Following Cathie Wood: Aggressively buying AMD, Tesla, and TEM amid sharp declines; selling Teradyne at highs and cutting ad stocks

Last night and this morning, the U.S. stock market continued its sector rotation trend. Pressured by the ongoing pullback of several heavyweight tech stocks, the Nasdaq fell more than 1% for the second consecutive day. Although the S&P 500 Index also closed lower, over 70% of its components ended the session in positive territory.

At the close, the S&P 500 Index was down 0.51% at 6882.72 points, the Nasdaq Composite Index fell 1.51% to 22904.58 points, and the Dow Jones Industrial Average gained 0.53% to 49501.3 points. After two consecutive days of declines, the Nasdaq also broke below its 100-day moving average.

As the Nasdaq attempts to find a new direction, ARK Invest's leader 'Woodie' Cathie Wood did not retreat but instead executed an aggressive portfolio reshuffle.

Direction of increased positions: Firmly betting on 'AI hard tech' and computing infrastructure.

In last night’s U.S. stock trading, semiconductor and AI infrastructure sectors remained the focus of capital competition. Woodie’s operations pointed directly to this core:

Heavy position$Advanced Micro Devices (AMD.US)$(+141,100 shares) and$Tesla (TSLA.US)$(+35,800 shares):Amid AMD's sharp decline post-earnings, 'Woodie' heavily bought the dip, showing her confidence in AMD’s ability to capture market share in the AI inference chip market by 2026. At the same time, continuing to increase Tesla holdings reflects not only optimism about EVs but also a bet on Tesla's Robotaxi and FSD (Full Self-Driving) commercialization just before its launch.

Betting on the new darling of computing power $CoreWeave (CRWV.US)$ (+31,400 shares): As a leader in the AI computing power cloud rental space, CoreWeave is one of the purest "picks and shovels" plays in this round of the AI boom. ARK's purchase of CRWV suggests that Cathie Wood believes the shortage of computing power will persist until 2026, and that cloud computing firms still have significant upside potential in valuation.

Positioning in the AI application layer: $Tempus AI (TEM.US)$(+408,000 shares): This is the largest position increase in this round. Tempus, a representative of AI + precision medicine, fits ARK's consistent preference for "disruptive innovation."

Reduction focus: Cutting loose former "SaaS darlings" and ad stocks

On the sell list, we see many of ARK’s past "favorites," suggesting defensive adjustments to their portfolio or a reassessment of valuations:

$The Trade Desk (TTD.US)$(-156,800 shares) and $Pinterest (PINS.US)$ (-107,100 shares):CloudX was officially launched overnight, with plans to use AI agents to reconstruct the mobile advertising technology stack. US stocks continue to indiscriminately play out the logic of AI disrupting traditional software. In this context, ARK's reduction in holdings of TTD and PINS indicates that ARK is retreating from ad models based purely on traffic monetization and instead seeking growth points with higher technical barriers.

$Unity Software (U.US)$(-78,600 shares):Unity, once a leader in the metaverse, seems to have exhausted ARK’s patience after experiencing multiple rounds of painful transitions. In 2026, when AI-generated 3D content (AIGC) technology is advancing rapidly, traditional engine companies without significant breakthroughs are highly susceptible to being marginalized.

$Teradyne (TER.US)$(-258,000 shares):Teradyne, a leader in semiconductor testing equipment, has seen a significant reduction in holdings, likely reflecting ARK’s strategy of reducing positions at high points to reallocate funds to companies on the verge of explosive growth.

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