ARQQ · Arqit Quantum Inc. · Holdings
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Holder Concentration
Across 75 13F filersWho Holds ARQQ
Last 8 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 70 filers, like-for-like change +78.5%; actively managed books +76.0%; index-like books +261.9%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 89.2% | 31 | +77.0% |
| Bank | 5.0% | 8 | +515.8% |
| Broker-dealer | 0.2% | 2 | +121.4% |
| Non-US | 0.7% | 5 | +9.9% |
| Holding company | 0.4% | 4 | +12.4% |
| Exempt adviser | 0.0% | 0 | — |
| Adviser | 0.0% | 0 | — |
| Unknown | 4.5% | 20 | +20.1% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 2.8% | 8 | +261.9% |
| Systematic-like | 0.5% | 2 | -25.9% |
| Concentrated | 0.4% | 10 | +13.0% |
| Diversified active | 96.3% | 50 | +77.6% |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 6.0% | 40 | +53.9% |
| Medium turnover | 65.7% | 18 | +52.0% |
| High turnover | 0.8% | 7 | -22.5% |
| Unknown | 27.5% | 5 | +250.9% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 27.5% | 5 | +247.8% |
| Medium horizon | 18.4% | 12 | -2.5% |
| Long horizon | 53.1% | 50 | +89.4% |
| Unknown | 1.0% | 3 | -18.9% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 17.3% | 10 | -1.4% |
| $1B to $10B | 44.7% | 25 | +76.7% |
| $10B to $100B | 29.2% | 13 | +176.1% |
| $100B or more | 8.8% | 22 | +239.6% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 33.0% | 20 | -2.0% |
| Pooled investment vehicles | 0.7% | 3 | -26.8% |
| Registered funds and BDCs | 55.5% | 6 | +251.7% |
| Diversified | 0.0% | 2 | new |
| Governments and sovereign funds | 0.0% | 0 | — |
| Unknown | 10.8% | 39 | +92.2% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 0.7% | 3 | -26.8% |
| Private equity funds | 15.9% | 2 | -2.8% |
| Real estate funds | 0.0% | 1 | -95.2% |
| Other private funds | 0.0% | 2 | +769.2% |
| Private funds, type not stated | 0.4% | 2 | +301.3% |
| No private funds | 72.1% | 21 | +119.1% |
| Unknown | 10.8% | 39 | +92.2% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 92.0% | 52 | +76.3% |
| Outside the US | 8.0% | 18 | +108.6% |
The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 1 holder with no observed 2026-03-31 13F and 2 holders with no observed 2026-06-30 13F.
Conviction and Crowding
64 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 53.9% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shared Holders
Companies ARQQ's active holders also own, quarter ended Jun 30, 2026| # | Company | Shared holders |
|---|---|---|
| 1 | QNC Quantum eMotion Corp | 3 |
| 2 | BTQ BTQ Technologies Corp. | 3 |
| 3 | XNDU Xanadu Quantum Technologies Ltd | 3 |
| 4 | QUBT Quantum Computing Inc. | 3 |
| 5 | RGTI Rigetti Computing, Inc. | 5 |
| 6 | RDW Redwire Corp | 3 |
| 7 | QBTS D-Wave Quantum Inc. | 4 |
| 8 | INFQ Infleqtion, Inc. | 3 |
| 9 | QNT Quantinuum Inc. | 3 |
| 10 | IONQ IonQ, Inc. | 4 |
Shareholder Targets
13F filers that own its peers but not ARQQ, quarter ended Jun 30, 2026Found through its holder-overlap peers: QNC, BTQ, XNDU, QUBT, RGTI, RDW, QBTS, INFQ, QNT, IONQ, ASTS, SPCX, AWK, CRWV, RKLB, HPE, VST, BABA, XLB, IVZ. 4,825 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | Alphabet Inc. Unknown, Concentrated | $94,970,956,135 2 held | SPCX, ASTS |
| 2 | Valor Management LLC Adviser, Concentrated | $86,013,406,595 1 held | SPCX |
| 3 | FMR LLC Holding company, Diversified active | $56,241,035,075 17 held | SPCX, VST, IVZ |
| 4 | VY Capital Management Co. Ltd. Exempt adviser, Concentrated | $46,441,712,890 1 held | SPCX |
| 5 | Gigafund Management Company, LLC Unknown, Unknown | $29,358,317,650 1 held | SPCX |
| 6 | PUBLIC INVESTMENT FUND Unknown, Concentrated | $26,337,528,228 1 held | SPCX |
| 7 | NVIDIA CORP Unknown, Concentrated | $25,675,211,739 2 held | SPCX, CRWV |
| 8 | BAMCO INC /NY/ Registered adviser, Concentrated | $24,978,210,966 2 held | SPCX, BABA |
| 9 | D1 Capital Partners L.P. Registered adviser, Concentrated | $21,622,653,273 3 held | SPCX, CRWV, QNT |
| 10 | VANGUARD CAPITAL MANAGEMENT LLC Registered adviser, Index-like | $21,306,724,404 15 held | SPCX, HPE, VST |
Fund Ownership of ARQQ by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 1.03% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 0.00% | 0 |
| Index ETFs | 1.03% | 179,951 |
| Active ETFs | 0.00% | 0 |
| Active funds | 0.00% | 0 |
| Unclassified | 0.18% | 30,750 |
| All registered funds | 1.21% | 210,701 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mid Defiance ETFs, LLC Registered adviser | $151,542,963 | 38.65% | 5,099,023 | Shares | 2026-08-14 | |
| Large Penserra Capital Management LLC Registered adviser | $151,013,828 | 38.51% | 5,081,219 | Shares | 2026-08-13 | |
| Mega UBS Group AG Bank | $15,539,813 | 3.96% | 522,874 | Shares | 2026-08-13 | |
| Mega Legal & General Group Plc | $8,200,907 | 2.09% | 275,939 | Shares | 2026-08-14 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $7,314,092 | 1.87% | 246,100 | Call | 2026-08-14 | |
| Mega JANE STREET GROUP, LLC | $6,588,924 | 1.68% | 221,700 | Call | 2026-08-14 | |
| Mega NATIONAL BANK OF CANADA /FI/ Bank | $6,300,640 | 1.61% | 212,000 | Shares | 2026-08-10 | |
| Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $5,592,768 | 1.43% | 188,182 | Shares | 2026-08-14 | |
| Small Crawford Fund Management, LLC Registered adviser | $4,398,560 | 1.12% | 148,000 | Put | 2026-08-14 | |
| Small Kessler Investment Group, LLC Registered adviser | $3,333,392 | 0.85% | 138,545 | Shares | 2026-10-08 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $3,325,668 | 0.85% | 111,900 | Call | 2026-09-02 | |
| Mega Bank of New York Mellon Corp Bank | $2,946,618 | 0.75% | 99,146 | Shares | 2026-08-06 | |
| Mega RAYMOND JAMES FINANCIAL INC | $2,830,829 | 0.72% | 95,250 | Shares | 2026-08-14 | |
| Mega MILLENNIUM MANAGEMENT LLC Registered adviser | $2,339,469 | 0.60% | 78,717 | Shares | 2026-08-14 | |
| Mega JANE STREET GROUP, LLC | $2,124,980 | 0.54% | 71,500 | Put | 2026-08-14 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1,913,968 | 0.49% | 64,400 | Put | 2026-08-14 | |
| Mega BANK OF AMERICA CORP /DE/ Bank | $1,610,586 | 0.41% | 54,192 | Shares | 2026-08-14 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $1,572,188 | 0.40% | 52,900 | Put | 2026-09-02 | |
| Mega VAN ECK ASSOCIATES CORP Registered adviser | $1,470,753 | 0.38% | 49,487 | Shares | 2026-08-14 | |
| Mega Cetera Investment Advisers Registered adviser | $1,135,244 | 0.29% | 38,198 | Shares | 2026-08-12 | |
| Large Walleye Capital LLC Registered adviser | $995,620 | 0.25% | 33,500 | Call | 2026-08-03 | |
| Small KKM Financial LLC Registered adviser | $933,029 | 0.24% | 31,394 | Shares | 2026-08-14 | |
| Large BANQUE PICTET & CIE SA | $866,160 | 0.22% | 36,000 | Shares | 2026-10-16 | |
| Large Man Group plc | $778,961 | 0.20% | 26,210 | Shares | 2026-08-14 | |
| Mid SBI Securities Co., Ltd. Non-US | $685,902 | 0.17% | 28,508 | Shares | 2026-10-22 | |
| Mid Advisory Services Network, LLC | $646,023 | 0.16% | 21,737 | Shares | 2026-08-12 | |
| Large Zurcher Kantonalbank (Zurich Cantonalbank) Non-US | $632,917 | 0.16% | 21,296 | Shares | 2026-08-12 | |
| Mega WELLS FARGO & COMPANY/MN Bank | $632,768 | 0.16% | 21,291 | Shares | 2026-08-14 | |
| Mega LPL Financial LLC Broker-dealer | $508,479 | 0.13% | 17,109 | Shares | 2026-08-07 | |
| Mega MORGAN STANLEY Holding company | $483,722 | 0.12% | 16,276 | Shares | 2026-08-13 | |
| Large Tidal Investments LLC Registered adviser | $476,114 | 0.12% | 16,020 | Shares | 2026-08-13 | |
| Mega CITIGROUP INC Bank | $433,079 | 0.11% | 14,572 | Shares | 2026-08-03 | |
| Mid GROUP ONE TRADING LLC Broker-dealer | $376,909 | 0.10% | 12,682 | Shares | 2026-08-14 | |
| Mid SIMPLEX TRADING, LLC | $340,947 | 0.09% | 11,472 | Shares | 2026-08-12 | |
| Mega ROYAL BANK OF CANADA Bank | $282,904 | 0.07% | 9,519 | Shares | 2026-08-14 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC Registered adviser | $276,217 | 0.07% | 9,294 | Shares | 2026-08-12 | |
| Mega HSBC HOLDINGS PLC | $251,223 | 0.06% | 8,453 | Shares | 2026-08-14 | |
| Mega GOLDMAN SACHS GROUP INC Holding company | $216,747 | 0.06% | 7,293 | Shares | 2026-08-14 | |
| Mid McGuire Investment Group, LLC Registered adviser | $205,900 | 0.05% | 6,928 | Shares | 2026-07-27 | |
| Mega BlackRock, Inc. Holding company | $195,764 | 0.05% | 6,587 | Shares | 2026-08-07 | |
| Mega JONES FINANCIAL COMPANIES LLLP | $120,990 | 0.03% | 4,071 | Shares | 2026-08-14 | |
| Large Walleye Capital LLC Registered adviser | $104,020 | 0.03% | 3,500 | Put | 2026-08-03 | |
| Large Mirae Asset Global Investments Co., Ltd. | $102,355 | 0.03% | 3,444 | Shares | 2026-07-22 | |
| Large OSAIC HOLDINGS, INC. Holding company | $95,549 | 0.02% | 3,215 | Shares | 2026-08-14 | |
| Mid Center for Financial Planning, Inc. Registered adviser | $83,750 | 0.02% | 2,818 | Shares | 2026-07-21 | |
| Mid Leonteq Securities AG | $44,580 | 0.01% | 1,500 | Shares | 2026-07-27 | |
| Mid Tower Research Capital LLC (TRC) | $37,268 | 0.01% | 1,254 | Shares | 2026-08-11 | |
| Large Rockefeller Capital Management L.P. Registered adviser | $29,720 | 0.01% | 1,000 | Shares | 2026-08-13 | |
| Mid EFG International AG | $29,720 | 0.01% | 1,000 | Shares | 2026-08-14 | |
| Mid HARBOUR INVESTMENTS, INC. Registered adviser | $26,748 | 0.01% | 900 | Shares | 2026-08-12 | |
| Mid SIGNATUREFD, LLC Registered adviser | $17,832 | 0.00% | 600 | Shares | 2026-07-24 | |
| Large Steward Partners Investment Advisory, LLC Registered adviser | $17,832 | 0.00% | 600 | Shares | 2026-08-13 | |
| Mid Ameritas Advisory Services, LLC Registered adviser | $16,762 | 0.00% | 564 | Shares | 2026-08-14 | |
| Mega BNP PARIBAS ARBITRAGE, SA Non-US | $16,732 | 0.00% | 563 | Shares | 2026-08-13 | |
| Mid WOLVERINE ASSET MANAGEMENT LLC Registered adviser | $14,533 | 0.00% | 489 | Shares | 2026-08-10 | |
| Large Farther Finance Advisors, LLC Registered adviser | $8,950 | 0.00% | 372 | Shares | 2026-10-08 | |
| Mid Heritage Wealth Advisors Registered adviser | $3,863 | 0.00% | 130 | Shares | 2026-08-14 | |
| Mid Parallel Advisors, LLC Registered adviser | $3,625 | 0.00% | 122 | Shares | 2026-08-05 | |
| Mega UBS Group AG Bank | $2,972 | 0.00% | 100 | Put | 2026-08-13 | |
| Small West Financial Advisors, LLC Registered adviser | $2,406 | 0.00% | 100 | Shares | 2026-10-22 | |
| Small Core Capital Management & Research, inc. Registered adviser | $1,307 | 0.00% | 44 | Shares | 2026-09-09 | |
| Mega DEUTSCHE BANK AG\ Non-US | $1,188 | 0.00% | 40 | Shares | 2026-08-07 | |
| Mid Quarry LP | $1,188 | 0.00% | 40 | Shares | 2026-08-14 | |
| Large US BANCORP \DE\ Bank | $1,040 | 0.00% | 35 | Shares | 2026-08-12 | |
| Mid Y.D. More Investments Ltd | $886 | 0.00% | 8,881 | Shares | 2026-08-05 | |
| Small Investors Portfolio Services LLC Registered adviser | $832 | 0.00% | 28 | Shares | 2026-08-14 | |
| Small Cornerstone Financial Management LLC Registered adviser | $743 | 0.00% | 25 | Shares | 2026-08-28 | |
| Mid Parkside Financial Bank & Trust | $475 | 0.00% | 16 | Shares | 2026-09-04 | |
| Mid CoreCap Advisors, LLC Registered adviser | $384 | 0.00% | 16 | Shares | 2026-10-08 | |
| Mid MCF Advisors LLC Registered adviser | $297 | 0.00% | 10 | Shares | 2026-08-12 | |
| Large TD Waterhouse Canada Inc. | $48 | 0.00% | 2 | Shares | 2026-10-16 | |
| Mid Blue Trust, Inc. | $48 | 0.00% | 2 | Shares | 2026-10-15 | |
| Small Covestor Ltd | $29 | 0.00% | 1 | Call | 2026-08-07 | |
| Large HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Non-US | $29 | 0.00% | 1 | Shares | 2026-08-13 | |
| Mega JANE STREET GROUP, LLC ARQQW | — | — | 42,263 | Shares | 2026-08-14 | |
| Large HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Non-US ARQQW | — | — | 73,728 | Shares | 2026-08-13 | |
| Mid Vestcor Inc ARQQW | — | — | 75,000 | Shares | 2026-08-11 | |
| Micro Silver Rock Financial LP Registered adviser ARQQW | — | — | 42,139 | Shares | 2026-08-14 | |
| Mega UBS Group AG Bank ARQQW | — | — | 1,792 | Shares | 2026-08-13 | |
| Large OSAIC HOLDINGS, INC. Holding company ARQQW | — | — | 250 | Shares | 2026-08-14 | |
| Mid Foundations Investment Advisors, LLC Registered adviser ARQQW | — | — | 2,953,810 | Shares | 2026-08-14 | |
| Mid WOLVERINE ASSET MANAGEMENT LLC Registered adviser ARQQW | — | — | 10,329 | Shares | 2026-08-10 | |
| Mega MILLENNIUM MANAGEMENT LLC Registered adviser ARQQW | — | — | 195,000 | Call | 2026-08-14 | |
| Mega GOLDMAN SACHS GROUP INC Holding company ARQQW | — | — | 47,320 | Shares | 2026-08-14 |