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$ARQQ

Arqit Quantum Inc. Ordinary Shares

XNASOtherUnknown

$21.41
+2.24%+$0.470
RVOL peak today
Normal
Halted today
None today
Float
5.1M
Next earnings
Unscheduled
$21.41+2.24%+$0.4700Prev $20.94LIVE Full chart Live alerts
No recent price bars, the chart lights up when ARQQ starts printing.

Why is ARQQ up today? It is at $21.41 (+2.24%), and our scanner flagged it 36 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment ARQQ spikes, and full due diligence on ARQQ — key stats, earnings, dilution and insider activity. Free.

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Our scanner flagged $ARQQ 36 times in the last 30 days. Create a free account to track $ARQQ, build a watchlist, and get instant unusual-volume alerts, with a full day of premium now and 5 more when you verify your email, no card needed.

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Key Stats

Price & performance
Price
$21.41
Change today
+2.24%
Previous close
$20.94
52-week range
$11.52 – $62.00
Valuation & dividend
Market cap
$368M
Ownership & volume
Shares outstanding
17.4M
Live vendor count
Institutional own.
70.86%
Total held
70.9%
Tradeable float
5.1M
29% of shares · after 71% institutions
Short interest
2.9M
▼ -12% vs prior · as of 2026-07-31
Short % of float
57.2%
Days to cover
8.8d
Avg daily volume
539K
Classification
Sector
Other
Industry
Unknown
Exchange
XNAS
Relative volumevs this time of day
5mthin
24x
15mthin
24x
1hthin
12x
1D
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Why is $ARQQ up today?

Here is the latest on ARQQ from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for ARQQ today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.

Likely catalystForeign issuer report (6-K), from an SEC filing. Read it →
Why is $ARQQ moving? →▶ Replay the moveAuto-generated from live scanner data. Not investment advice.
Trading profileLow float · 5.1M sh🔥 Heavily shorted · 57% of floatNot shortableNo SSRBorrow via Alpaca · SSR from Reg SHO 201

$ARQQ on Reddit

#480 of 720All posts →
2 mentions124 engagementMore talked about than 33% of discussed tickers

From the trading subreddits (WallStreetBets, r/stocks and more). Retail chatter, not a signal. Do your own research.

Insiders

Insiders selling0 buys, 9 sells last 3 months (0/16 over 12 months)
Show 12 recent transactions
InsiderActionShares% of positionOwns afterValueDate
Ritchie Garth
Director
Other841added 0.8%105Kn/aJul 17, 26
Lefebvre D'Ovidio Manfredi
Director
Other673added 1.4%49Kn/aJul 17, 26
Calabria Carlo
Director
Other757added 0.3%232Kn/aJul 17, 26
Feenan Paul
Officer
Sold (automatic/other)-2K
0.01% of company
sold 8.7%19K$46K
at $25.20
Jul 2, 26
Wilder Ben Simon
Officer
Sold (automatic/other)-769sold 18%4K$19K
at $25.20
Jul 2, 26
Leaver Andrew
Officer
Sold (automatic/other)-10K
0.06% of company
sold 16%51K$249K
at $25.20
Jul 2, 26
Ritchie Garth
Director
Sold (automatic/other)-439sold 0.4%105K$11K
at $25.20
Jul 2, 26
Willcocks Patrick
Officer
Sold (automatic/other)-2K
0.01% of company
sold 18%9K$51K
at $25.20
Jul 2, 26
Lefebvre D'Ovidio Manfredi
Director
Sold (automatic/other)-32K
0.2% of company
sold 0.7%4.34M$980K
at $30.24
Jul 1, 26
Feenan Paul
Officer
Other3K
0.02% of company
added 18%21Kn/aJul 1, 26
Wilder Ben Simon
Officer
Other1Kadded 44%4Kn/aJul 1, 26
Leaver Andrew
Officer
Other16K
0.09% of company
added 34%61Kn/aJul 1, 26

Recent Form-4 filings via Nasdaq. Open-market buys are the signal worth watching. Grants and automatic (10b5-1) sells are routine. “% of position” is the share of that insider’s own holding the trade moved. Not investment advice.

Dilution watch

Active shelf

Recent share offering + active shelf on file — the company raised capital and can raise more. If $ARQQ runs, these filings show who may be positioned to sell new or newly-registered shares into the move.

Sourced from SEC EDGAR filings (last 9 months); terms read straight from the filing text where available. Ongoing = an at-the-market (ATM) program still selling over time or a live shelf, so it can keep diluting; Completed = a one-time priced sale that already finished. A shelf (S-3) stays effective ~3 years. Form type signals dilution capacity, not an exact share count, and we can't confirm how much of a shelf or ATM remains unused. Not investment advice.

$ARQQ Sentiment

Bullish
Bearish84Bullish
📰 News: 4 bull · 0 bearToday: +2.2%👥 Community: 0 bull · 0 bear

Blend of news sentiment, today’s move, and community votes. Not investment advice.

$ARQQ Activity

News, unusual-volume alerts, AI-trader trades and community chatter - the whole story, newest first.

Alert· 1d ago -2.2% vs EMA
$ARQQ near 200 EMA: -2.19% from 200 EMA at 7:28 PM ET
at $20.83
Alert· 1d ago +2.78%
$ARQQ moved +2.78% in 1 min (Level 2) at 7:28 PM ET
at $21.41
Alert· 1d ago 15.6× RVOL
ARQQ hit 15.635x RVOL at 7:28 PM ET
at $20.83
Alert· 2d ago +0.8% vs EMA
ARQQ 200EMA (1m) Trending · 63 bars · L3 · +0.83% above EMA · slope +0.26%
at $21.49
Alert· 2d ago -2.37%
$ARQQ moved -2.37% in 1 min (Level 2) at 8:05 AM ET
at $21.28
Alert· 2d ago +2.09%
$ARQQ moved +2.09% in 1 min (Level 2) at 6:19 AM ET
at $21.50
News· SEC EDGAR· 4d ago
Arqit Quantum Inc. filed a Foreign issuer report (6-K)
Alert· 4d ago -1.77%
$ARQQ moved -1.77% in 1 min (Level 1) at 8:54 AM ET
at $21.88
Alert· 5d ago -4.33%
$ARQQ moved -4.33% (~15m high-low range 4.33%) (Level 4) at 4:10 PM ET
at $21.90
Alert· 5d ago 7.5× RVOL
ARQQ hit 7.463x RVOL at 2:55 PM ET
at $22.09
Alert· 5d ago +1.03%
$ARQQ moved +1.03% in 1 min (Level 1) at 11:54 AM ET
at $22.45
Alert· 5d ago 2.6× RVOL
ARQQ hit 2.587x RVOL at 11:54 AM ET
at $22.45
Alert· 5d ago 3.4× RVOL
ARQQ hit 3.415x RVOL at 11:23 AM ET
at $22.43
Alert· 5d ago +1.14%
$ARQQ moved +1.14% in 1 min (Level 1) at 10:14 AM ET
at $22.27
Alert· 5d ago 4.0× RVOL
ARQQ hit 4.015x RVOL at 10:14 AM ET
at $22.02
Alert· 5d ago +4.02%
$ARQQ moved +4.02% in 1 min (Level 1) at 9:41 AM ET
at $23.86
Alert· 5d ago 4.1× RVOL
ARQQ hit 4.102x RVOL at 9:41 AM ET
at $23.69
Alert· 5d ago -4.55%
$ARQQ moved -4.55% (~15m high-low range 4.55%) (Level 4) at 7:58 AM ET
at $23.30
Alert· 10d ago 2.9× RVOL
ARQQ hit 2.879x RVOL at 10:04 AM ET
at $23.89
Alert· 11d ago -2.5% vs EMA
$ARQQ near 200 EMA: -2.52% from 200 EMA at 11:33 AM ET
at $23.23
Alert· 11d ago -1.69%
$ARQQ moved -1.69% in 1 min (Level 1) at 11:33 AM ET
at $23.23
Alert· 11d ago 10.9× RVOL
ARQQ hit 10.910x RVOL at 11:33 AM ET
at $23.23
Alert· 11d ago +1.32%
$ARQQ moved +1.32% in 1 min (Level 1) at 8:34 AM ET
at $24.50
Alert· 11d ago 4.0× RVOL
ARQQ hit 3.971x RVOL at 4:49 AM ET
at $24.18
Alert· 11d ago +2.1% vs EMA
ARQQ 50EMA (5m) Trending · 72 bars · L3 · +2.10% above EMA · slope +2.02%
at $24.26
Alert· 11d ago +3.3% vs EMA
ARQQ 200EMA (1m) Trending · 151 bars · L4 · +3.30% above EMA · slope +0.60%
at $24.26
News· Benzinga· 67d ago Bullish
The Quiet Race to Rewire the World's Encryption Before Quantum Computers Break It
News· SEC EDGAR· 67d ago
Arqit Quantum Inc. filed a Foreign issuer report (6-K)
News· Investing.com· 68d ago Bullish
Can D-Wave Hold Its Own Against 2 Fast-Growing Rivals?
News· Benzinga· 80d ago Bullish
As Washington Pours Billions Into Quantum Computing, One Company Says the Real Race Is Defending the Data
News· Benzinga· 89d ago Bullish
AI-Enabled Cyberespionage Is a National Security Threat. Integrated Cyber Solutions Has an Answer
News· SEC EDGAR· 94d ago
Arqit Quantum Inc. filed a Foreign issuer report (6-K)
News· SEC EDGAR· 114d ago
Arqit Quantum Inc. filed a Foreign issuer report (6-K)

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ARQQ stock FAQ

Why is $ARQQ up today?

Here is the latest on ARQQ from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for ARQQ today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.

What is the ARQQ stock price today?

ARQQ last traded at $21.41, up 2.24% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).

Where can I see live ARQQ alerts?

The ARQQ Live Alerts panel on this page streams real-time unusual volume (RVOL), momentum, halt and 200-EMA alerts from our scanner the moment they fire. Our scanner has flagged ARQQ 36 times in the last 30 days.

What exchange is ARQQ on?

ARQQ (Arqit Quantum Inc. Ordinary Shares) trades on XNAS, with a market cap of about $368M in the UNKNOWN sector.

Is ARQQ good for day trading?

That depends on your strategy and risk. Day traders look for volume, volatility and a clear trend. Use the live chart, RVOL alerts and 200-EMA context on this page to judge ARQQ for yourself. This is not investment advice.

Live data from TheDesperateTrader scanner. Not investment advice.