ARK Investment Management · Cathie Wood · Q2 2026
Rotation toward high-conviction AI/tech and energy space exposure, even as select legacy tech and biotech were pared.
Reported value
$15.4B
Filed 2026-08-14
Positions
191
Quarter ended 2026-06-30
Top 10 weight
39.5%
Form 13F reports long US-listed positions only, up to 45 days after quarter end. It excludes shorts, cash, and non-US holdings, so the live book can differ.
ARK Investment Management reported a $15.40B US-listed portfolio in its Q2 2026 Form 13F, filed with the SEC on 2026-08-14 for the quarter ended 2026-06-30. The book holds 191 positions, led by Tesla at 7.5% of reported value; the top three together account for 18%. Against the Q1 2026 filing, the manager opened 16 new positions, added to 78, trimmed 93, and exited 7.
Top 12 holdings
Portfolio allocation
- TeslaTSLA7.5%
- Advanced Micro DevicesAMD5.3%
- Space Exploration TechnologiesSPCX5.0%
- Tempus AITEM3.8%
- Robinhood MarketsHOOD3.4%
- Crispr Therapeutics AgCRSP3.4%
- ShopifySHOP3.1%
- Twist BioscienceTWST3.0%
- 10X GenomicsTXG2.5%
- Amazon.ComAMZN2.5%
- Other holdings60.5%
Share of reported 13F value
| # | Holding | Action | Weight | Value | Shares vs prior quarter |
|---|---|---|---|---|---|
| 1 | TeslaTSLA | Trimmed | 7.5% | $1.16B | -2.5% |
| 2 | Advanced Micro DevicesAMD | Trimmed | 5.3% | $823M | -47.8% |
| 3 | Space Exploration TechnologiesSPCX | New | 5.0% | $765M | New |
| 4 | Tempus AITEM | Added | 3.8% | $581M | +4.3% |
| 5 | Robinhood MarketsHOOD | Trimmed | 3.4% | $525M | -12.8% |
| 6 | Crispr Therapeutics AgCRSP | Trimmed | 3.4% | $516M | -16.4% |
| 7 | ShopifySHOP | Trimmed | 3.1% | $475M | -0.5% |
| 8 | Twist BioscienceTWST | Trimmed | 3.0% | $468M | -28.3% |
| 9 | 10X GenomicsTXG | Trimmed | 2.5% | $384M | -14.6% |
| 10 | Amazon.ComAMZN | Added | 2.5% | $379M | +17.4% |
| 11 | Palantir TechnologiesPLTR | Added | 2.4% | $375M | +3.3% |
| 12 | AlphabetGOOG | Added | 2.4% | $369M | +44.8% |
| Other holdings | 55.7% | $8.58B |
Values and share counts as reported for 2026-06-30; weights are share of reported 13F value.
Actions compare share counts against the prior quarter's filing, so they do not move with price.
New positions and exits
New positions
- Space Exploration Technologies$765M
- Cerebras Systems$169M
- X-Energy$99.4M
- Snowflake$68.6M
- Alphabet$50.1M
- Alamar Biosciences$37.2M
- Honeywell International$5.21M
- Honeywell Aerospace$5.14M
- Octave Intelligence$145K
- State Street Spdr S&P Biotech ETF$14.8K
- Ishares Expanded Tech-Software Sector ETF$5.11K
- State Street Spdr S&P Capital Markets ETF$2.77K
Closed out
- Honeywell International$8.75M
- Brera Holdings$7.60M
- Intercontinental Exchange$4.59M
- Palo Alto Networks$1.74M
- Salesforce$1.13M
- Pinterest$661K
- iShares Russell 1000 ETF$125
Read on the quarter
What the moves add up to
Q2 2026’s activity shows a clear shift in emphasis rather than broad de-risking: total holdings increased by adding 78 positions while trims led overall with 93 actions, alongside 16 new entries and 7 exits. Concentration remains high, with the top 10 accounting for 39.4% of the portfolio, and the largest weights in that group were reinforced on the downside by trims.
The most notable theme is an AI and platform tilt. In the top cohort, Tempus AI was added (3.77% weight) and Amazon.Com (2.46%) and Palantir Technologies (2.43%) were also adds, while Alphabet received an add in the top rows (GOOG at 2.39%) with a very large reported share increase. This is consistent with broader new-position activity that includes Space Exploration Technologies (SPCX) and Cerebras Systems (CBRS), as well as Snowflake (SNOW), aligning the incremental risk with computing/data infrastructure.
That rotation coincided with meaningful reductions in some legacy or concentrated exposures. Tesla was trimmed at 7.54% weight, while AMD saw a steep share decrease and several biotech/genomics names were cut, including CRSP (3.35%) and TWST (3.04%), alongside multiple smaller trims like HOOD (3.41%) and TXG (2.49%).
Context
How to read this filing
A Form 13F is a quarterly snapshot institutional managers with over $100M in US-listed assets must file within 45 days of quarter end. It shows long equity positions only: no short book, no cash, no non-US listings, no timing inside the quarter. Treat it as a delayed map of where the manager's conviction sat on the reporting date — not a live portfolio, and not a buy list.
