Berkshire Hathaway CEO Greg Abel has shifted more of the portfolio toward AI-themed stocks, a new report says

Berkshire Hathaway’s investment leadership, centered on CEO Greg Abel since he took the top job in January, has been linked to a sizable increase in exposure to artificial intelligence-themed equities, according to a market report published Thursday.

The report, carried by Yahoo Finance, says Abel has made “major shakeups” to Berkshire’s portfolio and points to what it describes as two “AI” stocks. It estimates that nearly 30% of Berkshire’s $351 billion investment portfolio is tied to those two positions.

Berkshire Hathaway is known for a disciplined, long-horizon approach to public equities and for acquiring entire businesses. Even within that style, the degree of concentration implied by the report is notable, because it suggests a relatively narrow slice of the portfolio is aimed at companies viewed as beneficiaries of the AI buildout.

The figure of “nearly 30%” is presented in the report in the context of Berkshire’s overall portfolio value of $351 billion. While the report characterizes the holdings as AI-related, it does not, in the available text here, detail the exact stock names, the dates of the purchases or adds, or whether the estimate is based on cost basis, market value, or a specific Berkshire disclosure line.

If accurate, concentration at this scale would underline how Berkshire’s leadership is balancing its traditional preference for durable business economics with the reality that investors, including long-term managers, have been revisiting valuation frameworks around AI-driven growth and capex cycles.

Separately, the report’s framing positions Abel’s portfolio moves as a defining feature of the post-Buffett transition era. Buffett’s long tenure shaped Berkshire’s investment culture, but the question for investors and observers is how much of that culture will remain constant as Abel becomes the principal decision-maker.

Berkshire does not typically provide piecemeal commentary on individual stock additions in a way that allows outsiders to reconstruct each decision with precision. Without the report’s underlying holdings list and methodology, it is still unclear from the available material whether the “AI” label reflects management commentary, business descriptions, analyst classification, or the stocks’ exposure to AI end markets.

What to watch next is whether Berkshire, in future quarterly filings and shareholder communications, offers clearer disclosure that helps investors map which public positions are driving the estimate and how those positions have changed since Abel’s start as CEO. Traders and long-term investors will likely also focus on any further changes in concentration, because position size is where portfolio risk can become most visible.