Arqit Quantum (ARQQ) Stock Analysis & Price (Updated Oct 16, 2026, 4:00 PM ET)
Updated Oct 16, 2026, 4:00 PM ET
- Closed at $14.02, -11.82% vs the prior close of $15.90.
- Volume 399.56K shares, 1.2x its 50-day average.
- New SEC filings: 4 (Oct 15, 2026).
- No new insider buys or sales reported since the prior session.
ARQQ slides 11.8% to $14.02, a 3-month low. Closed at $14.02, -11.82% vs the prior close of $15.90. Day range $13.92–$16.06, opened at $15.88.
ARQQ daily analysis — what happened
A plain-English, data-only note written after every US trading day. Newest first; older days stay archived below.
Oct 16, 2026 — ARQQ slides 11.8% to $14.02, a 3-month low
- Closed at $14.02, -11.82% vs the prior close of $15.90. Day range $13.92–$16.06, opened at $15.88.
- Volume was 399.56K shares, 1.2x its 50-day average of 319.72K.
- Price is -33.6% vs its 50-day average ($21.12) and -24.9% vs its 200-day average ($18.67).
- 52-week range $11.52–$53.60; today's close sits at 6% of that range, 73.8% below the 52-week high.
Oct 15, 2026 — ARQQ jumps 3.4% to $15.90
- Closed at $15.90, +3.45% vs the prior close of $15.37. Day range $14.50–$15.90, opened at $14.97.
- Volume was 325.80K shares, 1.0x its 50-day average of 320.05K.
- Price is -25.2% vs its 50-day average ($21.26) and -15.0% vs its 200-day average ($18.71).
- 52-week range $11.52–$61.11; today's close sits at 9% of that range, 74.0% below the 52-week high.
Oct 14, 2026 — ARQQ slides 8.7% to $15.37, a 3-month low
- Closed at $15.37, -8.73% vs the prior close of $16.84. Day range $15.32–$16.53, opened at $16.42.
- Volume was 309.70K shares, 0.9x its 50-day average of 326.68K.
- Price is -28.1% vs its 50-day average ($21.37) and -18.0% vs its 200-day average ($18.74).
- 52-week range $11.52–$61.11; today's close sits at 8% of that range, 74.8% below the 52-week high.
Oct 13, 2026 — ARQQ rises 1.1% to $16.84
- Closed at $16.84, +1.11% vs the prior close of $16.66. Day range $16.21–$17.19, opened at $16.47.
- Volume was 232.10K shares, 0.7x its 50-day average of 327.27K.
- Price is -21.7% vs its 50-day average ($21.50) and -10.3% vs its 200-day average ($18.78).
- 52-week range $11.52–$61.11; today's close sits at 11% of that range, 72.4% below the 52-week high.
Oct 12, 2026 — ARQQ slides 3.3% to $16.66, 6 down days in a row
- Closed at $16.66, -3.34% vs the prior close of $17.23. Day range $16.58–$17.97, opened at $17.27.
- Volume was 292.30K shares, 0.9x its 50-day average of 325.17K.
- Price is -22.6% vs its 50-day average ($21.53) and -11.5% vs its 200-day average ($18.82).
- 52-week range $11.52–$61.11; today's close sits at 10% of that range, 72.7% below the 52-week high.
- That makes 6 straight losses.
Oct 9, 2026 — ARQQ slides 6.5% to $17.23 on 2.3x normal volume
- Closed at $17.23, -6.51% vs the prior close of $18.43. Day range $16.28–$19.35, opened at $19.22.
- Volume was 741.30K shares, 2.3x its 50-day average of 316.47K — unusually heavy trading.
- Price is -20.0% vs its 50-day average ($21.54) and -8.7% vs its 200-day average ($18.86).
- 52-week range $11.52–$61.11; today's close sits at 12% of that range, 71.8% below the 52-week high.
- That makes 5 straight losses.
Oct 8, 2026 — ARQQ slides 18.3% to $18.43 on 2.7x normal volume
- Closed at $18.43, -18.27% vs the prior close of $22.55. Day range $17.81–$22.50, opened at $22.15.
- Volume was 828.90K shares, 2.7x its 50-day average of 307.57K — unusually heavy trading.
- Price is -14.5% vs its 50-day average ($21.55) and -2.5% vs its 200-day average ($18.91).
- 52-week range $11.52–$62.00; today's close sits at 14% of that range, 70.3% below the 52-week high.
- That makes 4 straight losses.
- SEC filings that day: 6-K.
Oct 7, 2026 — ARQQ slides 3.8% to $22.55, 3 down days in a row
- Closed at $22.55, -3.76% vs the prior close of $23.43. Day range $22.00–$22.69, opened at $22.33.
- Volume was 171.00K shares, 0.6x its 50-day average of 310.64K — lighter than usual.
- Price is +4.9% vs its 50-day average ($21.49) and +19.0% vs its 200-day average ($18.95).
- 52-week range $11.52–$62.00; today's close sits at 22% of that range, 63.6% below the 52-week high.
- That makes 3 straight losses.
Oct 6, 2026 — ARQQ dips 1.1% to $23.43
- Closed at $23.43, -1.06% vs the prior close of $23.68. Day range $23.33–$24.80, opened at $23.98.
- Volume was 156.90K shares, 0.5x its 50-day average of 313.88K — lighter than usual.
- Price is +9.5% vs its 50-day average ($21.39) and +23.6% vs its 200-day average ($18.95).
- 52-week range $11.52–$62.00; today's close sits at 24% of that range, 62.2% below the 52-week high.
Oct 5, 2026 — ARQQ slides 3.8% to $23.68
- Closed at $23.68, -3.82% vs the prior close of $24.62. Day range $23.48–$24.44, opened at $24.34.
- Volume was 166.20K shares, 0.5x its 50-day average of 316.26K — lighter than usual.
- Price is +11.2% vs its 50-day average ($21.29) and +25.0% vs its 200-day average ($18.95).
- 52-week range $11.52–$62.00; today's close sits at 24% of that range, 61.8% below the 52-week high.
Oct 2, 2026 — ARQQ rises 2.8% to $24.62
- Closed at $24.62, +2.80% vs the prior close of $23.95. Day range $24.08–$24.93, opened at $24.30.
- Volume was 194.00K shares, 0.6x its 50-day average of 318.90K.
- Price is +16.4% vs its 50-day average ($21.15) and +29.9% vs its 200-day average ($18.95).
- 52-week range $11.52–$62.00; today's close sits at 26% of that range, 60.3% below the 52-week high.
ARQQ latest news & SEC filings
Every SEC filing by or about ARQQ in the last 120 days, explained in plain English. Updated daily, with a same-day refresh for new filings.
Oct 15, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Leaver Andrew sold 2,573 shares at $16.40 (≈$42.21K) on Oct 13, 2026; now holds 53,966
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Oct 13, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Leaver Andrew converted options/RSUs into 5,209 shares on Oct 12, 2026; now holds 56,539
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Oct 13, 2026 · Form 144 — Planned insider sale
Notice of proposed sale (Form 144) — an insider or affiliate plans to sell restricted or control shares
A notice of intent, not a completed sale. Any actual sale by a director or officer shows up later on Form 4.
Oct 8, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Wilder Ben Simon sold 218 shares at $24.19 (≈$5.27K) on Oct 6, 2026; now holds 4,243
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Oct 8, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Nilan Nicholas William sold 493 shares at $24.19 (≈$11.93K) on Oct 6, 2026; now holds 1,370
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Oct 8, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Ritchie Garth sold 118 shares at $24.19 (≈$2.85K) on Oct 6, 2026; now holds 105,834
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Oct 8, 2026 · Form 6-K — Report from a foreign company (6-K)
Report from a foreign company (6-K) — news it published at home
Sep 10, 2026 · Form SCHEDULE 13G/A — Update to a passive 5%+ stake (13G)
Update to a passive 5%+ stake (13G)
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Sep 9, 2026 · Form 6-K — Report from a foreign company (6-K)
Report from a foreign company (6-K) — news it published at home
Sep 2, 2026 · Form 25-NSE — Notice that a security is being removed from exchange listing
Notice that a security is being removed from exchange listing
Aug 19, 2026 · Form 6-K — Report from a foreign company (6-K)
Report from a foreign company (6-K) — news it published at home
Jun 23, 2026 · Form SCHEDULE 13G — Passive stake (13G)
Passive stake (13G) — an investor reported owning more than 5%
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Things to know before you trade ARQQ
- How much it moves: over the last 20 sessions the average daily move was 4.89% (largest 18.3%). That is a volatile stock.
- Liquidity: about 311.81K shares (≈$4.37M) trade per day on average.
- 52-week position: $14.02 vs a range of $11.52–$53.60 (6% of the range).
- Dividends: no cash dividends in the last 2 years.
- Splits: none in the last 2 years.
- Insider trades (Form 4, last 12 months, recent 25 shown): 0 open-market buys, 25 sales; latest: Garth Ritchie sold 439 shares on Jul 2, 2026.
- Latest filings: 6-K Oct 8, 2026; 6-K Sep 9, 2026; 6-K Aug 19, 2026.
- Listing: Nasdaq · industry: Services-Prepackaged Software.
ARQQ market data (last 20 sessions)
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Oct 16, 2026 | 15.88 | 16.06 | 13.92 | 14.02 | 399.56K |
| Oct 15, 2026 | 14.97 | 15.90 | 14.50 | 15.90 | 325.80K |
| Oct 14, 2026 | 16.42 | 16.53 | 15.32 | 15.37 | 309.70K |
| Oct 13, 2026 | 16.47 | 17.19 | 16.21 | 16.84 | 232.10K |
| Oct 12, 2026 | 17.27 | 17.97 | 16.58 | 16.66 | 292.30K |
| Oct 9, 2026 | 19.22 | 19.35 | 16.28 | 17.23 | 741.30K |
| Oct 8, 2026 | 22.15 | 22.50 | 17.81 | 18.43 | 828.90K |
| Oct 7, 2026 | 22.33 | 22.69 | 22.00 | 22.55 | 171.00K |
| Oct 6, 2026 | 23.98 | 24.80 | 23.33 | 23.43 | 156.90K |
| Oct 5, 2026 | 24.34 | 24.44 | 23.48 | 23.68 | 166.20K |
| Oct 2, 2026 | 24.30 | 24.93 | 24.08 | 24.62 | 194.00K |
| Oct 1, 2026 | 24.00 | 24.16 | 23.05 | 23.95 | 129.70K |
| Sep 30, 2026 | 24.48 | 25.00 | 23.90 | 24.06 | 160.30K |
| Sep 29, 2026 | 24.86 | 25.10 | 23.80 | 24.12 | 212.40K |
| Sep 28, 2026 | 24.30 | 24.86 | 23.56 | 24.64 | 194.00K |
| Sep 25, 2026 | 23.16 | 24.99 | 22.49 | 24.60 | 370.30K |
| Sep 24, 2026 | 21.94 | 23.61 | 21.70 | 23.12 | 262.40K |
| Sep 23, 2026 | 23.30 | 23.55 | 22.02 | 22.54 | 236.80K |
| Sep 22, 2026 | 23.51 | 24.50 | 22.52 | 23.04 | 389.00K |
| Sep 21, 2026 | 20.55 | 23.68 | 20.53 | 23.53 | 463.50K |
About Arqit Quantum
Arqit Quantum (ARQQ) is listed on the Nasdaq and classified by the SEC under “Services-Prepackaged Software”. Its business address is in LONDON, United Kingdom. State of incorporation: Cayman Islands. Fiscal year ends September 30. SEC CIK 1859690.
ARQQ board of directors & executives
From SEC Form 3/4/5 insider filings made in the last 12 months (date = latest filing).
Directors
| Name | Role | Latest filing |
|---|---|---|
| Carlo Calabria | Director | Jul 21, 2026 |
| Stephen Charles Chandler | Director | Mar 18, 2026 |
| D'Ovidio Manfredi Lefebvre | Director | Sep 23, 2026 |
| Cristina Levis | Director | Jun 5, 2026 |
| Garth Ritchie | Director | Jul 21, 2026 |
Executive officers
| Name | Title | Latest filing |
|---|---|---|
| Jennifer Bers | Chief Revenue Officer | Jun 24, 2026 |
| Paul Feenan | Chief Revenue Officer | Jul 6, 2026 |
| Andrew Leaver | Chief Executive Officer | Jul 6, 2026 |
| Nicholas William Nilan | General Manager-US | Mar 18, 2026 |
| Nicholas Pointon | Chief Financial Officer | May 20, 2026 |
| Robert Michael Russell | Chief Financial Officer | Jun 22, 2026 |
| Ben Simon Wilder | Chief Operating Officer | Jul 6, 2026 |
| Patrick Willcocks | General Counsel | Jul 6, 2026 |
Recent insider buys & sales
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jul 2, 2026 | Garth Ritchie | Sale | 439 | $25.20 |
| Jul 2, 2026 | Garth Ritchie | Sale | 439 | $25.20 |
| Jul 2, 2026 | Garth Ritchie | Sale | 439 | $25.20 |
| Jul 2, 2026 | Garth Ritchie | Sale | 439 | $25.20 |
| Jul 2, 2026 | Andrew Leaver | Sale | 9,893 | $25.20 |
| Jul 2, 2026 | Andrew Leaver | Sale | 9,893 | $25.20 |
| Jul 2, 2026 | Andrew Leaver | Sale | 9,893 | $25.20 |
| Jul 2, 2026 | Andrew Leaver | Sale | 9,893 | $25.20 |
| Jul 2, 2026 | Ben Simon Wilder | Sale | 769 | $25.20 |
| Jul 2, 2026 | Ben Simon Wilder | Sale | 769 | $25.20 |
| Jul 2, 2026 | Ben Simon Wilder | Sale | 769 | $25.20 |
| Jul 2, 2026 | Ben Simon Wilder | Sale | 769 | $25.20 |
| Jul 2, 2026 | Patrick Willcocks | Sale | 2,009 | $25.20 |
| Jul 2, 2026 | Patrick Willcocks | Sale | 2,009 | $25.20 |
| Jul 2, 2026 | Patrick Willcocks | Sale | 2,009 | $25.20 |
ARQQ financials (annual, from XBRL filings)
| Fiscal year end | Revenue | Net income | Diluted EPS | Operating cash flow |
|---|---|---|---|---|
| No annual XBRL figures available (foreign filers often report on Form 20-F). | ||||
Latest balance sheet: total assets $—, total liabilities $—, cash $—.
ARQQ earnings / results-day log
| Date | Filing | Close that day |
|---|---|---|
| No 8-K earnings releases in recent filings. | ||
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Information only, not investment advice. BuyMeWhiskey is not a registered investment adviser or broker-dealer; nothing here is a recommendation to buy, sell or hold any security, and there are no price targets. Data comes from SEC EDGAR filings and public end-of-day market data and may be delayed or contain errors. Verify with the company's filings before making decisions. Prices: end-of-day data as of Oct 16, 2026, 4:00 PM ET. Filings: SEC EDGAR. Updated after every US trading day.