ARK Investment Management LLC and Fidelity (FMR LLC): where the books meet
At Q2 2026, at least 17% of the two 13F books was the same, across 56 stocks both listed, against 11% at Q4 2016. 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 2016: 11%, 35 in both
- Q1 2017: 13%, 40 in both
- Q2 2017: 14%, 43 in both
- Q3 2017: 14%, 45 in both
- Q4 2017: 15%, 53 in both
- Q1 2018: 16%, 53 in both
- Q2 2018: 16%, 58 in both
- Q3 2018: 13%, 56 in both
- Q4 2018: 11%, 55 in both
- Q1 2019: 9.9%, 52 in both
- Q2 2019: 9.2%, 54 in both
- Q3 2019: 7.3%, 54 in both
- Q4 2019: 8.4%, 51 in both
- Q1 2020: 6.8%, 54 in both
- Q2 2020: 6.3%, 57 in both
- Q3 2020: 7.1%, 56 in both
- Q4 2020: 11%, 70 in both
- Q1 2021: 9.0%, 74 in both
- Q2 2021: 7.2%, 70 in both
- Q3 2021: 6.1%, 66 in both
- Q4 2021: 5.0%, 77 in both
- Q1 2022: 3.9%, 65 in both
- Q2 2022: 4.5%, 65 in both
- Q3 2022: 4.8%, 38 in both
- Q4 2022: 3.9%, 40 in both
- Q1 2023: 4.4%, 38 in both
- Q2 2023: 4.9%, 41 in both
- Q3 2023: 5.3%, 42 in both
- Q4 2023: 5.0%, 42 in both
- Q1 2024: 6.2%, 52 in both
- Q2 2024: 7.5%, 57 in both
- Q3 2024: 7.6%, 59 in both
- Q4 2024: 9.2%, 63 in both
- Q1 2025: 9.7%, 63 in both
- Q2 2025: 11%, 66 in both
- Q3 2025: 11%, 61 in both
- Q4 2025: 11%, 59 in both
- Q1 2026: 12%, 50 in both
- Q2 2026: 17%, 56 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 | ARK Investment Management LLC | Fidelity (FMR LLC) |
|---|---|---|
| Amazon Com Inc(AMZN) | 2.5%Added | 3.8%Added |
| Space Exploration Technologies Corp(SPCX) | 5.0%New | 2.2%New |
| Alphabet Inc-cl C(GOOG) | 2.4%Added | 1.9%Added |
| Nvidia Corp(NVDA) | 1.8%Added | 8.9%Added |
| Taiwan Semiconductor-sp ADR(TSM) | 1.5%Trimmed | 1.2%Trimmed |
| Broadcom Inc(AVGO) | 1.0%Trimmed | 2.4%Added |
| Facebook Inc(META) | 0.9%Added | 2.3%Trimmed |
| Tesla MTRS Inc(TSLA) | 7.5%Trimmed | 0.7%Added |
| Advanced Micro Devices Inc(AMD) | 5.3%Trimmed | 0.6%Added |
| Eli Lilly & Co(LLY) | 0.6%Added | 1.5%Added |
| Alphabet Inc(GOOGL) | 0.3%New | 3.9%Added |
| Caterpillar Inc(CAT) | 0.4%Trimmed | 0.3%Added |
| Shopify Inc(SHOP) | 3.1%Trimmed | 0.2%Added |
| Datadog Inc(DDOG) | 0.4%Trimmed | 0.2%Added |
| Deere & Co(DE) | 1.6%Trimmed | 0.2%Added |
| ROBLOX Corp(RBLX) | 2.3%Added | 0.2%Added |
| Pure Storage Inc(P) | 0.2%Trimmed | 0.2%Added |
| Cloudflare Inc(NET) | 0.3%Trimmed | 0.1%Trimmed |
| Robinhood Markets Inc(HOOD) | 3.4%Trimmed | 0.1%Added |
| Crowdstrike Holdings Inc(CRWD) | 0.1%Trimmed | 0.3%Added |
and 36 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.
- Broadcom Inc(AVGO)ARK Investment Management LLC trimmed; Fidelity (FMR LLC) added
- Facebook Inc(META)ARK Investment Management LLC added; Fidelity (FMR LLC) trimmed
- Tesla MTRS Inc(TSLA)ARK Investment Management LLC trimmed; Fidelity (FMR LLC) added
- Advanced Micro Devices Inc(AMD)ARK Investment Management LLC trimmed; Fidelity (FMR LLC) added
- Netflix Inc(NFLX)ARK Investment Management LLC added; Fidelity (FMR LLC) trimmed
- Palo Alto Networks Inc(PANW)ARK Investment Management LLC sold out; Fidelity (FMR LLC) added
- Caterpillar Inc(CAT)ARK Investment Management LLC trimmed; Fidelity (FMR LLC) added
- Crowdstrike Holdings Inc(CRWD)ARK Investment Management LLC trimmed; Fidelity (FMR LLC) added
- Shopify Inc(SHOP)ARK Investment Management LLC trimmed; Fidelity (FMR LLC) added
- Datadog Inc(DDOG)ARK Investment Management LLC trimmed; Fidelity (FMR LLC) added
- Deere & Co(DE)ARK Investment Management LLC trimmed; Fidelity (FMR LLC) added
- Pure Storage Inc(P)ARK Investment Management LLC trimmed; Fidelity (FMR LLC) added
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