ARQQ
Arqit Quantum, Inc.
NASDAQ · Technology · Software - Infrastructure · GB
$14.02
+0.00%Price chart
Sep 18Sep 23Sep 28Oct 1Oct 6Oct 9Oct 14Oct 19
Key dataOct 19, 2026
Open$14.62
From 52W high−70.20%
Volume402106.00
Market cap$243.98M
P/E (TTM)—
P/S (TTM)224.7x
Div yield—
Key dataOct 19, 2026
Open
$14.62
From 52W high
−70.20%
Volume
402106.00
Market cap
$243.98M
ValuationView details →
P/E (Fwd)
—
EV/EBITDA
−4.3x
P/E (TTM)
—
RSI (14)
28.2
MomentumView details →
1D Return
+0.00%
YTD Return
−36.29%
SummaryUpdated Mar 1, 2026
Arqit Quantum Inc. (NASDAQ:ARQQ) is a London-based cybersecurity company that was founded to address the emerging threat of quantum computing to traditional encryption methods. The company went public in April 2021 through a SPAC merger and specializes in quantum-safe encryption technology. Originally conceived as a satellite-based quantum key distribution service, Arqit has since pivoted to focus exclusively on software-based quantum-safe encryption solutions delivered through cloud platforms and channel partnerships.
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Latest newsMore news →
Babcock International Group and Arqit Quantum Inc demonstrated a secure communications network using Arqit's quantum-safe encryption technology to protect sensitive data from future quantum-enabled cyber threats.27d agoArqit Quantum Inc., Es'hailSat, and AIEE announced the successful demonstration of quantum-safe security across operational satellite communications infrastructure.48d ago