13F filer · CIK 1697748 ↗
ARK Invest
You are looking at Q1 2018. See the latest, Q2 2026 →
Reported value
$2.01B
+60% on the quarter before
Positions
199
13 new · 14 sold out
Top 10
36.8%
of the value
Est. gain
+$69.1M
on stocks held all quarter
Est. return
+6.0%
on those stocks since Q4 2017
Positions as of Mar 31, 2018, from ARK Invest's 13F filing with the SEC. A 13F lists a manager's US-listed stocks and options at a quarter end and is filed up to 45 days later, so the fund may hold something else today. It leaves out short positions, cash and holdings outside the US.
Portfolio at a glance
- New
- Added
- Cut
- Same
- Options
The 24 largest positions, 65% of the reported value, each sized by its share, colored by what the fund did with it since Q4 2017. Striped tiles are options.
Largest buys
Since Q4 2017, by estimated size: the change in shares at the quarter-end price, since a 13F gives no trade prices. Percentages are the position's share of the portfolio, before and after.
- Intellia Therapeutics Inc~$47.0MAdded · 2.1% → 3.8%+2,227,827 shares
- Tesla~$46.4MAdded · 3.5% → 4.2%+174,477 shares
- Stratasys Ltd~$41.9MAdded · 4.4% → 4.8%+2,077,005 shares
- Baidu~$38.2MAdded · 2.8% → 3.6%+171,183 shares
- Nvidia~$33.8MAdded · 2.4% → 3.5%+145,831 shares
- Medidata Solutions Inc~$24.2MAdded · 1.6% → 2.2%+385,893 shares
- Invitae Corp~$22.6MAdded · 1.5% → 1.6%+4,822,477 shares
- Apple~$21.7MAdded · 1.6% → 2.1%+129,118 shares
- Lendingclub Corp~$21.4MAdded · 1.9% → 2.1%+6,119,314 shares
- Redfin Corp~$20.8MAdded · 1.4% → 1.7%+909,286 shares
Largest sells
Since Q4 2017, by estimated size: the change in shares at the quarter-end price, since a 13F gives no trade prices. Percentages are the position's share of the portfolio, before and after.
- Juno Therapeutics Inc~$31.2MSold out · 2.5% → 0.0%−682,495 shares
- Alphabet~$13.8MCut · 2.3% → 0.7%−13,377 shares
- Foundation Medicine Inc~$13.5MCut · 1.4% → 0.3%−171,251 shares
- Ctrip.Com International-ADR~$6.9MCut · 0.5% → 0.0%−148,287 shares
- Lendingtree Inc~$4.7MCut · 1.2% → 0.5%−14,416 shares
- Mellanox Technologies Ltd~$3.5MCut · 0.3% → 0.0%−48,418 shares
- Akamai~$2.4MSold out · 0.2% → 0.0%−37,448 shares
- Impinj Inc~$2.0MSold out · 0.2% → 0.0%−89,057 shares
- Blackberry Ltd~$1.6MCut · 0.1% → 0.0%−105,097 shares
- Byd Co Ltd-Unsponsored ADR~$1.6MSold out · 0.1% → 0.0%−92,036 shares
Holdings
As of Mar 31, 2018. Changes are in shares against Dec 31, 2017, so a price move alone never reads as a buy or a sale.
| Holding | Value | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stratasys LtdCommon Stock · shares +75% · price +1.1% | 4.8% | $97.6M | +$607,840 | ||||||||
| TeslaCommon Stock · shares +124% · price −14.5% | 4.2% | $83.9M | −$6.4M | ||||||||
| AmazonCommon Stock · shares +23% · price +23.8% | 3.9% | $78.9M | +$12.3M | ||||||||
| Twitter IncCommon Stock · shares +22% · price +20.8% | 3.9% | $78.2M | +$11.1M | ||||||||
| Intellia Therapeutics IncCommon Stock · shares +162% · price +9.7% | 3.8% | $76.0M | +$2.6M | ||||||||
| BaiduADR · shares +114% · price −4.7% | 3.6% | $71.8M | −$1.7M | ||||||||
| NvidiaCommon Stock · shares +93% · price +19.7% | 3.5% | $70.3M | +$6.0M | ||||||||
| Athenahealth IncCommon Stock · shares +29% · price +7.5% | 3.5% | $70.1M | +$3.8M | ||||||||
| Illumina IncCommon Stock · shares +51% · price +8.2% | 3.0% | $59.5M | +$3.0M | ||||||||
| NetflixCommon Stock · shares +33% · price +53.9% | 2.7% | $54.6M | +$14.4M | ||||||||
| Editas Medicine IncCommon Stock · shares +46% · price +7.9% | 2.7% | $53.7M | +$2.7M | ||||||||
| BlockCommon Stock · shares +61% · price +41.9% | 2.7% | $53.7M | +$9.8M | ||||||||
| Jd.Com Inc-ADRADR · shares +72% · price −2.2% | 2.3% | $47.1M | −$630,487 | ||||||||
| Medidata Solutions IncCommon Stock · shares +118% · price −0.9% | 2.2% | $44.7M | −$182,960 | ||||||||
| AppleCommon Stock · shares +107% · price −0.9% | 2.1% | $41.8M | −$174,232 | ||||||||
| Lendingclub CorpCommon Stock · shares +105% · price −15.3% | 2.1% | $41.8M | −$3.7M | ||||||||
| Xilinx IncCommon Stock · shares +93% · price +7.2% | 1.9% | $39.2M | +$1.4M | ||||||||
| 2u IncCommon Stock · shares +25% · price +30.3% | 1.9% | $38.6M | +$7.2M | ||||||||
| Tencent Holdings Ltd-Uns ADRADR · shares +64% · price +2.6% | 1.8% | $37.2M | +$581,503 | ||||||||
| SalesforceCommon Stock · shares +36% · price +13.8% | 1.8% | $36.0M | +$3.2M | ||||||||
| Redfin CorpCommon Stock · shares +159% · price −27.1% | 1.7% | $33.8M | −$4.8M | ||||||||
| Bluebird Bio IncCommon Stock · shares +63% · price −4.1% | 1.7% | $33.7M | −$892,289 | ||||||||
| Invitae CorpCommon Stock · shares +229% · price −48.3% | 1.6% | $32.5M | −$9.2M | ||||||||
| Splunk IncCommon Stock · shares +34% · price +18.8% | 1.6% | $32.1M | +$3.8M | ||||||||
| Red Hat IncCommon Stock · shares +36% · price +24.5% | 1.6% | $31.6M | +$4.6M | ||||||||
| Total · 199 positions | 100% | $2.01B | +$69.1M |
Price is a stock's reported value over its shares at the quarter end. The estimated gain is the shares held at both quarter ends times the change in that price: shares bought or sold during the quarter add nothing, options are left out, and a stock split is read into the earlier share count and price.
What made money
From Q4 2017 to Q1 2018: 186 stocks held throughout, up $69.1M (+6.0%).
- Netflix+$14.4M+54%
- Amazon+$12.3M+24%
- Twitter Inc+$11.1M+21%
- Block+$9.8M+42%
- Cerus Corp+$7.5M+62%
- Lendingclub Corp−$3.7M−15%
- Seres Therapeutics Inc−$4.6M−28%
- Redfin Corp−$4.8M−27%
- Tesla−$6.4M−15%
- Invitae Corp−$9.2M−48%
Estimated as in the holdings table: shares held at both quarter ends times the change in price; options left out, 1 split read into the share counts.
Reported value by quarter
The total value of each quarter's 13F at that quarter end. It moves with prices as well as with buying and selling. Pick a quarter to see what the fund held then.
Every quarter's filing
| Quarter | Reported value | Filing | |
|---|---|---|---|
| Q2 2026 | Aug 14, 2026 | $15.40B+20% | SEC ↗ |
| Q1 2026 | May 12, 2026 | $12.86B−15% | SEC ↗ |
| Q4 2025 | Feb 11, 2026 | $15.07B−10% | SEC ↗ |
| Q3 2025 | Nov 12, 2025 | $16.80B+23% | SEC ↗ |
| Q2 2025 | Jul 30, 2025 | $13.64B+37% | SEC ↗ |
| Q1 2025 | May 7, 2025 | $9.99B−17% | SEC ↗ |
| Q4 2024 | Feb 4, 2025 | $12.01B+10% | SEC ↗ |
| Q3 2024 | Oct 31, 2024 | $10.93B−3% | SEC ↗ |
| Q2 2024 | Jul 26, 2024 | $11.27B−22% | SEC ↗ |
| Q1 2024 | Apr 18, 2024 | $14.44B−14% | SEC ↗ |
| Q4 2023 | Jan 17, 2024 | $16.89B+29% | SEC ↗ |
| Q3 2023 | Oct 18, 2023 | $13.07B−13% | SEC ↗ |
| Q2 2023 | Jul 10, 2023 | $15.10B+4% | SEC ↗ |
| Q1 2023 | Apr 17, 2023 | $14.55B+26% | SEC ↗ |
| Q4 2022 | Jan 24, 2023 | $11.54B−20% | SEC ↗ |
| Q3 2022 | Oct 17, 2022 | $14.35B−15% | SEC ↗ |
| Q2 2022 | Jul 11, 2022 | $16.91B−29% | SEC ↗ |
| Q1 2022 | Apr 18, 2022 | $23.96B−28% | SEC ↗ |
| Q4 2021 | Jan 28, 2022 | $33.08B−21% | SEC ↗ |
| Q3 2021 | Nov 12, 2021 | $41.64B−23% | SEC ↗ |
| Q2 2021 | Aug 5, 2021 | $53.74B+7% | SEC ↗ |
| Q1 2021 | May 13, 2021 | $50.34B+34% | SEC ↗ |
| Q4 2020 | Feb 12, 2021 | $37.59B+123% | SEC ↗ |
| Q3 2020 | Oct 30, 2020 | $16.86B+81% | SEC ↗ |
| Q2 2020 | Aug 11, 2020 | $9.30B+132% | SEC ↗ |
| Q1 2020 | May 14, 2020 | $4.01B+1% | SEC ↗ |
| Q4 2019 | Jan 31, 2020 | $3.96B−13% | SEC ↗ |
| Q3 2019 | Nov 12, 2019 | $4.58B+15% | SEC ↗ |
| Q2 2019 | Jul 30, 2019 | $3.97B+13% | SEC ↗ |
| Q1 2019 | May 13, 2019 | $3.50B+42% | SEC ↗ |
| Q4 2018 | Feb 11, 2019 (amended) | $2.46B−26% | SEC ↗ |
| Q3 2018 | Nov 7, 2018 | $3.31B+21% | SEC ↗ |
| Q2 2018 | Aug 7, 2018 | $2.73B+36% | SEC ↗ |
| Q1 2018 | May 14, 2018 | $2.01B+60% | SEC ↗ |
| Q4 2017 | Feb 12, 2018 | $1.26B+53% | SEC ↗ |
| Q3 2017 | Nov 9, 2017 | $819.3M+60% | SEC ↗ |
| Q2 2017 | Aug 11, 2017 | $513.6M+48% | SEC ↗ |
| Q1 2017 | May 15, 2017 | $346.9M+26% | SEC ↗ |
| Q4 2016 | Feb 13, 2017 | $274.9M | SEC ↗ |