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The top performer is probably one you’ve never heard of. Over the past 60 years or so, ’s multi-billion stock portfolio has averaged almost a 20% return each year. That’s about twice as good as the S&P 500 over that same stretch. That performance has etched in stone the status of Berkshire Hathaway CEO Warren Buffett as one of the world’s greatest investors. Over the years, Buffett has invested in some great companies, including and , which he bought in the 1990s and still owns today. In recent years, two of the best stocks in the Berkshire Hathaway portfolio have been and . Apple has been Berkshire Hathaway’s largest holding pretty much since bought it in 2016 when Apple was trading at about $25 per share. It is now trading at around $265 per share. In 2023, roughly 50% of Berkshire’s portfolio was invested in Apple stock. Over the last two years, Buffett has been dumping Apple stock in a big way, but it’s still the largest holding, representing about 22%. Despite its recent sluggish performance, Apple has been a tremendous success for Buffett, returning 25% per year, on average, over the past 10 years. But Apple is just the second best performer in the Berkshire portfolio over the past 10 years. The Best Buffett Stock Before getting into the best performing Buffett stock, it’s worth mentioned that Amazon has been another stellar stock in the Berkshire portfolio. Buffett bought Amazon in 2019 when it was trading at the stock-split adjusted price of around $80 per share. Now Amazon stock is trading at around $215 per share. Back in 2019, Buffett called himself an “idiot” for not investing in Amazon sooner, according to the Financial Post. Over the past 10 years, Amazon has posted an average return each year of around 22%. But that too is short of the top performer. The best long-term stock in the Berkshire Hathaway portfolio right now is – and Buffett was late on this one too. HEICO Has Returned 28% Annually HEICO is an aerospace firm that makes components and systems for the aviation, defense, and electronics industries. Their technology is used on large commercial aircraft, regional, business and military aircraft, as well as on industrial turbines, targeting systems, missiles and electro-optical devices. Buffett did not buy HEICO shares until the second quarter of 2024, so the company has not benefitted that long from it. But HEICO stock is up 30% in 2025 and it gained around 34% in 2024. Berkshire still has a fairly small position in HEICO stock, about 0.13%, but added to it last quarter. Over the past 10 years, HEICO stock has had an average return of 28% per year, making it the top performing stock in the Berkshire Hathaway portfolio. It is a bit pricey trading at 69 times earnings, but Wall Street has set a median price target of $360 per share on the stock, which would be 16% upside. Whether or not HEICO can maintain its rapid rate of growth remains to be seen, but it will be interesting to watch what moves Buffett makes with this stock.
