Home · Cathie Wood tracker · 21 Sep 2026
Cathie Wood trades · 21 Sep 2026

Big sale: $20.1M of Intellia Therapeutics Inc out of ARKK

ARKK did the selling. Plus the other trades that day and how ARK compares with the market.

Big sale: $20.1M of Intellia Therapeutics Inc out of ARKK

Generated from ARK's own holdings data.

An estimated $20.1M of Intellia Therapeutics Inc (NTLA) was sold by ARKK on 21 Sep 2026. No other trade that day was bigger.

Money came into the funds that day, nudging every holding grew by roughly 16.9%. NTLA shrank 17%, far more than the rest — that difference is the actual decision.

NTLA sold
$20.1M
ARKK
Days in a row
3
of selling
ARKK this year
+18.0%
S&P 500 +14.0%
ARKK over 5 years
-21.2%
S&P 500 +85.8%

This isn't a one-off. Across 23 trades in 30 days, ARK has sold a net $42.8M of the stock.

Everything ARK did on 21 Sep 2026

ARK made 1 real move that day, once money flowing in and out of the funds is stripped out:

StockFundsEst. value
NTLA Intellia Therapeutics IncSold 3 days runningARKK−$20.1M

The bigger picture: ARK's last 30 days

Across the month, the money has gone mostly into Nvidia Corp ($53.0M), Rocket Lab ($44.4M), Broadcom Inc ($40.9M). The biggest sales over the same period: Advanced Micro Devices ($122.8M), Palantir Technologies Inc ($66.6M), Tempus AI Inc ($58.8M).

Is it working?

So far this year ARKK is winning — +18.0% against the S&P 500's +14.0%.

That five-year gap — 107 points — mostly comes down to timing. Five years ago ARKK was trading close to its all-time high of Feb 2021. It then fell 81% to its low in Dec 2022, and it is still 41% below that peak today. Any comparison that starts near the top of that boom looks brutal.

To date1 monthYTD1 year5 years
ARKK+5.8%+18.0%+11.2%-21.2%
S&P 500 (SPY)+0.9%+14.0%+18.5%+85.8%
Nasdaq-100 (QQQ)+4.8%+21.5%+25.9%+105.3%
Track every Cathie Wood trade →Today's buys and sells, ARK vs the market, and how the six ARK funds compare. Updated every market day.

How we work this out

ARK publishes every fund's full holdings each day. We compare each day with the one before. When money flows into a fund, ARK buys more of every stock by the same percentage, so we strip that out and count only the moves beyond it as real decisions. Dollar values are estimates: shares traded × that day's price from ARK's own file.

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.