Cathie Wood’s Ark Invest made a series of major trades on August 17, buying heavily into Nvidia while cutting its positions in Advanced Micro Devices and Palantir Technologies.
Ark purchased 101,356 Nvidia shares through its ARKK ETF alone, at a closing price of $225.01. That puts the value of that single purchase at around $22.8 million. Ark also bought Nvidia shares across ARKF, ARKQ, ARKW, and ARKX.
The Nvidia buy comes as the company expands its AI infrastructure push. Nvidia secured 4.25 gigawatts of data center capacity in Ohio for OpenAI. That site could support between $150 billion and $200 billion in Nvidia revenue per system generation.
Reports also suggest Nvidia and OpenAI are restructuring their financing deal. Nvidia’s potential guarantee could drop from $250 billion to under $120 billion, while OpenAI’s total computing commitments through 2030 could represent around $600 billion in Nvidia systems.
On the same day Ark was buying Nvidia, it sold 25,917 AMD shares worth around $13.1 million across ARKF, ARKQ, ARKW, and ARKX.
AMD has had a strong year. The stock is up 136% year-to-date and gained 7% in just the past five days. Data center revenue jumped 107% year over year in Q2.
CEO Lisa Su said server revenue could grow more than 80% year over year in the second half of fiscal year 2026. The company also expects data center sales to more than double in 2027.
Despite Wood’s sale, Wall Street is not backing away from AMD. Bank of America analyst Vivek Arya has a Buy rating and a $620 price target, calling AMD the best-positioned CPU vendor on the market.
Phillip Securities analyst Yik Ban Chong is more bullish, with a $755 price target. He expects Anthropic to deploy 2 gigawatts of AMD’s MI450 GPUs starting next year, potentially adding $30 billion to AMD’s revenue.
AMD holds a Strong Buy consensus from 26 analysts with an average price target of $651.32, about 28% above current levels.
Ark also sold 22,023 Palantir shares through its ARKF ETF. At Palantir’s closing price of $172.55, that sale was worth approximately $3.8 million.
Palantir has focused its AI strategy on building software that works across multiple AI models rather than developing its own. The approach avoids heavy infrastructure costs while still benefiting from AI growth.
Among other trades on the day, Ark bought shares of Cloudflare and Tempus AI, while selling out of Roblox and Twist Bioscience.
Wood’s AMD sale appears to reflect a portfolio rebalancing toward Nvidia rather than a negative view on AMD’s AI prospects.
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