We just covered Bill Gates’ 2026 Portfolio: Top 10 Stocks to Buy. Berkshire Hathaway (NYSE:BRK.B) ranks #1 (see the Bill Gates’ 2026 Portfolio: Top 5 Stocks to Buy).

Berkshire Hathaway (NYSE:BRK.B) is the biggest holding of the Gates Foundation as of the end of the fourth quarter.

Berkshire Hathaway (NYSE:BRK.B) is a rare safe harbor amid rising volatility in financial markets. It sits on a massive $373 billion war chest of cash, earning billions in risk-free interest from Treasury bills while waiting for the perfect time to strike when any opportunity arises.

 

Berkshire Hathaway (NYSE:BRK.B)’s massive bet on “old-world” energy is paying off as oil prices climb and demand for reliable power grows. It owns large stakes in Chevron and Occidental Petroleum. Berkshire Hathaway Energy’s pipeline network transported about 14% of the natural gas consumed in the U.S. in 2024. Another strong growth catalyst for Berkshire Hathaway (NYSE:BRK.B) is its insurance business, where disciplined underwriting has produced a combined ratio around 87%, showing consistent underwriting profit while many competitors struggle to stay below 100%. Its insurance float — investable funds from premiums — has grown to about $176 billion. This low-cost capital can be deployed into stocks, bonds, and acquisitions to drive long-term compounding growth.

While we acknowledge the potential of BRK.B as an investment, we believe certain AI stocks offer greater upside potential and carry less downside risk. If you're looking for an extremely undervalued AI stock that also stands to benefit significantly from Trump-era tariffs and the onshoring trend, see our free report on the best short-term AI stock.

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