아치 캐피털 그룹(주)
US ˙ NasdaqGS ˙ BMG0450A1053

SecurityACGL / Arch Capital Group Ltd.
InstitutionQube Research & Technologies Ltd
Latest Disclosed Ownership561,945 shares
Latest Disclosed Value $ 53,941,101
Qube Research & Technologies Ltd reports 15.08% decrease in ownership of ACGL / Arch Capital Group Ltd.

On May 15, 2026 - Qube Research & Technologies Ltd filed a 13F-HR form disclosing ownership of 561,945 shares of Arch Capital Group Ltd. (US:ACGL) valued at $53,941,101 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 661,748 shares of Arch Capital Group Ltd.. This represents a change in shares of -15.08% during the quarter. The current value of the position is $49,642,221 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F ARCH CAP GROUP ORD G0450A105 561,945 -99,803 -15.08 53,941 -15.02 0.0600
2026-02-17 2025-12-31 13F ARCH CAP GROUP ORD G0450A105 661,748 213,820 47.74 63,475 56.19 0.0645
2025-11-14 2025-09-30 13F ARCH CAP GROUP ORD G0450A105 447,928 -493,813 -52.44 40,641 -52.60 0.0420
2025-08-14 2025-06-30 13F ARCH CAP GROUP ORD G0450A105 941,741 -288,411 -23.45 85,746 -27.53 0.0871
2025-05-15 2025-03-31 13F ARCH CAP GROUP ORD G0450A105 1,230,152 475,648 63.04 118,316 69.80 0.1372
2025-02-14 2024-12-31 13F ARCH CAP GROUP ORD G0450A105 754,504 460,677 156.79 69,678 111.96 0.0914
2024-11-14 2024-09-30 13F ARCH CAP GROUP ORD G0450A105 293,827 -359,921 -55.06 32,873 -50.16 0.0485
2024-08-14 2024-06-30 13F ARCH CAP GROUP ORD G0450A105 653,748 -384,059 -37.01 65,957 -31.25 0.1042
2024-05-14 2024-03-31 13F ARCH CAP GROUP ORD G0450A105 1,037,807 204,926 24.60 95,935 55.09 0.1521
2024-02-13 2023-12-31 13F ARCH CAP GROUP ORD G0450A105 832,881 832,881 61,858 0.1204
2023-02-14 2022-12-31 13F ARCH CAP GROUP ORD G0450A105 0 -472,207 -100.00 0 -100.00
2022-11-14 2022-09-30 13F ARCH CAP GROUP ORD G0450A105 472,207 355,653 305.14 21,504 305.58 0.1281
2022-08-15 2022-06-30 13F ARCH CAP GROUP ORD G0450A105 116,554 -198,641 -63.02 5,302 -65.26 0.0391
2022-05-09 2022-03-31 13F ARCH CAP GROUP ORD G0450A105 315,195 165,973 111.23 15,262 130.09 0.1293
2022-02-10 2021-12-31 13F/A-1 ARCH CAP GROUP ORD G0450A105 149,222 -18,784 -11.18 6,633 3.41 0.0512
2022-02-01 2021-12-31 13F ARCH CAP GROUP ORD G0450A105 149,222 -18,784 6,633 0.0513
2021-11-12 2021-09-30 13F ARCH CAP GROUP ORD G0450A105 168,006 168,006 6,414 0.0805
2021-08-13 2021-06-30 13F ARCH CAP GROUP ORD G0450A105 0 -42,762 -100.00 0 -100.00
2021-05-14 2021-03-31 13F ARCH CAP GROUP ORD G0450A105 42,762 -64,734 -60.22 1,641 -57.67 0.0260
2021-02-16 2020-12-31 13F ARCH CAP GROUP ORD G0450A105 107,496 -44,069 -29.08 3,877 -12.54 0.0551
2020-11-12 2020-09-30 13F ARCH CAP GROUP ORD G0450A105 151,565 -215,695 -58.73 4,433 -57.87 0.0633
2020-08-14 2020-06-30 13F ARCH CAP GROUP ORD G0450A105 367,260 265,853 262.16 10,522 264.59 0.1544
2020-05-15 2020-03-31 13F ARCH CAP GROUP ORD G0450A105 101,407 101,407 2,886 0.1185
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.