August 16, 2026
Cathie Wood sold Palantir shares after its blowout earnings while Ark Invest bought more Cerebras Systems.
What happened
Ark Invest, led by Cathie Wood, reduced its stake in Palantir after the company reported earnings that beat expectations. At the same time, the firm added to its position in Cerebras Systems. The Palantir earnings surprise moved roughly 400 billion dollars of market value.
Why it matters
The trade captures a tension in AI investing. Wood takes profits in an expensive, established AI software name with a huge market value and redirects capital into a maker of chips designed specifically for AI. It is a bet that the next phase of AI demand will flow into specialized hardware rather than the broader data platforms where Palantir operates, and that Cerebras can capture enough of that flow to justify its smaller valuation.
The case against
Selling Palantir now may leave gains on the table if the company proves its software is essential infrastructure that grows alongside AI spending, not ahead of it. Cerebras faces massive, well-funded competitors in the chip space, and buying a small challenger with unproven durability could be the riskier bet.
Our read
Our grounded evidence shows investment in AI compute buildout will drive growth for years as capex rises. That supports the direction of the trade into Cerebras, but the case against our view warns that if AI infrastructure spending fails to produce revenue gains, overinvestment risks low returns for chip makers and their backers.
What settles it
Cerebras Systems' next quarterly revenue growth and customer count, compared against the pace of spending by the hyperscale cloud providers.