Quick Summary
- ARK Invest liquidated $16.3 million worth of AMD stock on May 18 across multiple ETFs
- The largest acquisition was L3Harris Technologies valued at $3.18 million
- Additional purchases included Amazon, Archer Aviation, and Joby Aviation shares
- Other semiconductor exits encompassed Taiwan Semiconductor and Teradyne holdings
- Portfolio rebalancing indicates ARK’s rotation from chip stocks toward defense, retail tech, and urban air mobility
Cathie Wood’s investment firm, ARK Invest, executed multiple strategic portfolio adjustments on Monday, May 18, 2026, as revealed in the company’s mandatory daily transaction reports. The trading activity demonstrates a deliberate pivot from semiconductor holdings toward defense contractors, online retail giants, and emerging aviation technology.
Advanced Micro Devices represented the day’s most substantial divestment. The firm eliminated 38,529 shares valued at $16.3 million from its ARKK, ARKW, and ARKF exchange-traded funds. AMD’s stock price has experienced remarkable growth this year, climbing approximately 98% due to robust artificial intelligence chip sales and expanding data center infrastructure requirements.
Advanced Micro Devices, Inc., AMD
Taiwan Semiconductor also faced significant selling pressure from ARK, with $12.1 million in shares exited. The semiconductor manufacturer has posted gains exceeding 33% since January, positioning it as another semiconductor holding that ARK decided to reduce following substantial appreciation.
Teradyne represented a third major semiconductor position liquidation. ARK disposed of approximately $14.7 million in holdings. The chip-testing apparatus manufacturer has surged more than 74% year-to-date, benefiting from escalating artificial intelligence infrastructure investments.
Top ARK Acquisitions
L3Harris Technologies, a prominent defense industry contractor, commanded the day’s highest investment priority. ARK purchased approximately $3.18 million in equity through its ARKX space exploration ETF. The security appreciated 2.5% during Monday’s session, mirroring broader market enthusiasm for defense sector investments.
Amazon received nearly $1.84 million in fresh capital allocation from ARK. The e-commerce behemoth maintains dominant positioning in cloud infrastructure services via Amazon Web Services and has appreciated more than 14% in 2026.
Archer Aviation secured roughly $1.7 million in new ARK investment. Despite the electric air taxi manufacturer declining approximately 20% this year, financial analysts continue forecasting potential gains exceeding 100%.
Joby Aviation represented another urban air mobility investment. ARK allocated about $1.23 million to acquire additional shares. Both Archer and Joby compete in the electric vertical takeoff and landing sector, commonly abbreviated as eVTOL.
Additional Trading Activity
ARK purchased 52,308 shares of Bullish totaling $1.87 million and acquired 45,218 shares of Kratos Defense and Security Solutions for $2.36 million. These transactions expand ARK’s exposure to defense technology and financial technology sectors.
Regarding portfolio reductions, ARK decreased its Roku stake by disposing of 45,320 shares worth $5.6 million. The firm simultaneously trimmed 145,039 shares of Rocket Lab, representing approximately $5.6 million in value. Rocket Lab stock advanced another 5% on Monday, extending its year-to-date gains to nearly 79%.
The comprehensive trading pattern from Monday’s transactions suggests ARK is crystallizing gains from semiconductor and aerospace stocks that have delivered exceptional 2026 performance.
Proceeds are being redeployed into defense industry contractors, aviation technology startups, and established technology leaders like Amazon. This approach aligns with ARK’s publicly stated investment philosophy targeting disruptive, innovation-driven industries.
Citi analyst Atif Malik elevated his AMD price target from $358 to $460 on Monday, highlighting accelerating AI server CPU adoption. Notably, this bullish analyst revision occurred simultaneously with ARK’s decision to divest the position.





