LONDON, Dec. 03, 2025 (GLOBE NEWSWIRE) -- Arqit Quantum Inc. (NASDAQ: ARQQ, “Arqit”), a global leader in quantum-safe encryption, and Sparkle, a Tier 1 global telecoms operator, have successfully demonstrated quantum-resilient data transmission across Sparkle's optical network in Greece. The proof of concept (POC), implemented over Sparkle metropolitan optical ring in Athens, shows how Arqit's encryption technology can be embedded directly into the optical transport layer, protecting high-capacity networks against future quantum threats without impacting performance.

LONDON, Dec. 01, 2025 (GLOBE NEWSWIRE) -- Arqit Quantum Inc. (“Arqit”), a leader in quantum safe encryption, announced it will report financial results for the fiscal year ending September 30, 2025 on Tuesday, December 9, 2025.

Arqit Quantum stock (NASDAQ: ARQQ) has recently experienced a substantial decline, plummeting an alarming 24% within just one week. This downturn is predominantly attributed to investors retracting from highly speculative quantum growth stocks, driven by concerns regarding global instability and possible postponements in interest rate reductions.

Arqit Quantum's valuation moved lower this week as investors sold out of speculative growth plays. Quantum computing stocks as a category had a rough week.

LONDON, Nov. 11, 2025 (GLOBE NEWSWIRE) -- Arqit Quantum Inc. (NASDAQ: ARQQ, “Arqit”), a global leader in quantum-safe encryption, today announced the launch of SKA Central Controller (SKA-CC), an innovative software platform that future-proofs network security against current and post-quantum threats. SKA-CC is a crypto-agile, low-footprint product that enables Telco and Defense Managed Service Providers to deliver quantum-safe network services without the cost and complexity of traditional key management.

CrowdStrike, Palo Alto Networks, Fortinet, Arqit Quantum, and SentinelOne are the five Cybersecurity stocks to watch today, according to MarketBeat's stock screener tool. Cybersecurity stocks are shares of companies that develop or provide products and services-such as software, hardware, cloud security, and consulting-designed to protect networks, data, and digital systems from cyber threats. For investors,

ARQIT QUANTUM (ARQQ) appears to have found support after losing some value lately, as indicated by the formation of a hammer chart. In addition to this technical chart pattern, strong agreement among Wall Street analysts in revising earnings estimates higher enhances the stock's potential for a turnaround in the near term.

Arqit Quantum Inc. offers quantum-safe cybersecurity solutions, positioning itself in a less crowded, high-potential niche compared to quantum computing startups. ARQQ's revenue is growing rapidly, with contracts expected to drive over 100% revenue growth in FY2026 and a strengthened cash position. ARQQ stock has soared over 600% in twelve months, yet its market cap remains modest relative to quantum computing peers, reflecting investor optimism.

Many investors allocate a portion of their portfolio to stock picking and trading strategies. One popular tactic is tracking stocks with the highest percentage gains, as these moves often signal strong momentum and bullish sentiment.

LONDON, Oct. 09, 2025 (GLOBE NEWSWIRE) -- Arqit Quantum Inc. (Nasdaq: ARQQ, ARQQW) (“Arqit”), a global leader in quantum-safe encryption, announces select preliminary financial results for the second half and full fiscal year 2025. Based on preliminary unaudited results, management expects revenue for the second half period ended 30 September 2025 of approximately $460,000 to $470,000.