Arqit Quantum Inc (ARQQ)

Ordinary Shares

Sell: $42.42|Buy: $43.56|Change: 1.93 (4.88%)

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Open

$40.56

Previous close

$39.56

Trade high

$41.635

Volume

1,176,098

Year high

$62.00

Year low

$5.2172

Dividend yield

–

Market capitalisation

$634.47 mn

P/E ratio

1.67

ISIN

KYG0567U1278

This share can be held in a Dealing account Stocks and shares ISA Lifetime ISA JISA SIPP

Share price

Performance 17/10/2025

1D | 1M | 3M | 1Y | 3Y ann | 5Y ann | 10Y ann

	Total return (%)
Arqit Quantum Inc	+ 4.88
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Company profile

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 - evenan 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.

Sector

Technology

AJ Bell Management Limited (company number 03948391), AJ Bell Securities Limited (company number 02723420) and AJ Bell Asset Management Limited (company number 09742568) are authorised and regulated by the Financial Conduct Authority. All companies are registered in England and Wales at 4 Exchange Quay, Salford Quays, Manchester M5 3EE. See website for full details. AJ Bell procures the provision of the Morningstar Licensed Tools on an “as is” basis and does not guarantee the performance of or accept liability for the Licensed Tools. To the maximum extent permitted by law, AJ Bell excludes liability for the Licensed Tools, including liability for any failure, interruption, delay or defect in the performance of any Licensed Tool, unless it arises as a direct result of the negligence of AJ Bell.