Cathie Wood’s weekly update: buys Cerebras, Tempus AI, sells AMD and TSM

Ark Invest rotated its ETF portfolios last week, increasing exposure to AI infrastructure, fintech, defense tech and genomic medicine while trimming semiconductor, genomics and space holdings. The firm bought shares in AI-driven healthcare and chip-inference names (Tempus AI, Cerebras Systems, Intellia, Natera, Kodiak AI) and reduced or sold positions including Advanced Micro Devices and Taiwan Semiconductor Manufacturing. The moves represent active reweighting toward AI and healthcare-related growth themes and away from some traditional semiconductor and space names, a shift that may pressure the beaten-down semiconductor names like AMD while supporting AI-infrastructure and genomic plays. ARK-related ETFs (shown in the article) were trading lower on the day of the report, highlighting short-term selling pressure on ARK strategies.