17.49
price up icon6.32%   1.04
after-market After Hours: 17.50 0.01 +0.06%
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Arqit Quantum Inc stock is traded at $17.49, with a volume of 2.18M. It is up +6.32% in the last 24 hours and up +10.98% over the past month. 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.
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Previous Close:
$16.45
Open:
$16.76
24h Volume:
2.18M
Relative Volume:
6.12
Market Cap:
$273.75M
Revenue:
$530.00K
Net Income/Loss:
$-35.43M
P/E Ratio:
-7.1031
EPS:
-2.4623
Net Cash Flow:
$-28.87M
1W Performance:
+31.11%
1M Performance:
+10.98%
6M Performance:
-28.23%
1Y Performance:
-29.36%
1-Day Range:
Value
$16.49
$19.00
1-Week Range:
Value
$11.91
$19.00
52-Week Range:
Value
$11.52
$62.00

Arqit Quantum Inc Stock (ARQQ) Company Profile

Name
Name
Arqit Quantum Inc
Name
Phone
-
Name
Address
-
Name
Employee
91
Name
Twitter
Name
Next Earnings Date
2026-05-21
Name
Latest SEC Filings
Name
ARQQ's Discussions on Twitter

Compare ARQQ vs MSFT, ORCL, PLTR, CRWD, SNPS

Stocks Price Market Cap Revenue Net Income Cash Flow EPS
ARQQ icon
ARQQ
Arqit Quantum Inc
17.49 257.47M 530.00K -35.43M -28.87M -2.4623
MSFT icon
MSFT
Microsoft Corp
418.57 3.11T 318.27B 125.22B 72.92B 16.79
ORCL icon
ORCL
Oracle Corp
192.08 545.79B 64.08B 16.40B -24.74B 5.5698
PLTR icon
PLTR
Palantir Technologies Inc
136.88 329.43B 5.22B 2.29B 2.69B 0.8876
CRWD icon
CRWD
Crowdstrike Holdings Inc
663.46 165.00B 4.81B -181.85M 1.24B -0.7398
SNPS icon
SNPS
Synopsys Inc
524.74 96.54B 8.00B 1.10B 2.28B 6.4708

Arqit Quantum Inc Stock (ARQQ) Upgrades & Downgrades

Date Action Analyst Rating Change
Dec-31-24 Reiterated H.C. Wainwright Buy
Jul-19-22 Initiated Deutsche Bank Hold
Apr-26-22 Initiated H.C. Wainwright Buy

Arqit Quantum Inc Stock (ARQQ) Latest News

pulisher
May 22, 2026

Arqit Quantum Analyst Ratings and Price Targets | NASDAQ:ARQQ - Benzinga

May 22, 2026
pulisher
May 22, 2026

Is Arqit Quantum’s (ARQQ) Mounting Losses Versus Modest Sales Reshaping Its Quantum-Security Story? - simplywall.st

May 22, 2026
pulisher
May 21, 2026

Arqit Quantum Inc (ARQQ) Half Year 2026 Earnings Call Highlights: Revenue Surge Amidst ... By GuruFocus - Investing.com Canada

May 21, 2026
pulisher
May 21, 2026

Arqit Quantum (NASDAQ: ARQQ) director-affiliated entity sells 188 Business Combination Warrants - Stock Titan

May 21, 2026
pulisher
May 21, 2026

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

May 21, 2026
pulisher
May 21, 2026

ARQQ: Revenue surged and contract momentum accelerated as quantum security urgency grows - TradingView

May 21, 2026
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May 21, 2026

Arqit (ARQQ) Q2 2026 Earnings Transcript - AOL.com

May 21, 2026
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May 21, 2026

Transcript : Arqit Quantum Inc., H1 2026 Earnings Call, May 21, 2026 - marketscreener.com

May 21, 2026
pulisher
May 21, 2026

Arqit Quantum H1 Earnings Call Highlights - Barchart

May 21, 2026
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May 21, 2026

Full Transcript: Arqit Quantum H1 2026 Earnings Call - Benzinga

May 21, 2026
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May 21, 2026

ARQQ: Revenue surged while operating losses increased; strong cash position supports ongoing growth - TradingView

May 21, 2026
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May 21, 2026

Earnings call transcript: Arqit Quantum reports strong growth in H1 2026 - Investing.com

May 21, 2026
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May 21, 2026

symbol__ Stock Quote Price and Forecast - CNN

May 21, 2026
pulisher
May 21, 2026

Arqit Quantum (ARQQ) updates resale registration for 4.72M shares, warrants - Stock Titan

May 21, 2026
pulisher
May 21, 2026

Arqit Quantum Inc. Reports Earnings Results for the Half Year Ended March 31, 2026 - marketscreener.com

May 21, 2026
pulisher
May 21, 2026

Arqit (NASDAQ: ARQQ) grows H1 2026 revenue but posts $33m net loss - Stock Titan

May 21, 2026
pulisher
May 21, 2026

Arqit Quantum Inc. Announces Financial Results for First Half of Fiscal Year 2026 - The Manila Times

May 21, 2026
pulisher
May 21, 2026

ARQQ: H1 FY2026 revenue jumped to $623,000, fueled by new contracts and strategic product launches - TradingView

May 21, 2026
pulisher
May 21, 2026

Quantum-safe firm Arqit lands 11 contracts and $623K in H1 revenue - Stock Titan

May 21, 2026
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May 21, 2026

Earnings Scheduled For May 21, 2026 - Benzinga

May 21, 2026
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May 21, 2026

Arqit Quantum reports H1 FY2026 revenue growth to $623K, launches new Encryption Intelligence product. - Pluang

May 21, 2026
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May 20, 2026

Arqit Quantum to Announce 1H Earnings on May 21st - Intellectia AI

May 20, 2026
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May 20, 2026

Arqit Quantum (ARQQ) CFO sells 435 shares and exercises 3,066 options - Stock Titan

May 20, 2026
pulisher
May 20, 2026

ARQQ H1'26 Earnings: EPS estimate is (0.78) USD - TradingView

May 20, 2026
pulisher
May 19, 2026

Director-linked entity trims Arqit (ARQQ) warrant stake with small open-market sales - Stock Titan

May 19, 2026
pulisher
May 18, 2026

Avoiding Lag: Real-Time Signals in (ARQQ) Movement - Stock Traders Daily

May 18, 2026
pulisher
May 17, 2026

Arqit Quantum(ARQQ) Stock Options Chain | Quotes & News - Moomoo

May 17, 2026
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May 15, 2026

Small ARQQ warrant sales by entity tied to Arqit Quantum (ARQQ) director - Stock Titan

May 15, 2026
pulisher
May 14, 2026

ARQQ H1'26 Earnings: revenue estimate is 1.10M USD - TradingView

May 14, 2026
pulisher
May 13, 2026

Small Arqit (ARQQ) warrant sale as holder retains 615,597 contracts - Stock Titan

May 13, 2026
pulisher
May 13, 2026

ARQQW Stock Price, Quote & Chart | ARQIT QUANTUM INC -CW26 (NASDAQ:ARQQW) - ChartMill

May 13, 2026
pulisher
May 12, 2026

Arqit Quantum (ARQQ) director logs small open-market warrant sales - Stock Titan

May 12, 2026
pulisher
May 11, 2026

TradingKey - TradingKey

May 11, 2026
pulisher
May 11, 2026

Arqit Quantum sets earnings call for May 21, 2026, to report H1 financial results. - Pluang

May 11, 2026
pulisher
May 11, 2026

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

May 11, 2026
pulisher
May 11, 2026

Quantum encryption firm Arqit sets May 21 H1 2026 earnings call - Stock Titan

May 11, 2026
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May 10, 2026

9 Best Quantum Computing Stocks to Buy in 2026 - The Motley Fool

May 10, 2026
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May 08, 2026

[Form 4] Arqit Quantum Inc. Insider Trading Activity - Stock Titan

May 08, 2026
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May 08, 2026

Arqit Quantum (ARQQ) entity sells 415 Business Combination warrants - Stock Titan

May 08, 2026
pulisher
May 08, 2026

Number of shareholders of Arqit Quantum Inc. – NASDAQ:ARQQ - TradingView

May 08, 2026
pulisher
May 08, 2026

Arqit Deadline Alert - TMX Newsfile

May 08, 2026
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May 08, 2026

May 8, 2026Calabria Carlo4: Statement of changes in beneficial ownership of securities - Arqit

May 08, 2026
pulisher
May 07, 2026

Discipline and Rules-Based Execution in ARQQ Response - Stock Traders Daily

May 07, 2026
pulisher
May 06, 2026

Arqit Quantum (NASDAQ: ARQQ) director-linked entity sells 396 warrants - Stock Titan

May 06, 2026
pulisher
May 04, 2026

Arqit Quantum (ARQQ) director sells 493 business combination warrants - Stock Titan

May 04, 2026
pulisher
May 02, 2026

Arqit Quantum Inc. Warrants (ARQQW) - Minichart

May 02, 2026
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May 02, 2026

Arqit Quantum Adds Experienced Independent Director to Audit Committee - The Globe and Mail

May 02, 2026
pulisher
May 01, 2026

Cristina Levis joins Arqit Inc. (ARQQ) board and Audit Committee - Stock Titan

May 01, 2026
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Apr 29, 2026

Arqit Quantum (NASDAQ: ARQQ) director reports sales of Business Combination Warrants - Stock Titan

Apr 29, 2026
pulisher
Apr 28, 2026

A Look At Arqit Quantum (ARQQ) Valuation After Joining Tomorrow Street’s Scaleup Partner Portfolio - simplywall.st

Apr 28, 2026
pulisher
Apr 27, 2026

Director entity trims 387 Arqit Quantum (NASDAQ: ARQQ) warrants - Stock Titan

Apr 27, 2026

Arqit Quantum Inc Stock (ARQQ) Financials Data

Revenue

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Net Income

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Cash Flow

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EPS

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XYZ XYZ
$68.08
price down icon 0.83%
$214.77
price down icon 2.35%
$105.49
price down icon 1.94%
NET NET
$216.17
price up icon 1.66%
$133.93
price up icon 3.45%
$524.74
price up icon 4.12%
Cap:     |  Volume (24h):