Winton Group Ltd and Woodline Partners LP: where the books meet
At Q2 2026, at least 15% of the two 13F books was the same, across 134 stocks both listed, against 1.6% at Q4 2019. Overlap is the smaller of each shared stock’s two weights, added up: the part of one book that could be swapped for the other’s without a trade.
- Q4 2019: 1.6%, 14 in both
- Q1 2020: 4.3%, 31 in both
- Q2 2020: 4.2%, 29 in both
- Q3 2020: 3.7%, 27 in both
- Q4 2020: 5.2%, 42 in both
- Q1 2021: 5.2%, 44 in both
- Q2 2021: 4.8%, 37 in both
- Q3 2021: 8.1%, 55 in both
- Q4 2021: 10.0%, 65 in both
- Q1 2022: 11%, 60 in both
- Q2 2022: 11%, 66 in both
- Q3 2022: 9.4%, 71 in both
- Q4 2022: 12%, 90 in both
- Q1 2023: 13%, 94 in both
- Q2 2023: 12%, 94 in both
- Q3 2023: 11%, 105 in both
- Q4 2023: 9.0%, 94 in both
- Q1 2024: 10%, 96 in both
- Q2 2024: 10.0%, 100 in both
- Q3 2024: 12%, 91 in both
- Q4 2024: 12%, 116 in both
- Q1 2025: 15%, 144 in both
- Q2 2025: 16%, 142 in both
- Q3 2025: 19%, 150 in both
- Q4 2025: 20%, 142 in both
- Q1 2026: 19%, 157 in both
- Q2 2026: 15%, 134 in both
Only quarters both managers filed. Where either filing has more positions than are read each quarter, a stock both hold below that range is not counted, so the figure is a floor.
What the overlap is made of, Q2 2026
Stocks both listed, by the smaller of the two weights. A weight is the stock’s share of that manager’s reported book, which says how large the position is, not how strongly it is held.
| Stock | Winton Group Ltd | Woodline Partners LP |
|---|---|---|
| Nvidia Corp(NVDA) | 0.5%Trimmed | 3.3%Added |
| Amazon Com Inc(AMZN) | 0.5%Added | 1.8%Trimmed |
| Broadcom Inc(AVGO) | 0.5%Added | 1.4%Added |
| Alphabet Inc(GOOGL) | 0.5%Added | 1.2%Trimmed |
| Facebook Inc(META) | 0.5%Added | 1.4%Added |
| Berkshire Hathaway Inc Del(BRK-B) | 0.5%Trimmed | 0.6%Added |
| Thermo Fisher Scientific Inc(TMO) | 0.5%New | 0.5%Trimmed |
| Visa Inc(V) | 0.5%Added | 0.4%Added |
| American Intl Group Inc(AIG) | 0.4%Added | 0.4%Added |
| Wal-mart Stores Inc(WMT) | 0.4%New | 0.3%Trimmed |
| Tesla Inc(TSLA) | 0.3%Added | 0.8%Added |
| 10950a106(BTSG) | 0.3%New | 0.3%Held |
| 71377a103(PFGC) | 0.2%New | 0.3%Trimmed |
| Autodesk Inc(ADSK) | 0.2%Added | 0.3%Added |
| Ge Vernova Inc(GEV) | 0.5%Trimmed | 0.2%Trimmed |
| Micron Technology Inc(MU) | 0.2%Trimmed | 1.0%Trimmed |
| Incyte Corp(INCY) | 0.9%Added | 0.2%Trimmed |
| Medline Inc(MDLN) | 0.5%Added | 0.2%Added |
| Hanover Ins Group Inc(THG) | 0.2%Added | 0.2%Trimmed |
| Mettler Toledo International(MTD) | 0.2%Added | 0.4%Added |
and 114 smaller ones
Moved different ways in Q2 2026
Stocks one manager started or added to while the other trimmed or sold out, between the same two quarter ends. A 13F shows the quarter ends, never when in between anything was bought or sold, or why.
- Nvidia Corp(NVDA)Winton Group Ltd trimmed; Woodline Partners LP added
- Microsoft Corp(MSFT)Winton Group Ltd trimmed; Woodline Partners LP added
- Amazon Com Inc(AMZN)Winton Group Ltd added; Woodline Partners LP trimmed
- Alphabet Inc(GOOGL)Winton Group Ltd added; Woodline Partners LP trimmed
- Philip Morris Intl Inc(PM)Winton Group Ltd sold out; Woodline Partners LP added
- Arrow Electrs Inc(ARW)Winton Group Ltd added; Woodline Partners LP trimmed
- Berkshire Hathaway Inc Del(BRK-B)Winton Group Ltd trimmed; Woodline Partners LP added
- Johnson CTLS Intl PLC(JCI)Winton Group Ltd trimmed; Woodline Partners LP added
- Chubb Limited(CB)Winton Group Ltd trimmed; Woodline Partners LP added
- Thermo Fisher Scientific Inc(TMO)Winton Group Ltd started; Woodline Partners LP trimmed
- CVS Caremark Corporation(CVS)Winton Group Ltd sold out; Woodline Partners LP added
- Wal-mart Stores Inc(WMT)Winton Group Ltd started; Woodline Partners LP trimmed
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