ARQQArqit Quantum Inc. Ordinary Shares

CSNasdaq (XNAS)·USD

Identity

Security key: 11909
Ticker: ARQQ
Type: CS — Common Stock
Exchange: Nasdaq(XNAS)
Venue group: NASDAQ
Operating MIC: XNAS
Market: stocks
Locale: us
Currency: USD
Listed: 2021-09-07
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: ARQQ

Detail

Enriched 2026-08-14 20:47

Market cap: $412,785,188.92
Shares outstanding (class): 15,651,859
Shares outstanding (weighted): 17,402,411
SIC: —
Employees: 91
Location: —
Homepage: https://www.arqit.uk
Description: Arqit Quantum Inc is a cybersecurity company that has pioneered a symmetric key agreement technology that makes the communications links of any networked device or data at rest secure against current and future forms of cyber attack - even an attack from a quantum computer. The company delivers its symmetric key agreement technology via its product SKA-Platform. The firm operates in one segment, that is, the provision of cybersecurity services. The company operates and generates its revenue from UK.

Market cap and share counts drift.

Funds holding this security

4 funds · 4 positions · $19.44M reported value, as of 2026-03-31

All holders →

Fund	Ticker	Position value	% of fund	Balance	Match
Defiance Quantum ETF ETF Series Solutions	QTUM	$19.24M	0.59%	1,452,311 NS	TICKER
WisdomTree Quantum Computing Fund WisdomTree Trust	WQTM	$144.7K	0.54%	10,919 NS	TICKER
State Street(R) SPDR(R) S&P(R) International Sm… SPDR INDEX SHARES FUNDS	GWX	$55.4K	0.01%	4,184 NS	TICKER
Blackstone Alternative Multi-Strategy Fund Blackstone Alternative Investment Funds	—	-$1.5K	-0.00%	-110 NS	TICKER

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.

This match is a candidate, not a mapping. N-PORT tickers are filer-entered free text and collide with delisted and foreign symbols. Only 13% of positions carry a ticker at all. Good enough to ask which funds report holding a symbol; not good enough to build exposure reporting on. Prefer the ISIN-resolved link, which is marked FIGI_COMPOSITE.

Funds holding this security

Identifiers

master.security_identifier

TICKERARQQ
CIK0001859690
ISINKYG0567U1278
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: Software
Source: LLMunreviewed
Self-reported confidence: 0.7
Model: deepseek
Rationale: Arqit Quantum provides quantum encryption software and services, fitting the technology sector and software 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.