Winton Group Ltd holds a diversified book of 1080 stocks worth $2.9B as of Q1 2026 (disclosed May 12, 2026, a ~45-day 13F lag). This quarter they opened Invesco Senior Loan ETF and trimmed Ishares Bitcoin Trust ETF. Their largest long position is Berkshire Hathaway Inc-CL A at 5% of the equity book. Cloning the disclosed picks since 2014 would be +262% (+11.4%/yr). That is a simulation of the disclosed long book, not audited returns.
The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
This fund page is the Follow view. The Build view lets your agent pull holdings, quarter changes, overlap, and source filings through API or MCP.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/funds/1612063/holdings"
Use Arkolith to show WINTON GROUP Ltd's latest holdings, largest changes, and filing provenance.
Following at the filing date actually beat the quarter-end book by 36.7 points over this window.
Growth of $10,000 cloning Winton Group Ltd's disclosed long 13F book, rebalanced on each filing date (so it reflects the ~45-day reporting lag, no look-ahead), total-return basis (dividends reinvested), derived from end-of-day prices. “Their reported book” values the same picks from quarter-end, before they were public. S&P 500 is SPY total return over the same window. Excludes shorts, cash, options and non-13F holdings. Not investment advice.
Top-heavy: diversified book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
97% mapped to company sectors
Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.
Estimated $ traded · quarter-end prices, no cost basis
Bars show each stock's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Berkshire Hathaway Inc Del CL A | $155.8M | 217 | 5.5% | —Held | |
| 2 | Invesco Exch Traded FD TR II SR LN ETF | $40.8M | 2.00M | 1.4% | ▲New New position | |
| 3 | Ge Vernova Inc COM | $36.9M | 42.3K | 1.3% | ▲+65% Added · +17K sh | |
| 4 | Booking Holdings Inc COM | $35.7M | 8.5K | 1.3% | ▲New New position | |
| 5 | Netflix Inc COM | $33.3M | 346.4K | 1.2% | ▲+368% Added · +272K sh | |
| 6 | Ishares Bitcoin Trust ETF SHS BEN INT | $25.4M | 661.3K | 0.9% | ▼−59% Reduced · −942K sh | |
| 7 | CSX Corp COM | $24.5M | 596.1K | 0.9% | ▲+60% Added · +223K sh | |
| 8 | Solstice Advanced Matls Inc COM SHS | $23.4M | 306.6K | 0.8% | ▼−42% Reduced · −225K sh | |
| 9 | Kroger Co COM | $22.2M | 306.9K | 0.8% | ▲+516% Added · +257K sh | |
| 10 | Aes Corp COM | $22.0M | 1.56M | 0.8% | ▲52× Added · +1.5M sh | |
| 11 | Entegris Inc COM | $21.3M | 181.5K | 0.7% | ▼−5.2% Reduced · −10K sh | |
| 12 | Electronic Arts Inc COM | $20.8M | 102.2K | 0.7% | ▲+11% Added · +10K sh | |
| 13 | Hologic Inc COM | $20.8M | 275.0K | 0.7% | ▲+8.6% Added · +22K sh | |
| 14 | Masimo Corp COM | $20.1M | 112.8K | 0.7% | ▲New New position | |
| 15 | Stifel Finl Corp COM | $18.3M | 247.0K | 0.6% | ▲New New position | |
| 16 | T-Mobile US Inc COM | $17.8M | 84.8K | 0.6% | ▲New New position | |
| 17 | Cme Group Inc COM | $17.7M | 60.0K | 0.6% | ▼−0.1% Reduced · −82 sh | |
| 18 | Bunge Global Sa COM SHS | $17.0M | 133.8K | 0.6% | ▲39× Added · +130K sh | |
| 19 | Microsoft Corp COM | $16.7M | 45.1K | 0.6% | ▲+30% Added · +10K sh | |
| 20 | Old Dominion Freight Line In COM | $16.5M | 84.3K | 0.6% | ▲+444% Added · +69K sh | |
| 21 | Powell Inds Inc COM | $16.4M | 30.4K | 0.6% | ▲+709% Added · +27K sh | |
| 22 | Incyte Corp COM | $16.3M | 173.0K | 0.6% | ▲+67% Added · +70K sh | |
| 23 | Masco Corp COM | $16.2M | 267.9K | 0.6% | ▼−2.5% Reduced · −7K sh | |
| 24 | Nvidia Corporation COM | $16.1M | 92.5K | 0.6% | ▲+10% Added · +9K sh | |
| 25 | Palantir Technologies Inc CL A | $16.1M | 110.2K | 0.6% | ▲New New position | |
| 26 | Shopify Inc CL A SUB VTG SHS | $15.7M | 132.1K | 0.5% | ▲+169% Added · +83K sh | |
| 27 | Nu Hldgs Ltd ORD SHS CL A | $15.6M | 1.08M | 0.5% | ▲+26% Added · +225K sh | |
| 28 | Dell Technologies Inc CL C | $15.2M | 92.4K | 0.5% | ▲16× Added · +87K sh | |
| 29 | Agilent Technologies Inc COM | $14.8M | 129.5K | 0.5% | ▲45× Added · +127K sh | |
| 30 | MSC Indl Direct Inc CL A | $14.6M | 158.1K | 0.5% | ▲21× Added · +150K sh | |
| 31 | Berkshire Hathaway Inc Del CL B NEW | $14.5M | 30.4K | 0.5% | ▲New New position | |
| 32 | Gxo Logistics Incorporated COMMON STOCK | $14.5M | 279.6K | 0.5% | ▲+13% Added · +32K sh | |
| 33 | Philip Morris Intl Inc COM | $14.5M | 87.6K | 0.5% | ▲New New position | |
| 34 | Everus Constr Group COM | $14.3M | 121.1K | 0.5% | ▲+7.0% Added · +8K sh | |
| 35 | Mercadolibre Inc COM | $13.6M | 7.9K | 0.5% | ▲New New position | |
| 36 | Epam Sys Inc COM | $13.6M | 100.3K | 0.5% | ▲+0.3% Added · +355 sh | |
| 37 | Target Corp COM | $13.4M | 110.9K | 0.5% | ▲New New position | |
| 38 | Visa Inc COM CL A | $13.3M | 44.1K | 0.5% | ▲+5.2% Added · +2K sh | |
| 39 | Versant Media Group Inc COM CL A | $13.3M | 359.1K | 0.5% | ▲New New position | |
| 40 | Core Natural Resources Inc COM SHS | $13.2M | 125.8K | 0.5% | ▲New New position | |
| 41 | Fidelity Wise Origin Bitcoin SHS | $12.9M | 218.1K | 0.5% | ▼−58% Reduced · −304K sh | |
| 42 | Medtronic PLC SHS | $12.3M | 142.5K | 0.4% | ▲+35% Added · +37K sh | |
| 43 | Dow Hldgs Inc COM | $12.2M | 292.2K | 0.4% | ▲11× Added · +265K sh | |
| 44 | Rocket Cos Inc COM CL A | $11.9M | 831.6K | 0.4% | ▲+12% Added · +86K sh | |
| 45 | Cameco Corp COM | $11.6M | 107.1K | 0.4% | ▼−23% Reduced · −31K sh | |
| 46 | Regeneron Pharmaceuticals COM | $11.4M | 14.8K | 0.4% | ▲+435% Added · +12K sh | |
| 47 | Howmet Aerospace Inc COM | $11.2M | 48.6K | 0.4% | ▲+650% Added · +42K sh | |
| 48 | Silicon Laboratories Inc COM | $11.2M | 53.8K | 0.4% | ▲New New position | |
| 49 | Amphenol Corp CL A | $11.1M | 87.7K | 0.4% | ▼−21% Reduced · −24K sh | |
| 50 | Merit Med Sys Inc COM | $10.9M | 158.8K | 0.4% | ▲+14% Added · +20K sh |
As-of date vs the date the SEC received each filing
| Quarter | As of | Filed | Positions | Value | Form |
|---|---|---|---|---|---|
| Q1 2026 | Mar 31, 2026 | May 12, 2026 | 1,080 | $2.9B | 13F-HR |
| Q4 2025 | Dec 31, 2025 | Feb 11, 2026 | 911 | $2.9B | 13F-HR |
| Q3 2025 | Sep 30, 2025 | Nov 13, 2025 | 697 | $2.7B | 13F-HR |
| Q2 2025 | Jun 30, 2025 | Aug 14, 2025 | 807 | $2.0B | 13F-HR |
| Q1 2025 | Mar 31, 2025 | May 15, 2025 | 656 | $1.6B | 13F-HR |
| Q4 2024 | Dec 31, 2024 | Feb 12, 2025 | 594 | $1.5B | 13F-HR |
| Q3 2024 | Sep 30, 2024 | Nov 12, 2024 | 605 | $1.4B | 13F-HR |
| Q2 2024 | Jun 30, 2024 | Aug 9, 2024 | 558 | $1.5B | 13F-HR |
| Q1 2024 | Mar 31, 2024 | May 14, 2024 | 582 | $1.4B | 13F-HR |
| Q4 2023 | Dec 31, 2023 | Feb 12, 2024 | 729 | $1.4B | 13F-HR |
| Q3 2023 | Sep 30, 2023 | Nov 13, 2023 | 756 | $1.2B | 13F-HR |
| Q2 2023 | Jun 30, 2023 | Aug 14, 2023 | 745 | $1.2B | 13F-HR |
| Q1 2023 | Mar 31, 2023 | May 12, 2023 | 941 | $1.6B | 13F-HR |
| Q4 2022 | Dec 31, 2022 | Feb 14, 2023 | 902 | $1.5B | 13F-HR |
| Q3 2022 | Sep 30, 2022 | Nov 10, 2022 | 921 | $1.5B | 13F-HR |
| Q2 2022 | Jun 30, 2022 | Aug 10, 2022 | 931 | $1.9B | 13F-HR |
| Q1 2022 | Mar 31, 2022 | May 11, 2022 | 936 | $1.9B | 13F-HR |
| Q4 2021 | Dec 31, 2021 | Feb 10, 2022 | 989 | $1.7B | 13F-HR |
| Q3 2021 | Sep 30, 2021 | Oct 28, 2021 | 1,315 | $1.8B | 13F-HR |
| Q2 2021 | Jun 30, 2021 | Aug 10, 2021 | 1,409 | $1.9B | 13F-HR |
| Q1 2021 | Mar 31, 2021 | Jul 21, 2021 | 1,360 | $1.8B | 13F-HR |
| Q4 2020 | Dec 31, 2020 | Feb 12, 2021 | 1,299 | $1.4B | 13F-HR |
| Q3 2020 | Sep 30, 2020 | Oct 30, 2020 | 1,451 | $3.1B | 13F-HR |
| Q2 2020 | Jun 30, 2020 | Aug 5, 2020 | 1,428 | $3.9B | 13F-HR |
Holdings from SEC EDGAR 13F-HR filings, updated quarterly ~45 days after quarter-end. Public domain. The book and weighting are long equity only; disclosed put/call options are listed separately and excluded from those totals. The performance line is a simulation of the disclosed long book, not an audited return.