Arqit Quantum Inc. is a London-based cybersecurity company specializing in quantum-safe encryption solutions designed to protect communications and data against both current and emerging threats, including potential attacks from quantum computers. The company provides the Symmetric Key Agreement Platform, a proprietary encryption software service that generates unbreakable cryptographic keys for networked devices, cloud systems, and data at rest. Its product portfolio includes QuantumCloud, a Platform as a Service offering; NetworkSecure encryption software; SKA Central Controller for quantum-safe symmetric key management; and Encryption Intelligence, an automated discovery and monitoring tool that identifies obsolete encryption and accelerates migration to post-quantum cryptography. Arqit serves telecom network operators, government agencies, defense organizations, and enterprises across wireline, mobile, cloud, and artificial intelligence environments. The company collaborates with technology partners to embed quantum-safe encryption within hardware acceleration frameworks and optical transport infrastructure, addressing critical cybersecurity needs for organizations preparing for the post-quantum era.
Website3 Orchard Place
London, SW1H 0BF
United Kingdom
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 operation
Arqit Quantum looks overvalued at 397.6x FY26 EV/Sales amid dilution, cash burn, and execution risks. Read why ARQQ stock is a Strong Sell.
Detailed price information for Arqit Quantum Inc (ARQQ-Q) from The Globe and Mail including charting and trades.
Detailed price information for Arqit Quantum Inc (ARQQ-Q) from The Globe and Mail including charting and trades.
Investors talking about ARQQW also mention
| # | Name | Attention |
|---|---|---|
| 1 | Arqit Quantum Inc.ARQQ | 0%+0 |
| 2 | FormFactor Inc.FORM | 0%-0.04 |
| 3 | SkyWater Technology, Inc.SKYT | 0%-0.02 |
| 4 | Rigetti Computing Inc. WarrantsRGTIW | 0%-0.01 |
| 5 | D-Wave Quantum Inc.QBTS | 0%-0.01 |
| 6 | IonQ, Inc.IONQ | 0.11%-0.08 |
| 7 | SEALSQ CorpLAES | 0%0 |
| 8 | Quantum Computing Inc.QUBT | 0%-0.01 |
| 9 | Keysight Technologies, Inc.KEYS | 0%0 |
| 10 | Rigetti Computing, Inc.RGTI | 0.01%-0.01 |
What share of all stock conversation is about ARQQW?
| 1 Day1D | 1 Week1W | 1 Month1M | 1 Year1Y | 50-Day MAclick to plot | 200-Day MAclick to plot | |
|---|---|---|---|---|---|---|
| Attention | 0% new | 0% new | 0% 0 | 0% +0 |
Of the messages about ARQQW that take a side, what share is each?
| 1 Day1D | 1 Week1W | 1 Month1M | 1 Year1Y | 50-Day MAclick to plot | 200-Day MAclick to plot | |
|---|---|---|---|---|---|---|
| Bullish | — | — | — | 0.37% -99.43 | ||
| Bearish | — | — | — | 99.63% +99.43 |
Of the messages about ARQQW that carry a topic, what share is each?
| 1 Day1D | 1 Week1W | 1 Month1M | 1 Year1Y | 50-Day MAclick to plot | 200-Day MAclick to plot | |
|---|---|---|---|---|---|---|
| Announcements | 100% | 100% | 7.84% | 0.11% | ||
| Technical Analysis | 0% | 0% | 92.16% | 0.44% | ||
| Analysts | 0% | 0% | 0% | 47.72% | ||
| Controversies | 0% | 0% | 0% | 0% | ||
| Earnings | 0% | 0% | 0% | 0.47% | ||
| Macro | 0% | 0% | 0% | 51.26% |
Of the messages about ARQQW, what share comes from each group?
| 1 Day1D | 1 Week1W | 1 Month1M | 1 Year1Y | 50-Day MAclick to plot | 200-Day MAclick to plot | |
|---|---|---|---|---|---|---|
| Regulars | 0% | 0% | 92.16% | 7.71% | ||
| Newcomers | 100% | 100% | 7.84% | 92.29% |