Arch Capital Group Ltd.
US ˙ NasdaqGS ˙ BMG0450A1053

SecurityACGL / Arch Capital Group Ltd.
InstitutionWalleye Capital LLC
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Walleye Capital LLC ownership in ACGL / Arch Capital Group Ltd.

On May 13, 2026 - Walleye Capital LLC filed a 13F-HR/A form disclosing ownership of 0 shares of Arch Capital Group Ltd. (US:ACGL) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 37,942 shares of Arch Capital Group Ltd.. This represents a change in shares of -100.00% during the quarter. The current value of the position is $0 USD.

Walleye Capital LLC has a history of taking positions in derivatives of the underlying security (ACGL) in the form of stock options. The firm currently holds call options representing 9,600 of underlying shares valued at $921,504 USD and put options representing 3,900 of underlying shares valued at $374,361 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

ACGL / Arch Capital Group Ltd. Historical Put/Call Ratio
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)
2026-05-13 2026-03-31 13F/A-1 ARCH CAP GROUP ORD G0450A105 0 -37,942 -100.00 0 -100.00
2026-05-08 2026-03-31 13F ARCH CAP GROUP ORD G0450A105 0 -37,942 0
2026-02-13 2025-12-31 13F ARCH CAP GROUP ORD G0450A105 37,942 32,116 551.25 3,639 589.20 0.0112
2025-11-14 2025-09-30 13F ARCH CAP GROUP ORD G0450A105 5,826 -1,401 -19.39 529 -19.76 0.0020
2025-08-13 2025-06-30 13F ARCH CAP GROUP ORD G0450A105 7,227 -34,451 -82.66 658 -83.58 0.0026
2025-05-14 2025-03-31 13F ARCH CAP GROUP ORD G0450A105 41,678 41,669 462,988.89 4,009 0.0181
2025-02-13 2024-12-31 13F ARCH CAP GROUP ORD G0450A105 9 -20,439 -99.96 1 -100.00 0.0000
2024-11-14 2024-09-30 13F ARCH CAP GROUP ORD G0450A105 20,448 15,436 307.98 2,288 352.87 0.0048
2024-08-14 2024-06-30 13F ARCH CAP GROUP ORD G0450A105 5,012 3,421 215.02 506 243.54 0.0009
2024-05-15 2024-03-31 13F ARCH CAP GROUP ORD G0450A105 1,591 1,591 147 0.0003
2023-05-15 2023-03-31 13F ARCH CAP GROUP ORD G0450A105 0 -13,085 -100.00 0 -100.00
2023-02-14 2022-12-31 13F ARCH CAP GROUP ORD G0450A105 13,085 13,085 821 0.0150
2021-08-16 2021-06-30 13F ARCH CAP GROUP ORD G0450A105 0 -24,587 -100.00 0 -100.00
2021-05-17 2021-03-31 13F ARCH CAP GROUP ORD G0450A105 24,587 24,587 943 0.0546
2020-11-16 2020-09-30 13F ARCH CAP GROUP ORD G0450A105 0 -9,504 -100.00 0 -100.00
2020-08-14 2020-06-30 13F ARCH CAP GROUP ORD G0450A105 9,504 9,504 272 0.0607
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-13 2026-03-31 13F/A ARCH CAP GROUP ORD Call 9,600 45.45 922 45.50 n/a n/a n/a
2026-05-08 2026-03-31 13F ARCH CAP GROUP ORD Call 9,600 922 n/a n/a n/a
2026-02-13 2025-12-31 13F ARCH CAP GROUP ORD Call 6,600 2,100.00 633 2,244.44 n/a n/a n/a
2025-11-14 2025-09-30 13F ARCH CAP GROUP ORD Call 300 -97.62 27 -97.65 n/a n/a n/a
2025-08-13 2025-06-30 13F ARCH CAP GROUP ORD Call 12,600 3.28 1,147 -2.22 n/a n/a n/a
2025-05-14 2025-03-31 13F ARCH CAP GROUP ORD Call 12,200 -57.93 1,173 -56.20 n/a n/a n/a
2025-02-13 2024-12-31 13F ARCH CAP GROUP ORD Call 29,000 166.06 2,678 119.69 n/a n/a n/a
2024-11-14 2024-09-30 13F ARCH CAP GROUP ORD Call 10,900 -33.54 1,219 -26.30 n/a n/a n/a
2024-08-14 2024-06-30 13F ARCH CAP GROUP ORD Call 16,400 187.72 1,655 214.45 n/a n/a n/a
2024-05-15 2024-03-31 13F ARCH CAP GROUP ORD Call 5,700 29.55 527 61.35 n/a n/a n/a
2024-02-14 2023-12-31 13F ARCH CAP GROUP ORD Call 4,400 -79.53 327 -80.97 n/a n/a n/a
2023-11-21 2023-09-30 13F/A ARCH CAP GROUP ORD Call 21,500 726.92 1,714 782.99 n/a n/a n/a
2023-11-14 2023-09-30 13F ARCH CAP GROUP ORD Call 21,500 1,714 n/a n/a n/a
2023-08-14 2023-06-30 13F ARCH CAP GROUP ORD Call 2,600 195 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-13 2026-03-31 13F/A ARCH CAP GROUP ORD Put 3,900 680.00 374 695.74 n/a n/a n/a
2026-05-08 2026-03-31 13F ARCH CAP GROUP ORD Put 3,900 374 n/a n/a n/a
2026-02-13 2025-12-31 13F ARCH CAP GROUP ORD Put 500 -92.42 48 -92.14 n/a n/a n/a
2025-11-14 2025-09-30 13F ARCH CAP GROUP ORD Put 6,600 -41.07 599 -41.32 n/a n/a n/a
2025-08-13 2025-06-30 13F ARCH CAP GROUP ORD Put 11,200 -34.88 1,020 -38.39 n/a n/a n/a
2025-05-14 2025-03-31 13F ARCH CAP GROUP ORD Put 17,200 0.58 1,654 4.75 n/a n/a n/a
2025-02-13 2024-12-31 13F ARCH CAP GROUP ORD Put 17,100 584.00 1,579 465.95 n/a n/a n/a
2024-11-14 2024-09-30 13F ARCH CAP GROUP ORD Put 2,500 -71.26 280 -68.19 n/a n/a n/a
2024-08-14 2024-06-30 13F ARCH CAP GROUP ORD Put 8,700 411.76 878 458.60 n/a n/a n/a
2024-05-15 2024-03-31 13F ARCH CAP GROUP ORD Put 1,700 157 n/a n/a n/a
2024-02-14 2023-12-31 13F ARCH CAP GROUP ORD Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-11-21 2023-09-30 13F/A ARCH CAP GROUP ORD Put 5,700 128.00 454 142.78 n/a n/a n/a
2023-11-14 2023-09-30 13F ARCH CAP GROUP ORD Put 5,700 454 n/a n/a n/a
2023-08-14 2023-06-30 13F ARCH CAP GROUP ORD Put 2,500 187 n/a n/a n/a
2023-05-15 2023-03-31 13F ARCH CAP GROUP ORD Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-02-14 2022-12-31 13F ARCH CAP GROUP ORD Put 13,500 848 n/a n/a n/a
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.