Cathie Wood's ARK Invest increased its exposure to Amazon (NASDAQ:AMZN) and CoreWeave (NASDAQ:CRWV) while selling Advanced Micro Devices (NASDAQ:AMD) and Roblox (NYSE:RBLX), sharpening the firm's bet on companies positioned closer to the buildout of artificial-intelligence infrastructure. The trades suggest ARK is rotating toward cloud capacity and computing demand after powerful rallies across several technology stocks.
According to ARK's daily disclosures, the firm bought 73,835 Amazon shares worth roughly $20 million and added 169,616 CoreWeave shares valued at about $12.17 million on Monday, Aug. 3.
CoreWeave operates specialized cloud infrastructure built around high-performance graphics processors. It rents AI computing capacity to technology companies and model developers, giving investors direct exposure to demand for scarce Nvidia-powered systems but also exposing the business to heavy capital spending, financing needs and customer concentration.
ARK simultaneously sold 30,727 AMD shares worth approximately $14.63 million and unloaded 505,751 Roblox shares valued at about $18 million. The AMD sale does not necessarily signal a bearish view, because ARK frequently trims positions after strong gains to manage portfolio weightings. AMD shares were up sharply around the trade.
Wood's Amazon purchase followed a 4.6% rally that pushed the company's market capitalization above $3 trillion. The move came after Amazon Web Services reported second-quarter revenue of $42.2 billion, up 37% from a year earlier and its fastest growth in more than four years.
Amazon also increased its projected 2026 capital spending to $220 billion from $200 billion. ARK's purchase indicates confidence that accelerating AWS demand can eventually justify that spending, even as higher investment pressures near-term cash flow.
Investor Takeaway
Investors should view the trades as a relative allocation decision rather than four separate investment verdicts. ARK appears to favor companies monetizing AI infrastructure demand directly, while harvesting gains elsewhere.
For Amazon, the key measures are AWS growth, backlog conversion and free cash flow after capital spending. For CoreWeave, investors should track utilization, financing costs and customer concentration. Continued AMD sales would carry more weight if accompanied by weaker AI guidance, while further Amazon and CoreWeave purchases would strengthen the case that ARK is deliberately concentrating its portfolio around cloud infrastructure.
