ACLSAxcelis Technologies Inc

CSNasdaq (XNAS)·USD

Identity

Security key: 11251
Ticker: ACLS
Type: CS — Common Stock
Exchange: Nasdaq(XNAS)
Venue group: NASDAQ
Operating MIC: XNAS
Market: stocks
Locale: us
Currency: USD
Listed: 2000-07-11
Round lot: 100
Active: Yes
Last seen in a load: 2026-08-14 20:49
Vendor updated: 2026-08-13 06:09
Ticker root / suffix: ACLS

Detail

Enriched 2026-08-14 20:47

Market cap: $4,389,494,846.46
Shares outstanding (class): 30,881,489
Shares outstanding (weighted): 30,881,489
SIC: 3559 SPECIAL INDUSTRY MACHINERY, NEC
Employees: 1,465
Location: BEVERLY, MA
Homepage: https://www.axcelis.com
Description: 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 parts, equipment upgrades, maintenance services, and customer training. Geographically, the group has a business presence in North America, Asia Pacific, and Europe, of which key revenue is derived from the Asia Pacific.

Market cap and share counts drift.

Funds holding this security

171 funds · 175 positions · $848.98M reported value, as of 2026-03-31

All holders →

Fund	Ticker	Position value	% of fund	Balance	Match
iShares Core S&P Small-Cap ETF iShares Trust	IJR	$171.56M	0.19%	1,843,104 NS	FIGI
VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS	VTI	$91.58M	0.00%	983,900 NS	FIGI
iShares Russell 2000 ETF iShares Trust	IWM	$70.89M	0.10%	761,601 NS	FIGI
VANGUARD SMALL-CAP INDEX FUND VANGUARD INDEX FUNDS	VB	$65.99M	0.04%	709,008 NS	FIGI
Small Cap Value Fund American Century Capital Portfolios, Inc.	—	$43.28M	1.36%	465,000 NS	FIGI
VANGUARD SMALL-CAP VALUE INDEX FUND VANGUARD INDEX FUNDS	VBR	$41.98M	0.07%	451,046 NS	FIGI
VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS	VXF	$31.88M	0.04%	342,467 NS	FIGI
State Street(R) SPDR(R) Portfolio S&P 600(TM) S… SPDR SERIES TRUST	SPSM	$25.84M	0.19%	277,570 NS	FIGI
iShares Russell 2000 Value ETF iShares Trust	IWN	$22.96M	0.18%	246,711 NS	FIGI
T. Rowe Price Integrated U.S. Small-Cap Growth … T. ROWE PRICE INTEGRATED EQUITY FUNDS, INC.	—	$19.58M	0.24%	210,358 NS	FIGI
VANGUARD TAX-MANAGED SMALL-CAP FUND VANGUARD TAX-MANAGED FUNDS	—	$18.07M	0.19%	194,154 NS	FIGI
JNL Multi-Manager Small Cap Value Fund JNL Series Trust	—	$17.48M	1.04%	187,824 NS	FIGI
Allspring Special Small Cap Value Fund ALLSPRING FUNDS TRUST	—	$16.32M	0.52%	175,300 NS	FIGI
iShares S&P Small-Cap 600 Growth ETF iShares Trust	IJT	$15.81M	0.24%	169,897 NS	FIGI
Boston Trust Walden Small Cap Fund Boston Trust Walden Funds	—	$13.64M	1.38%	146,510 NS	FIGI

How positions resolve to the securities master. FIGI_COMPOSITE is exact identifier equality — both sides got the FIGI from Bloomberg. TICKER is a narrow fallback used only where the master row carries no FIGI at all (2,389 rows do not, disproportionately Irish-domiciled US listings like LIN and ACN). Roughly 22% of all positions resolve to the master.

Funds holding this security

Identifiers

master.security_identifier

TICKERACLS
FIGI_COMPOSITEBBG000DW34S2
FIGI_SHARE_CLASSBBG001SF8W86
CIK0001113232
ISINUS0545402085
Resolved through OpenFIGI from a holdings ISIN, not supplied by the securities vendor.

Identifiers

Classification

classification.v_security_classification

Asset class: Equity
Sector: Information Technology
Industry: Semiconductors
Source: LLMunreviewed
Self-reported confidence: 0.9
Model: deepseek
Rationale: Axcelis Technologies makes ion implantation equipment for semiconductor manufacturing, so it is classified under technology and semiconductors.

Classifications are unreviewed model output. All 5,771 assignments carry source = LLM and is_reviewed = false. Confidence is the model’s own estimate and is not calibrated — it clustered at 0.90–0.98 across the whole first pass, including rows that later proved wrong. Use it to order a review queue, not as a probability. Two share classes of one issuer can disagree.

Classification

Fund data

Not linked to a fund series.

Either this is not a fund, or it is one the SEC share-class snapshot cannot reach — commodity trusts and notes have no series ID at all.