Cathie Wood Makes Major Shift After Big Tech Gains
ARK Invest, led by Cathie Wood, recently rotated its portfolio, increasing stakes in Teradyne (TER) and AeroVironment (AVAV) while reducing positions in Advanced Micro Devices (AMD), Taiwan Semiconductor (TSM), and Eli Lilly (LLY). The moves reflect a shift toward robotics, defense, and autonomous technologies, with significant purchases in TER and AVAV following strong earnings reports. ARK sold approximately $16.2M in AMD, $10.6M in TSM, and $24M in LLY, harvesting gains from these stocks.
How this was made

The 30-second read
Why it matters
Fund activity can act as a catalyst for the mentioned tickers, especially for mid‑cap names like TER and AVAV.
Market read
ARK’s rotation signals a strategic tilt toward defense and robotics, while trimming exposure to previously high‑flying semiconductor and pharma stocks.
What to watch
ARK’s moves may reflect internal portfolio rebalancing rather than fundamental changes in the sold stocks.
Background
ARK Invest routinely files 13F disclosures; this article reports its latest weekly trades.
Ticker impact
ARK Invest added roughly 74,700 TER shares worth $16.9 M after its Q3 earnings, indicating fresh buying pressure.
likely upward as market prices in the fresh demand
ARK’s disclosed purchase is a primary source and the amount is material for a mid‑cap stock.
ARK added AVAV shares worth $8.3 M across ARKQ and ARKX, signaling fresh exposure to defense drones.
likely upward as investors follow ARK’s stance
First‑report of a sizable fund purchase in a niche defense play.
ARK sold roughly $16.2 M of AMD shares during the week after the stock’s strong run.
likely downward as market absorbs the supply
Disclosed sell‑off is material but offset by AMD’s broader momentum.
ARK sold about $10.6 M of TSMC shares after the chipmaker’s earlier gains.
likely downward, especially in the short term
Fund sell‑off is a fresh data point for a large cap, but impact may be limited.
ARK sold roughly $24 M of LLY shares on Oct. 30, trimming exposure after a strong run.
likely downward as market digests the sell‑off
Significant dollar amount for a pharma stock; first‑report of the trade.
Market effects
Highlights a shift toward robotics, defense and autonomous tech, potentially boosting related sector ETFs.
U.S. equity market may see modest reallocation from semiconductors to defense‑oriented names.
Signals broader investor appetite for AI‑linked industrial hardware worldwide.
Counterpoint
The sell‑offs in AMD, TSMC and LLY could be over‑reacted to; the stocks may still have upside.
Key entities
- personCathie Wood
Founder of ARK Invest, whose fund allocations influence market sentiment.
- fundARK Invest
Active manager known for thematic, high‑growth bets.


