ACMRACM Research, Inc. Class A Common Stock

CSNasdaq (XNAS)·USD

Identity

Security key: 11255
Ticker: ACMR
Type: CS — Common Stock
Exchange: Nasdaq(XNAS)
Venue group: NASDAQ
Operating MIC: XNAS
Market: stocks
Locale: us
Currency: USD
Listed: 2017-11-03
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: ACMR

Detail

Enriched 2026-08-14 20:47

Market cap: $5,659,693,666.96
Shares outstanding (class): 61,233,064
Shares outstanding (weighted): 69,649,196
SIC: 3559 SPECIAL INDUSTRY MACHINERY, NEC
Employees: 2,513
Location: FREMONT, CA
Homepage: https://www.acmr.com
Description: ACM Research Inc supplies capital equipment developed for the semiconductor industry. The company focuses on developing differentiated process solutions that enable effective particle removal, uniform material deposition, and reliable process control for the fabricators of integrated circuits. Its product offerings include wet-cleaning, plating, furnace, PECVD, track, and other front-end processing equipment. Additionally, it develops, manufactures, and sells a range of packaging equipment to wafer assembly and packaging customers. Geographically, the company generates maximum revenue from its customers in Mainland China, and the rest from other regions.

Market cap and share counts drift.

Funds holding this security

145 funds · 147 positions · $455.49M 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	$125.84M	0.14%	3,198,009 NS	FIGI
VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS	VTI	$63.56M	0.00%	1,615,253 NS	FIGI
iShares Russell 2000 ETF iShares Trust	IWM	$49.44M	0.07%	1,256,404 NS	FIGI
VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS	VXF	$23.42M	0.03%	595,052 NS	FIGI
State Street(R) SPDR(R) Portfolio S&P 600(TM) S… SPDR SERIES TRUST	SPSM	$18.95M	0.14%	481,645 NS	FIGI
iShares S&P Small-Cap 600 Growth ETF iShares Trust	IJT	$18.09M	0.28%	459,607 NS	FIGI
iShares Russell 2000 Value ETF iShares Trust	IWN	$17.35M	0.14%	440,791 NS	FIGI
Fidelity Enhanced Small Cap ETF Fidelity Covington Trust	FESM	$15.03M	0.37%	381,867 NS	FIGI
VANGUARD TAX-MANAGED SMALL-CAP FUND VANGUARD TAX-MANAGED FUNDS	—	$12.31M	0.13%	312,715 NS	FIGI
State Street(R) SPDR(R) S & P 600(TM) Small Cap… SPDR SERIES TRUST	SLYG	$11.06M	0.28%	281,049 NS	FIGI
JNL Multi-Manager Small Cap Value Fund JNL Series Trust	—	$8.45M	0.50%	214,832 NS	FIGI
First Trust Nasdaq Semiconductor ETF First Trust Exchange-Traded Fund VI	FTXL	$5.59M	0.38%	142,001 NS	FIGI
Dodge & Cox Emerging Markets Stock Fund Dodge & Cox Funds	—	$4.57M	0.42%	116,092 NS	FIGI
T. Rowe Price New Horizons Fund, Inc. T. ROWE PRICE NEW HORIZONS FUND, INC.	—	$4.11M	0.03%	104,433 NS	FIGI
JPMorgan Small & Mid Cap Enhanced Equity ETF J.P. Morgan Exchange-Traded Fund Trust	JMEE	$3.38M	0.14%	85,802 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

TICKERACMR
FIGI_COMPOSITEBBG00HPSG933
FIGI_SHARE_CLASSBBG00HPSG942
CIK0001680062
ISINUS00108J1097
Resolved through OpenFIGI from a holdings ISIN, not supplied by the securities vendor.

Identifiers

Classification

classification.v_security_classification

Asset class: Equity
Sector: Industrials
Industry: Machinery
Source: LLMunreviewed
Self-reported confidence: 0.95
Model: deepseek
Rationale: ACM Research is a common stock in special industry machinery, matching the Industrials sector and Machinery industry.

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.