Buffett’s secret stock? WarrenAI thinks it’s found the answer

Published 14/08/2025, 18:02
Updated 14/08/2025, 18:04
© Reuters

Investing.com -- Warren Buffett’s Berkshire Hathaway (NYSE:BRKa) is set to file its latest 13F with the SEC after the close of trading today. With it, Buffett is expected to reveal a new mystery stock position he has been building a multi-billion-dollar stake in.

In last quarter’s 13F, Berkshire disclosed: “Confidential Treatment Requested. (The Manager has omitted from this public Form 13F one or more holding(s) for which it is requesting confidential treatment from the U.S. Securities and Exchange Commission pursuant to section 13(f) of the Exchange Act and rule 24b-2 thereunder).”

This confidential treatment allows Berkshire to build the stake without publicly disclosing it, which would impact the price of the security.

So what stock did Buffett buy?

Astute Buffett-watchers note that the cost-basis for Berkshire’s equity investments in the “Commercial, industrial and other” have been growing without any corresponding disclosure in the 13F. Market speculators see this as the likely sector he is building a stake in.

Large mega-cap names in this sector that Berkshire doesn’t currently own include:

GE Aerospace (NYSE:GE), RTX Corp (NYSE:RTX), Lockheed Martin (NYSE:LMT), Caterpillar (NYSE:CAT), Boeing Co (NYSE:BA), Honeywell (NASDAQ:HON), GE Vernova (NYSE:GEV), and Deere & Company (NYSE:DE).

What does WarrenAI think?

We asked Investing.com’s AI stock research assistant, WarrenAI, which of the above stocks fits Berkshire’s investment style the best. Here’s what it said:

" Caterpillar stands out with a 16.4x P/E, robust 55.4% ROE, and a 5.5% free cash flow yield - the closest fit to classic Warren Buffett/Berkshire Hathaway style among your list. Translation: durable profitability, proven capital allocation, and shareholder-friendly policies, all at a valuation that doesn’t scream “bubble.”

Deere was another stock WarrenAI liked from the above list: Here’s what is said on Deere: "Cheaper on P/E (13.5x), fantastic 31.8% ROE, but facing revenue contraction (-15.8% in FY2024), which could give Buffett pause for now."

Here’s what it said about the other stocks:

  • GE: Impressive turnaround, but valuation (30.5x P/E) is rich for Buffett’s taste.
  • RTX/LMT: Defense sector’s stability is appealing, but high leverage (RTX: 71.9% D/E, LMT: 338.2% D/E) and premium price tags are drawbacks.
  • BA: Red-ink everywhere—negative earnings, negative equity, negative FCF. Berkshire avoids turnarounds this messy.
  • GE Vernova: Exciting growth, but an eye-watering 71.7x P/E and negative shareholder yield.
  • HON: Missing key profitability and valuation data.

“Buffett would likely put Caterpillar at the top of this list, with Deere a close second if revenues stabilize," according to WarrenAI. "Both offer the kind of moat, cash generation, and management discipline that have filled Berkshire’s portfolio for decades."

Latest comments

Risk Disclosure: Trading in financial instruments and/or cryptocurrencies involves high risks including the risk of losing some, or all, of your investment amount, and may not be suitable for all investors. Prices of cryptocurrencies are extremely volatile and may be affected by external factors such as financial, regulatory or political events. Trading on margin increases the financial risks.
Before deciding to trade in financial instrument or cryptocurrencies you should be fully informed of the risks and costs associated with trading the financial markets, carefully consider your investment objectives, level of experience, and risk appetite, and seek professional advice where needed.
Fusion Media would like to remind you that the data contained in this website is not necessarily real-time nor accurate. The data and prices on the website are not necessarily provided by any market or exchange, but may be provided by market makers, and so prices may not be accurate and may differ from the actual price at any given market, meaning prices are indicative and not appropriate for trading purposes. Fusion Media and any provider of the data contained in this website will not accept liability for any loss or damage as a result of your trading, or your reliance on the information contained within this website.
It is prohibited to use, store, reproduce, display, modify, transmit or distribute the data contained in this website without the explicit prior written permission of Fusion Media and/or the data provider. All intellectual property rights are reserved by the providers and/or the exchange providing the data contained in this website.
Fusion Media may be compensated by the advertisers that appear on the website, based on your interaction with the advertisements or advertisers
© 2007-2025 - Fusion Media Limited. All Rights Reserved.