D1 Capital Partners LP and ARK Investment Management LLC: where the books meet
At Q2 2026, 9.2% of the two 13F books was the same, across 16 stocks both listed, against 8.5% at Q4 2018. 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 2018: 8.5%, 10 in both
- Q1 2019: 2.3%, 4 in both
- Q2 2019: 3.6%, 8 in both
- Q3 2019: 3.4%, 9 in both
- Q4 2019: 3.7%, 8 in both
- Q1 2020: 1.9%, 10 in both
- Q2 2020: 1.6%, 7 in both
- Q3 2020: 2.6%, 7 in both
- Q4 2020: 4.1%, 11 in both
- Q1 2021: 5.2%, 10 in both
- Q2 2021: 6.4%, 14 in both
- Q3 2021: 4.5%, 16 in both
- Q4 2021: 7.2%, 16 in both
- Q1 2022: 1.3%, 7 in both
- Q2 2022: 3.0%, 9 in both
- Q3 2022: 4.2%, 8 in both
- Q4 2022: 2.3%, 8 in both
- Q1 2023: 1.6%, 6 in both
- Q2 2023: 3.7%, 8 in both
- Q3 2023: 3.3%, 7 in both
- Q4 2023: 2.3%, 6 in both
- Q1 2024: 3.6%, 6 in both
- Q2 2024: 3.0%, 5 in both
- Q3 2024: 5.4%, 8 in both
- Q4 2024: 5.0%, 9 in both
- Q1 2025: 2.5%, 6 in both
- Q2 2025: 2.2%, 5 in both
- Q3 2025: 3.6%, 8 in both
- Q4 2025: 5.7%, 9 in both
- Q1 2026: 6.8%, 10 in both
- Q2 2026: 9.2%, 16 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 | D1 Capital Partners LP | ARK Investment Management LLC |
|---|---|---|
| Space Exploration Techn Corp(SPCX) | 62%New | 5.0%New |
| Facebook Inc(META) | 0.9%New | 0.9%Added |
| Tesla Inc(TSLA) | 0.5%New | 7.5%Trimmed |
| Doordash Inc(DASH) | 0.7%Trimmed | 0.5%Added |
| Amazon Com Inc(AMZN) | 0.4%Trimmed | 2.5%Added |
| Alphabet Inc(GOOGL) | 0.8%Added | 0.3%New |
| Shopify Inc(SHOP) | 0.3%New | 3.1%Trimmed |
| Mercadolibre Inc(MELI) | 1.4%Trimmed | 0.2%Trimmed |
| Spotify Technology S A(SPOT) | 0.8%Added | 0.2%Added |
| Intuitive Surgical Inc(ISRG) | 0.7%New | 0.2%Added |
| Coreweave Inc(CRWV) | 0.2%New | 1.7%Added |
| Snowflake Inc(SNOW) | 0.2%New | 0.4%New |
| Sea LTD(SE) | 0.5%Trimmed | under 0.1%Trimmed |
| 15675d103(CBRS) | under 0.1%New | 1.1%New |
| Nu HLDGS LTD(NU) | 1.7%Added | under 0.1%Trimmed |
| Alphabet Inc-cl C(GOOG) | under 0.1%New | 2.4%Added |
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.
- Tesla Inc(TSLA)D1 Capital Partners LP started; ARK Investment Management LLC trimmed
- Nu HLDGS LTD(NU)D1 Capital Partners LP added; ARK Investment Management LLC trimmed
- Shopify Inc(SHOP)D1 Capital Partners LP started; ARK Investment Management LLC trimmed
- Amazon Com Inc(AMZN)D1 Capital Partners LP trimmed; ARK Investment Management LLC added
- Nvidia Corporation(NVDA)D1 Capital Partners LP sold out; ARK Investment Management LLC added
- Doordash Inc(DASH)D1 Capital Partners LP trimmed; ARK Investment Management LLC added
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