ARK Invest loads up on CoreWeave Inc — $12.7M in one day
It was the day's biggest move, and it came from ARKK. The rest of the day's trades, plus ARK's scorecard against the S&P 500.
Generated from ARK's own holdings data.
ARK Invest bought roughly $12.7M of CoreWeave Inc (CRWV) on 15 Oct 2026, spread across ARKK. It topped everything else ARK did that session.
Fund sizes barely moved that day, which makes this an active trade rather than cash being put to work.
This isn't a one-off. Across 7 trades in 30 days, ARK has bought a net $72.0M of the stock.
Everything ARK did on 15 Oct 2026
ARK made 13 real moves that day, once money flowing in and out of the funds is stripped out:
| Stock | Funds | Est. value |
|---|---|---|
| CRWV CoreWeave Inc | ARKK | +$12.7M |
| PSNL Personalis IncSold 7 days running | ARKG | −$11.0M |
| TXG 10X Genomics Inc | ARKK | −$8.3M |
| CBRS Cerebras Systems Inc | ARKK | +$8.1M |
| PLTR Palantir Technologies Inc | ARKK | −$4.4M |
| TWST Twist Bioscience Corp | ARKK | −$2.9M |
The bigger picture: ARK's last 30 days
The 30-day picture: Nvidia Corp ($81.0M), CoreWeave Inc ($72.0M), Veracyte Inc ($43.5M) have taken the most new money. The biggest sales over the same period: Advanced Micro Devices ($126.3M), 10X Genomics Inc ($76.2M), Personalis Inc ($66.2M).
Is it working?
ARKK is trailing the index this year: +9.8% versus +13.7%.
The last 12 months tell a different story — ARKK -2.7% versus the index's +17.5%, a 20-point gap.
The 112-point five-year shortfall is the hangover from ARKK's Feb 2021 peak. The fund fell 81% from that high by Dec 2022 and still sits 45% below it. Five years ago was close to the top, so the five-year number captures almost the whole fall.
| To date | 1 month | YTD | 1 year | 5 years |
|---|---|---|---|---|
| ARKK | -0.3% | +9.8% | -2.7% | -25.7% |
| S&P 500 (SPY) | +1.4% | +13.7% | +17.5% | +86.0% |
| Nasdaq-100 (QQQ) | +2.9% | +18.9% | +22.3% | +104.6% |
How we work this out
ETFpeek is an independent research tool and is not affiliated with ARK Invest or Cathie Wood. Figures are estimates from public fund data, shown for information only — not financial advice. Past performance does not indicate future results.