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Arqit Quantum

ARQQ

Market cap $318M

18.27 USD

+1.98

12.15%

At close Updated Sep 15, 4:00 PM EDT

Pre-market

After hours

18.10

-0.17

0.93%

1 day

12.15%

5 days

-17.74%

1 month

-24.97%

3 months

1.95%

6 months

30.5%

Year to date

-25.55%

1 year

-44.9%

5 years

-94.85%

10 years

-93.53%

About: 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.

Employees: 91

Technology Software - Infrastructure

News

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Sentiment 3-Months

Positive 0%

Neutral 100%

Negative 0%

Stock Picks From Seeking Alpha's August 2026 New Analysts

In August, we welcomed 25 new analysts to Seeking Alpha. This article showcases their stock picks and investment strategies. Analysts provided ratings from Strong Sell to Strong Buy, with detailed justifications based on market trends, company fundamentals, and sector-specific challenges. Key investment theses include bullish views on CTO Realty, Allogene Therapeutics, NanoXplore, Modine, and 3i Group.

Stock Picks From Seeking Alpha's August 2026 New Analysts

Arqit, Es'hailSat and AIEE Demonstrate Quantum-Safe Satellite Security

LONDON and DOHA, Sept. 01, 2026 (GLOBE NEWSWIRE) -- Arqit Quantum Inc. (NASDAQ: ARQQ, ARQQW), a global leader in quantum-safe encryption, Es'hailSat - the Qatar Satellite Company - a world-class satellite operator and service provider with coverage spanning the MENA region - and Advanced International Electronic Equipment Company (AIEE), a specialist systems integrator for secure communications infrastructure, today announced the successful demonstration of quantum-safe security across operational satellite communications infrastructure.

Arqit, Es'hailSat and AIEE Demonstrate Quantum-Safe Satellite Security

Quantum Computing Is Raising the Stakes for Cybersecurity: 5 Stocks to Watch

In the near future, the mathematical horizon where quantum computing could break all traditional encryption is transitioning from a theoretical debate into a real corporate compliance deadline. Quantum advances are narrowing some estimates of the resources required to threaten current cryptographic systems, potentially bringing that risk closer than many sectors and market participants expected.

Quantum Computing Is Raising the Stakes for Cybersecurity: 5 Stocks to Watch

nLighten and Arqit prove you can use the public cloud without giving up sovereignty

LONDON and AMSTERDAM, July 14, 2026 (GLOBE NEWSWIRE) -- nLighten, a European edge data centre platform, and Arqit Quantum Inc. (NASDAQ: ARQQ, ARQQW) a global leader in PQC migration and quantum-safe encryption, today announced the successful completion of a joint proof of concept (POC), demonstrating how organisations can use public cloud services while maintaining control over sensitive data and cryptographic assets. For customers, the benefit is simple: they no longer have to choose between innovation and control.

nLighten and Arqit prove you can use the public cloud without giving up sovereignty

Arqit Quantum: I See A Turnaround In The Books (Rating Upgrade)

I am upgrading Arqit Quantum Inc. from Sell to Buy after what I see as tangible proof of scale and a major Tier-1 commercial deployment. ARQQ delivered 829% year over year revenue growth in H1 FY26, with contract wins accelerating and a shift toward multi-year recurring telecom and government deals. Sparkle's commercial launch of Quantum-Safe Interconnect across 20 Equinix data centers validates ARQQ's technology and moves it from PoC to commercial availability.

Arqit Quantum: I See A Turnaround In The Books (Rating Upgrade)

Arqit Quantum Inc. (ARQQ) Q2 2026 Earnings Call Transcript

Arqit Quantum Inc. (ARQQ) Q2 2026 Earnings Call Transcript

Arqit Quantum Inc. (ARQQ) Q2 2026 Earnings Call Transcript

Arqit Quantum H1 Earnings Call Highlights

Arqit Quantum NASDAQ: ARQQ reported higher first-half fiscal 2026 revenue and said it is seeing increased commercial activity as governments, telecom operators and defense-related customers evaluate post-quantum cybersecurity needs.

Arqit Quantum H1 Earnings Call Highlights

Arqit Quantum Inc. Announces Financial Results for First Half of Fiscal Year 2026

LONDON, May 21, 2026 (GLOBE NEWSWIRE) -- Arqit Quantum Inc. (Nasdaq: ARQQ) (“Arqit” or the “Company”), a global leader in quantum-safe encryption, announces financial results for the first half of fiscal year 2026. Consistent with management's preliminary assessment of the expected range of revenue, which was announced 10 April 2026, reported revenue for the first half of fiscal year 2026 was $623,000 as of 31 March 2026.

Arqit Quantum Inc. Announces Financial Results for First Half of Fiscal Year 2026

Arqit Quantum Inc. Sets First Half 2026 Earnings Conference Call for Thursday, May 21, 2026 at 11:00 a.m. ET

LONDON, May 11, 2026 (GLOBE NEWSWIRE) -- Arqit Quantum Inc. (“Arqit”), a leader in quantum safe encryption, announces it will report financial results for the six months ending March 31, 2026 on Thursday, May 21, 2026.

Arqit Quantum Inc. Sets First Half 2026 Earnings Conference Call for Thursday, May 21, 2026 at 11:00 a.m. ET

Tomorrow Street, a joint venture between Vodafone and Luxembourg's technology incubator, chooses Arqit to add Quantum Security Solutions to its portfolio

Tomorrow Street, a joint venture between Vodafone and Luxembourg's technology incubator, chooses Arqit to add Quantum Security Solutions to its portfolio

Tomorrow Street, a joint venture between Vodafone and Luxembourg's technology incubator, chooses Arqit to add Quantum Security Solutions to its portfolio

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