Cathie Wood's biggest trade of the day: $54.1M of Intellia Therapeutics Inc bought
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.
An estimated $54.1M of Intellia Therapeutics Inc (NTLA) was bought by ARKK on 9 Oct 2026. No other trade that day was bigger.
Money left the funds that day, nudging every holding shrank by roughly 38.2%. NTLA grew 38%, far more than the rest — that difference is the actual decision.
The month tells the same story: a net $7.5M bought over 26 trades.
Everything ARK did on 9 Oct 2026
ARK made 29 real moves that day, once money flowing in and out of the funds is stripped out:
| Stock | Funds | Est. value |
|---|---|---|
| NTLA Intellia Therapeutics Inc | ARKK | +$54.1M |
| ILMN Illumina Inc | ARKK | −$27.8M |
| SHOP Shopify Inc | ARKK | −$22.7M |
| HOOD Robinhood Markets IncSold 3 days running | ARKK | −$21.7M |
| TXG 10X Genomics Inc | ARKK | −$18.3M |
| ARKY Ark Active Autocall Inc ETFBought 3 days running | ARKK | +$16.7M |
The bigger picture: ARK's last 30 days
The 30-day picture: Nvidia Corp ($81.0M), Meta Platforms Inc ($62.0M), CoreWeave Inc ($53.9M) have taken the most new money. Meanwhile the funds have been trimming Advanced Micro Devices ($134.3M), 10X Genomics Inc ($94.6M), Twist Bioscience Corp ($56.2M).
Is it working?
ARKK is trailing the index this year: +13.9% versus +14.4%.
Over the past year the gap is wider: ARKK returned -5.3% against +16.2% for the S&P 500, 22 points apart.
Why so far behind over five years? The window starts almost exactly at ARKK's peak in Feb 2021. From there it lost 81%, bottoming in Dec 2022, and it has never fully recovered — it is still 43% under that high. The index had no crash of that size.
| To date | 1 month | YTD | 1 year | 5 years |
|---|---|---|---|---|
| ARKK | +1.8% | +13.9% | -5.3% | -19.5% |
| S&P 500 (SPY) | +1.3% | +14.4% | +16.2% | +89.0% |
| Nasdaq-100 (QQQ) | +4.2% | +22.0% | +22.7% | +113.1% |
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.