Warren Buffett has a secret. In latest quarters, Berkshire Hathaway ‘s 13F has hinted at a place it’s constructing beneath confidential remedy. Clues within the firm’s 10Q filings level many observers to an industrial identify, with the stake approaching $5 billion. Combined with the Berkshire CEO and chairman’s well-known choice for sturdy corporations with deep moats, that is prompted guesses like Lockheed Martin , AO Smith or Huntington Ingalls . CNBC determined to toss the query to the bots. We fed a number of main synthetic intelligence fashions the identical immediate, informed them to ignore market chatter, and to rely solely on Berkshire’s filings and Buffett’s investing playbook. Then we pressed every for a particular identify. Here’s what they said. To be clear, this is not about nailing the decide and crowning an AI investing champ (although that may be enjoyable). It’s about seeing how completely different fashions purpose by way of an funding thesis and arrive at a name. The immediate we used: For the previous few quarters, Berkshire Hathaway’s 13F filings have disclosed a confidential holding. Using solely info from Berkshire’s personal filings (13Fs, 10Qs, 10Ks, and many others.) and your data of Warren Buffett’s funding technique, make a powerful, particular and well-reasoned guess as to what that holding is. Ignore hypothesis from market members and information articles. ChatGPT thinks the key holding is GE Aerospace . It picked up on that leap in Berkshire’s price foundation within the industrial and industrial area in the course of the first half of the yr. ChatGPT pointed to GE’s vast moat from its put in base and its long-duration money flows, that are traits that match a price investor’s style: “Buffett loves durable, toll-like economics,” it wrote. GE YTD mountain GE Aerospace shares yr to date ChatGPT known as its confidence “moderate” and provided Deere and UPS as runner-up picks. It additionally dominated out financials, mentioning that whereas the price foundation for industrials rose, it fell for the monetary bucket. Not so for Claude, which picked Chubb because the possible mystery identify and Microsoft’s Copilot, which selected Visa . Claude pointed to Chubb’s sturdy monetary place, its aggressive moat, succesful management and Buffett’s consolation with insurance coverage. The drawback: Berkshire already holds a large Chubb stake, to the tune of $8.2 billion as of its final 13F submitting. Same with Visa, the place Berkshire held practically $3 billion in shares. Copilot reasoned that Visa reinforces its moat with every transaction, generates recurring money flows and routinely posts round 30% return on fairness. Interestingly, Copilot additionally claimed there’s “no public 13F line for Visa” despite the fact that it seems in Berkshire’s newest submitting . V YTD mountain Visa shares yr to date Perplexity caught to the filings and landed in industrials. It known as out the roughly $5 billion leap in Berkshire’s industrial and industrials price foundation within the first half and the shortage of a brand new identify among the many high 5 disclosed holdings. From there, it argued the sample matches a big, wide-moat blue chip accrued beneath the radar. Its main picks: Caterpillar and UPS — put in bases, sturdy moats and powerful free money circulation. Perplexity additionally framed the greenback quantity as a “core” construct somewhat than a starter place, in line with how Berkshire has used confidentiality earlier than. CAT YTD mountain Caterpillar shares yr to date Gemini targeted on transportation. Using the identical industrial bucket clue and Berkshire’s previous use of confidential remedy, it said the path factors to logistics and freight rail. It leaned on basic Buffett filters: vast moats, important infrastructure, predictable money flows and simple fashions as the explanation to favor rails over different industrials. Gemini’s particular guesses: Union Pacific or CSX . Both, it argued, are long-duration compounding machines that Berkshire would plausibly accumulate quietly. Again, we’re not right here to reinvent the wheel or crown an AI inventory picker champion. The level is how they suppose. As for the mystery, buyers could have to wait and discover out when Berkshire lifts the veil.