What the filings say, in one paragraph

429 funds held ACLS at the end of 2026Q2, up 55 from the quarter before. That is stronger buying than 95.4% of US stocks — among the most piled-into names this quarter. On the business itself, revenue over the last 12 months was $866M(YoY -3.4%), the P/E is 37.0x, return on equity is 8.7%. ACLS has had 19 buying rushes in its history, and the price moved +21.7% on average over the six months after (that is the raw price move, not how much it beat the market by). It sits in the Semiconductors sector, tagged Semi Equipment.

How many funds owned it, quarter by quarter

Bars = net change in institutional holders, positive (green) or negative (red). Line = total institutional holders.

2016Q3: holders=79 2016Q4: holders=86 2017Q1: holders=99 2017Q2: holders=128 2017Q3: holders=144 2017Q4: holders=175 2018Q1: holders=161 2018Q2: holders=163 2018Q3: holders=153 2018Q4: holders=137 2019Q1: holders=146 2019Q2: holders=133 2019Q3: holders=143 2019Q4: holders=136 2020Q1: holders=136 2020Q2: holders=171 2020Q3: holders=174 2020Q4: holders=169 2021Q1: holders=190 2021Q2: holders=188 2021Q3: holders=202 2021Q4: holders=255 2022Q1: holders=291 2022Q2: holders=277 2022Q3: holders=288 2022Q4: holders=327 2023Q1: holders=377 2023Q2: holders=406 2023Q3: holders=421 2023Q4: holders=421 2024Q1: holders=385 2024Q2: holders=392 2024Q3: holders=367 2024Q4: holders=325 2025Q1: holders=304 2025Q2: holders=327 2025Q3: holders=360 2025Q4: holders=372 2026Q1: holders=374 2026Q2: holders=429 -64 -32 +0 +32 +64 71261451 16Q317Q419Q120Q221Q322Q424Q125Q226Q2 Net change in holders (bars) Total funds holding (line)

What happened after each past buying rush 19 times in its history

Quarter of the rush How unusual then Price, next 3 months Price, next 6 months
2026Q2 Top 5%
2025Q3 Top 10% +0.1% +85.7%
2025Q2 Top 20% +1.0% +1.6%
2023Q3 Top 20% -17.9% -15.4%
2023Q2 Top 10% -16.8% -27.9%
2023Q1 Top 5% +16.1% +0.0%
2022Q4 Top 10% +13.5% +29.2%
2022Q3 Top 20% +63.9% +90.3%

These are the raw price moves, not how much it beat the market by. Compare them against the market over the same months — in a strong bull market almost everything is up.

Show all the numbers (large funds, value held, options…) ▾
Of them, large funds
191
Change in large funds
+29
Total value they hold
$5.8B
Funds buying for the first time
113
Funds that sold out entirely
58
Price change that quarter
-24.3%
Funds holding puts (bearish)
9
Funds holding calls (bullish)
10

These are for people who want to dig. Skip them if they do not mean anything to you — the three numbers above are enough.

8,697 institutions have filed for this quarter. 13F permits late filing and a small number arrive in the weeks after the deadline, so the holder counts and changes below may tick up.

Fundamentals

PE (TTM)
37.0
EPS (TTM)
$2.99
EPS YoY
-38.9%
Revenue (TTM)
$0.9B
Revenue YoY
-3.4%
Net margin
10.7%
ROE
8.7%
Debt ratio
23.2%
FCF (TTM)
$66M
Dividend (TTM)
No dividend
Quarterly Revenue & EPS
2021-09-30: EPS 0.81 2021-12-31: EPS 1.04 2022-03-31: EPS 1.22 2022-06-30: EPS 1.32 2022-09-30: EPS 1.21 2022-12-31: EPS 1.71 2023-03-31: EPS 1.43 2023-06-30: EPS 1.86 2023-09-30: EPS 1.99 2023-12-31: EPS 2.15 2024-03-31: EPS 1.57 2024-06-30: EPS 1.55 2024-09-30: EPS 1.49 2024-12-31: EPS 1.54 2025-03-31: EPS 0.88 2025-06-30: EPS 0.98 2025-09-30: EPS 0.83 2025-12-31: EPS 1.11 2026-03-31: EPS 0.30 2026-06-30: EPS 0.75 0M 155M 310M $M 0.00 1.18 2.37 2016201720182019202020212022202320242025202606/26 Revenue EPS

Quarterly figures, revenue up to 10 years back; EPS split-adjusted, early quarters hidden when not calibrable

P/E (TTM) over time
4Y median 17 9 30 51 20222023202420252026

P/E = close around day 47 after quarter-end ÷ TTM EPS then; this is a consistent valuation date, not the company’s actual filing date; loss quarters hidden

Quarterly free cash flow
-17M51M119M 20162017201820192020202120222023202420252026
Latest quarter $16M (2026-03-31)

FCF = operating cash flow − capex, computed from SEC XBRL; banks/insurers have no standard cash-flow structure and are hidden

As of 2026-06-30 · SEC filings (XBRL)

Email me the next update

2026 Q3 holdings are due 2026-11-16. We will email you when the refreshed lists are live.